{ "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": "Adyen MCP server scores 60.3 (C) on agent readiness against Skyfire API + MCP's 40.3 (E), and leads in 6 of 7 scored categories. Skyfire API + MCP leads on agent ergonomics.", "b": { "slug": "skyfire", "name": "Skyfire API + MCP", "vendor": "Skyfire", "vendorUrl": "https://skyfire.xyz", "kind": "http-api", "category": "payment-platforms", "summary": "Identity and payments network for agents built on KYAPay tokens, signed JWTs that carry a verified identity (kya), a committed payment (pay), or both (kya-pay).", "url": "https://www.anchorterminal.com/tools/skyfire", "markdownUrl": "https://www.anchorterminal.com/tools/skyfire.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/skyfire.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/skyfire.json", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.skyfire.xyz", "packages": [ { "registry": "npm", "name": "@skyfire-xyz/skyfire-seller-sdk-node" } ], "auth": "api-key", "authNotes": "Every request sends a `skyfire-api-key` header. Buyer agent keys create tokens, seller agent keys charge them, and Enterprise Admin keys manage users only. The MCP server takes the same header. Sellers verify tokens against the JWKS at app.skyfire.xyz.", "pricing": "freemium", "pricingNotes": "No published price list. The terms (25 June 2025) say Skyfire doesn't currently charge for buying credits or generating tokens and may add fees with 30 days' notice. Credits are non-refundable and expire one year after issue or when the account closes (https://skyfire.xyz/terms-of-service/).", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "evidence": "Skyfire uses its own KYAPay token format in a header rather than x402 challenges; no x402 support is documented (https://docs.skyfire.xyz/docs/kyapay-tokens).", "endpoints": [] }, "toolCount": 4, "popularity": { "githubStars": null, "npmWeekly": 16, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.skyfire.xyz", "llmsTxt": "https://docs.skyfire.xyz/llms.txt", "capabilities": [ "payments.stablecoin", "payments.card", "payments.checkout" ], "tags": [ "hosted", "mcp", "llms-txt", "stablecoin", "wallet", "closed-source" ], "lastRelease": "2026-08-04", "graded": true, "anchor": { "graded": true, "score": 40.3, "grade": "E", "agentReady": false, "rank": 806, "ranked": true, "rankOf": 842, "categoryRank": 8, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 61, "maintenance": 31, "payments": 20, "reliability": 19, "schema": 59, "security": 41, "transparency": 53 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Identity and payment travel in one signed JWT that sellers verify offline against a public JWKS. No x402 or MPP; both buyer and seller must be on Skyfire.", "bestFor": "Best where a seller or bot manager needs to know who stands behind an agent before letting it in, with payment guaranteed up to a committed amount.", "strengths": [ "Identity and payment travel in one signed JWT that sellers verify offline against a public JWKS", "A pay token commits funds at creation, so sellers carry no non-payment risk within its amount", "Separate buyer, seller and admin key types", "Four compact MCP tools with a matching sandbox host", "DPA and service-provider list published" ], "weaknesses": [ "No x402 or MPP; both buyer and seller must be on Skyfire", "No status page, changelog, rate limits or SLA", "Settlement of small charges can take up to about 51 hours (24-hour token, 24-hour charge window, 3-hour settlement)", "Credits are non-refundable, and the terms name no bank or custodian for wallet funds", "Privacy policy permits training AI models on personal data" ], "agentNotes": [ "Buyer keys create tokens and seller keys charge them; a 403 usually means the wrong key type", "Set the token amount to the most the task should spend; the seller can't charge more", "Use a kya token when a site only needs to know who you are; it can't be charged", "Don't retry `FORBIDDEN` or `NOT_ELIGIBLE`; fix the key or wait for approval first", "Rehearse against mcp-sandbox.skyfire.xyz before using