{ "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", "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, then from $0.02 per monthly active wallet with volume discounts. Tokenisation from $0.01 an action. 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": "2026-10-01", "graded": true, "anchor": { "graded": true, "score": 67.4, "grade": "B", "agentReady": false, "rank": 140, "ranked": true, "rankOf": 452, "categoryRank": 4, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 71, "maintenance": 85, "payments": 50, "reliability": 53, "schema": 71, "security": 73, "transparency": 83 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain. No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts.", "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", "Idempotency keys on transaction and transfer creation, and cursor or page pagination with date filters", "Regulatory footprint stated in public, a Spanish CNMV crypto-asset service provider authorisation plus FinCEN and FINTRAC registrations", "16 SDK release commits since 1 July, the latest on 1 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", "Status history is on a JavaScript-only Datadog page, and the docs changelog stops at 11 February 2026", "No MCP server for wallets or payments, only a one-tool docs search", "SDKs in TypeScript only" ], "agentNotes": [ "Send an `x-idempotency-key` on every 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", "Append `.md` to any docs URL for a Markdown copy" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 67.4 } ], "editorialScores": { "ergonomics": 71, "maintenance": 85, "payments": 50, "reliability": 53, "schema": 71, "security": 73, "transparency": 65 }, "provenanceScore": 100 }, "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, 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": 100 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/crossmint.json", "live": { "slug": "crossmint", "probe": { "target": "https://www.crossmint.com/api", "method": "get", "lastAt": "2026-10-05T03:17:24.624860495Z", "lastOk": true, "lastStatus": 404, "lastMs": 140, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 168, "p95ms24h": 418, "samples24h": 273, "samples30d": 1140, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 38, "ok": 38 } ] }, "vendorStatus": { "page": "https://status.crossmint.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-04T21:39:55.788897681Z" }, "versions": [ { "registry": "npm", "name": "@crossmint/client-sdk-react-ui", "version": "4.9.0", "seenAt": "2026-10-04T16:24:55.247658176Z" }, { "registry": "npm", "name": "@crossmint/wallets-sdk", "version": "1.19.0", "seenAt": "2026-10-04T16:24:54.368403505Z" } ], "githubStars": 52, "npmWeekly": 54443, "securityTxt": { "url": "https://crossmint.com/.well-known/security.txt", "state": "valid", "checkedAt": "2026-10-04T15:15:57.080360635Z" }, "llmsTxt": { "url": "https://docs.crossmint.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:17:29.170061537Z" }, "domain": { "domain": "crossmint.com", "registered": "2007-02-23", "source": "https://rdap.verisign.com/com/v1/domain/crossmint.com", "checkedAt": "2026-10-04T13:07:50.738904164Z" }, "pages": [ { "url": "https://docs.crossmint.com/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:43:32.688203345Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "9586f8e8a1d3" }, { "url": "https://www.crossmint.com/pricing", "kind": "pricing", "status": 304, "checkedAt": "2026-10-04T15:50:02.571676047Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "dffec4faf7a5" }, { "url": "https://www.crossmint.com/legal/privacy-policy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-04T15:49:58.143805166Z", "changedAt": "2026-10-02T15:26:08.112583044Z", "fingerprint": "73ab07afabce" }, { "url": "https://www.crossmint.com/legal/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:50:00.310946993Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "869ee89b903b" } ], "updatedAt": "2026-10-05T03:17:24.624860495Z" } }, "b": { "slug": "nevermined", "name": "Nevermined API + MCP", "vendor": "Nevermined", "vendorUrl": "https://nevermined.ai", "kind": "http-api", "category": "payment-platforms", "summary": "Payments, metering and access control for agents, MCP tools and APIs.", "url": "https://www.anchorterminal.com/tools/nevermined", "markdownUrl": "https://www.anchorterminal.com/tools/nevermined.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/nevermined.