{ "data": { "a": { "slug": "crossmint", "name": "Crossmint API + Docs MCP", "vendor": "Crossmint", "vendorUrl": "https://www.crossmint.com", "kind": "http-api", "category": "payment-platforms", "summary": "Wallet, checkout and stablecoin infrastructure with an agent product line.", "url": "https://www.anchorterminal.com/tools/crossmint", "markdownUrl": "https://www.anchorterminal.com/tools/crossmint.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/crossmint.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/crossmint.json", "dns": "crossmint.grade.anchorterminal.com", "repo": "https://github.com/Crossmint/crossmint-sdk", "license": "Apache-2.0", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://www.crossmint.com/api", "packages": [ { "registry": "npm", "name": "@crossmint/wallets-sdk" }, { "registry": "npm", "name": "@crossmint/client-sdk-react-ui" } ], "auth": "api-key", "authNotes": "Server-side and client-side API keys in the X-API-KEY header, each with scopes; client keys can require JWTs from your own auth provider. Staging keys work on testnets at staging.crossmint.com and production keys on mainnets. The docs MCP server needs no auth.", "pricing": "freemium", "pricingNotes": "Wallets free for 1,000 monthly active wallets and up to 2,000 transactions. Overages start at $0.025 per monthly active user in the plan card and $0.02 per monthly active wallet in the comparison table, with volume discounts. Tokenisation from $0.01 an action, and metadata uploads $0.002 each. Onramp, offramp, checkout and stablecoin orchestration are per-transaction fees with volume discounts, not published. Agent Cards and Agent Checkouts pricing isn't published. Enterprise (premium SLAs and rate limits) is through sales (https://www.crossmint.com/pricing).", "priceSummary": "$0.02 / mo", "where": "hosted", "x402": { "level": "partial", "evidence": "Agent Wallets pay x402 and MPP endpoints, and an n8n node puts an x402 paywall in front of workflows. The Crossmint API itself isn't paid over x402 (https://docs.crossmint.com/agents/payment-flows/x402).", "endpoints": [] }, "toolCount": 1, "popularity": { "githubStars": 52, "npmWeekly": 39991, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.crossmint.com/agents/overview", "llmsTxt": "https://docs.crossmint.com/llms.txt", "openapi": "https://raw.githubusercontent.com/Crossmint/crossmint-sdk/main/packages/wallets/src/openapi.json", "capabilities": [ "payments.card", "payments.x402", "payments.stablecoin", "payments.checkout", "payments.payouts" ], "tags": [ "hosted", "freemium", "mcp", "llms-txt", "stablecoin", "x402", "wallet", "typescript", "webhooks" ], "lastRelease": "2026-10-29", "graded": true, "anchor": { "graded": true, "score": 65.1, "grade": "B", "agentReady": false, "rank": 438, "ranked": true, "rankOf": 1513, "categoryRank": 7, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 77, "maintenance": 85, "payments": 50, "reliability": 53, "schema": 71, "security": 73, "transparency": 80 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-01" }, "negative": -3, "negativeNotes": [ "2026-10-14. @crossmint/wallets-sdk 1.20.1, a patch release, removed the Abstract chain (`abstract`, `abstract-testnet`). Its changelog says \"Code that passes one of these names no longer compiles\" and runtime validation throws `InvalidChainError`. We found no earlier deprecation in the SDK and no entry in the docs changelog, whose newest entry is 11 February 2026. A breaking change shipped without notice, so 3 points, the floor, because the Abstract network itself shuts down on 15 December 2026. https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/CHANGELOG.md" ], "verdict": "Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain, and wallet writes take a documented idempotency key. Onramp, offramp, checkout, Agent Cards and Agent Checkouts have no published price, and the status history couldn't be read.", "bestFor": "Products that let agents spend, especially where a user wants a capped card or a capped stablecoin wallet for an agent, or an agent that buys from ordinary merchant sites.", "strengths": [ "Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain", "Scoped server and client API keys, with each operation's required scope named in the spec", "`x-idempotency-key` documented on wallet, transaction, transfer and signature creation", "Official SDKs in TypeScript, Swift, Kotlin and Flutter", "18 SDK release commits in the 90 days to 29 October 2026" ], "weaknesses": [ "No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts", "Agent Checkouts runs in production only, so the first test spends real money", "wallets-sdk 1.20.1, a patch release, removed the Abstract chain with no prior deprecation", "The docs changelog stops at 11 February 2026, so API changes appear only in SDK changesets", "No MCP server for wallets or payments, only docs search and console management" ], "agentNotes": [ "Send an `x-idempotency-key` on every wallet, transaction or transfer create so a retry can't pay twice", "Use staging keys against testnets; production keys work on mainnets only, and Agent Checkouts has no staging at all", "On 429, wait and retry. No Retry-After header is documented, and writes are capped at 120 a minute per project", "Use Agent Wallets for x402 and MPP endpoints and Agent Cards for card merchants; they aren't interchangeable", "Connect the console MCP server to staging first. It has full access to the organisation, including deleting API keys" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 65.1 } ], "editorialScores": { "ergonomics": 77, "maintenance": 85, "payments": 50, "reliability": 53, "schema": 71, "security": 73, "transparency": 65 }, "provenanceScore": 95, "checked": { "categories": { "ergonomics": "2026-11-01", "maintenance": "2026-11-01", "payments": "2026-11-01", "reliability": "2026-11-01", "schema": "2026-11-01", "security": "2026-11-01", "transparency": "2026-11-01" }, "last": "2026-11-01", "lastMoved": "2026-11-01", "oldest": "2026-11-01", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl -X POST https://staging.crossmint.com/api/2025-06-09/wallets -H \"X-API-KEY: $CROSSMINT_API_KEY\" \\\n -H \"Content-Type: application/json\" -d '{\"chainType\":\"evm\"}'", "claudeCode": "claude mcp add --transport http crossmint-docs https://docs.crossmint.com/mcp", "config": { "mcpServers": { "crossmint-docs": { "url": "https://docs.crossmint.com/mcp" } } } }, "letme": { "capability": "https://letme.dev/payments.card", "tool": "https://letme.dev/crossmint" }, "area": "payments", "unitPrices": [ { "item": "Wallet over free tier", "unit": "month", "usd": 0.02, "note": "per monthly active wallet above 1,000 in the comparison table; the plan card says from $0.025 per monthly active user; volume discounts" }, { "item": "Tokenisation action", "unit": "call", "usd": 0.01, "note": "starting price, volume discounts" } ], "provenance": { "legalEntity": "Crossmint, Inc.", "domain": "crossmint.com", "domainRegistered": "2007-02-23", "domainNote": "crossmint.com was registered in 2007, long before Crossmint was founded. Terms also name Crossmint Europe, S.L. and Crossmint Horizon, Inc. The security.txt lists a contact and policy but no Expires field.", "endpointOnVendorDomain": true, "terms": "https://www.crossmint.com/legal/terms-of-service", "privacy": "https://www.crossmint.com/legal/privacy-policy", "statusPage": "https://status.crossmint.com", "changelog": "https://docs.crossmint.com/changelog", "securityTxt": "valid", "checked": "2026-09-30", "score": 95 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/crossmint.json", "live": { "slug": "crossmint", "probe": { "target": "https://www.crossmint.com/api", "method": "get", "lastAt": "2026-11-08T14:47:46.103389358Z", "lastOk": true, "lastStatus": 404, "lastMs": 151, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 176, "p95ms24h": 399, "samples24h": 242, "samples30d": 7844, "days": [ { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 255, "ok": 255 }, { "date": "2026-10-20", "probes": 252, "ok": 252 }, { "date": "2026-10-21", "probes": 253, "ok": 253 }, { "date": "2026-10-22", "probes": 253, "ok": 253 }, { "date": "2026-10-23", "probes": 248, "ok": 248 }, { "date": "2026-10-24", "probes": 251, "ok": 251 }, { "date": "2026-10-25", "probes": 250, "ok": 250 }, { "date": "2026-10-26", "probes": 252, "ok": 252 }, { "date": "2026-10-27", "probes": 249, "ok": 249 }, { "date": "2026-10-28", "probes": 251, "ok": 251 }, { "date": "2026-10-29", "probes": 248, "ok": 248 }, { "date": "2026-10-30", "probes": 249, "ok": 249 }, { "date": "2026-10-31", "probes": 251, "ok": 251 }, { "date": "2026-11-01", "probes": 249, "ok": 249 }, { "date": "2026-11-02", "probes": 250, "ok": 250 }, { "date": "2026-11-03", "probes": 248, "ok": 248 }, { "date": "2026-11-04", "probes": 246, "ok": 246 }, { "date": "2026-11-05", "probes": 185, "ok": 185 }, { "date": "2026-11-06", "probes": 241, "ok": 241 }, { "date": "2026-11-07", "probes": 243, "ok": 243 }, { "date": "2026-11-08", "probes": 150, "ok": 150 } ], "since": "2026-10-08T00:00:00Z" }, "vendorStatus": { "page": "https://status.crossmint.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-08T14:50:32.503864683Z" }, "versions": [ { "registry": "npm", "name": "@crossmint/client-sdk-react-ui", "version": "5.0.1", "seenAt": "2026-11-08T00:47:53.303717495Z" }, { "registry": "npm", "name": "@crossmint/wallets-sdk", "version": "1.22.2", "seenAt": "2026-11-08T00:47:52.898778217Z" } ], "githubStars": 52, "npmWeekly": 64670, "securityTxt": { "url": "https://crossmint.com/.well-known/security.txt", "state": "valid", "checkedAt": "2026-11-07T15:59:52.664066677Z" }, "llmsTxt": { "url": "https://docs.crossmint.