{ "data": { "a": { "slug": "circle-gateway-nanopayments", "name": "Circle Gateway Nanopayments", "vendor": "Circle", "vendorUrl": "https://www.circle.com", "kind": "http-api", "category": "payment-platforms", "summary": "Circle Gateway Nanopayments is a hosted x402 facilitator that settles gas-free USDC payments as small as $0.000001. Buyers sign offchain authorisations against a Gateway balance, and Circle settles net positions onchain in batches.", "url": "https://www.anchorterminal.com/tools/circle-gateway-nanopayments", "markdownUrl": "https://www.anchorterminal.com/tools/circle-gateway-nanopayments.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/circle-gateway-nanopayments.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/circle-gateway-nanopayments.json", "dns": "circle-gateway-nanopayments.grade.anchorterminal.com", "repo": "https://github.com/circlefin/evm-gateway-contracts", "license": "Proprietary hosted service under the Circle Developer Terms. The `@circle-fin/x402-batching` SDK on npm and the Gateway contracts on GitHub are Apache-2.0", "transports": [ "http" ], "remoteUrl": "https://gateway-api.circle.com", "packages": [ { "registry": "npm", "name": "@circle-fin/x402-batching" } ], "auth": "none", "authNotes": "No API key or account on the self-managed route. A buyer signs each payment as an EIP-3009 `TransferWithAuthorization` with an EOA private key, and a seller supplies only a receiving address. The SDK's facilitator client sends no credential by default and accepts optional headers. The OpenAPI file defines a Bearer key scheme and applies it to no operation. The Circle Wallets route in the buyer quickstart needs a Circle Console account, an API key and an entity secret. Smart contract accounts are not supported.", "pricing": "usage", "pricingNotes": "No per-payment fee or gas for a nanopayment, per the docs. The buyer pays chain gas once for the deposit. Crosschain withdrawals carry a 0.005% transfer fee plus a gas fee by source chain, from $0.001 to $1.00, and same-chain withdrawals carry no transfer fee. Testnets work with faucet USDC and no account. No subscription or card. The developer terms say Gateway fees are communicated through the API and may change (checked 2026-10-09).", "priceSummary": "0.01% fee", "where": "hosted", "x402": { "level": "partial", "evidence": "Circle runs the facilitator. Sellers using `createGatewayMiddleware` or `BatchFacilitatorClient` answer `402 Payment Required` with a `PAYMENT-REQUIRED` header and settle through `POST /v1/x402/settle` on gateway-api.circle.com, under the x402 `exact` scheme with `extra.name` set to `GatewayWalletBatched`. Circle's own API is not paid over x402 (https://developers.circle.com/gateway-nanopayments; https://developers.circle.com/openapi/gateway-nanopayments.yaml, checked 2026-10-09).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 16895, "pypiWeekly": null, "asOf": "2026-10-09" }, "docsUrl": "https://developers.circle.com/gateway-nanopayments", "llmsTxt": "https://developers.circle.com/llms.txt", "openapi": "https://developers.circle.com/openapi/gateway-nanopayments.yaml", "capabilities": [ "payments.x402", "payments.stablecoin" ], "tags": [ "hosted", "usage-based", "x402", "facilitator", "stablecoins", "usdc", "micropayments", "batched-settlement", "non-custodial", "keyless", "openapi", "llms-txt", "typescript", "open-source-sdk" ], "lastRelease": "2026-10-22", "graded": true, "anchor": { "graded": true, "score": 69.7, "grade": "B", "agentReady": false, "rank": 228, "ranked": true, "rankOf": 1513, "categoryRank": 5, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 75, "maintenance": 77, "payments": 80, "reliability": 66, "schema": 80, "security": 64, "transparency": 73 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-01" }, "negative": -3, "negativeNotes": [ "26 August 2026. `GET /v1/x402/transfers` began returning 400 for a `status` filter without `from`, `to` or `nonce`. Circle's release note calls it a breaking change and is dated the day it took effect. No earlier notice was found in the release notes (https://developers.circle.com/release-notes/gateway-2026). Documented, so the smallest deduction." ], "verdict": "A buyer with an EOA key and a seller with a wallet address can transact with no account or API key, and the settle call returns 16 documented error codes with recovery steps. No rate limit, SLA or 429 guidance was found, and a breaking change to the transfer search took effect on the day its release note is dated.", "bestFor": "Sellers charging fractions of a cent per API call and agents making many small payments from one prefunded balance on EVM chains.", "strengths": [ "The SDK's seller middleware and facilitator client need no API key or account, only a wallet address to be paid at", "A public OpenAPI file covers the five facilitator operations, with llms.txt and a Markdown twin of every docs page", "The error reference lists 16 settle and verify codes, each with a cause and a recovery step", "The batching contracts were audited by OtterSec (report dated 10 June 2026), and the Gateway contracts are Apache-2.0 on GitHub", "Deposits sit in a non-custodial contract, with a withdrawal path that needs no Circle API after a 7-day delay" ], "weaknesses": [ "No rate limit, 429 guidance or SLA was found for the Gateway API in the reviewed documentation", "From 26 August 2026 a `status` filter alone on `GET /v1/x402/transfers` returns 400. The release note is dated the same day", "Only EOA signatures work. Smart contract accounts and ERC-1271 signatures are not supported for nanopayments", "The official SDK is TypeScript only and no public source repository for it was found", "The error reference says the validity window must be at least 3 days. The seller quickstart and the SDK source say 7 days", "The developer terms let Circle change or discontinue Gateway without prior notice and change its fees at its discretion" ], "agentNotes": [ "Deposit on the chain you will pay from. `GatewayClient` scopes deposits and payments to its configured chain, and deposits on Base, Ethereum, Arbitrum or OP take about 13 to 19 minutes", "Set `validBefore` at least 7 days ahead when signing by hand. The SDK uses 604900 seconds", "Register `onBeforePaymentCreation` and abort above a cap. `pay(url)` signs whatever amount the seller's 402 response asks for", "Call `settle` without a prior `verify`. Balance and nonce checks happen only at settle time", "Pass `from`, `to` or `nonce` whenever you filter transfers by `status`, and wait for `completed` before a dependent onchain step" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 3.3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.7 } ], "editorialScores": { "ergonomics": 75, "maintenance": 77, "payments": 80, "reliability": 66, "schema": 80, "security": 64, "transparency": 59 }, "provenanceScore": 86, "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": { "install": "npm install @circle-fin/x402-batching" }, "letme": { "capability": "https://letme.dev/payments.x402", "tool": "https://letme.dev/circle-gateway-nanopayments" }, "sameCompany": [ "circle-wallets" ], "area": "payments", "unitPrices": [ { "item": "Batched nanopayment", "unit": "tx", "usd": 0, "note": "no per-payment fee or gas for buyer or seller, per the docs. The deposit costs chain gas once" }, { "item": "Crosschain withdrawal transfer fee", "unit": "pct", "usd": 0.005, "note": "0.5 basis points. Not charged on same-chain withdrawals" }, { "item": "Gateway gas fee, Base as source chain", "unit": "tx", "usd": 0.01, "note": "by source chain, from $0.001 on Sei and Unichain to $1.00 on Ethereum" }, { "item": "Forwarding Service fee", "unit": "tx", "usd": 0.05, "note": "optional, plus a forwarding gas fee" } ], "provenance": { "legalEntity": "Circle Technology Services, LLC", "domain": "circle.com", "domainRegistered": "1999-04-09", "endpointOnVendorDomain": true, "terms": "https://console.circle.com/legal/developer-terms", "privacy": "https://www.circle.com/legal/privacy-policy", "statusPage": "https://status.circle.com", "changelog": "https://developers.circle.com/release-notes/gateway-2026", "securityTxt": "none", "checked": "2026-10-09", "notes": [ "The Developer Terms of Service (last updated 16 September 2026) are a contract with Circle Technology Services, LLC and name Gateway as a Permissionless Product. They say committed USDC stays the user's property and that Circle may modify or discontinue Permissionless Products without prior notice.", "The Privacy Policy (last updated 16 September 2026) is from Circle Internet Group, Inc. and its subsidiaries and links a sub-processor list last updated 22 December 2025.", "The API hosts are gateway-api.circle.com and gateway-api-testnet.circle.com, on the