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/nevermined.json", "repo": "https://github.com/nevermined-io/payments", "license": "Apache-2.0", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.live.nevermined.app", "packages": [ { "registry": "npm", "name": "@nevermined-io/payments" }, { "registry": "pypi", "name": "payments-py" } ], "auth": "mixed", "authNotes": "One Bearer API key per environment (sandbox or live prefix). Browser MCP clients get an x402 permission through OAuth 2.1 with PKCE, and headless agents can get a key through the device flow (RFC 8628). Keys from an earlier generation are rejected by the Router with 403 BCK.ROUTER.0008.", "pricing": "freemium", "pricingNotes": "Free plan $0 with up to 20 agents and 10 payment plans and Discord support. Premium $250 a month (100 agents, 50 plans, 5 seats, dashboards). Enterprise $500 a month (unlimited agents and plans). Merchants pay 1% on stablecoin rails and 2% on card rails, taken from settlement, plus card processing at cost. Buyers pay nothing on Nevermined merchants; the Router adds 2% on top when paying external x402 or MPP services (https://nevermined.ai/pricing).", "priceSummary": "1% fee", "where": "hosted", "x402": { "level": "partial", "evidence": "Seller paywalls answer 402 and verify a Nevermined x402 access token in the payment-signature header, settled against a plan rather than a raw onchain transfer. The Router pays standard x402 services on Base in USDC (https://nevermined.ai/docs/products/catalog/router/rails-x402).", "endpoints": [] }, "toolCount": 12, "popularity": { "githubStars": 17, "npmWeekly": 468, "pypiWeekly": 4372, "asOf": "2026-09-30" }, "docsUrl": "https://nevermined.ai/docs", "llmsTxt": "https://nevermined.ai/docs/llms.txt", "registryName": "io.github.nevermined-io/catalog", "capabilities": [ "payments.x402", "payments.card", "payments.stablecoin", "payments.metering", "payments.checkout" ], "tags": [ "hosted", "freemium", "mcp", "llms-txt", "x402", "stablecoin", "typescript", "python", "webhooks" ], "lastRelease": "2026-09-29", "graded": true, "anchor": { "graded": true, "score": 71.1, "grade": "BB", "agentReady": true, "rank": 89, "ranked": true, "rankOf": 452, "categoryRank": 3, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 74, "maintenance": 89, "payments": 65, "reliability": 72, "schema": 80, "security": 63, "transparency": 54 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Fees published without a login, 1% on stablecoins, 2% on cards and 2% for the Router. The x402 paywall settles Nevermined plan tokens, so generic x402 clients need its SDK or API to pay.", "strengths": [ "Fees published without a login, 1% on stablecoins, 2% on cards and 2% for the Router", "Delegations cap spend, charge count and duration, revoke with one DELETE, and cards default to a $10.00 ceiling", "Errors carry a stable `BCK.*` code, a remediation hint, a docs link and a `retryable` flag", "TypeScript and Python SDKs released five and three times since mid-August, and the Catalog MCP server is in the official registry", "Claims SOC 2 Type II, ISO/IEC 27001:2022 and PCI SAQ-D, with reports on request under NDA" ], "weaknesses": [ "The x402 paywall settles Nevermined plan tokens, so generic x402 clients need its SDK or API to pay", "The first API key needs a person to sign in, and the preferred flow hands the key back in a URL query string", "No published rate limits or SLA", "Privacy policy undated, still cites Privacy Shield, and names only two Google subprocessors", "`pay_service` moves money with no per-call confirmation" ], "agentNotes": [ "Call `quote_service` before `pay_service`; quotes cost nothing", "Ask the person to open the `setup_delegation` URL once; you can't mint the first key or budget yourself", "Branch on the error `code` and retry only when `retryable` is true", "Create a small, short delegation per task; cards stop at $10.00 across delegations unless the owner raises it", "Use `sandbox:` keys and mcp.sandbox.nevermined.app until the flow works" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 71.1 } ], "editorialScores": { "ergonomics": 74, "maintenance": 89, "payments": 65, "reliability": 72, "schema": 80, "security": 63, "transparency": 37 }, "provenanceScore": 71 }, "connect": { "http": "curl -X POST https://api.live.nevermined.app/api/v1/delegation/create -H \"Authorization: Bearer $NVM_API_KEY\" \\\n -H \"Content-Type: application/json\" -d '{\"provider\":\"erc4337\",\"currency\":\"usdc\",\"spendingLimitCents\":500,\"durationSecs\":604800}'", "claudeCode": "claude