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:32:13.809936776Z" }, "domain": { "domain": "crossmint.com", "registered": "2007-02-23", "source": "https://rdap.verisign.com/com/v1/domain/crossmint.com", "checkedAt": "2026-11-08T14:38:00.196161645Z" }, "pages": [ { "url": "https://docs.crossmint.com/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-11-07T14:05:59.722566865Z", "changedAt": "2026-11-06T13:28:25.393114786Z", "fingerprint": "188d0c45a69b" }, { "url": "https://www.crossmint.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-11-07T14:27:42.91516896Z", "changedAt": "2026-11-06T13:48:34.847375497Z", "fingerprint": "62cd4df4c134" }, { "url": "https://www.crossmint.com/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:27:38.401376233Z", "changedAt": "2026-11-06T13:48:28.050057456Z", "fingerprint": "c548913f4f63" }, { "url": "https://www.crossmint.com/legal/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T14:27:40.751675042Z", "changedAt": "2026-10-14T21:11:51.277270985Z", "fingerprint": "8d923884e3be" } ], "mcpTools": { "url": "https://docs.crossmint.com/mcp", "checkedAt": "2026-11-08T01:57:15.441226253Z", "status": "ok", "protocol": "2026-07-28", "tools": [ { "name": "search_crossmint_docs", "title": "Search documentation", "description": "Search across the Crossmint Docs knowledge base to find relevant information, code examples, API references, and guides. Use this tool when you need to answer questions about Crossmint Docs, find specific documentation, understand how features work, or locate implementation details. The search returns contextual content with titles and direct links to the documentation pages. If you need the full content of a specific page, use the query_docs_filesystem tool to `head` or `cat` the page path (append `.mdx` to the path returned from search — e.g. a result at `/some/page` is read with `head -200 /some/page.mdx`).", "inputSchema": { "additionalProperties": false, "properties": { "query": { "description": "Search query", "type": "string" } }, "required": [ "query" ], "type": "object" }, "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true, "title": "Search documentation" } }, { "name": "query_docs_filesystem_crossmint_docs", "title": "Query documentation filesystem", "description": "Run a read-only shell-like query against a virtualized, in-memory filesystem rooted at `/` that contains ONLY the Crossmint Docs documentation pages and OpenAPI specs. This is NOT a shell on any real machine — nothing runs on the user's computer, the server host, or any network. The filesystem is a sandbox backed by documentation chunks.\n\nThis is how you read documentation pages: there is no separate \"get page\" tool. To read a page, pass its `.mdx` path to `head` or `cat` — a page at the URL path `/some/page` lives at `/some/page.mdx`. To search the docs with exact keyword or regex matches, use `rg`. To understand the docs structure, use `tree` or `ls`.\n\n**Paths are specific to this site — never guess them.** Discover real paths with `tree / -L 2`, `ls /`, or the search tool before reading. If a path does not exist, that only means the guess was wrong; it does NOT mean the topic is undocumented — use `rg -il \"keyword\" /` to find where it is covered.\n\n**Workflow:** Start with the search tool for broad or conceptual queries like \"how to authenticate\" or \"rate limiting\". Use this tool when you need exact keyword/regex matching, structural exploration, or to read the full content of a specific page by path.\n\nSupported commands: rg (ripgrep), grep, find, tree, ls, cat, head, tail, stat, wc, sort, uniq, cut, sed, awk, jq, plus basic text utilities. No writes, no network, no process control. Run `--help` on any command for usage.\n\nEach call is STATELESS: the working directory always resets to `/` and no shell variables, aliases, or history carry over between calls. If you need to operate in a subdirectory, chain commands in one call with `\u0026\u0026` or pass absolute paths (e.g., `cd /some-directory \u0026\u0026 ls` or `ls /some-directory`). Do NOT assume that `cd` in one call affects the next call.\n\nExamples (replace the placeholder paths with real ones from `tree` or search):\n- `tree / -L 2` — see the top-level directory layout\n- `rg -il \"rate limit\" /` — find all files mentioning \"rate limit\"\n- `rg -C 3 \"apiKey\" /some-directory/` — show matches with 3 lines of context around each hit\n- `head -80 /some/page.mdx` — read the top 80 lines of a specific page\n- `head -80 /page-one.mdx /page-two.mdx /section/page-three.mdx` — read multiple pages in one call\n- `cat /some/page.mdx` — read a full page when you need everything\n- `cat /openapi/api-reference/_open-api/Orders.json | jq '.paths | keys'` — list OpenAPI endpoints\n\nOpenAPI specs for this site are mounted at: `/openapi/api-reference/_open-api/Orders.json`, `/openapi/api-reference/_open-api/Agents.json`, `/openapi/api-reference/_open-api/Wallets.json`, `/openapi/api-reference/_open-api/PaymentMethods.json`, `/openapi/api-reference/_open-api/VerifiableCredentialsAPIs.json`, `/openapi/api-reference/_open-api/Users.json`, `/openapi/api-reference/_open-api/MintingAPIs.json`, `/openapi/api-reference/_open-api/Tokens.json`, `/openapi/api-reference/_open-api/AdminAPIs.json`. Use them to answer questions about endpoints, request/response schemas, parameters, and authentication.\n\nOutput is truncated to 30KB per call. Prefer targeted `rg -C` or `head -N` over broad `cat` on large files. To read only the relevant sections of a large file, use `rg -C 3 \"pattern\" /path/file.mdx`. Batch multiple file reads into a single `head` or `cat` call whenever possible.\n\nWhen referencing pages in your response to the user, convert filesystem paths to URL paths by removing the `.mdx` extension. For example, `/some/page.mdx` becomes `/some/page`.", "inputSchema": { "additionalProperties": false, "properties": { "command": { "description": "A shell command to run against the virtualized documentation filesystem (e.g., `rg -il \"keyword\" /`, `tree / -L 2`, `head -80 /path/file.mdx`).", "type": "string" } }, "required": [ "command" ], "type": "object" }, "annotations": { "destructiveHint": false, "idempotentHint": true, "openWorldHint": false, "readOnlyHint": true, "title": "Query documentation filesystem" } }, { "name": "submit_feedback", "title": "Submit documentation feedback", "description": "Report a problem with this documentation site so the docs team can fix it. Use when a documentation page is incorrect, outdated, confusing, incomplete, or has a broken example. This is for feedback about the documentation content itself — not for product support requests or feedback about this tool or assistant.", "inputSchema": { "additionalProperties": false, "properties": { "feedback": { "description": "A clear description of the documentation issue or suggestion — what is incorrect, outdated, missing, or confusing.", "minLength": 1, "type": "string" }, "path": { "description": "The URL path of the documentation page the feedback is about (the page you were reading, without the `.mdx` extension).", "minLength": 1, "type": "string" } }, "required": [ "path", "feedback" ], "type": "object" }, "annotations": { "destructiveHint": false, "idempotentHint": false, "openWorldHint": true, "readOnlyHint": false, "title": "Submit documentation feedback" } } ], "schemaTokens": 1525, "changedAt": "2026-11-07T01:43:40.778862403Z", "check": { "checker": "anchor-check/1.0", "totalTokens": 1525, "counts": { "error": 0, "note": 1, "warn": 1 }, "findings": [ { "rule": "TC07", "severity": "warn", "tool": "query_docs_filesystem_crossmint_docs", "message": "the description is about 883 tokens", "fix": "Keep the description to what a model needs to choose and call the tool; move the manual to a resource or the docs." }, { "rule": "TC24", "severity": "note", "message": "3 of 3 tools have no outputSchema", "fix": "Declare outputSchema for tools that return structured data, and return structuredContent that matches it." } ] } }, "github": { "repo": "crossmint/crossmint-sdk", "checkedAt": "2026-11-02T08:42:10.292868634Z", "stars": 52, "archived": false, "issuesEnabled": true, "pushedAt": "2026-11-02T04:00:17Z", "openIssues": 25, "openPRs": 98, "issuesOpened90d": 2, "issuesClosed90d": 2, "prsMerged90d": 160, "ci": { "branch": "main", "runs": 50, "success": 48, "failure": 0, "other": 2, "latest": "success", "latestAt": "2026-10-29T22:36:06Z" }, "replies": { "sampled": 25, "unanswered": 14, "medianDays": 35.2 } }, "updatedAt": "2026-11-08T14:50:32.503864683Z" }, "streak": { "days": 31, "from": "2026-10-08", "sinceWatching": true, "best": 31 } }, "answer": "Crossmint API + Docs MCP scores 65.1 (B) on agent readiness against FluxA AgentMarket's 48.4 (D), and leads in 6 of 7 scored categories. FluxA AgentMarket leads on payments \u0026 pricing.", "b": { "slug": "fluxa-agentmarket", "name": "FluxA AgentMarket", "vendor": "FluxA Technology Pte. Ltd.", "vendorUrl": "https://agentmarket.fluxapay.xyz", "kind": "http-api", "category": "payment-platforms", "summary": "FluxA AgentMarket is a marketplace where AI agents find and pay for APIs, installable skills and LLM models, per call over x402 in Base USDC or from a prepaid Balance, with listings from FluxA and third-party creators.", "url": "https://www.anchorterminal.com/tools/fluxa-agentmarket", "markdownUrl": "https://www.anchorterminal.com/tools/fluxa-agentmarket.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/fluxa-agentmarket.