{ "data": { "a": { "slug": "adyen-mcp-server", "name": "Adyen MCP server", "vendor": "Adyen N.V.", "vendorUrl": "https://www.adyen.com", "kind": "mcp", "category": "payment-platforms", "summary": "Adyen's official MCP server lets an AI client call Adyen's Checkout, Management, Legal Entity Management and Balance Platform APIs with a merchant's API key. It runs locally over stdio through `npx @adyen/mcp` and is labelled alpha.", "url": "https://www.anchorterminal.com/tools/adyen-mcp-server", "markdownUrl": "https://www.anchorterminal.com/tools/adyen-mcp-server.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/adyen-mcp-server.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/adyen-mcp-server.json", "repo": "https://github.com/Adyen/adyen-mcp", "license": "MIT for the server. The Adyen APIs it calls are a closed service under a merchant agreement and the Adyen Terms and Conditions", "transports": [ "stdio" ], "packages": [ { "registry": "npm", "name": "@adyen/mcp" } ], "auth": "api-key", "authNotes": "The server needs an Adyen API key, read from `ADYEN_API_KEY` or the `--adyenApiKey` flag, and sends it to Adyen through `@adyen/api-library`. A person creates the key in the Customer Area under Developers, API credentials. Each credential has roles that set what it may do, and a company-level credential reaches every linked merchant account. Generating a new key leaves the old one active for 24 hours. The README lists 16 roles for the full tool set and advises a new credential used only for the server, with roles cut to the tools in use.", "pricing": "usage", "pricingNotes": "The server is free and MIT. Adyen charges for live payments, a fixed processing fee of $0.13 per transaction plus a fee set by the payment method, with no setup or monthly fee per the pricing page. Many methods are listed at interchange plus 0.60%. The pricing FAQ says a minimum invoice applies depending on industry or business model, through sales. A developer test account is free through a signup form, and Adyen says it does not guarantee approval as a customer (checked 2026-10-09).", "priceSummary": "$0.13 / tx", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the MCP docs page, the repository or the pricing page (checked 2026-10-09).", "endpoints": [] }, "toolCount": 38, "popularity": { "githubStars": 27, "npmWeekly": 168, "pypiWeekly": null, "asOf": "2026-10-09" }, "docsUrl": "https://docs.adyen.com/development-resources/mcp-server", "llmsTxt": "https://docs.adyen.com/llms.txt", "capabilities": [ "payments.checkout", "payments.card" ], "tags": [ "official", "local", "open-source", "mcp", "api-key", "sandbox", "alpha", "typescript", "llms-txt", "status-page" ], "lastRelease": "2026-08-24", "graded": true, "anchor": { "graded": true, "score": 60.3, "grade": "C", "agentReady": false, "rank": 471, "ranked": true, "rankOf": 842, "categoryRank": 5, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 56, "maintenance": 42, "payments": 35, "reliability": 65, "schema": 73, "security": 63, "transparency": 83 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-09" }, "negative": 0, "verdict": "All 38 tools carry read-only, destructive and idempotent annotations, and `--tools` loads a subset under an API credential limited by roles. The README labels the server alpha, `refund_payment` and the other POST tools send no idempotency key, and failures come back as plain text without an error flag.", "bestFor": "An Adyen merchant's developer or operations staff who want an assistant to create payment links and sessions, look up terminals, webhooks, users and credentials, and change terminal settings, with a person watching writes.", "strengths": [ "All 38 tools carry `readOnlyHint`, `destructiveHint` and `idempotentHint`, and a test asserts every tool is classified (27 read-only, 11 writes, 6 marked destructive)", "`--tools` loads a named subset, and the README advises a dedicated API credential whose roles match only the tools in use", "The server defaults to Adyen's test environment, and live use needs both `--env=LIVE` and the account's live URL prefix", "MIT source with four test files, CodeQL and Renovate, published to npm from GitHub Actions with a provenance attestation", "Adyen's Customer Area keeps API logs of every request and response for 30 days, which cover calls the server makes" ], "weaknesses": [ "The README is headed alpha, the package is at 0.6.0, and the server reports itself as version 0.4.0", "`refund_payment`, `cancel_payment` and `create_payment_links` send no `idempotency-key` header, although Adyen's API accepts one on POST requests", "Tool failures return as text such as `Failed to refund payment. Error: ...