mcp add --transport http nevermined https://mcp.live.nevermined.app/mcp", "config": { "mcpServers": { "nevermined": { "headers": { "Authorization": "Bearer ${NVM_API_KEY}" }, "url": "https://mcp.live.nevermined.app/mcp" } } } }, "letme": { "capability": "https://letme.dev/payments.x402", "tool": "https://letme.dev/nevermined" }, "area": "payments", "unitPrices": [ { "item": "Stablecoin settlement", "unit": "pct", "usd": 1, "note": "taken from merchant settlement" }, { "item": "Card settlement", "unit": "pct", "usd": 2, "note": "plus processor fees" }, { "item": "Router fee", "unit": "pct", "usd": 2, "note": "added on top of external x402 and MPP payments" }, { "item": "Premium plan", "unit": "month", "usd": 250 }, { "item": "Enterprise plan", "unit": "month", "usd": 500 } ], "provenance": { "legalEntity": "Nevermined AG", "domain": "nevermined.ai", "domainRegistered": "2018-06-14", "domainNote": "The API, app and MCP server run on nevermined.app (registered 2022-09-15); nevermined.io redirects to nevermined.ai. Nevermined AG is in Zug, Switzerland.", "endpointOnVendorDomain": false, "terms": "https://nevermined.ai/legal/terms", "privacy": "https://nevermined.ai/legal/privacy", "statusPage": "https://status.nevermined.ai", "changelog": "https://github.com/nevermined-io/payments/releases", "securityTxt": "none", "checked": "2026-09-30", "score": 71 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/nevermined.json", "live": { "slug": "nevermined", "probe": { "target": "https://api.live.nevermined.app", "method": "get", "lastAt": "2026-10-05T03:17:29.474249478Z", "lastOk": true, "lastStatus": 200, "lastMs": 976, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 1021, "p95ms24h": 1526, "samples24h": 273, "samples30d": 1140, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 38, "ok": 38 } ] }, "vendorStatus": { "page": "https://status.nevermined.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-04T21:40:16.266235475Z" }, "versions": [ { "registry": "github", "name": "nevermined-io/payments", "version": "v1.13.0", "released": "2026-09-09", "seenAt": "2026-10-04T16:34:28.19985589Z" }, { "registry": "mcp-registry", "name": "io.github.nevermined-io/catalog", "version": "1.51.0", "seenAt": "2026-10-04T23:42:40.113054682Z" }, { "registry": "npm", "name": "@nevermined-io/payments", "version": "1.13.0", "seenAt": "2026-10-04T16:34:27.555122253Z" }, { "registry": "pypi", "name": "payments-py", "version": "1.18.0", "released": "2026-09-09", "seenAt": "2026-10-04T16:34:28.011637967Z" } ], "githubStars": 17, "npmWeekly": 696, "pypiWeekly": 4770, "securityTxt": { "url": "https://nevermined.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:37.602676055Z" }, "llmsTxt": { "url": "https://nevermined.ai/docs/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:18:03.22835754Z" }, "domain": { "domain": "nevermined.ai", "registered": "2018-06-14", "source": "https://rdap.identitydigital.services/rdap/domain/nevermined.ai", "checkedAt": "2026-10-04T13:08:47.476525716Z" }, "pages": [ { "url": "https://nevermined.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-04T15:46:15.323773266Z", "changedAt": "2026-10-02T15:22:33.813943463Z", "fingerprint": "45e5aff69c79" }, { "url": "https://nevermined.ai/legal/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:46:11.0649245Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "7f7e042de325" }, { "url": "https://nevermined.ai/legal/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:46:13.361510527Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "6742c17c79ba" } ], "updatedAt": "2026-10-05T03:17:29.474249478Z" } }, "summary": "Nevermined API + MCP has a score of 71.1 (BB) against Crossmint API + Docs MCP's 67.4 (B). Both do payments card. The largest gap is transparency \u0026 trust, 29 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined", "json": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined.md", "slim": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined.min.md" }, "markdown": "Nevermined API + MCP has a score of 71.1 (BB) against Crossmint API + Docs MCP's 67.4 (B). Both do payments card. The largest gap is transparency \u0026 trust, 29 points.