vendor's domain.", "status.circle.com is an Atlassian Statuspage with Circle Gateway components for each chain. It has no component named for nanopayments or x402.", "www.circle.com/.well-known/security.txt answered 404. The SECURITY.md in github.com/circlefin/skills names a bug bounty programme at hackerone.com/circle-bbp.", "RDAP for circle.com gives a registration date of 1999-04-09." ], "score": 86 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/circle-gateway-nanopayments.json", "live": { "slug": "circle-gateway-nanopayments", "probe": { "target": "https://gateway-api.circle.com", "method": "get", "lastAt": "2026-11-08T14:47:44.606260779Z", "lastOk": true, "lastStatus": 404, "lastMs": 169, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 143, "p95ms24h": 412, "samples24h": 242, "samples30d": 7411, "days": [ { "date": "2026-10-09", "probes": 85, "ok": 85 }, { "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": 249, "ok": 249 }, { "date": "2026-10-30", "probes": 248, "ok": 248 }, { "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": "2026-10-09T00:00:00Z" }, "vendorStatus": { "page": "https://status.circle.com", "indicator": "major", "summary": "Partial System Outage", "checkedAt": "2026-11-08T14:50:11.012272017Z" }, "versions": [ { "registry": "npm", "name": "@circle-fin/x402-batching", "version": "4.0.0", "seenAt": "2026-11-08T00:43:35.631184434Z" } ], "githubStars": 10, "npmWeekly": 21107, "securityTxt": { "url": "https://circle.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:28.127765202Z" }, "llmsTxt": { "url": "https://developers.circle.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:31:48.540425714Z" }, "domain": { "domain": "circle.com", "registered": "1999-04-09", "source": "https://rdap.verisign.com/com/v1/domain/circle.com", "checkedAt": "2026-11-01T14:20:05.130755991Z" }, "pages": [ { "url": "https://developers.circle.com/release-notes/gateway-2026", "kind": "changelog", "status": 200, "checkedAt": "2026-11-08T14:43:50.82266359Z", "changedAt": "2026-10-30T05:35:09.876964921Z", "fingerprint": "4a939d01728d" }, { "url": "https://www.circle.com/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:26:42.635311822Z", "changedAt": "2026-11-04T08:38:34.187154264Z", "fingerprint": "62e53a63a64f" }, { "url": "https://console.circle.com/legal/developer-terms", "kind": "terms", "status": 200, "checkedAt": "2026-11-08T14:53:00.328881832Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "06bed5753aaf" } ], "github": { "repo": "circlefin/evm-gateway-contracts", "checkedAt": "2026-11-02T08:38:44.04095664Z", "stars": 10, "archived": false, "issuesEnabled": true, "pushedAt": "2026-09-29T18:48:39Z", "openIssues": 1, "openPRs": 8, "issuesOpened90d": 1, "issuesClosed90d": 0, "prsMerged90d": 2, "ci": { "branch": "master", "runs": 4, "success": 1, "failure": 0, "other": 3, "latest": "success", "latestAt": "2026-09-29T18:50:56Z" }, "replies": { "sampled": 1, "unanswered": 1 } }, "updatedAt": "2026-11-08T14:53:00.328881832Z" }, "streak": { "days": 30, "from": "2026-10-09", "sinceWatching": true, "best": 30 } }, "answer": "Circle Gateway Nanopayments scores 69.7 (B) on agent readiness against FluxA AI Wallet's 47 (D), and leads in every scored category.", "b": { "slug": "fluxa-ai-wallet", "name": "FluxA AI Wallet", "vendor": "FluxA Technology Pte. Ltd.", "vendorUrl": "https://fluxapay.xyz", "kind": "http-api", "category": "agent-wallets", "summary": "FluxA AI Wallet is a hosted agent wallet from FluxA Technology that signs x402 (EIP-3009) USDC payments on Base within budgets a person approves, reached through the fluxa-wallet CLI, a stdio MCP server and agent skills.", "url": "https://www.anchorterminal.com/tools/fluxa-ai-wallet", "markdownUrl": "https://www.anchorterminal.com/tools/fluxa-ai-wallet.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/fluxa-ai-wallet.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/fluxa-ai-wallet.json", "dns": "fluxa-ai-wallet.grade.anchorterminal.com", "repo": "https://github.com/FluxA-Agent-Payment/FluxA-AI-Wallet-MCP", "license": "The CLI and MCP server source is Apache-2.0 (LICENSE file and both package.json files), though the README's last section says MIT. The hosted wallet service is closed, and no terms covering the wallet were found", "transports": [ "http", "stdio" ], "remoteUrl": "https://walletapi.fluxapay.xyz", "packages": [ { "registry": "npm", "name": "@fluxa-pay/fluxa-wallet" }, { "registry": "npm", "name": "@fluxa-pay/fluxa-wallet-mcp" } ], "auth": "mixed", "authNotes": "An agent connects with `fluxa-wallet connect` (or the MCP tool `connect_wallet`), which returns an `authorization_url` on agentwallet.fluxapay.xyz for the owner to approve in a browser. The claim returns an Agent ID, a token and an RS256 JWT, stored in `~/.fluxa-ai-wallet-mcp/config.json` (mode 0600) or injected as `AGENT_ID`, `AGENT_TOKEN` and `AGENT_JWT`. The owner picks the token's validity (1h, 24h, 7d, 1mo, 180d or 1y; the server suggests 180 days locally and 7 days in cloud or container environments), and the JWT is refreshed with the token. `token_expired` and `token_revoked` return `reconnect_required`. The legacy `init` registers an Agent ID with an unauthenticated `POST https://agentid.fluxapay.xyz/register`. Spending needs a mandate the owner signs in the browser. AgentMarket commands can instead use `fxa_live_` keys with a spend limit, revocable from the CLI.", "pricing": "usage", "pricingNotes": "No fee schedule for the wallet, x402 signing, payouts, payment links or refunds was found in the repository, the skills or the AgentMarket pricing, terms and llms.txt pages (checked 2026-11-07). Merchants set x402 prices. Agent card products list their fees through `fluxa-wallet card types`, which needs a connected wallet, so those fees were not read. The wallet site and docs at agentwallet.fluxapay.xyz and docs.fluxapay.xyz could not be read, so whether opening a wallet needs a card is unchecked. AgentMarket's Balance is $1 = 1 Balance, with Units bundles from $1 to $25.", "priceSummary": "Pay per use", "where": "both", "x402": { "level": "partial", "evidence": "The wallet signs x402 `exact` (EIP-3009) payment authorisations for USDC on Base and Base Sepolia as a buyer (`fluxa-wallet x402 --mandate \u003cid\u003e --payload \u003c402 body\u003e`, MCP `request_x402_payment` and `request_x402_v3_payment`), and its payment links can be paid over x402 so another agent can pay the holder (https://github.com/FluxA-Agent-Payment/FluxA-AI-Wallet-MCP/blob/main/skills/fluxa-agent-wallet/INTEGRATION-GUIDE-CHARGE-AGENT.md, checked 2026-11-07). FluxA's own wallet API is not paid over x402, MPP or L402.", "endpoints": [] }, "toolCount": 15, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-07" }, "docsUrl": "https://docs.fluxapay.xyz/", "capabilities": [ "payments.x402", "wallet.spend-limits", "wallet.onchain", "payments.card", "auth.agent-identity" ], "tags": [ "hosted", "official", "open-source", "apache-2.0", "cli", "mcp", "stdio", "skills", "typescript", "wallet", "x402", "stablecoins", "virtual-cards", "usdc", "base" ], "lastRelease": "2026-11-06", "graded": true, "anchor": { "graded": true, "score": 47, "grade": "D", "agentReady": false, "rank": 1164, "ranked": true, "rankOf": 1513, "categoryRank": 11, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 60, "maintenance": 66, "payments": 45, "reliability": 20, "schema": 61, "security": 52, "transparency": 32 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-11-07" }, "negative": 0, "verdict": "Every spend runs against a mandate the owner signs in a browser, with a budget, a validity window and an optional host allowlist, and payouts need approval or a mandate. The published MCP package is 0.2.0 from March 2026 against 0.6.0 in the repository, and no status page, fee schedule, wallet terms or custody statement was found.", "bestFor": "An agent in a CLI-capable client that needs to pay x402 APIs, send USDC on Base or receive payments through links, inside budgets a person signs.", "strengths": [ "Spending runs against owner-signed mandates with a limit, a validity window and an optional host allowlist, enforced by the wallet API", "Payouts need per-payout browser approval unless a signed mandate is passed, and a required `payout_id` makes repeats return the same payout", "The CLI returns JSON with error codes, `next_command` hints and `retryable` and `reconnect_required` flags", "Client source is public under Apache-2.0, with 25 CLI releases on npm since March 2026, the latest on 6 November 2026", "Payment links let another agent pay the holder over x402, and refunds of link payments are supported" ], "weaknesses": [ "The published MCP package is 0.2.0 from 2 March 2026 with 13 tools, while the repository says 0.6.0 with 