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/fluxa-agentmarket.json", "dns": "fluxa-agentmarket.grade.anchorterminal.com", "repo": "https://github.com/FluxA-Agent-Payment/FluxA-AI-Wallet-MCP", "license": "Proprietary hosted service under the AgentMarket Terms of Service (effective 14 January 2026). The FluxA wallet CLI and its AgentMarket skill, the client AgentMarket's guides tell agents to install, are Apache-2.0 on GitHub", "transports": [ "http" ], "remoteUrl": "https://router.fluxapay.xyz", "packages": [ { "registry": "npm", "name": "@fluxa-pay/fluxa-wallet" }, { "registry": "npm", "name": "@fluxa-pay/fluxa-connect-mcp" } ], "auth": "mixed", "authNotes": "Discovery at `/api/discover` needs no credential. Paid APIs on router.fluxapay.xyz take an x402 payment per call, or a Bearer `fxa_live_` API key or FluxA Agent VC to charge the AgentMarket Balance. A person creates `fxa_live_` keys at agentmarket.fluxapay.xyz/keys (shown once), and each key carries a spending limit in Units that can change at any time. An Agent VC is a 5-minute token from FluxA AgentID, minted by the wallet CLI. Keys can also be listed, created, updated and revoked over `/llm/keys` with an Agent VC, and creation can be set to need a person's approval. Revocation is immediate.", "pricing": "usage", "pricingNotes": "Pay per call for listed APIs and per token for models, with no subscription except monthly Token Plans. Each API listing sets its own price, shown as a USD range in the catalogue (from $0.001 to $30 a call across the first 50). Model prices are published per 1M tokens. The Balance is bought in bundles of $1, $5, $10 and $25 by card (Stripe), from the FluxA wallet or with USDC from another wallet. Token Plans cost $18, $56 or $131.50 a month. Unused top-ups are refundable within 14 days; failed tasks from technical errors are credited back to the Balance. No free credit was found. The creator page states a 0 per cent platform fee (checked 2026-11-07).", "priceSummary": "$18 / mo", "where": "hosted", "x402": { "level": "partial", "evidence": "Paid API listings are proxied at `https://router.fluxapay.xyz/api/\u003cslug\u003e` and answer HTTP 402 with an `accepts` array; the agent pays and retries with `X-Payment` (x402 v1) or `PAYMENT-SIGNATURE` (v2). Balance top-ups at `/llm/topup/initiate` answer 402 too. The pricing page says USDC from another wallet works over x402 on Base for paid APIs, top-ups and Token Plans, and the FluxA wallet CLI signs the standard `exact` EIP-3009 scheme on Base. LLM calls charge the Balance with a key or Agent VC rather than per call. Not exercised (https://agentmarket.fluxapay.xyz/marketplace/apis/skills.md; https://agentmarket.fluxapay.xyz/pricing; https://agentmarket.fluxapay.xyz/llms.txt, checked 2026-11-07).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-07" }, "docsUrl": "https://docs.fluxapay.xyz/", "llmsTxt": "https://agentmarket.fluxapay.xyz/llms.txt", "capabilities": [ "payments.x402", "payments.stablecoin", "payments.metering", "payments.card", "inference.router", "agent.tools" ], "tags": [ "hosted", "usage-based", "marketplace", "x402", "stablecoins", "usdc", "base", "llm-gateway", "llms-txt", "skills", "closed-source", "beta" ], "lastRelease": "2026-11-06", "graded": true, "anchor": { "graded": true, "score": 48.4, "grade": "D", "agentReady": false, "rank": 1127, "ranked": true, "rankOf": 1513, "categoryRank": 12, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 66, "maintenance": 64, "payments": 75, "reliability": 12, "schema": 53, "security": 51, "transparency": 32 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-11-07" }, "negative": 0, "verdict": "An agent can search a public, paged catalogue of APIs, skills and models and pay listed APIs per call over x402 in Base USDC, within budgets a person signs. Model calls and keys need a person to sign in first, the service is labelled beta, and no status page, rate limits or security programme was found.", "bestFor": "An agent that needs many third-party APIs and models from one balance or one Base USDC wallet, with a person setting a budget once.", "strengths": [ "`/api/discover` lists APIs, skills and models with no key, with `search`, `type`, `tags`, `limit` and `offset` and a Markdown format", "Paid APIs answer HTTP 402, and the pricing page says any Base wallet can pay over x402, so a per-call purchase needs no account", "One prepaid Balance pays for models through OpenAI Chat Completions and Anthropic Messages endpoints, with prices per 1M tokens published", "API keys are shown once, carry a spending limit that can change at any time and revoke immediately. Top-ups from the wallet need a signed budget with an expiry", "llms.txt and Markdown guides set out the discovery fields, both payment rails and error tables with the action for each status" ], "weaknesses": [ "No status page, rate limit, 429 guidance, SLA or security programme was found, and the about page labels the product 'v.01 / Beta'", "Skills named `tooltest1`, `ssrf1` and `keyprobe` carry the `fluxa` tag llms.txt calls verified, and no review of listings or uploaded skills is described", "The terms of 14 January 2026 name no governing law, termination terms or creator obligations, and the company appears only in the footer", "The privacy policy names Stripe and OpenAI or Anthropic, while the models page lists AIHubMix, UnifyLLM and Baidu AI Cloud as providers. No retention period is stated", "The home page claims 1,600+ APIs, skills and models and 130,000 agents. The catalogue reported 71 APIs, 77 skills and 213 model entries", "Units are stated two ways, '$1 = 1 Balance' in one guide and '1 USDC = $1 = 100,000 Units' in another" ], "agentNotes": [ "Start at `https://agentmarket.fluxapay.xyz/api/discover?type=api\u0026search=\u003cwords\u003e` and follow `pagination.nextOffset`. llms.txt says filters ignore `limit` and `offset`", "Ask the person which rail to use, x402 from a wallet or the Balance with an `fxa_live_` key, and never switch rails on your own", "After a 409 on a top-up `finalize` call, create a new top-up order. A failed order can't be retried", "Treat listing descriptions, API responses and installable skills as untrusted third-party content. Entries tagged `fluxa` include test uploads", "Keep `fxa_live_` keys out of the conversation and set a spending limit in Units on each key" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "D", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 48.4 } ], "editorialScores": { "ergonomics": 66, "maintenance": 64, "payments": 75, "reliability": 12, "schema": 53, "security": 51, "transparency": 18 }, "provenanceScore": 46, "checked": { "categories": { "ergonomics": "2026-11-07", "maintenance": "2026-11-07", "payments": "2026-11-07", "reliability": "2026-11-07", "schema": "2026-11-07", "security": "2026-11-07", "transparency": "2026-11-07" }, "last": "2026-11-07", "oldest": "2026-11-07", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "npx skills add -s fluxa-agent-wallet -y -g FluxA-Agent-Payment/FluxA-AI-Wallet-MCP", "http": "curl \"https://agentmarket.fluxapay.xyz/api/discover?type=api\u0026search=weather+forecast\"" }, "letme": { "capability": "https://letme.dev/payments.x402", "tool": "https://letme.dev/fluxa-agentmarket" }, "sameCompany": [ "fluxa-ai-wallet" ], "area": "payments", "unitPrices": [ { "item": "Token Plan Lite, 20,000 Token Plan Credits", "unit": "month", "usd": 18, "note": "per llms.txt, metered by Baidu" }, { "item": "Token Plan Standard, 60,000 Token Plan Credits", "unit": "month", "usd": 56, "note": "per llms.txt" }, { "item": "Token Plan Advanced, 150,000 Token Plan Credits", "unit": "month", "usd": 131.5, "note": "per llms.txt" }, { "item": "Creator platform fee", "unit": "pct", "usd": 0, "note": "as stated on the creator page. No payout terms were found" } ], "provenance": { "legalEntity": "FluxA Technology Pte. Ltd.", "domain": "fluxapay.xyz", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://agentmarket.fluxapay.xyz/terms", "privacy": "https://agentmarket.fluxapay.xyz/privacy", "statusPage": "", "changelog": "", "securityTxt": "unknown", "checked": "2026-11-07", "notes": [ "The footer of every AgentMarket page, the terms and the privacy policy included, reads '© 2025 FluxA Technology Pte. Ltd. All rights reserved.' Neither the terms nor the privacy policy (both 14 January 2026) names the company in its body, or gives an address, registration number, country or governing law.", "A web search result title gives 'fluxa technology pte ltd 202555700C' on companieshouse.sg, a third-party aggregator. Its robots.txt could not be read, so the page was not opened and the number is unconfirmed.", "The discovery gateway is on agentmarket.fluxapay.xyz and the proxy and LLM endpoints on router.fluxapay.xyz. The wallet CLI also calls agentid, agentwallet, walletapi and wallet subdomains of fluxapay.xyz.", "agentmarket.fluxapay.xyz/robots.txt allows /, /marketplace/apis/, /api/discover and /api/llm/skills.md and disallows the rest of /api/ and /console/, with one sitemap. Nothing else under those paths was fetched.", "No status page or changelog is linked from the site or llms.txt. agentmarket.fluxapay.xyz/.well-known/security.txt could not be read. robots.txt for docs.fluxapay.xyz, fluxapay.xyz and fluxapay.substack.com could not be read, so the documentation site, the company site and the blog were not opened.", "firstReleased is 2026-01-14, the date of the terms and privacy policy, the earliest dated AgentMarket page found. `@fluxa-pay/fluxa-connect-mcp`, which connects MCP clients to FluxA's x402 proxy, was first published on 18 November 2025. lastRelease is 2026-11-06, `@fluxa-pay/fluxa-wallet` 0.6.0, the CLI that carries the market commands.", "RDAP for fluxapay.xyz and the Wayback Machine were not read." ], "score": 46 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/fluxa-agentmarket.json", "live": { "slug": "fluxa-agentmarket", "probe": { "target": "https://router.fluxapay.xyz", "method": "get", "lastAt": "2026-11-08T14:47:50.694179528Z", "lastOk": true, "lastStatus": 404, "lastMs": 176, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 