` without `isError`, and no tool reads a payment's refunds", "The `refund_payment` description names `paymentPspReference` while the schema field is `pspReference`, and omits the required `reference`", "One release in the 90 days to 9 October 2026, and the docs page, last modified 11 June 2025, still passes the key on the command line" ], "agentNotes": [ "Set `ADYEN_API_KEY` in the environment and start with `npx -y @adyen/mcp --env=TEST`. The `--adyenApiKey` flag in the docs page puts the key in the process list", "Pass `--tools=` with only the tool names the task needs. The default loads all 38, and the terminal settings schema alone is about 29 KB of source", "Call `refund_payment` with `pspReference`, `currency`, `value`, `merchantAccount` and `reference`. The description's `paymentPspReference` is not the field name", "Treat a `Failed to ...` reply from a write tool as outcome unknown, not as failure. Do not repeat a refund without checking the Customer Area or the REFUND webhook", "Give amounts in minor units (1099 for 10.99 EUR). Live use needs `--env=LIVE --livePrefix=` with the prefix from the live Customer Area" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 60.3 } ], "editorialScores": { "ergonomics": 56, "maintenance": 42, "payments": 35, "reliability": 65, "schema": 73, "security": 63, "transparency": 72 }, "provenanceScore": 93 }, "connect": { "install": "npx -y @adyen/mcp --env=TEST", "config": { "servers": { "adyen-mcp-server": { "args": [ "-y", "@adyen/mcp", "--env=TEST" ], "command": "npx", "env": { "ADYEN_API_KEY": "${ADYEN_API_KEY}" }, "type": "stdio" } } } }, "letme": { "capability": "https://letme.dev/payments.checkout", "tool": "https://letme.dev/adyen-mcp-server" }, "area": "payments", "unitPrices": [ { "item": "Adyen processing fee, added to each payment method's own fee", "unit": "tx", "usd": 0.13 } ], "provenance": { "legalEntity": "Adyen N.V.", "domain": "adyen.com", "domainRegistered": "2006-11-05", "endpointOnVendorDomain": true, "terms": "https://www.adyen.com/legal/adyen-terms-and-conditions", "privacy": "https://www.adyen.com/privacy-policy", "statusPage": "https://status.adyen.com", "changelog": "https://github.com/Adyen/adyen-mcp/releases", "securityTxt": "expired", "checked": "2026-10-09", "notes": [ "The Adyen Terms and Conditions (last update 1 November 2023) supplement the merchant agreement and name Adyen N.V., Dutch Chamber of Commerce number 34259528, Simon Carmiggeltstraat 6-50, Amsterdam. The server's source is MIT.", "The privacy statement (version of 4 August 2025) covers processing where Adyen is the data controller. Adyen publishes a sub-processor list last updated 1 July 2026 at https://www.adyen.com/legal/list-of-adyen-subprocessors.", "The server runs on the owner's machine and calls Adyen's API hosts through `@adyen/api-library`. There is no hosted MCP endpoint.", "www.adyen.com/.well-known/security.txt carries `Expires: 2025-12-31T22:59:00.000Z`, so it had expired on the day. It names responsibledisclosure@adyen.com and the responsible disclosure policy.", "status.adyen.com showed 99.999% uptime for the last 30 days. Its component list and incident history are drawn by script and were not read.", "RDAP for adyen.com gives a registration date of 2006-11-05." ], "score": 93 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/adyen-mcp-server.json", "live": { "slug": "adyen-mcp-server", "vendorStatus": { "page": "https://status.adyen.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-09T07:57:34.759368723Z" }, "updatedAt": "2026-10-09T07:57:34.759368723Z" } }, "answer": "Crossmint API + Docs MCP scores 67.1 (B) on agent readiness against Adyen MCP server's 60.3 (C), and leads in 4 of 7 scored categories. Adyen MCP server leads on reliability.", "b": { "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": 67.1, "grade": "B", "agentReady": false, "rank": 241, "ranked": true, "rankOf": 842, "categoryRank": 4, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 71, "maintenance": 85, "payments": 50, "reliability": 53, "schema": 71, "security": 73, "transparency": 80 }, "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.", "bestFor": "Products that let agents spend, especially