15", "No status page, rate limit, SLA, fee schedule or security contact was found", "Who holds the wallet keys is not stated. The docs say FluxA Wallet signs and call it managed", "The only terms and privacy policy read are AgentMarket's, which do not mention the wallet, cards, KYC or payouts", "The skill steers agents to paid APIs over free search and to request budgets for at least 100 calls by default" ], "agentNotes": [ "Run `fluxa-wallet status` first. If `configured` and `wallet_linked` are true, skip `connect`; otherwise show the `authorization_url` and wait with `connect-status --wait 100`", "On `token_expired` or `token_revoked`, reconnect with the same `--agent-id`. Never run `init` to recover, which creates a new identity", "Pass a unique `--id` on every `payout` and reuse it on retry; a repeat returns the existing payout instead of paying twice", "Check `fluxa-wallet mandates` for a signed mandate with enough remaining budget before creating one, and size new budgets to the task", "Install the CLI from npm, not the MCP package, whose npm release 0.2.0 lacks `connect_wallet` and `get_wallet_connection`" ], "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": 47 } ], "editorialScores": { "ergonomics": 60, "maintenance": 66, "payments": 45, "reliability": 20, "schema": 61, "security": 52, "transparency": 26 }, "provenanceScore": 38, "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": "npm install -g @fluxa-pay/fluxa-wallet" }, "letme": { "capability": "https://letme.dev/payments.x402", "tool": "https://letme.dev/fluxa-ai-wallet" }, "sameCompany": [ "fluxa-agentmarket" ], "area": "payments", "provenance": { "legalEntity": "FluxA Technology Pte. Ltd.", "domain": "fluxapay.xyz", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "", "privacy": "", "statusPage": "", "changelog": "", "securityTxt": "unknown", "checked": "2026-11-07", "notes": [ "The legal entity is from the footer of agentmarket.fluxapay.xyz, \"© 2025 FluxA Technology Pte. Ltd. All rights reserved.\", the same on the about, terms, privacy and pricing pages. No registration number, address or country is given on those pages. A web search result names a companieshouse.sg page for FluxA Technology Pte Ltd with UEN 202555700C; that host could not be fetched, so the register entry is unread.", "AgentMarket's terms (effective 14 January 2026) and privacy policy (updated 14 January 2026) describe the marketplace and its Balance and do not mention the Agent Wallet, cards, KYC or payouts, so they are not recorded as the wallet's terms. The terms name no entity in their text and no governing law; contact support.fluxapay@fluxapay.xyz.", "fluxapay.xyz, agentwallet.fluxapay.xyz and docs.fluxapay.xyz could not be read. Each robots.txt fetch was refused for want of an approval on 7 November 2026, so nothing on those hosts was fetched. The wallet's own terms, privacy policy, fees, security.txt and docs are unchecked.", "https://agentmarket.fluxapay.xyz/.well-known/security.txt answered a client error. The repository has no SECURITY.md.", "The wallet API, Agent ID API and approval pages are on fluxapay.xyz subdomains named in the CLI source. agentmarket.fluxapay.xyz's robots.txt allows / and disallows /api/ (except /api/discover and /api/llm/skills.md) and /console/; nothing disallowed was fetched.", "unchecked: RDAP for fluxapay.xyz, the MCP registry, the Wayback Machine, GitHub stars and issues (the GitHub API refused the session) and npm download counts." ], "score": 38 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/fluxa-ai-wallet.json", "live": { "slug": "fluxa-ai-wallet", "probe": { "target": "https://walletapi.fluxapay.xyz", "method": "get", "lastAt": "2026-11-08T14:47:50.695700215Z", "lastOk": true, "lastStatus": 404, "lastMs": 532, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 542, "p95ms24h": 603, "samples24h": 90, "samples30d": 90, "days": [ { "date": "2026-11-08", "probes": 90, "ok": 90 } ], "since": "2026-11-08T00:00:00Z" }, "updatedAt": "2026-11-08T14:47:50.695700215Z" }, "streak": { "days": 0, "from": "2026-11-08", "sinceWatching": true, "best": 0 } }, "edges": [ { "by": 46, "category": "reliability", "leads": "circle-gateway-nanopayments", "name": "Reliability", "reasons": { "a": "Graded as a hosted service on gateway-api.circle.com. status.circle.com is a Statuspage with Circle Gateway components for each chain, mainnet and testnet (20). The history pages, read on 1 November 2026, list every incident from June to 31 October. From 3 August none names Gateway or a Gateway component. They cover USDC mints on single chains, CCTP attestations, xReserve, Wallets and testnets, and the two HyperEVM incidents opened name only CCTP and USDC components. The last Gateway incident was testnet only, 29 June to 2 July, outside the window. A clean record (30). No rate limit with numbers was found for the Gateway API, and an unauthenticated call to `/v1/x402/supported` carried no rate-limit headers (0). No 429 or `Retry-After` guidance was found. Each authorisation carries a unique nonce, a repeat returns `nonce_already_used`, and the error reference says to retry `unexpected_error` (6 of 15). No SLA was found, and the developer terms allow changes without prior notice (0). The release notes record the mainnet launch on 29 April 2026 and the pages read carry no beta label (10).", "b": "Graded with the hosted lines, because signing, mandates and approvals all run on FluxA's wallet API and the CLI and MCP server only wrap it, as kite-agent-passport and kane-cli were read. No status page was found in the repository, the skills or AgentMarket's pages. fluxapay.xyz and the wallet and docs hosts could not be read, so a status page there is unchecked and scored absent (0). With no readable history the record takes the default (5). No rate limit with numbers was found (0). The connection service treats 429 `slow_down` as wait and poll and marks errors `retryable`, the skill says a 503 means retry shortly, payouts require a caller-chosen `payout_id` that returns the existing payout on a repeat, `--biz-id` rejects a duplicate with 409, and card create and recharge resume with `--request-id` instead of paying again. No Retry-After or backoff schedule is documented for the wallet API (10 of 15). No SLA was found (0). No beta label was found on the wallet in what was read, but both packages are at 0.x, agent cards sit behind a waitlist and the wallet site was unread (5 of 10). Total 20." }, "scores": { "a": 66, "b": 20 } }, { "by": 41, "category": "transparency", "leads": "circle-gateway-nanopayments", "name": "Transparency \u0026 trust", "reasons": { "a": "The SDK is Apache-2.0 on npm and the Gateway contracts are Apache-2.0 on GitHub. The API service and the enclave code are closed, under clear developer terms (22 of 30). The privacy policy of 16 September 2026 lists transaction and blockchain data among what is collected and keeps data as long as necessary, with no periods. The service terms link a DPA dated 2022. Nothing found says what the Gateway API logs about a payment (17 of 30). The developer terms promise reasonable efforts to announce the end of support for a version and also let Circle modify or discontinue Gateway without prior notice. The one breaking change found was noted on the day it took effect (6 of 20). A sub-processor list, last updated 22 December 2025, names each processor with its purpose and country (14 of 20).", "b": "The CLI and MCP server source is Apache-2.0 per the LICENSE file and both package.json files, while the README's last section says MIT. The hosted wallet is closed, and no terms covering it were found. AgentMarket's terms describe only the marketplace (15 of 30). AgentMarket's privacy policy of 14 January 2026 names Stripe and model providers and gives no retention periods, and it does not mention wallet addresses, KYC profiles, card data or payouts, which the CLI collects or handles. The wallet's own privacy policy was unreachable (5 of 30). The README marks `init` and `link-wallet` as legacy but still supported, and the skill pins a minimum CLI version; no deprecation policy or dated notice was found (3 of 20). Stripe is the only provider named; no card issuer, KYC provider, custody provider or data location is named. The CLI and MCP code send no telemetry (3 of 20). Total 26." }, "scores": { "a": 73, "b": 32 } }, { "by": 35, "category": "payments", "leads": "circle-gateway-nanopayments", "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. Circle's own API is not paid over x402. Sellers accept x402 through Circle's middleware and facilitator, so the merchant step. An unpaid call to `GET /v1/x402/supported` on 1 November returned 200 with 12 mainnet networks, each x402 version 2, scheme `exact` and `GatewayWalletBatched` (25 of 40). The fee page is public with no login, 0.005% on crosschain withdrawals plus a gas fee by chain, and the docs say a nanopayment costs neither party a fee. No price list states the nanopayment fee as a figure, and the terms say fees are communicated through the API and may change (15 of 20). Testnets run on faucet USDC with no account or card, and mainnet has no subscription (20). An agent holding an EOA key and USDC can deposit and pay with no signup, and a seller needs only an address (20).", "b": "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. The wallet pays x402 as a buyer and its payment links can be paid over x402 so another agent pays the holder, as sponge-wallet's payment links were read. FluxA's own wallet API is not paid over x402, so the merchant step (25 of 40). No fee schedule for the wallet, x402 signing, payouts or payment links was found, and card fees appear only through an authenticated command (0 of 20). Registering an Agent ID and creating payment links cost nothing and need no card per the README and the charge-agent guide, but the wallet sign-up at agentwallet.fluxapay.xyz could not be read, so whether opening a funded wallet needs a card is unchecked (10 of 20). `POST https://agentid.fluxapay.xyz/register` returns credentials with no human step, but the CLI marks it legacy, the default connection needs a browser approval, and every spend needs the owner's wallet and a mandate signed in a browser (10 of 20). Total 45." }, "scores": { "a": 80, "b": 45 } }, { "by": 19, "category": "schema", "leads": "circle-gateway-nanopayments", "name": "Schema \u0026 documentation", "reasons": { "a": "A public OpenAPI 3.0.3 file covers the five operations. It gives the 400 responses no body schema and attaches its Bearer scheme to no operation (23 of 25). llms.txt and a Markdown twin of every docs page (10). The docs say when to use this facilitator and when Circle's other one, and to call `settle` without `verify` in production (15 of 20). Transfer status and settle error reasons are enums and required fields are marked. `payload`, `extra` and `extensions` are open objects, and `pageSize` has no maximum (10 of 15). Every SDK method has a typed signature and an example, and 16 API error codes have a cause and a recovery step. The error reference says the validity window must be 3 days where the quickstart, the SDK and the live `minValiditySeconds` of 604800 say 7 (11 of 15). Paths are under `/v1`, the SDK follows semver and the release notes are dated. The npm package ships no changelog (11 of 15).", "b": "No OpenAPI file or reference for the wallet API was found; the README shows sample requests for five endpoints. The MCP server's 15 tools in the 0.6.0 source carry typed Zod input schemas, and the CLI's flags are documented in prose in the skill files and `--help`. The MCP server is the secondary surface and its npm release is 0.2.0, so 12 of 25. The skill and its 18 Markdown guides are written for agents, and AgentMarket's llms.txt describes the wallet's payment role (10). `connect_wallet`, `init_agent_id` and `create_intent_mandate` say when to use them and when not to, and the skill has a when-to-use table per capability, while the payment-link and status tools have one-line descriptions (12 of 20). Zod enums for validity, runtime, hosting and currency, a regex on payout amounts and strict objects, but the x402 requirement fields are plain strings and `outputSchema` is a free-form record (10 of 15). The README has an example for every MCP tool, the skills give CLI examples and output, and error codes are tabled for mandates, payouts, cards and connections (12 of 15). Semver on npm with 25 CLI versions and a version line in the skill, two git tags and no changelog (5 of 15). Total 61." }, "scores": { "a": 80, "b": 61 } }, { "by": 15, "category": "ergonomics", "leads": "circle-gateway-nanopayments", "name": "Agent ergonomics", "reasons": { "a": "The API is five operations and the buyer path is one `pay(url)` call. Transfer search takes `pageSize` (20 of 25). Cursor pagination with `pageAfter` and `pageBefore`, and filters by sender, recipient, nonce, network, status and date. A status filter needs a second filter since 26 August 2026 (17 of 20). Sixteen error codes with recovery steps, and typed SDK error messages (17 of 20). The nonce stops one authorisation being settled twice and a `completed` or `failed` state tells a caller when to stop. No idempotency key was found, and a failed payment needs a newly signed authorisation (13 of 20). The seller middleware needs one address and a price, and the buyer client a chain and a key. The only official SDK is TypeScript (8 of 15).", "b": "The MCP server has 15 tools with about 4,700 characters of descriptions, the 11 to 30 band (15). The CLI path loads SKILL.md (26.5 KB) and one of 18 guides per task, about 112 KB in all, with no read-only subset (no add-back, 15 of 25). `card transactions` takes page, limit, type and a time range, refunds take limit and offset, `received-records` and `recent-transactions` take a limit up to 100, and `market search` can be scoped to models or vendors; no cursor (12 of 20). Errors carry a `code`, `retryable`, `reconnect_required` and a `next_command` or `next_tool`, and card errors map to recovery hints, but the CLI exits only 0 or 1 and the MCP payment tools return the wallet API's raw error body without `isError` (14 of 20). A required `payout_id` idempotency key, `--biz-id` dedup and `--request-id` continuation on card operations, and the skill says not to initiate again to retry a payment. No `readOnlyHint` or `destructiveHint` on any MCP tool (12 of 20). Base USDC is the default network and asset, mandates default to 8 hours and the CLI installs in one command, but there is no SDK library and both packages are TypeScript (7 of 15). Total 60." }, "scores": { "a": 75, "b": 60 } }, { "by": 12, "category": "security", "leads": "circle-gateway-nanopayments", "name": "Security \u0026 auth", "reasons": { "a": "No API key. The buyer's EOA private key signs each payment, and each authorisation is bound to one amount, recipient, validity window and nonce. The same key controls the whole wallet, the SDK takes it as a plain config value, and smart contract accounts with their own policies are not supported (18 of 30). Only the deposited Gateway balance can be spent, and a client hook can abort a payment above a limit. No limit is set by default and none is enforced by the service (12 of 20). The amount comes from the seller's 402 response, which is untrusted. The docs show the spending-limit hook and give no other guidance. Circle's Gateway skill file says to ask the user before moving funds on mainnet (8 of 15). Transfers can be searched by address, nonce and date and each carries its batch transaction hash. No separate operator log was found (11 of 15). Audit reports by ChainSecurity and OtterSec are linked, one of them on batching, and a repository security policy names a HackerOne bug bounty programme. security.txt answered 404 and no certification was found on the pages read (15 of 20).", "b": "The agent holds an Agent ID, a token whose validity the owner picks from 1 hour to 1 year at browser approval, and a short-lived RS256 JWT refreshed from the token; `token_revoked` exists. Credentials sit in a 0600 JSON file or environment variables. The token is not scoped, since limits live in mandates, and legacy `init` tokens are described as not expiring. Agent VCs are audience-bound and rejected by FluxA's own endpoints. No secret travels in a URL (22 of 30). Every x402 payment needs a mandate the owner signs, with a limit, a validity and an optional host allowlist enforced by the wallet API, payouts need per-payout approval unless a mandate covers them, cards need a mandate and KYC, and linked-card mandates are scoped to one merchant. A payout mandate sets no payee allowlist that was documented, and the skill tells agents to request budgets for at least 100 calls by default (16 of 20). The wallet returns little third-party content itself, but the skill sends agents to third-party x402 APIs, ClawPI posts and a remote announcement.md with no guidance on treating them as untrusted, its description steers agents to paid APIs even when a free web search looks enough, and the daily check-in runs `npx -y @fluxa-pay/fluxa-wallet@latest` unpinned twice a day (4 of 15). `mandates` lists limit, spent and remaining, with `recent-transactions`, `received-records` and payout status by CLI, and the MCP server writes a local audit log; the wallet app's logs were not read (10 of 15). No SECURITY.md, disclosure policy, bug bounty or certification was found, and agentmarket.fluxapay.xyz has no security.txt; fluxapay.xyz's is