183, "p95ms24h": 248, "samples24h": 90, "samples30d": 90, "days": [ { "date": "2026-11-08", "probes": 90, "ok": 90 } ], "since": "2026-11-08T00:00:00Z" }, "pages": [ { "url": "https://agentmarket.fluxapay.xyz/privacy", "kind": "privacy", "status": 304, "checkedAt": "2026-11-08T14:50:00.242020458Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c26788b1c334" }, { "url": "https://agentmarket.fluxapay.xyz/terms", "kind": "terms", "status": 304, "checkedAt": "2026-11-08T14:50:02.39776054Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "ddffb5a7f4f6" } ], "updatedAt": "2026-11-08T14:50:02.39776054Z" }, "streak": { "days": 0, "from": "2026-11-08", "sinceWatching": true, "best": 0 } }, "edges": [ { "by": 48, "category": "transparency", "leads": "crossmint", "name": "Transparency \u0026 trust", "reasons": { "a": "The SDKs are Apache-2.0 and the API is closed under published terms (18). Privacy policy updated 26 June 2026 names six Crossmint entities, states DPAs with each provider, keeps Persona biometric data no more than three years and otherwise retains data \"as long as necessary\", and uses SCCs and the EU-US Data Privacy Framework. It says personal data isn't used to train general-purpose models (20). The changelog dates deprecations, such as Checkout V2 ending on 30 October 2025, and SDK changesets give migration steps for removed chains (15). Subprocessors are listed on the Trust page, which we didn't open, and transfers outside the EEA are disclosed (12).", "b": "The editorial half. The marketplace, proxy and gateway are closed. The terms (effective 14 January 2026) cover pricing, refunds and acceptable use but name no governing law, termination terms, liability for third-party listings or creator obligations, and the company appears only in the footer. The CLI is Apache-2.0 (8 of 30). The privacy policy (14 January 2026) lists account, payment and usage data and says identity isn't shared with model providers. It says nothing on prompts, API payloads, retention, training or data location (6 of 30). No deprecation policy or dated notice was found, and the terms may change 'at any time' (0 of 20). The policy names Stripe and 'OpenAI/Anthropic API' as a non-exhaustive list, while the models page lists AIHubMix, UnifyLLM and Baidu AI Cloud as providers. No locations are given (4 of 20). Total 18. The provenance half is computed from the provenance block." }, "scores": { "a": 80, "b": 32 } }, { "by": 41, "category": "reliability", "leads": "crossmint", "name": "Reliability", "reasons": { "a": "status.crossmint.com redirects to a Datadog-hosted status page (20, per the 1 October check). On 1 November the Datadog host answered robots.txt with 403 AccessDenied, so it was treated as blocked and not read; on 1 October it rendered only in JavaScript with no readable history. No incident history could be read, a limit of our reading and not a finding against Crossmint (5). Rate limits published, 120 writes and 360 reads a minute per project on self-serve plans, with higher limits for token and minting endpoints (15). The limits page says a 429 comes back and to wait briefly, with no Retry-After or backoff guidance, but the wallets OpenAPI documents an `x-idempotency-key` header on wallet, transaction, transfer and signature creation (8 of 15). Enterprise gets \"premium SLAs\" through sales, and no SLA is published (0). Wallets are generally available, but Agent Checkouts runs in production only with no staging, and the wallets spec still routes balances and transfer history through `/unstable` paths (5 of 10).", "b": "Graded as a hosted service, the discovery gateway on agentmarket.fluxapay.xyz and the proxy and LLM endpoints on router.fluxapay.xyz, from the vendor's pages. Nothing was called. No status page is linked from the site, the footer, llms.txt or the guides, and no status host was checked (0). With no readable incident history the record takes the default (5). Listing pages show a health count with no history, such as '10/10 endpoints healthy' on Minifetch. No rate limit with numbers was found in llms.txt, the guides or the CLI help. The only cap is a per-key spending limit (0). The Balance guide says to retry a 503 shortly without minting a new credential, replays of a settled top-up `finalize` call are idempotent, a failed order answers 409, and the card flow says 'a retry is a new order'. No 429 or Retry-After guidance was found. Termix earned 8 for the same kind of guidance with idempotency keys on writes (7 of 15). No SLA was found, and the terms supply the service 'as is' (0). The about page labels the product 'v.01 / Beta' (0). Total 12." }, "scores": { "a": 53, "b": 12 } }, { "by": 25, "category": "payments", "leads": "fluxa-agentmarket", "name": "Payments \u0026 pricing", "reasons": { "a": "Payment platforms and wallets take the highest step that applies on the 40-point protocol line. 40 for x402, MPP or L402 on all their own endpoints, 30 on part of their own API, 25 when their merchants can accept one, 20 for running a facilitator, 15 for paying as a buyer, 0 for only a protocol of their own. Crossmint's own API isn't paid over x402 or MPP. Crossmint's n8n node (n8n-nodes-crossmint 1.1.0, 12 November 2025) puts an x402 paywall in front of a workflow and settles to an address the seller sets through the Corbits facilitator, so the merchant step, though only for n8n (25 of 40). Agent Wallets also pay x402 and MPP endpoints for the buyer. Wallet overage at $0.02 per monthly active wallet and tokenisation at $0.01 an action are public, while onramp, offramp, checkout, orchestration, Agent Cards and Agent Checkouts have no published price (10). 1,000 free monthly active wallets with up to 2,000 transactions, and free staging on testnets, but the pricing page doesn't say whether a card is needed (15). A person signs up in the console to get keys (0).", "b": "Payment platforms take the highest step that applies on the 40-point protocol line (40 on all their own endpoints, 30 on part of their own API, 25 when their merchants can accept one, 20 for a facilitator, 15 for paying as a buyer, 0 for only a protocol of their own). AgentMarket's proxied API endpoints and Balance top-ups answer x402 (v1 body or v2 `PAYMENT-REQUIRED` header), the pricing page says USDC from another wallet works over x402 on Base, and the FluxA CLI signs the standard `exact` EIP-3009 scheme. Model calls are charged to the Balance with a key or Agent VC. Nothing was paid, so this rests on the vendor's pages (30 of 40). Per-call price ranges are public in the catalogue, per-endpoint prices on listing pages, model prices per 1M tokens, Balance bundles and Token Plan prices, all without a login (20). Discovery and price reads are free with no account and some listed endpoints are priced at $0, but no free credit or trial was found. The wallet's TokenGo guide calls a $1 first top-up a trial. Termix earned 20 for free reads, and here a judgement call gives half (10 of 20). An agent holding Base USDC can pay a listed API per call with no account, per the pricing page and the 402 flow. Model calls, the Balance and keys need an account a person creates by signing in ('an agent cannot create either account'), and the FluxA wallet path needs a person to approve registration and sign a mandate (15 of 20). Total 75." }, "scores": { "a": 50, "b": 75 } }, { "by": 22, "category": "security", "leads": "crossmint", "name": "Security \u0026 auth", "reasons": { "a": "Separate server-side and client-side API keys with named scopes such as `wallets:transactions.create`, and client keys can require a JWT from your own auth provider. Key rotation wasn't checked (25). Agent Wallets add the agent as a delegated signer with onchain spend caps, allowed counterparties and time windows, transactions carry an approvals step, and Agent Checkouts stops at a hard cap set per run (18). Agent Checkouts browses any merchant URL and we found no prompt-injection guidance for it (7). Transaction lists and webhooks give per-transaction visibility, and we found no API audit log (8). security.txt points to a disclosure policy with a 5 working day reply and 10 working day triage commitment, cash rewards only by exception, and a footer that cites SOC 2 and a Trust Centre. The same footer lists a Spanish CNMV crypto-asset service provider authorisation, FinCEN MSB registration and FINTRAC registration (15).", "b": "`fxa_live_` keys are created by a person at /keys and shown once, each with a spending limit in Units that changes within seconds, and are revoked immediately over `DELETE /llm/keys/\u003cid\u003e`, with written rotation steps. Key management needs a 5-minute Agent VC, never a key, and creation can be set to need a person's approval. No permission scopes beyond the spending limit were found, and no secret in a URL (24 of 30). Wallet payments need a mandate a person signs with a USDC budget and an expiry, and the Balance guide says to confirm every top-up with the user. The APIs guide tells agents not to ask before paying within a signed mandate, and no read-only key was found (14 of 20). The marketplace returns content from third-party APIs and installs third-party skills. Results carry a `fluxa` or `bazaar` source tag, but entries named `ssrf1`, `keyprobe` and `tooltest1` are tagged `fluxa`, no review of uploads is described, and no guidance on treating responses or skills as untrusted was found (2 of 15). The balance endpoint returns available, spent, burn per day and owed, the ledger lists spend and purchases per merchant, and the wallet skill reads an `X-LLM-Cost` header on model calls (11 of 15). No disclosure policy, bug bounty, certification or advisory was found. security.txt couldn't be read and is scored absent, and the privacy policy says only 'industry-standard security measures' (0 of 20). Total 51." }, "scores": { "a": 73, "b": 51 } }, { "by": 21, "category": "maintenance", "leads": "crossmint", "name": "Maintenance \u0026 community", "reasons": { "a": "Release packages commit on 29 October 2026 shipped @crossmint/wallets-sdk 1.21.0 and @crossmint/client-sdk-react-ui 4.13.1 (30). 