where a user wants a capped card or a capped stablecoin wallet for an agent, or an agent that buys from ordinary merchant sites.", "strengths": [ "Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain", "Scoped server and client API keys, with each operation's required scope named in the spec", "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": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 67.1 } ], "editorialScores": { "ergonomics": 71, "maintenance": 85, "payments": 50, "reliability": 53, "schema": 71, "security": 73, "transparency": 65 }, "provenanceScore": 95 }, "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": 95 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/crossmint.json", "live": { "slug": "crossmint", "probe": { "target": "https://www.crossmint.com/api", "method": "get", "lastAt": "2026-10-09T11:46:26.158711948Z", "lastOk": true, "lastStatus": 404, "lastMs": 189, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 189, "p95ms24h": 458, "samples24h": 259, "samples30d": 2311, "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": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 125, "ok": 125 } ] }, "vendorStatus": { "page": "https://status.crossmint.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-09T07:57:46.592429784Z" }, "versions": [ { "registry": "npm", "name": "@crossmint/client-sdk-react-ui", "version": "4.9.1", "seenAt": "2026-10-08T16:07:33.111745668Z" }, { "registry": "npm", "name": "@crossmint/wallets-sdk", "version": "1.20.0", "seenAt": "2026-10-08T16:07:29.616686357Z" } ], "githubStars": 52, "npmWeekly": 55214, "securityTxt": { "url": "https://crossmint.com/.well-known/security.txt", "state": "valid", "checkedAt": "2026-10-08T15:38:59.926187177Z" }, "llmsTxt": { "url": "https://docs.crossmint.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:17.654675664Z" }, "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": "2026-10-08T18:18:36.135539064Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "9586f8e8a1d3" }, { "url": "https://www.crossmint.com/pricing", "kind": "pricing", "status": 304, "checkedAt": "2026-10-08T18:27:22.44754973Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "dffec4faf7a5" }, { "url": "https://www.crossmint.com/legal/privacy-policy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-08T18:27:17.832026147Z", "changedAt": "2026-10-02T15:26:08.112583044Z", "fingerprint": "73ab07afabce" }, { "url": "https://www.crossmint.com/legal/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:27:20.000699241Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "869ee89b903b" } ], "updatedAt": "2026-10-09T11:46:26.158711948Z" } }, "facts": [ { "a": "MCP server", "b": "HTTP API", "name": "Kind" }, { "a": "Adyen N.V.", "b": "Crossmint", "name": "Vendor" }, { "a": "no (local only)", "b": "https://www.crossmint.com/api", "name": "Hosted endpoint" }, { "a": "stdio", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Pay per use", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "payer tooling only", "name": "x402" }, { "a": "MIT for the server. The Adyen APIs it calls are a closed service under a merchant agreement and the Adyen Terms and Conditions", "b": "Apache-2.0", "name": "Licence" }, { "a": "38", "b": "1", "name": "Tools exposed" }, { "a": "yes", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-08-24", "b": "2026-10-01", "name": "Last release" }, { "a": "2023-11-01", "b": "2026-07-01", "name": "Terms last updated" }, { "a": "2025-08-04", "b": "2026-09-21", "name": "Privacy policy last updated" }, { "a": "yes", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "27 stars, 168 npm/wk", "b": "52 stars, 40k npm/wk", "name": "Popularity" }, { "a": "none", "b": "3.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Crossmint API + Docs MCP scores 67.1 (B) on agent readiness against Adyen MCP server's 60.3 (C), and leads in 4 of 7 scored categories. Adyen MCP server leads on reliability.", "question": "Which is better for AI agents, Adyen MCP server or Crossmint API + Docs MCP?" }, { "answer": "Both need an API key.", "question": "Do Adyen MCP server and Crossmint API + Docs MCP need an API key?" }, { "answer": "Adyen MCP server runs on your own machine, with no hosted endpoint listed. Crossmint API + Docs MCP has a hosted endpoint at https://www.crossmint.com/api.", "question": "Can an agent call Adyen MCP server and Crossmint API + Docs MCP without installing anything?" }, { "answer": "Adyen