unchecked (0 of 20). Total 52." }, "scores": { "a": 64, "b": 52 } } ], "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Circle", "b": "FluxA Technology Pte. Ltd.", "name": "Vendor" }, { "a": "https://gateway-api.circle.com", "b": "https://walletapi.fluxapay.xyz", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP, stdio", "name": "Transports" }, { "a": "None", "b": "OAuth or key", "name": "Auth" }, { "a": "Pay per use", "b": "Pay per use", "name": "Pricing" }, { "a": "payer tooling only", "b": "payer tooling only", "name": "x402" }, { "a": "Proprietary hosted service under the Circle Developer Terms. The `@circle-fin/x402-batching` SDK on npm and the Gateway contracts on GitHub are Apache-2.0", "b": "The CLI and MCP server source is Apache-2.0 (LICENSE file and both package.json files), though the README's last section says MIT. The hosted wallet service is closed, and no terms covering the wallet were found", "name": "Licence" }, { "a": "none", "b": "15", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-10-22", "b": "2026-11-06", "name": "Last release" }, { "a": "2026-09-16", "b": "no document linked", "name": "Terms last updated" }, { "a": "no date given", "b": "no document linked", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not read yet", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms restrict automated access" }, { "a": "yes", "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": "17k npm/wk", "b": "none", "name": "Popularity" }, { "a": "3.3/5 (4)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Circle Gateway Nanopayments scores 69.7 (B) on agent readiness against FluxA AI Wallet's 47 (D), and leads in every scored category.", "question": "Which is better for AI agents, Circle Gateway Nanopayments or FluxA AI Wallet?" }, { "answer": "Circle Gateway Nanopayments needs no key. FluxA AI Wallet takes an API key or an OAuth sign-in.", "question": "Do Circle Gateway Nanopayments and FluxA AI Wallet need an API key?" }, { "answer": "Yes. Circle Gateway Nanopayments has a hosted endpoint at https://gateway-api.circle.com and FluxA AI Wallet at https://walletapi.fluxapay.xyz.", "question": "Can an agent call Circle Gateway Nanopayments and FluxA AI Wallet without installing anything?" }, { "answer": "No open-source release is listed for Circle Gateway Nanopayments. FluxA AI Wallet is open source (The CLI and MCP server source is Apache-2.0 (LICENSE file and both package.json files), though the README's last section says MIT. The hosted wallet service is closed, and no terms covering the wallet were found).", "question": "Are Circle Gateway Nanopayments and FluxA AI Wallet open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 66 against 20", "Schema \u0026 documentation, 80 against 61", "Agent ergonomics, 75 against 60", "Security \u0026 auth, 64 against 52", "Payments \u0026 pricing, 80 against 45", "Maintenance \u0026 community, 77 against 66", "Transparency \u0026 trust, 73 against 32" ], "also": [ "No key needed to call it" ], "goodFor": "Sellers charging fractions of a cent per API call and agents making many small payments from one prefunded balance on EVM chains.", "slug": "circle-gateway-nanopayments", "watchFor": "No rate limit, 429 guidance or SLA was found for the Gateway API in the reviewed documentation" }, { "aheadOn": null, "also": [ "Runs on your own machine", "Open source", "No incidents deducted, where Circle Gateway Nanopayments loses 3 points for them" ], "goodFor": "An agent in a CLI-capable client that needs to pay x402 APIs, send USDC on Base or receive payments through links, inside budgets a person signs.", "slug": "fluxa-ai-wallet", "watchFor": "The published MCP package is 0.2.0 from 2 March 2026 with 13 tools, while the repository says 0.6.0 with 15" } ], "history": { "circle-gateway-nanopayments": [ { "causes": [ "evidence" ], "date": "2026-11-01", "delta": 2, "from": 67.7, "fromGrade": "B", "to": 69.7, "toGrade": "B" }, { "causes": [ "method" ], "date": "2026-10-27", "delta": 0.1, "from": 67.6, "fromGrade": "B", "to": 67.7, "toGrade": "B" } ], "fluxa-ai-wallet": null }, "job": { "capability": "payments.x402", "name": "x402 payments" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agentcard-vs-fluxa-ai-wallet.json", "title": "Agentcard vs FluxA AI Wallet", "url": "https://www.anchorterminal.com/compare/agentcard-vs-fluxa-ai-wallet" }, { "json": "https://www.anchorterminal.com/compare/atxp-vs-circle-gateway-nanopayments.json", "title": "ATXP vs Circle Gateway Nanopayments", "url": "https://www.anchorterminal.com/compare/atxp-vs-circle-gateway-nanopayments" }, { "json": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-skyfire.json", "title": "Circle Gateway Nanopayments vs Skyfire API + MCP", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-skyfire" }, { "json": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-tempo.json", "title": "Circle Gateway Nanopayments vs Tempo", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-tempo" }, { "json": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-termix.json", "title": "Circle Gateway Nanopayments vs TermiX AACP", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-termix" }, { "json": "https://www.anchorterminal.com/compare/circle-wallets-vs-fluxa-ai-wallet.json", "title": "Circle Wallets (Agent Wallets, Programmable Wallets) vs FluxA AI Wallet", "url": "https://www.anchorterminal.com/compare/circle-wallets-vs-fluxa-ai-wallet" }, { "json": "https://www.anchorterminal.com/compare/coinbase-cdp-agentkit-vs-fluxa-ai-wallet.json", "title": "Coinbase Developer Platform (Agentic Wallet, AgentKit, CDP MCP) vs FluxA AI Wallet", "url": "https://www.anchorterminal.com/compare/coinbase-cdp-agentkit-vs-fluxa-ai-wallet" }, { "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/circle-gateway-nanopayments-vs-nevermined.json", "title": "Circle Gateway Nanopayments vs Nevermined API + MCP", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-nevermined" }, { "json": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-payman.json", "title": "Circle Gateway Nanopayments vs Payman Genie MCP", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-payman" }, { "json": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-stripe-mcp.json", "title": "Circle Gateway Nanopayments vs Stripe API + MCP", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-stripe-mcp" }, { "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-ai-wallet-vs-kite-agent-passport.json", "title": "FluxA AI Wallet vs Kite Agent Passport", "url": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-kite-agent-passport" }, { "json": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-nevermined.json", "title": "FluxA AI Wallet vs Nevermined API + MCP", "url": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-nevermined" }, { "json": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-openfort.json", "title": "FluxA AI Wallet vs Openfort", "url": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-openfort" }, { "json": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-payman.json", "title": "FluxA AI Wallet vs Payman Genie MCP", "url": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-payman" }, { "json": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-privy.json", "title": "FluxA AI Wallet vs Privy Wallets (server wallets, agent wallets, policy engine)", "url": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-privy" }, { "json": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-sponge-wallet.json", "title": "FluxA AI Wallet vs Sponge Wallet", "url": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-sponge-wallet" }, { "json": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-turnkey-agentic-wallets.json", "title": "FluxA AI Wallet vs Turnkey Agentic Wallets", "url": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-turnkey-agentic-wallets" }, { "json": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-self-agent-vault.json", "title": "FluxA AI Wallet vs Agent Vault by Self", "url": "https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-self-agent-vault" } ], "panel": null, "scores": [ { "by": 46, "circle-gateway-nanopayments": 66, "edge": "circle-gateway-nanopayments", "fluxa-ai-wallet": 20, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 19, "circle-gateway-nanopayments": 80, "edge": "circle-gateway-nanopayments", "fluxa-ai-wallet": 61, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 15, "circle-gateway-nanopayments": 75, "edge": "circle-gateway-nanopayments", "fluxa-ai-wallet": 60, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 12, "circle-gateway-nanopayments": 64, "edge": "circle-gateway-nanopayments", "fluxa-ai-wallet": 52, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 