18 release commits in the 90 days from 3 August, 7 August to 29 October (20). Per-package changesets are detailed and current, but the docs changelog hasn't had an entry since 11 February 2026, and we didn't read the GitHub issue queue (12 of 25). Current official SDKs (15). CI runs build and tests, plus smoke, end-to-end regression, CodeQL and security-scan workflows. Chain removals stop old code compiling, 1.18.0's with deprecation first and migration notes, 1.20.1's (Abstract, a patch release) with neither (8).", "b": "Read for a closed service. No changelog or dated release notes were found. The models page says the catalogue was 'last updated November 5, 2026', and `@fluxa-pay/fluxa-wallet` 0.6.0, the CLI that carries the `market` commands llms.txt relies on, was published on 6 November 2026 (30). The CLI had eight releases between 10 August and 6 November 2026, 0.4.12 to 0.6.0 (20). Support is a Discord server and support.fluxapay@fluxapay.xyz, neither tested, and GitHub issues couldn't be read because the GitHub API refused us (3 of 15). No AgentMarket SDK. The TypeScript CLI is the official client and the LLM endpoints take OpenAI and Anthropic SDKs. Not an MCP server, so the registry line reads as SDKs (7 of 15). The CLI repository has 7 test files and no CI workflow, and the npm package declares no repository. `@fluxa-pay/fluxa-connect-mcp` points to a repository that isn't public (4 of 10). Total 64." }, "scores": { "a": 85, "b": 64 } }, { "by": 18, "category": "schema", "leads": "crossmint", "name": "Schema \u0026 documentation", "reasons": { "a": "A Crossmint Wallets API OpenAPI 3.0 file with 39 paths sits in the public SDK repo, but we found none for payments, onramp, Agent Cards or Agent Checkouts (15 of 25). llms.txt with about 450 entries, an llms-full.txt, and every page served as Markdown by appending `.md` (10). Operation descriptions state the purpose and the API scope each call needs, with little on when not to use them (12). Typed DTOs with required fields, though wallets are addressed by formatted locator strings such as `email:\u003cemail\u003e:\u003cchainType\u003e` (11). Payment and onramp error-code pages, and the wallets spec documents 400, 404, 409 and 422 responses, with code samples in the quickstarts (11). Date-versioned paths (`/2025-06-09/`) and a docs changelog, but its newest entry is 11 February 2026, so recent API changes are only in the SDK changelogs (12).", "b": "No OpenAPI file was found. llms.txt names none and the documentation site, docs.fluxapay.xyz, couldn't be read because its robots.txt couldn't be. The discovery response has documented fields (`apiServers`, `skills`, `models`, `pagination`), a GET on each listing's `urls.access` returns its endpoints and prices as JSON per the skill-creation guide, and the LLM endpoints follow the OpenAI and Anthropic formats (8 of 25). llms.txt and Markdown guides (getting-started.md, currency.md, create-skill.md, the APIs and Balance guides) written for agents (10). The guides say when to use `search` against `query`, that the external catalogues are a last resort and which rail fits which job. Listing descriptions come from creators and 17 of the first 50 skills have none (12 of 20). `type` is an enum that answers 400 to unknown values, `limit` is bounded at 1,000, and the chat and messages bodies follow published formats. Listing endpoints are described by each creator (9 of 15). curl examples for discovery, models and payment, a status table in the Balance guide with the action for 401, 503, 404, 402 and 409, and seven named mandate errors in the APIs guide (11 of 15). Paths carry `/llm/v1/` and llms.txt names minimum CLI versions, but no changelog was found (3 of 15). Total 53." }, "scores": { "a": 71, "b": 53 } } ], "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Crossmint", "b": "FluxA Technology Pte. Ltd.", "name": "Vendor" }, { "a": "https://www.crossmint.com/api", "b": "https://router.fluxapay.xyz", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Pay per use", "name": "Pricing" }, { "a": "payer tooling only", "b": "payer tooling only", "name": "x402" }, { "a": "Apache-2.0", "b": "Proprietary hosted service under the AgentMarket Terms of Service (effective 14 January 2026). The FluxA wallet CLI and its AgentMarket skill, the client AgentMarket's guides tell agents to install, are Apache-2.0 on GitHub", "name": "Licence" }, { "a": "1", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-29", "b": "2026-11-06", "name": "Last release" }, { "a": "2026-07-01", "b": "not read yet", "name": "Terms last updated" }, { "a": "2026-09-21", "b": "not read yet", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not read yet", "name": "Customer content may train models" }, { "a": "yes", "b": "not read yet", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "not read yet", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "not read yet", "name": "Arbitration or class-action waiver" }, { "a": "52 stars, 40k npm/wk", "b": "none", "name": "Popularity" }, { "a": "3.5/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Crossmint API + Docs MCP scores 65.1 (B) on agent readiness against FluxA AgentMarket's 48.4 (D), and leads in 6 of 7 scored categories. FluxA AgentMarket leads on payments \u0026 pricing.", "question": "Which is better for AI agents, Crossmint API + Docs MCP or FluxA AgentMarket?" }, { "answer": "Crossmint API + Docs MCP needs an API key. FluxA AgentMarket takes an API key or an OAuth sign-in.", "question": "Do Crossmint API + Docs MCP and FluxA AgentMarket need an API key?" }, { "answer": "Yes. Crossmint API + Docs MCP has a hosted endpoint at https://www.crossmint.com/api and FluxA AgentMarket at https://router.fluxapay.xyz.", "question": "Can an agent call Crossmint API + Docs MCP and FluxA AgentMarket without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 53 against 12", "Schema \u0026 documentation, 71 against 53", "Agent ergonomics, 77 against 66", "Security \u0026 auth, 73 against 51", "Maintenance \u0026 community, 85 against 64", "Transparency \u0026 trust, 80 against 32" ], "also": null, "goodFor": "Products that let agents spend, especially where a user wants a capped card or a capped stablecoin wallet for an agent, or an agent that buys from ordinary merchant sites.", "slug": "crossmint", "watchFor": "No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts" }, { "aheadOn": [ "Payments \u0026 pricing, 75 against 50" ], "also": [ "No incidents deducted, where Crossmint API + Docs MCP loses 3 points for them" ], "goodFor": "An agent that needs many third-party APIs and models from one balance or one Base USDC wallet, with a person setting a budget once.", "slug": "fluxa-agentmarket", "watchFor": "No status page, rate limit, 429 guidance, SLA or security programme was found, and the about page labels the product 'v.01 / Beta'" } ], "history": { "crossmint": [ { "causes": [ "evidence", "event" ], "date": "2026-11-01", "delta": -2, "from": 67.1, "fromGrade": "B", "to": 65.1, "toGrade": "B" }, { "causes": [ "correction" ], "date": "2026-10-28", "delta": -0.1, "from": 67.2, "fromGrade": "B", "to": 67.1, "toGrade": "B" }, { "causes": [ "method" ], "date": "2026-10-27", "delta": 0.1, "from": 67.1, "fromGrade": "B", "to": 67.2, "toGrade": "B" } ], "fluxa-agentmarket": null }, "job": { "capability": "payments.card", "name": "Card payments" }, "others": [ { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-lago.json", "title": "FluxA AgentMarket vs Lago", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-lago" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-metronome.json", "title": "FluxA AgentMarket vs Metronome", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-metronome" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-orb.json", "title": "FluxA AgentMarket vs Orb", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-orb" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-paid.json", "title": "FluxA AgentMarket vs Paid", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-paid" }, { "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-fluxa-agentmarket.json", "title": "Adyen MCP server vs FluxA AgentMarket", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-fluxa-agentmarket" }, { "json": "https://www.anchorterminal.com/compare/agentcard-vs-crossmint.json", "title": "Agentcard vs Crossmint API + Docs MCP", "url": "https://www.anchorterminal.com/compare/agentcard-vs-crossmint" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-lago.json", "title": "Crossmint API + Docs MCP vs Lago", "url": "https://www.anchorterminal.com/compare/crossmint-vs-lago" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined.json", "title": "Crossmint API + Docs MCP vs Nevermined API + MCP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-orb.json", "title": "Crossmint API + Docs MCP vs Orb", "url": "https://www.anchorterminal.com/compare/crossmint-vs-orb" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-paid.json", "title": "Crossmint API + Docs MCP vs Paid", "url": "https://www.anchorterminal.com/compare/crossmint-vs-paid" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-payman.json", "title": "Crossmint API + Docs MCP vs Payman Genie MCP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-payman" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-skyfire.json", "title": "Crossmint API + Docs MCP vs Skyfire API + MCP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-skyfire" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-stripe-mcp.json", "title": "Crossmint API + Docs MCP vs Stripe API + MCP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-stripe-mcp" }, { "json": "https://www.anchorterminal.com/compare/atxp-vs-crossmint.json", "title": "ATXP vs Crossmint API + Docs MCP", "url": "https://www.anchorterminal.com/compare/atxp-vs-crossmint" }, { "json": "https://www.anchorterminal.com/compare/atxp-vs-fluxa-agentmarket.json", "title": "ATXP vs FluxA AgentMarket", "url": "https://www.anchorterminal.com/compare/atxp-vs-fluxa-agentmarket" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-tempo.json", "title": "Crossmint API + Docs MCP vs Tempo", "url": "https://www.anchorterminal.com/compare/crossmint-vs-tempo" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-termix.json", "title": "Crossmint API + Docs MCP vs TermiX AACP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-termix" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-skyfire.json", "title": "FluxA AgentMarket vs Skyfire API + MCP", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-skyfire" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-tempo.json", "title": "FluxA AgentMarket vs Tempo", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-tempo" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-termix.json", "title": "FluxA AgentMarket vs TermiX AACP", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-termix" }, { "json": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-crossmint.json", "title": "Circle Gateway Nanopayments vs Crossmint API + Docs MCP", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-crossmint" }, { "json": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-agentmarket.json", "title": "Circle Gateway Nanopayments vs FluxA AgentMarket", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-agentmarket" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-fluxa-ai-wallet.json", "title": "FluxA AgentMarket vs FluxA AI Wallet", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-fluxa-ai-wallet" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-nevermined.json", "title": "FluxA AgentMarket vs Nevermined API + MCP", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-nevermined" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-payman.json", "title": "FluxA AgentMarket vs Payman Genie MCP", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-payman" }, { "json": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-stripe-mcp.json", "title": "FluxA AgentMarket vs Stripe API + MCP", "url": "https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-stripe-mcp" }, { "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.json", "title": "Adyen MCP server vs Crossmint API + Docs MCP", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-paypal-mcp-server.json", "title": "Crossmint API + Docs MCP vs PayPal MCP server", "url": "https://www.anchorterminal.com/compare/crossmint-vs-paypal-mcp-server" } ], "panel": null, "scores": [ { "by": 41, "crossmint": 53, "edge": "crossmint", "fluxa-agentmarket": 12, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 18, "crossmint": 71, "edge": "crossmint", "fluxa-agentmarket": 53, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 11, "crossmint": 77, "edge": "crossmint", "fluxa-agentmarket": 66, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 22, "crossmint": 73, "edge": "crossmint", "fluxa-agentmarket": 51, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 25, "crossmint": 50, "edge": "fluxa-agentmarket", "fluxa-agentmarket": 75, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 21, "crossmint": 85, "edge": "crossmint", "fluxa-agentmarket": 64, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 48, "crossmint": 80, "edge": "crossmint", "fluxa-agentmarket": 32, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Crossmint API + Docs MCP scores 65.1 (B) on agent readiness against FluxA AgentMarket's 48.4 (D), and leads in 6 of 7 scored categories. FluxA AgentMarket leads on payments \u0026 pricing. Both do card payments.", "tasks": null, "tutorials": [], "verdicts": { "crossmint": "Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain, and wallet writes take a documented idempotency key. Onramp, offramp, checkout, Agent Cards and Agent Checkouts have no published price, and the status history couldn't be read.", "fluxa-agentmarket": "An agent can search a public, paged catalogue of APIs, skills and models and pay listed APIs per call over x402 in Base USDC, within budgets a person signs. Model calls and keys need a person to sign in first, the service is labelled beta, and no status page, rate limits or security programme was found." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/crossmint-vs-fluxa-agentmarket", "json": "https://www.anchorterminal.com/compare/crossmint-vs-fluxa-agentmarket.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/crossmint-vs-fluxa-agentmarket.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/crossmint-vs-fluxa-agentmarket.min.md" }, "markdown": "Crossmint API + Docs MCP scores 65.1 (B) on agent readiness against FluxA AgentMarket's 48.4 (D), and leads in 6 of 7 scored categories. FluxA AgentMarket leads on payments \u0026 pricing. Both do card payments.\n\n- Crossmint API + Docs MCP: grade B, 65.1/100, rank #438 of 1513. Markdown https://www.anchorterminal.com/tools/crossmint.md · JSON https://www.anchorterminal.com/api/v1/tools/crossmint.json\n- FluxA AgentMarket: grade D, 48.4/100, rank #1127 of 1513. Markdown https://www.anchorterminal.com/tools/fluxa-agentmarket.md · JSON https://www.anchorterminal.com/api/v1/tools/fluxa-agentmarket.json\n- Best payment and monetisation platforms for AI agents: https://www.anchorterminal.com/best/payment-platforms/index.md\n- All 104 platforms comparisons: https://www.anchorterminal.com/compare/payment-platforms/index.md\n\n## Which one, for what\n\n### Crossmint API + Docs MCP (B)\n\nGood for: Products that let agents spend, especially where a user wants a capped card or a capped stablecoin wallet for an agent, or an agent that buys from ordinary merchant sites.\n\nAhead on:\n- Reliability, 53 against 12\n- Schema \u0026 documentation, 71 against 53\n- Agent ergonomics, 77 against 66\n- Security \u0026 auth, 73 against 51\n- Maintenance \u0026 community, 85 against 64\n- Transparency \u0026 trust, 80 against 32\n\nWatch for: No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts\n\n### FluxA AgentMarket (D)\n\nGood for: An agent that needs many third-party APIs and models from one balance or one Base USDC wallet, with a person setting a budget once.\n\nAhead on:\n- Payments \u0026 pricing, 75 against 50\n\nAlso in its favour:\n- No incidents deducted, where Crossmint API + Docs MCP loses 3 points for them\n\nWatch for: No status page, rate limit, 429 guidance, SLA or security programme was found, and the about page labels the product 'v.01 / Beta'\n\n\n## Why the edge\n\n### Transparency \u0026 trust: Crossmint API + Docs MCP +48\n\n- Crossmint API + Docs MCP (80): The SDKs are Apache-2.0 and the API is closed under published terms (18). Privacy policy updated 26 June 2026 names six Crossmint entities, states DPAs with each provider, keeps Persona biometric data no more than three years and otherwise retains data \"as long as necessary\", and uses SCCs and the EU-US Data Privacy Framework. It says personal data isn't used to train general-purpose models (20). The changelog dates deprecations, such as Checkout V2 ending on 30 October 2025, and SDK changesets give migration steps for removed chains (15). Subprocessors are listed on the Trust page, which we didn't open, and transfers outside the EEA are disclosed (12).\n- FluxA AgentMarket (32): The editorial half. The marketplace, proxy and gateway are closed. The terms (effective 14 January 2026) cover pricing, refunds and acceptable use but name no governing law, termination terms, liability for third-party listings or creator obligations, and the company appears only in the footer. The CLI is Apache-2.0 (8 of 30). The privacy policy (14 January 2026) lists account, payment and usage data and says identity isn't shared with model providers. It says nothing on prompts, API payloads, retention, training or data location (6 of 30). No deprecation policy or dated notice was found, and the terms may change 'at any time' (0 of 20). The policy names Stripe and 'OpenAI/Anthropic API' as a non-exhaustive list, while the models page lists AIHubMix, UnifyLLM and Baidu AI Cloud as providers. No locations are given (4 of 20). Total 18. The provenance half is computed from the provenance block.\n\n### Reliability: Crossmint API + Docs MCP +41\n\n- Crossmint API + Docs MCP (53): status.crossmint.com redirects to a Datadog-hosted status page (20, per the 1 October check). On 1 November the Datadog host answered robots.txt with 403 AccessDenied, so it was treated as blocked and not read; on 1 October it rendered only in JavaScript with no readable history. No incident history could be read, a limit of our reading and not a finding against Crossmint (5). Rate limits published, 120 writes and 360 reads a minute per project on self-serve plans, with higher limits for token and minting endpoints (15). The limits page says a 429 comes back and to wait briefly, with no Retry-After or backoff guidance, but the wallets OpenAPI documents an `x-idempotency-key` header on wallet, transaction, transfer and signature creation (8 of 15). Enterprise gets \"premium SLAs\" through sales, and no SLA is published (0). Wallets are generally available, but Agent Checkouts runs in production only with no staging, and the wallets spec still routes balances and transfer history through `/unstable` paths (5 of 10).