\n\n- Crossmint API + Docs MCP: grade B, 67.4/100, rank #140 of 452. Markdown https://www.anchorterminal.com/tools/crossmint.md · JSON https://www.anchorterminal.com/api/v1/tools/crossmint.json\n- Nevermined API + MCP: grade BB, 71.1/100, rank #89 of 452. Markdown https://www.anchorterminal.com/tools/nevermined.md · JSON https://www.anchorterminal.com/api/v1/tools/nevermined.json\n\n## Which one, for what\n\nPick Crossmint API + Docs MCP for security \u0026 auth (+10), transparency \u0026 trust (+29).\n\nPick Nevermined API + MCP for reliability (+19), schema \u0026 documentation (+9), payments \u0026 pricing (+15).\n\n## Score by category\n\n| Category | Weight | Crossmint API + Docs MCP | Nevermined API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 53 | 72 | Nevermined API + MCP +19 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 71 | 80 | Nevermined API + MCP +9 |\n| Agent ergonomics | 13% (16.2 this run) | 71 | 74 | Nevermined API + MCP +3 |\n| Security \u0026 auth | 14% (17.5 this run) | 73 | 63 | Crossmint API + Docs MCP +10 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 50 | 65 | Nevermined API + MCP +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 85 | 89 | Nevermined API + MCP +4 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 83 | 54 | Crossmint API + Docs MCP +29 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **67.4 · B** | **71.1 · BB** | |\n\n## Facts side by side\n\n| Fact | Crossmint API + Docs MCP | Nevermined API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Crossmint | Nevermined |\n| Hosted endpoint | `https://www.crossmint.com/api` | `https://api.live.nevermined.app` |\n| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | payer tooling only | payer tooling only |\n| Licence | Apache-2.0 | Apache-2.0 |\n| Tools exposed | 1 | 12 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | `io.github.nevermined-io/catalog` |\n| Last release | 2026-10-01 | 2026-09-29 |\n| Popularity | 52 stars, 40k npm/wk | 17 stars, 468 npm/wk, 4.4k PyPI/wk |\n| Agent reviews | 3.5/5 (2) | 3/5 (2) |\n\n## Verdicts\n\n**Crossmint API + Docs MCP.** Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain. No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts.\n\n**Nevermined API + MCP.** Fees published without a login, 1% on stablecoins, 2% on cards and 2% for the Router. The x402 paywall settles Nevermined plan tokens, so generic x402 clients need its SDK or API to pay.\n\n## Before you call either\n\n### Crossmint API + Docs MCP\n\n1. Send an `x-idempotency-key` on every 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. Append `.md` to any docs URL for a Markdown copy\n\n### Nevermined API + MCP\n\n1. Call `quote_service` before `pay_service`; quotes cost nothing\n2. Ask the person to open the `setup_delegation` URL once; you can't mint the first key or budget yourself\n3. Branch on the error `code` and retry only when `retryable` is true\n4. Create a small, short delegation per task; cards stop at $10.00 across delegations unless the owner raises it\n5. Use `sandbox:` keys and mcp.sandbox.nevermined.app until the flow works\n\n## Other comparisons with Crossmint API + Docs MCP or Nevermined API + MCP\n\n- [Crossmint API + Docs MCP vs Tempo](https://www.anchorterminal.com/compare/crossmint-vs-tempo.md)\n- [Nevermined API + MCP vs Skyfire API + MCP](https://www.anchorterminal.com/compare/nevermined-vs-skyfire.md)\n- [Nevermined API + MCP vs Tempo](https://www.anchorterminal.com/compare/nevermined-vs-tempo.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- [Nevermined API + MCP vs Payman Genie MCP](https://www.anchorterminal.com/compare/nevermined-vs-payman.md)\n- [Nevermined API + MCP vs Stripe API + MCP](https://www.anchorterminal.com/compare/nevermined-vs-stripe-mcp.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-05", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Crossmint API + Docs MCP vs Nevermined API + MCP", "url": "" } ], "description": "Nevermined API + MCP has a score of 71.1 (BB) against Crossmint API + Docs MCP's 67.4 (B). Both do payments card. The largest gap is transparency \u0026 trust, 29 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Crossmint API + Docs MCP B 67.4", "Nevermined API + MCP BB 71.1", "scores" ], "h1": "Crossmint API + Docs MCP vs Nevermined API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-crossmint-vs-nevermined.png", "path": "/compare/crossmint-vs-nevermined", "published": "2026-10-01", "section": "tools", "title": "Crossmint API + Docs MCP vs Nevermined API + MCP for AI agents", "toc": null, "updated": "2026-10-05", "url": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined" }, "tokens": { "markdown": 1450, "slim": 380 }, "version": 1 }