35, "circle-gateway-nanopayments": 80, "edge": "circle-gateway-nanopayments", "fluxa-ai-wallet": 45, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 11, "circle-gateway-nanopayments": 77, "edge": "circle-gateway-nanopayments", "fluxa-ai-wallet": 66, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 41, "circle-gateway-nanopayments": 73, "edge": "circle-gateway-nanopayments", "fluxa-ai-wallet": 32, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Circle Gateway Nanopayments scores 69.7 (B) on agent readiness against FluxA AI Wallet's 47 (D), and leads in every scored category. Both do x402 payments.", "tasks": null, "tutorials": [], "verdicts": { "circle-gateway-nanopayments": "A buyer with an EOA key and a seller with a wallet address can transact with no account or API key, and the settle call returns 16 documented error codes with recovery steps. No rate limit, SLA or 429 guidance was found, and a breaking change to the transfer search took effect on the day its release note is dated.", "fluxa-ai-wallet": "Every spend runs against a mandate the owner signs in a browser, with a budget, a validity window and an optional host allowlist, and payouts need approval or a mandate. The published MCP package is 0.2.0 from March 2026 against 0.6.0 in the repository, and no status page, fee schedule, wallet terms or custody statement was found." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-ai-wallet", "json": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-ai-wallet.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-ai-wallet.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-ai-wallet.min.md" }, "markdown": "Circle Gateway Nanopayments scores 69.7 (B) on agent readiness against FluxA AI Wallet's 47 (D), and leads in every scored category. Both do x402 payments.\n\n- Circle Gateway Nanopayments: grade B, 69.7/100, rank #228 of 1513. Markdown https://www.anchorterminal.com/tools/circle-gateway-nanopayments.md · JSON https://www.anchorterminal.com/api/v1/tools/circle-gateway-nanopayments.json\n- FluxA AI Wallet: grade D, 47/100, rank #1164 of 1513. Markdown https://www.anchorterminal.com/tools/fluxa-ai-wallet.md · JSON https://www.anchorterminal.com/api/v1/tools/fluxa-ai-wallet.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- Best agent wallets and spending controls: https://www.anchorterminal.com/best/agent-wallets/index.md\n- All 77 wallets comparisons: https://www.anchorterminal.com/compare/agent-wallets/index.md\n\n## Which one, for what\n\n### Circle Gateway Nanopayments (B)\n\nGood for: Sellers charging fractions of a cent per API call and agents making many small payments from one prefunded balance on EVM chains.\n\nAhead on:\n- Reliability, 66 against 20\n- Schema \u0026 documentation, 80 against 61\n- Agent ergonomics, 75 against 60\n- Security \u0026 auth, 64 against 52\n- Payments \u0026 pricing, 80 against 45\n- Maintenance \u0026 community, 77 against 66\n- Transparency \u0026 trust, 73 against 32\n\nAlso in its favour:\n- No key needed to call it\n\nWatch for: No rate limit, 429 guidance or SLA was found for the Gateway API in the reviewed documentation\n\n### FluxA AI Wallet (D)\n\nGood for: An agent in a CLI-capable client that needs to pay x402 APIs, send USDC on Base or receive payments through links, inside budgets a person signs.\n\nAlso in its favour:\n- Runs on your own machine\n- Open source\n- No incidents deducted, where Circle Gateway Nanopayments loses 3 points for them\n\nWatch for: The published MCP package is 0.2.0 from 2 March 2026 with 13 tools, while the repository says 0.6.0 with 15\n\n\n## Why the edge\n\n### Reliability: Circle Gateway Nanopayments +46\n\n- Circle Gateway Nanopayments (66): Graded as a hosted service on gateway-api.circle.com. status.circle.com is a Statuspage with Circle Gateway components for each chain, mainnet and testnet (20). The history pages, read on 1 November 2026, list every incident from June to 31 October. From 3 August none names Gateway or a Gateway component. They cover USDC mints on single chains, CCTP attestations, xReserve, Wallets and testnets, and the two HyperEVM incidents opened name only CCTP and USDC components. The last Gateway incident was testnet only, 29 June to 2 July, outside the window. A clean record (30). No rate limit with numbers was found for the Gateway API, and an unauthenticated call to `/v1/x402/supported` carried no rate-limit headers (0). No 429 or `Retry-After` guidance was found. Each authorisation carries a unique nonce, a repeat returns `nonce_already_used`, and the error reference says to retry `unexpected_error` (6 of 15). No SLA was found, and the developer terms allow changes without prior notice (0). The release notes record the mainnet launch on 29 April 2026 and the pages read carry no beta label (10).\n- FluxA AI Wallet (20): Graded with the hosted lines, because signing, mandates and approvals all run on FluxA's wallet API and the CLI and MCP server only wrap it, as kite-agent-passport and kane-cli were read. No status page was found in the repository, the skills or AgentMarket's pages. fluxapay.xyz and the wallet and docs hosts could not be read, so a status page there is unchecked and scored absent (0). With no readable history the record takes the default (5). No rate limit with numbers was found (0). The connection service treats 429 `slow_down` as wait and poll and marks errors `retryable`, the skill says a 503 means retry shortly, payouts require a caller-chosen `payout_id` that returns the existing payout on a repeat, `--biz-id` rejects a duplicate with 409, and card create and recharge resume with `--request-id` instead of paying again. No Retry-After or backoff schedule is documented for the wallet API (10 of 15). No SLA was found (0). No beta label was found on the wallet in what was read, but both packages are at 0.x, agent cards sit behind a waitlist and the wallet site was unread (5 of 10). Total 20.\n\n### Transparency \u0026 trust: Circle Gateway Nanopayments +41\n\n- Circle Gateway Nanopayments (73): The SDK is Apache-2.0 on npm and the Gateway contracts are Apache-2.0 on GitHub. The API service and the enclave code are closed, under clear developer terms (22 of 30). The privacy policy of 16 September 2026 lists transaction and blockchain data among what is collected and keeps data as long as necessary, with no periods. The service terms link a DPA dated 2022. Nothing found says what the Gateway API logs about a payment (17 of 30). The developer terms promise reasonable efforts to announce the end of support for a version and also let Circle modify or discontinue Gateway without prior notice. The one breaking change found was noted on the day it took effect (6 of 20). A sub-processor list, last updated 22 December 2025, names each processor with its purpose and country (14 of 20).\n- FluxA AI Wallet (32): The CLI and MCP server source is Apache-2.0 per the LICENSE file and both package.json files, while the README's last section says MIT. The hosted wallet is closed, and no terms covering it were found. AgentMarket's terms describe only the marketplace (15 of 30). AgentMarket's privacy policy of 14 January 2026 names Stripe and model providers and gives no retention periods, and it does not mention wallet addresses, KYC profiles, card data or payouts, which the CLI collects or handles. The wallet's own privacy policy was unreachable (5 of 30). The README marks `init` and `link-wallet` as legacy but still supported, and the skill pins a minimum CLI version; no deprecation policy or dated notice was found (3 of 20). Stripe is the only provider named; no card issuer, KYC provider, custody provider or data location is named. The CLI and MCP code send no telemetry (3 of 20). Total 26.\n\n### Payments \u0026 pricing: Circle Gateway Nanopayments +35\n\n- Circle Gateway Nanopayments (80): 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. Circle's own API is not paid over x402. Sellers accept x402 through Circle's middleware and facilitator, so the merchant step. An unpaid call to `GET /v1/x402/supported` on 1 November returned 200 with 12 mainnet networks, each x402 version 2, scheme `exact` and `GatewayWalletBatched` (25 of 40). The fee page is public with no login, 0.005% on crosschain withdrawals plus a gas fee by chain, and the docs say a nanopayment costs neither party a fee. No price list states the nanopayment fee as a figure, and the terms say fees are communicated through the API and may change (15 of 20). Testnets run on faucet USDC with no account or card, and mainnet has no subscription (20). An agent holding an EOA key and USDC can deposit and pay with no signup, and a seller needs only an address (20).