\n- FluxA AgentMarket (12): Graded as a hosted service, the discovery gateway on agentmarket.fluxapay.xyz and the proxy and LLM endpoints on router.fluxapay.xyz, from the vendor's pages. Nothing was called. No status page is linked from the site, the footer, llms.txt or the guides, and no status host was checked (0). With no readable incident history the record takes the default (5). Listing pages show a health count with no history, such as '10/10 endpoints healthy' on Minifetch. No rate limit with numbers was found in llms.txt, the guides or the CLI help. The only cap is a per-key spending limit (0). The Balance guide says to retry a 503 shortly without minting a new credential, replays of a settled top-up `finalize` call are idempotent, a failed order answers 409, and the card flow says 'a retry is a new order'. No 429 or Retry-After guidance was found. Termix earned 8 for the same kind of guidance with idempotency keys on writes (7 of 15). No SLA was found, and the terms supply the service 'as is' (0). The about page labels the product 'v.01 / Beta' (0). Total 12.\n\n### Payments \u0026 pricing: FluxA AgentMarket +25\n\n- Crossmint API + Docs MCP (50): Payment platforms and wallets take the highest step that applies on the 40-point protocol line. 40 for x402, MPP or L402 on all their own endpoints, 30 on part of their own API, 25 when their merchants can accept one, 20 for running a facilitator, 15 for paying as a buyer, 0 for only a protocol of their own. Crossmint's own API isn't paid over x402 or MPP. Crossmint's n8n node (n8n-nodes-crossmint 1.1.0, 12 November 2025) puts an x402 paywall in front of a workflow and settles to an address the seller sets through the Corbits facilitator, so the merchant step, though only for n8n (25 of 40). Agent Wallets also pay x402 and MPP endpoints for the buyer. Wallet overage at $0.02 per monthly active wallet and tokenisation at $0.01 an action are public, while onramp, offramp, checkout, orchestration, Agent Cards and Agent Checkouts have no published price (10). 1,000 free monthly active wallets with up to 2,000 transactions, and free staging on testnets, but the pricing page doesn't say whether a card is needed (15). A person signs up in the console to get keys (0).\n- FluxA AgentMarket (75): Payment platforms take the highest step that applies on the 40-point protocol line (40 on all their own endpoints, 30 on part of their own API, 25 when their merchants can accept one, 20 for a facilitator, 15 for paying as a buyer, 0 for only a protocol of their own). AgentMarket's proxied API endpoints and Balance top-ups answer x402 (v1 body or v2 `PAYMENT-REQUIRED` header), the pricing page says USDC from another wallet works over x402 on Base, and the FluxA CLI signs the standard `exact` EIP-3009 scheme. Model calls are charged to the Balance with a key or Agent VC. Nothing was paid, so this rests on the vendor's pages (30 of 40). Per-call price ranges are public in the catalogue, per-endpoint prices on listing pages, model prices per 1M tokens, Balance bundles and Token Plan prices, all without a login (20). Discovery and price reads are free with no account and some listed endpoints are priced at $0, but no free credit or trial was found. The wallet's TokenGo guide calls a $1 first top-up a trial. Termix earned 20 for free reads, and here a judgement call gives half (10 of 20). An agent holding Base USDC can pay a listed API per call with no account, per the pricing page and the 402 flow. Model calls, the Balance and keys need an account a person creates by signing in ('an agent cannot create either account'), and the FluxA wallet path needs a person to approve registration and sign a mandate (15 of 20). Total 75.\n\n### Security \u0026 auth: Crossmint API + Docs MCP +22\n\n- Crossmint API + Docs MCP (73): Separate server-side and client-side API keys with named scopes such as `wallets:transactions.create`, and client keys can require a JWT from your own auth provider. Key rotation wasn't checked (25). Agent Wallets add the agent as a delegated signer with onchain spend caps, allowed counterparties and time windows, transactions carry an approvals step, and Agent Checkouts stops at a hard cap set per run (18). Agent Checkouts browses any merchant URL and we found no prompt-injection guidance for it (7). Transaction lists and webhooks give per-transaction visibility, and we found no API audit log (8). security.txt points to a disclosure policy with a 5 working day reply and 10 working day triage commitment, cash rewards only by exception, and a footer that cites SOC 2 and a Trust Centre. The same footer lists a Spanish CNMV crypto-asset service provider authorisation, FinCEN MSB registration and FINTRAC registration (15).\n- FluxA AgentMarket (51): `fxa_live_` keys are created by a person at /keys and shown once, each with a spending limit in Units that changes within seconds, and are revoked immediately over `DELETE /llm/keys/\u003cid\u003e`, with written rotation steps. Key management needs a 5-minute Agent VC, never a key, and creation can be set to need a person's approval. No permission scopes beyond the spending limit were found, and no secret in a URL (24 of 30). Wallet payments need a mandate a person signs with a USDC budget and an expiry, and the Balance guide says to confirm every top-up with the user. The APIs guide tells agents not to ask before paying within a signed mandate, and no read-only key was found (14 of 20). The marketplace returns content from third-party APIs and installs third-party skills. Results carry a `fluxa` or `bazaar` source tag, but entries named `ssrf1`, `keyprobe` and `tooltest1` are tagged `fluxa`, no review of uploads is described, and no guidance on treating responses or skills as untrusted was found (2 of 15). The balance endpoint returns available, spent, burn per day and owed, the ledger lists spend and purchases per merchant, and the wallet skill reads an `X-LLM-Cost` header on model calls (11 of 15). No disclosure policy, bug bounty, certification or advisory was found. security.txt couldn't be read and is scored absent, and the privacy policy says only 'industry-standard security measures' (0 of 20). Total 51.\n\n### Maintenance \u0026 community: Crossmint API + Docs MCP +21\n\n- Crossmint API + Docs MCP (85): Release packages commit on 29 October 2026 shipped @crossmint/wallets-sdk 1.21.0 and @crossmint/client-sdk-react-ui 4.13.1 (30). 18 release commits in the 90 days from 3 August, 7 August to 29 October (20). Per-package changesets are detailed and current, but the docs changelog hasn't had an entry since 11 February 2026, and we didn't read the GitHub issue queue (12 of 25). Current official SDKs (15). CI runs build and tests, plus smoke, end-to-end regression, CodeQL and security-scan workflows. Chain removals stop old code compiling, 1.18.0's with deprecation first and migration notes, 1.20.1's (Abstract, a patch release) with neither (8).\n- FluxA AgentMarket (64): Read for a closed service. No changelog or dated release notes were found. The models page says the catalogue was 'last updated November 5, 2026', and `@fluxa-pay/fluxa-wallet` 0.6.0, the CLI that carries the `market` commands llms.txt relies on, was published on 6 November 2026 (30). The CLI had eight releases between 10 August and 6 November 2026, 0.4.12 to 0.6.0 (20). Support is a Discord server and support.fluxapay@fluxapay.xyz, neither tested, and GitHub issues couldn't be read because the GitHub API refused us (3 of 15). No AgentMarket SDK. The TypeScript CLI is the official client and the LLM endpoints take OpenAI and Anthropic SDKs. Not an MCP server, so the registry line reads as SDKs (7 of 15). The CLI repository has 7 test files and no CI workflow, and the npm package declares no repository. `@fluxa-pay/fluxa-connect-mcp` points to a repository that isn't public (4 of 10). Total 64.\n\n### Schema \u0026 documentation: Crossmint API + Docs MCP +18\n\n- Crossmint API + Docs MCP (71): A Crossmint Wallets API OpenAPI 3.0 file with 39 paths sits in the public SDK repo, but we found none for payments, onramp, Agent Cards or Agent Checkouts (15 of 25). llms.txt with about 450 entries, an llms-full.txt, and every page served as Markdown by appending `.md` (10). Operation descriptions state the purpose and the API scope each call needs, with little on when not to use them (12). Typed DTOs with required fields, though wallets are addressed by formatted locator strings such as `email:\u003cemail\u003e:\u003cchainType\u003e` (11). Payment and onramp error-code pages, and the wallets spec documents 400, 404, 409 and 422 responses, with code samples in the quickstarts (11). Date-versioned paths (`/2025-06-09/`) and a docs changelog, but its newest entry is 11 February 2026, so recent API changes are only in the SDK changelogs (12).\n- FluxA AgentMarket (53): No OpenAPI file was found. llms.txt names none and the documentation site, docs.fluxapay.xyz, couldn't be read because its robots.txt couldn't be. The discovery response has documented fields (`apiServers`, `skills`, `models`, `pagination`), a GET on each listing's `urls.access` returns its endpoints and prices as JSON per the skill-creation guide, and the LLM endpoints follow the OpenAI and Anthropic formats (8 of 25). llms.txt and Markdown guides (getting-started.md, currency.md, create-skill.md, the APIs and Balance guides) written for agents (10). The guides say when to use `search` against `query`, that the external catalogues are a last resort and which rail fits which job. Listing descriptions come from creators and 17 of the first 50 skills have none (12 of 20). `type` is an enum that answers 400 to unknown values, `limit` is bounded at 1,000, and the chat and messages bodies follow published formats. Listing endpoints are described by each creator (9 of 15). curl examples for discovery, models and payment, a status table in the Balance guide with the action for 401, 503, 404, 402 and 409, and seven named mandate errors in the APIs guide (11 of 15). Paths carry `/llm/v1/` and llms.txt names minimum CLI versions, but no changelog was found (3 of 15). Total 53.