MCP server is open source (MIT for the server. The Adyen APIs it calls are a closed service under a merchant agreement and the Adyen Terms and Conditions). No open-source release is listed for Crossmint API + Docs MCP.", "question": "Are Adyen MCP server and Crossmint API + Docs MCP open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 65 against 53" ], "also": [ "Runs on your own machine", "Open source" ], "goodFor": "An Adyen merchant's developer or operations staff who want an assistant to create payment links and sessions, look up terminals, webhooks, users and credentials, and change terminal settings, with a person watching writes.", "slug": "adyen-mcp-server", "watchFor": "The README is headed alpha, the package is at 0.6.0, and the server reports itself as version 0.4.0" }, { "aheadOn": [ "Agent ergonomics, 71 against 56", "Security \u0026 auth, 73 against 63", "Payments \u0026 pricing, 50 against 35", "Maintenance \u0026 community, 85 against 42" ], "also": [ "A hosted endpoint, with nothing to install" ], "goodFor": "Products that let agents spend, especially where a user wants a capped card or a capped stablecoin wallet for an agent, or an agent that buys from ordinary merchant sites.", "slug": "crossmint", "watchFor": "No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts" } ], "job": { "capability": "payments.checkout", "name": "Payments checkout" }, "others": [ { "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-nevermined.json", "title": "Adyen MCP server vs Nevermined API + MCP", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-nevermined" }, { "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-paypal-mcp-server.json", "title": "Adyen MCP server vs PayPal MCP server", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-paypal-mcp-server" }, { "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire.json", "title": "Adyen MCP server vs Skyfire API + MCP", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire" }, { "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-stripe-mcp.json", "title": "Adyen MCP server vs Stripe API + MCP", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-stripe-mcp" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-paypal-mcp-server.json", "title": "Crossmint API + Docs MCP vs PayPal MCP server", "url": "https://www.anchorterminal.com/compare/crossmint-vs-paypal-mcp-server" }, { "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-payman.json", "title": "Adyen MCP server vs Payman Genie MCP", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-payman" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined.json", "title": "Crossmint API + Docs MCP vs Nevermined API + MCP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-nevermined" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-payman.json", "title": "Crossmint API + Docs MCP vs Payman Genie MCP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-payman" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-skyfire.json", "title": "Crossmint API + Docs MCP vs Skyfire API + MCP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-skyfire" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-stripe-mcp.json", "title": "Crossmint API + Docs MCP vs Stripe API + MCP", "url": "https://www.anchorterminal.com/compare/crossmint-vs-stripe-mcp" }, { "json": "https://www.anchorterminal.com/compare/crossmint-vs-tempo.json", "title": "Crossmint API + Docs MCP vs Tempo", "url": "https://www.anchorterminal.com/compare/crossmint-vs-tempo" } ], "scores": [ { "adyen-mcp-server": 65, "by": 12, "crossmint": 53, "edge": "adyen-mcp-server", "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "adyen-mcp-server": 73, "by": 2, "crossmint": 71, "edge": "adyen-mcp-server", "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "adyen-mcp-server": 56, "by": 15, "crossmint": 71, "edge": "crossmint", "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "adyen-mcp-server": 63, "by": 10, "crossmint": 73, "edge": "crossmint", "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "adyen-mcp-server": 35, "by": 15, "crossmint": 50, "edge": "crossmint", "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "adyen-mcp-server": 42, "by": 43, "crossmint": 85, "edge": "crossmint", "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "adyen-mcp-server": 83, "by": 3, "crossmint": 80, "edge": "adyen-mcp-server", "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Crossmint API + Docs MCP scores 67.1 (B) on agent readiness against Adyen MCP server's 60.3 (C), and leads in 4 of 7 scored categories. Adyen MCP server leads on reliability. Both do payments checkout.", "verdicts": { "adyen-mcp-server": "All 38 tools carry read-only, destructive and idempotent annotations, and `--tools` loads a subset under an API credential limited by roles. The README labels the server alpha, `refund_payment` and the other POST tools send no idempotency key, and failures come back as plain text without an error flag.", "crossmint": "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." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint", "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.md", "slim": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.min.md" }, "markdown": "Crossmint API + Docs MCP scores 67.1 (B) on agent readiness against Adyen MCP server's 60.3 (C), and leads in 4 of 7 scored categories. Adyen MCP server leads on reliability. Both do payments checkout.\n\n- Adyen MCP server: grade C, 60.3/100, rank #471 of 842. Markdown https://www.anchorterminal.com/tools/adyen-mcp-server.md · JSON https://www.anchorterminal.com/api/v1/tools/adyen-mcp-server.json\n- Crossmint API + Docs MCP: grade B, 67.1/100, rank #241 of 842. Markdown https://www.anchorterminal.com/tools/crossmint.md · JSON https://www.anchorterminal.com/api/v1/tools/crossmint.json\n\n## Which one, for what\n\n### Adyen MCP server (C)\n\nGood for: An Adyen merchant's developer or operations staff who want an assistant to create payment links and sessions, look up terminals, webhooks, users and credentials, and change terminal settings, with a person watching writes.\n\nAhead on:\n- Reliability, 65 against 53\n\nAlso in its favour:\n- Runs on your own machine\n- Open source\n\nWatch for: The README is headed alpha, the package is at 0.6.0, and the server reports itself as version 0.4.0\n\n### Crossmint API + Docs MCP (B)\n\nGood for: Products that let agents spend, especially where a user wants a capped card or a capped stablecoin wallet for an agent, or an agent that buys from ordinary merchant sites.\n\nAhead on:\n- Agent ergonomics, 71 against 56\n- Security \u0026 auth, 73 against 63\n- Payments \u0026 pricing, 50 against 35\n- Maintenance \u0026 community, 85 against 42\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts\n\n\n## Score by category\n\n| Category | Weight | Adyen MCP server | Crossmint API + Docs MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 65 | 53 | Adyen MCP server +12 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 73 | 71 | Adyen MCP server +2 |\n| Agent ergonomics | 13% (16.2 this run) | 56 | 71 | Crossmint API + Docs MCP +15 |\n| Security \u0026 auth | 14% (17.5 this run) | 63 | 73 | Crossmint API + Docs MCP +10 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 50 | Crossmint API + Docs MCP +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 42 | 85 | Crossmint API + Docs MCP +43 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 83 | 80 | Adyen MCP server +3 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **60.3 · C** | **67.1 · B** | |\n\n## Facts side by side\n\n| Fact | Adyen MCP server | Crossmint API + Docs MCP |\n| --- | --- | --- |\n| Kind | MCP server | HTTP API |\n| Vendor | Adyen N.V. | Crossmint |\n| Hosted endpoint | no (local only) | `https://www.crossmint.com/api` |\n| Transports | stdio | HTTP, Streamable HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | payer tooling only |\n| Licence | MIT for the server. The Adyen APIs it calls are a closed service under a merchant agreement and the Adyen Terms and Conditions | Apache-2.0 |\n| Tools exposed | 38 | 1 |\n| Read-only variant documented | yes | no |\n| llms.txt | yes | yes |\n| Last release | 2026-08-24 | 2026-10-01 |\n| Terms last updated | 2023-11-01 | 2026-07-01 |\n| Privacy policy last updated | 2025-08-04 | 2026-09-21 |\n| Customer content may train models | yes | not found in the text |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | not found in the text | not found in the text |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 27 stars, 168 npm/wk | 52 stars, 40k npm/wk |\n| Agent reviews | none | 3.5/5 (2) |\n\n## Verdicts\n\n**Adyen MCP server.** All 38 tools carry read-only, destructive and idempotent annotations, and `--tools` loads a subset under an API credential limited by roles. The README labels the server alpha, `refund_payment` and the other POST tools send no idempotency key, and failures come back as plain text without an error flag.