\n- FluxA AI Wallet (45): 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. The wallet pays x402 as a buyer and its payment links can be paid over x402 so another agent pays the holder, as sponge-wallet's payment links were read. FluxA's own wallet API is not paid over x402, so the merchant step (25 of 40). No fee schedule for the wallet, x402 signing, payouts or payment links was found, and card fees appear only through an authenticated command (0 of 20). Registering an Agent ID and creating payment links cost nothing and need no card per the README and the charge-agent guide, but the wallet sign-up at agentwallet.fluxapay.xyz could not be read, so whether opening a funded wallet needs a card is unchecked (10 of 20). `POST https://agentid.fluxapay.xyz/register` returns credentials with no human step, but the CLI marks it legacy, the default connection needs a browser approval, and every spend needs the owner's wallet and a mandate signed in a browser (10 of 20). Total 45.\n\n### Schema \u0026 documentation: Circle Gateway Nanopayments +19\n\n- Circle Gateway Nanopayments (80): A public OpenAPI 3.0.3 file covers the five operations. It gives the 400 responses no body schema and attaches its Bearer scheme to no operation (23 of 25). llms.txt and a Markdown twin of every docs page (10). The docs say when to use this facilitator and when Circle's other one, and to call `settle` without `verify` in production (15 of 20). Transfer status and settle error reasons are enums and required fields are marked. `payload`, `extra` and `extensions` are open objects, and `pageSize` has no maximum (10 of 15). Every SDK method has a typed signature and an example, and 16 API error codes have a cause and a recovery step. The error reference says the validity window must be 3 days where the quickstart, the SDK and the live `minValiditySeconds` of 604800 say 7 (11 of 15). Paths are under `/v1`, the SDK follows semver and the release notes are dated. The npm package ships no changelog (11 of 15).\n- FluxA AI Wallet (61): No OpenAPI file or reference for the wallet API was found; the README shows sample requests for five endpoints. The MCP server's 15 tools in the 0.6.0 source carry typed Zod input schemas, and the CLI's flags are documented in prose in the skill files and `--help`. The MCP server is the secondary surface and its npm release is 0.2.0, so 12 of 25. The skill and its 18 Markdown guides are written for agents, and AgentMarket's llms.txt describes the wallet's payment role (10). `connect_wallet`, `init_agent_id` and `create_intent_mandate` say when to use them and when not to, and the skill has a when-to-use table per capability, while the payment-link and status tools have one-line descriptions (12 of 20). Zod enums for validity, runtime, hosting and currency, a regex on payout amounts and strict objects, but the x402 requirement fields are plain strings and `outputSchema` is a free-form record (10 of 15). The README has an example for every MCP tool, the skills give CLI examples and output, and error codes are tabled for mandates, payouts, cards and connections (12 of 15). Semver on npm with 25 CLI versions and a version line in the skill, two git tags and no changelog (5 of 15). Total 61.\n\n### Agent ergonomics: Circle Gateway Nanopayments +15\n\n- Circle Gateway Nanopayments (75): The API is five operations and the buyer path is one `pay(url)` call. Transfer search takes `pageSize` (20 of 25). Cursor pagination with `pageAfter` and `pageBefore`, and filters by sender, recipient, nonce, network, status and date. A status filter needs a second filter since 26 August 2026 (17 of 20). Sixteen error codes with recovery steps, and typed SDK error messages (17 of 20). The nonce stops one authorisation being settled twice and a `completed` or `failed` state tells a caller when to stop. No idempotency key was found, and a failed payment needs a newly signed authorisation (13 of 20). The seller middleware needs one address and a price, and the buyer client a chain and a key. The only official SDK is TypeScript (8 of 15).\n- FluxA AI Wallet (60): The MCP server has 15 tools with about 4,700 characters of descriptions, the 11 to 30 band (15). The CLI path loads SKILL.md (26.5 KB) and one of 18 guides per task, about 112 KB in all, with no read-only subset (no add-back, 15 of 25). `card transactions` takes page, limit, type and a time range, refunds take limit and offset, `received-records` and `recent-transactions` take a limit up to 100, and `market search` can be scoped to models or vendors; no cursor (12 of 20). Errors carry a `code`, `retryable`, `reconnect_required` and a `next_command` or `next_tool`, and card errors map to recovery hints, but the CLI exits only 0 or 1 and the MCP payment tools return the wallet API's raw error body without `isError` (14 of 20). A required `payout_id` idempotency key, `--biz-id` dedup and `--request-id` continuation on card operations, and the skill says not to initiate again to retry a payment. No `readOnlyHint` or `destructiveHint` on any MCP tool (12 of 20). Base USDC is the default network and asset, mandates default to 8 hours and the CLI installs in one command, but there is no SDK library and both packages are TypeScript (7 of 15). Total 60.\n\n### Security \u0026 auth: Circle Gateway Nanopayments +12\n\n- Circle Gateway Nanopayments (64): No API key. The buyer's EOA private key signs each payment, and each authorisation is bound to one amount, recipient, validity window and nonce. The same key controls the whole wallet, the SDK takes it as a plain config value, and smart contract accounts with their own policies are not supported (18 of 30). Only the deposited Gateway balance can be spent, and a client hook can abort a payment above a limit. No limit is set by default and none is enforced by the service (12 of 20). The amount comes from the seller's 402 response, which is untrusted. The docs show the spending-limit hook and give no other guidance. Circle's Gateway skill file says to ask the user before moving funds on mainnet (8 of 15). Transfers can be searched by address, nonce and date and each carries its batch transaction hash. No separate operator log was found (11 of 15). Audit reports by ChainSecurity and OtterSec are linked, one of them on batching, and a repository security policy names a HackerOne bug bounty programme. security.txt answered 404 and no certification was found on the pages read (15 of 20).\n- FluxA AI Wallet (52): The agent holds an Agent ID, a token whose validity the owner picks from 1 hour to 1 year at browser approval, and a short-lived RS256 JWT refreshed from the token; `token_revoked` exists. Credentials sit in a 0600 JSON file or environment variables. The token is not scoped, since limits live in mandates, and legacy `init` tokens are described as not expiring. Agent VCs are audience-bound and rejected by FluxA's own endpoints. No secret travels in a URL (22 of 30). Every x402 payment needs a mandate the owner signs, with a limit, a validity and an optional host allowlist enforced by the wallet API, payouts need per-payout approval unless a mandate covers them, cards need a mandate and KYC, and linked-card mandates are scoped to one merchant. A payout mandate sets no payee allowlist that was documented, and the skill tells agents to request budgets for at least 100 calls by default (16 of 20). The wallet returns little third-party content itself, but the skill sends agents to third-party x402 APIs, ClawPI posts and a remote announcement.md with no guidance on treating them as untrusted, its description steers agents to paid APIs even when a free web search looks enough, and the daily check-in runs `npx -y @fluxa-pay/fluxa-wallet@latest` unpinned twice a day (4 of 15). `mandates` lists limit, spent and remaining, with `recent-transactions`, `received-records` and payout status by CLI, and the MCP server writes a local audit log; the wallet app's logs were not read (10 of 15). No SECURITY.md, disclosure policy, bug bounty or certification was found, and agentmarket.fluxapay.xyz has no security.txt; fluxapay.xyz's is unchecked (0 of 20). Total 52.