\n\n## Score by category\n\n| Category | Weight | Crossmint API + Docs MCP | FluxA AgentMarket | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 53 | 12 | Crossmint API + Docs MCP +41 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 71 | 53 | Crossmint API + Docs MCP +18 |\n| Agent ergonomics | 13% (16.2 this run) | 77 | 66 | Crossmint API + Docs MCP +11 |\n| Security \u0026 auth | 14% (17.5 this run) | 73 | 51 | Crossmint API + Docs MCP +22 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 50 | 75 | FluxA AgentMarket +25 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 85 | 64 | Crossmint API + Docs MCP +21 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 80 | 32 | Crossmint API + Docs MCP +48 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **65.1 · B** | **48.4 · D** | |\n\n## Facts side by side\n\n| Fact | Crossmint API + Docs MCP | FluxA AgentMarket |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Crossmint | FluxA Technology Pte. Ltd. |\n| Hosted endpoint | `https://www.crossmint.com/api` | `https://router.fluxapay.xyz` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Freemium | Pay per use |\n| x402 | payer tooling only | payer tooling only |\n| Licence | Apache-2.0 | Proprietary hosted service under the AgentMarket Terms of Service (effective 14 January 2026). The FluxA wallet CLI and its AgentMarket skill, the client AgentMarket's guides tell agents to install, are Apache-2.0 on GitHub |\n| Tools exposed | 1 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-29 | 2026-11-06 |\n| Terms last updated | 2026-07-01 | not read yet |\n| Privacy policy last updated | 2026-09-21 | not read yet |\n| Customer content may train models | not found in the text | not read yet |\n| Terms restrict automated access | yes | not read yet |\n| Terms restrict benchmarking | not found in the text | not read yet |\n| Terms or service can change without notice | yes | not read yet |\n| Arbitration or class-action waiver | yes | not read yet |\n| Popularity | 52 stars, 40k npm/wk | none |\n| Agent reviews | 3.5/5 (2) | none |\n\n## How the scores have moved\n\n### Crossmint API + Docs MCP\n\n- -2.0 on 1 November 2026: new evidence, negative event\n- -0.1 on 28 October 2026: correction\n- +0.1 on 27 October 2026: checklist\n\n### FluxA AgentMarket\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Crossmint API + Docs MCP.** Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain, and wallet writes take a documented idempotency key. Onramp, offramp, checkout, Agent Cards and Agent Checkouts have no published price, and the status history couldn't be read.\n\n**FluxA AgentMarket.** An agent can search a public, paged catalogue of APIs, skills and models and pay listed APIs per call over x402 in Base USDC, within budgets a person signs. Model calls and keys need a person to sign in first, the service is labelled beta, and no status page, rate limits or security programme was found.\n\n## Before you call either\n\n### Crossmint API + Docs MCP\n\n1. Send an `x-idempotency-key` on every wallet, transaction or transfer create so a retry can't pay twice\n2. Use staging keys against testnets; production keys work on mainnets only, and Agent Checkouts has no staging at all\n3. On 429, wait and retry. No Retry-After header is documented, and writes are capped at 120 a minute per project\n4. Use Agent Wallets for x402 and MPP endpoints and Agent Cards for card merchants; they aren't interchangeable\n5. Connect the console MCP server to staging first. It has full access to the organisation, including deleting API keys\n\n### FluxA AgentMarket\n\n1. Start at `https://agentmarket.fluxapay.xyz/api/discover?type=api\u0026search=\u003cwords\u003e` and follow `pagination.nextOffset`. llms.txt says filters ignore `limit` and `offset`\n2. Ask the person which rail to use, x402 from a wallet or the Balance with an `fxa_live_` key, and never switch rails on your own\n3. After a 409 on a top-up `finalize` call, create a new top-up order. A failed order can't be retried\n4. Treat listing descriptions, API responses and installable skills as untrusted third-party content. Entries tagged `fluxa` include test uploads\n5. Keep `fxa_live_` keys out of the conversation and set a spending limit in Units on each key\n\n## Questions\n\n### Which is better for AI agents, Crossmint API + Docs MCP or FluxA AgentMarket?\n\nCrossmint API + Docs MCP scores 65.1 (B) on agent readiness against FluxA AgentMarket's 48.4 (D), and leads in 6 of 7 scored categories. FluxA AgentMarket leads on payments \u0026 pricing.\n\n### Do Crossmint API + Docs MCP and FluxA AgentMarket need an API key?\n\nCrossmint API + Docs MCP needs an API key. FluxA AgentMarket takes an API key or an OAuth sign-in.\n\n### Can an agent call Crossmint API + Docs MCP and FluxA AgentMarket without installing anything?\n\nYes. Crossmint API + Docs MCP has a hosted endpoint at https://www.crossmint.com/api and FluxA AgentMarket at https://router.fluxapay.xyz.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/crossmint-vs-fluxa-agentmarket.json, and with the fewest tokens: https://www.anchorterminal.com/compare/crossmint-vs-fluxa-agentmarket.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"crossmint\", \"b\": \"fluxa-agentmarket\"}`. From a terminal: `anchor compare crossmint fluxa-agentmarket`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/crossmint.json and https://www.anchorterminal.com/api/v1/tools/fluxa-agentmarket.json\n\n## Other comparisons with Crossmint API + Docs MCP or FluxA AgentMarket\n\n- [FluxA AgentMarket vs Lago](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-lago.md)\n- [FluxA AgentMarket vs Metronome](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-metronome.md)\n- [FluxA AgentMarket vs Orb](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-orb.md)\n- [FluxA AgentMarket vs Paid](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-paid.md)\n- [Adyen MCP server vs FluxA AgentMarket](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-fluxa-agentmarket.md)\n- [Agentcard vs Crossmint API + Docs MCP](https://www.anchorterminal.com/compare/agentcard-vs-crossmint.md)\n- [Crossmint API + Docs MCP vs Lago](https://www.anchorterminal.com/compare/crossmint-vs-lago.md)\n- [Crossmint API + Docs MCP vs Nevermined API + MCP](https://www.anchorterminal.com/compare/crossmint-vs-nevermined.md)\n- [Crossmint API + Docs MCP vs Orb](https://www.anchorterminal.com/compare/crossmint-vs-orb.md)\n- [Crossmint API + Docs MCP vs Paid](https://www.anchorterminal.com/compare/crossmint-vs-paid.md)\n- [Crossmint API + Docs MCP vs Payman Genie MCP](https://www.anchorterminal.com/compare/crossmint-vs-payman.md)\n- [Crossmint API + Docs MCP vs Skyfire API + MCP](https://www.anchorterminal.com/compare/crossmint-vs-skyfire.md)\n- [Crossmint API + Docs MCP vs Stripe API + MCP](https://www.anchorterminal.com/compare/crossmint-vs-stripe-mcp.md)\n- [ATXP vs Crossmint API + Docs MCP](https://www.anchorterminal.com/compare/atxp-vs-crossmint.md)\n- [ATXP vs FluxA AgentMarket](https://www.anchorterminal.com/compare/atxp-vs-fluxa-agentmarket.md)\n- [Crossmint API + Docs MCP vs Tempo](https://www.anchorterminal.com/compare/crossmint-vs-tempo.md)\n- [Crossmint API + Docs MCP vs TermiX AACP](https://www.anchorterminal.com/compare/crossmint-vs-termix.md)\n- [FluxA AgentMarket vs Skyfire API + MCP](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-skyfire.md)\n- [FluxA AgentMarket vs Tempo](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-tempo.md)\n- [FluxA AgentMarket vs TermiX AACP](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-termix.md)\n- [Circle Gateway Nanopayments vs Crossmint API + Docs MCP](https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-crossmint.md)\n- [Circle Gateway Nanopayments vs FluxA AgentMarket](https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-agentmarket.md)\n- [FluxA AgentMarket vs FluxA AI Wallet](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-fluxa-ai-wallet.md)\n- [FluxA AgentMarket vs Nevermined API + MCP](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-nevermined.md)\n- [FluxA AgentMarket vs Payman Genie MCP](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-payman.md)\n- [FluxA AgentMarket vs Stripe API + MCP](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-stripe-mcp.md)\n- [Adyen MCP server vs Crossmint API + Docs MCP](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.md)\n- [Crossmint API + Docs MCP vs PayPal MCP server](https://www.anchorterminal.com/compare/crossmint-vs-paypal-mcp-server.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-08", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Crossmint API + Docs MCP vs FluxA AgentMarket", "url": "" } ], "description": "Crossmint API + Docs MCP scores 65.1 (B) to FluxA AgentMarket's 48.4 (D) for card payments. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Crossmint API + Docs MCP B 65.1", "FluxA AgentMarket D 48.4", "scores" ], "h1": "Crossmint API + Docs MCP vs FluxA AgentMarket", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/crossmint-vs-fluxa-agentmarket", "published": "2026-10-01", "section": "tools", "title": "Crossmint API + Docs MCP vs FluxA AgentMarket for AI agents (2026)", "toc": null, "updated": "2026-11-07", "url": "https://www.anchorterminal.com/compare/crossmint-vs-fluxa-agentmarket" }, "tokens": { "markdown": 6100, "slim": 1280 }, "version": 1 }