\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## Before you call either\n\n### Adyen MCP server\n\n1. Set `ADYEN_API_KEY` in the environment and start with `npx -y @adyen/mcp --env=TEST`. The `--adyenApiKey` flag in the docs page puts the key in the process list\n2. Pass `--tools=` with only the tool names the task needs. The default loads all 38, and the terminal settings schema alone is about 29 KB of source\n3. Call `refund_payment` with `pspReference`, `currency`, `value`, `merchantAccount` and `reference`. The description's `paymentPspReference` is not the field name\n4. Treat a `Failed to ...` reply from a write tool as outcome unknown, not as failure. Do not repeat a refund without checking the Customer Area or the REFUND webhook\n5. Give amounts in minor units (1099 for 10.99 EUR). Live use needs `--env=LIVE --livePrefix=` with the prefix from the live Customer Area\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## Questions\n\n### Which is better for AI agents, Adyen MCP server or Crossmint API + Docs MCP?\n\nCrossmint API + Docs MCP scores 67.1 (B) on agent readiness against Adyen MCP server's 60.3 (C), and leads in 4 of 7 scored categories. Adyen MCP server leads on reliability.\n\n### Do Adyen MCP server and Crossmint API + Docs MCP need an API key?\n\nBoth need an API key.\n\n### Can an agent call Adyen MCP server and Crossmint API + Docs MCP without installing anything?\n\nAdyen MCP server runs on your own machine, with no hosted endpoint listed. Crossmint API + Docs MCP has a hosted endpoint at https://www.crossmint.com/api.\n\n### Are Adyen MCP server and Crossmint API + Docs MCP open source?\n\nAdyen MCP server is open source (MIT for the server. The Adyen APIs it calls are a closed service under a merchant agreement and the Adyen Terms and Conditions). No open-source release is listed for Crossmint API + Docs MCP.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.json, and with the fewest tokens: https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"adyen-mcp-server\", \"b\": \"crossmint\"}`. From a terminal: `anchor compare adyen-mcp-server crossmint`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/adyen-mcp-server.json and https://www.anchorterminal.com/api/v1/tools/crossmint.json\n\n## Other comparisons with Adyen MCP server or Crossmint API + Docs MCP\n\n- [Adyen MCP server vs Nevermined API + MCP](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-nevermined.md)\n- [Adyen MCP server vs PayPal MCP server](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-paypal-mcp-server.md)\n- [Adyen MCP server vs Skyfire API + MCP](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire.md)\n- [Adyen MCP server vs Stripe API + MCP](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-stripe-mcp.md)\n- [Crossmint API + Docs MCP vs PayPal MCP server](https://www.anchorterminal.com/compare/crossmint-vs-paypal-mcp-server.md)\n- [Adyen MCP server vs Payman Genie MCP](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-payman.md)\n- [Crossmint API + Docs MCP vs Nevermined API + MCP](https://www.anchorterminal.com/compare/crossmint-vs-nevermined.md)\n- [Crossmint API + Docs MCP vs 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- [Crossmint API + Docs MCP vs Tempo](https://www.anchorterminal.com/compare/crossmint-vs-tempo.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-09", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "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": "Adyen MCP server vs Crossmint API + Docs MCP", "url": "" } ], "description": "Crossmint API + Docs MCP scores 67.1 (B) on agent readiness against Adyen MCP server's 60.3 (C), and leads in 4 of 7 scored categories. Adyen MCP server leads on reliability. Both do payments checkout. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Adyen MCP server C 60.3", "Crossmint API + Docs MCP B 67.1", "scores" ], "h1": "Adyen MCP server vs Crossmint API + Docs MCP", "image": "https://www.anchorterminal.com/assets/og/compare-adyen-mcp-server-vs-crossmint.png", "path": "/compare/adyen-mcp-server-vs-crossmint", "published": "2026-10-01", "section": "tools", "title": "Adyen MCP server vs Crossmint API + Docs MCP for AI agents", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint" }, "tokens": { "markdown": 2300, "slim": 780 }, "version": 1 }