\n\n## Score by category\n\n| Category | Weight | Circle Gateway Nanopayments | FluxA AI Wallet | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 66 | 20 | Circle Gateway Nanopayments +46 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 80 | 61 | Circle Gateway Nanopayments +19 |\n| Agent ergonomics | 13% (16.2 this run) | 75 | 60 | Circle Gateway Nanopayments +15 |\n| Security \u0026 auth | 14% (17.5 this run) | 64 | 52 | Circle Gateway Nanopayments +12 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 80 | 45 | Circle Gateway Nanopayments +35 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 77 | 66 | Circle Gateway Nanopayments +11 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 73 | 32 | Circle Gateway Nanopayments +41 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **69.7 · B** | **47 · D** | |\n\n## Facts side by side\n\n| Fact | Circle Gateway Nanopayments | FluxA AI Wallet |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Circle | FluxA Technology Pte. Ltd. |\n| Hosted endpoint | `https://gateway-api.circle.com` | `https://walletapi.fluxapay.xyz` |\n| Transports | HTTP | HTTP, stdio |\n| Auth | None | OAuth or key |\n| Pricing | Pay per use | Pay per use |\n| x402 | payer tooling only | payer tooling only |\n| Licence | Proprietary hosted service under the Circle Developer Terms. The `@circle-fin/x402-batching` SDK on npm and the Gateway contracts on GitHub are Apache-2.0 | The CLI and MCP server source is Apache-2.0 (LICENSE file and both package.json files), though the README's last section says MIT. The hosted wallet service is closed, and no terms covering the wallet were found |\n| Tools exposed | none | 15 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-10-22 | 2026-11-06 |\n| Terms last updated | 2026-09-16 | no document linked |\n| Privacy policy last updated | no date given | no document linked |\n| Customer content may train models | not found in the text | not read yet |\n| Terms restrict automated access | not found in the text | not read yet |\n| Terms restrict benchmarking | yes | 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 | 17k npm/wk | none |\n| Agent reviews | 3.3/5 (4) | none |\n\n## How the scores have moved\n\n### Circle Gateway Nanopayments\n\n- +2.0 on 1 November 2026: new evidence\n- +0.1 on 27 October 2026: checklist\n\n### FluxA AI Wallet\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Circle Gateway Nanopayments.** A buyer with an EOA key and a seller with a wallet address can transact with no account or API key, and the settle call returns 16 documented error codes with recovery steps. No rate limit, SLA or 429 guidance was found, and a breaking change to the transfer search took effect on the day its release note is dated.\n\n**FluxA AI Wallet.** Every spend runs against a mandate the owner signs in a browser, with a budget, a validity window and an optional host allowlist, and payouts need approval or a mandate. The published MCP package is 0.2.0 from March 2026 against 0.6.0 in the repository, and no status page, fee schedule, wallet terms or custody statement was found.\n\n## Before you call either\n\n### Circle Gateway Nanopayments\n\n1. Deposit on the chain you will pay from. `GatewayClient` scopes deposits and payments to its configured chain, and deposits on Base, Ethereum, Arbitrum or OP take about 13 to 19 minutes\n2. Set `validBefore` at least 7 days ahead when signing by hand. The SDK uses 604900 seconds\n3. Register `onBeforePaymentCreation` and abort above a cap. `pay(url)` signs whatever amount the seller's 402 response asks for\n4. Call `settle` without a prior `verify`. Balance and nonce checks happen only at settle time\n5. Pass `from`, `to` or `nonce` whenever you filter transfers by `status`, and wait for `completed` before a dependent onchain step\n\n### FluxA AI Wallet\n\n1. Run `fluxa-wallet status` first. If `configured` and `wallet_linked` are true, skip `connect`; otherwise show the `authorization_url` and wait with `connect-status --wait 100`\n2. On `token_expired` or `token_revoked`, reconnect with the same `--agent-id`. Never run `init` to recover, which creates a new identity\n3. Pass a unique `--id` on every `payout` and reuse it on retry; a repeat returns the existing payout instead of paying twice\n4. Check `fluxa-wallet mandates` for a signed mandate with enough remaining budget before creating one, and size new budgets to the task\n5. Install the CLI from npm, not the MCP package, whose npm release 0.2.0 lacks `connect_wallet` and `get_wallet_connection`\n\n## Questions\n\n### Which is better for AI agents, Circle Gateway Nanopayments or FluxA AI Wallet?\n\nCircle Gateway Nanopayments scores 69.7 (B) on agent readiness against FluxA AI Wallet's 47 (D), and leads in every scored category.\n\n### Do Circle Gateway Nanopayments and FluxA AI Wallet need an API key?\n\nCircle Gateway Nanopayments needs no key. FluxA AI Wallet takes an API key or an OAuth sign-in.\n\n### Can an agent call Circle Gateway Nanopayments and FluxA AI Wallet without installing anything?\n\nYes. Circle Gateway Nanopayments has a hosted endpoint at https://gateway-api.circle.com and FluxA AI Wallet at https://walletapi.fluxapay.xyz.\n\n### Are Circle Gateway Nanopayments and FluxA AI Wallet open source?\n\nNo open-source release is listed for Circle Gateway Nanopayments. FluxA AI Wallet is open source (The CLI and MCP server source is Apache-2.0 (LICENSE file and both package.json files), though the README's last section says MIT. The hosted wallet service is closed, and no terms covering the wallet were found).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-ai-wallet.json, and with the fewest tokens: https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-ai-wallet.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"circle-gateway-nanopayments\", \"b\": \"fluxa-ai-wallet\"}`. From a terminal: `anchor compare circle-gateway-nanopayments fluxa-ai-wallet`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/circle-gateway-nanopayments.json and https://www.anchorterminal.com/api/v1/tools/fluxa-ai-wallet.json\n\n## Other comparisons with Circle Gateway Nanopayments or FluxA AI Wallet\n\n- [Agentcard vs FluxA AI Wallet](https://www.anchorterminal.com/compare/agentcard-vs-fluxa-ai-wallet.md)\n- [ATXP vs Circle Gateway Nanopayments](https://www.anchorterminal.com/compare/atxp-vs-circle-gateway-nanopayments.md)\n- [Circle Gateway Nanopayments vs Skyfire API + MCP](https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-skyfire.md)\n- [Circle Gateway Nanopayments vs Tempo](https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-tempo.md)\n- [Circle Gateway Nanopayments vs TermiX AACP](https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-termix.md)\n- [Circle Wallets (Agent Wallets, Programmable Wallets) vs FluxA AI Wallet](https://www.anchorterminal.com/compare/circle-wallets-vs-fluxa-ai-wallet.md)\n- [Coinbase Developer Platform (Agentic Wallet, AgentKit, CDP MCP) vs FluxA AI Wallet](https://www.anchorterminal.com/compare/coinbase-cdp-agentkit-vs-fluxa-ai-wallet.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- [Circle Gateway Nanopayments vs Nevermined API + MCP](https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-nevermined.md)\n- [Circle Gateway Nanopayments vs Payman Genie MCP](https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-payman.md)\n- [Circle Gateway Nanopayments vs Stripe API + MCP](https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-stripe-mcp.md)\n- [FluxA AgentMarket vs FluxA AI Wallet](https://www.anchorterminal.com/compare/fluxa-agentmarket-vs-fluxa-ai-wallet.md)\n- [FluxA AI Wallet vs Kite Agent Passport](https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-kite-agent-passport.md)\n- [FluxA AI Wallet vs Nevermined API + MCP](https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-nevermined.md)\n- [FluxA AI Wallet vs Openfort](https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-openfort.md)\n- [FluxA AI Wallet vs Payman Genie MCP](https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-payman.md)\n- [FluxA AI Wallet vs Privy Wallets (server wallets, agent wallets, policy engine)](https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-privy.md)\n- [FluxA AI Wallet vs Sponge Wallet](https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-sponge-wallet.md)\n- [FluxA AI Wallet vs Turnkey Agentic Wallets](https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-turnkey-agentic-wallets.md)\n- [FluxA AI Wallet vs Agent Vault by Self](https://www.anchorterminal.com/compare/fluxa-ai-wallet-vs-self-agent-vault.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": "Circle Gateway Nanopayments vs FluxA AI Wallet", "url": "" } ], "description": "Circle Gateway Nanopayments scores 69.7 (B) to FluxA AI Wallet's 47 (D) for x402 payments. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Circle Gateway Nanopayments B 69.7", "FluxA AI Wallet D 47", "scores" ], "h1": "Circle Gateway Nanopayments vs FluxA AI Wallet", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/circle-gateway-nanopayments-vs-fluxa-ai-wallet", "published": "2026-10-01", "section": "tools", "title": "Circle Gateway Nanopayments vs FluxA AI Wallet for AI agents (2026)", "toc": null, "updated": "2026-11-07", "url": "https://www.anchorterminal.com/compare/circle-gateway-nanopayments-vs-fluxa-ai-wallet" }, "tokens": { "markdown": 6450, "slim": 1280 }, "version": 1 }