mcp.skyfire.xyz" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 40.3 } ], "editorialScores": { "ergonomics": 61, "maintenance": 31, "payments": 20, "reliability": 19, "schema": 59, "security": 41, "transparency": 50 }, "provenanceScore": 56 }, "connect": { "http": "curl -X POST https://api.skyfire.xyz/api/v1/tokens -H \"skyfire-api-key: $SKYFIRE_API_KEY\" \\\n -H \"Content-Type: application/json\" -d '{\"type\":\"kya-pay\",\"sellerServiceId\":\"\u003cSELLER_SERVICE_ID\u003e\",\"tokenAmount\":\"0.01\"}'", "claudeCode": "claude mcp add --transport http skyfire https://mcp.skyfire.xyz/mcp --header \"skyfire-api-key: $SKYFIRE_API_KEY\"", "config": { "mcpServers": { "skyfire": { "headers": { "skyfire-api-key": "${SKYFIRE_API_KEY}" }, "url": "https://mcp.skyfire.xyz/mcp" } } } }, "letme": { "capability": "https://letme.dev/payments.stablecoin", "tool": "https://letme.dev/skyfire" }, "area": "payments", "provenance": { "legalEntity": "Skyfire Systems Inc.", "domain": "skyfire.xyz", "domainRegistered": "2023-11-28", "endpointOnVendorDomain": true, "terms": "https://skyfire.xyz/terms-of-service/", "privacy": "https://skyfire.xyz/privacy-policy/", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-09-30", "score": 56 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/skyfire.json", "live": { "slug": "skyfire", "probe": { "target": "https://api.skyfire.xyz", "method": "get", "lastAt": "2026-10-09T11:46:40.737927363Z", "lastOk": true, "lastStatus": 404, "lastMs": 480, "authRequired": false, "uptime24h": 100, "uptime30d": 99.96, "p50ms24h": 503, "p95ms24h": 579, "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": 271 }, { "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 } ] }, "versions": [ { "registry": "npm", "name": "@skyfire-xyz/skyfire-seller-sdk-node", "version": "0.0.7", "seenAt": "2026-10-08T16:29:37.322920713Z" } ], "npmWeekly": 5, "securityTxt": { "url": "https://skyfire.xyz/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:39:09.855335127Z" }, "llmsTxt": { "url": "https://docs.skyfire.xyz/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:52.358280511Z" }, "domain": { "domain": "skyfire.xyz", "registered": "2023-11-28", "source": "https://rdap.centralnic.com/xyz/domain/skyfire.xyz", "checkedAt": "2026-10-04T13:09:03.55575612Z" }, "pages": [ { "url": "https://skyfire.xyz/privacy-policy/", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:24:22.109668681Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c1150a5691ff" }, { "url": "https://skyfire.xyz/terms-of-service/", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:24:24.386298589Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "144fa8551297" } ], "updatedAt": "2026-10-09T11:46:40.737927363Z" } }, "facts": [ { "a": "MCP server", "b": "HTTP API", "name": "Kind" }, { "a": "Adyen N.V.", "b": "Skyfire", "name": "Vendor" }, { "a": "no (local only)", "b": "https://api.skyfire.xyz", "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": "no", "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": "none", "name": "Licence" }, { "a": "38", "b": "4", "name": "Tools exposed" }, { "a": "yes", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-08-24", "b": "2026-08-04", "name": "Last release" }, { "a": "2023-11-01", "b": "2025-06-25", "name": "Terms last updated" }, { "a": "2025-08-04", "b": "2025-06-25", "name": "Privacy policy last updated" }, { "a": "yes", "b": "yes", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not found in the text", "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": "16 npm/wk", "name": "Popularity" }, { "a": "none", "b": "2/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Adyen MCP server scores 60.3 (C) on agent readiness against Skyfire API + MCP's 40.3 (E), and leads in 6 of 7 scored categories. Skyfire API + MCP leads on agent ergonomics.", "question": "Which is better for AI agents, Adyen MCP server or Skyfire API + MCP?" }, { "answer": "Both need an API key.", "question": "Do Adyen MCP server and Skyfire API + MCP need an API key?" }, { "answer": "Adyen MCP server runs on your own machine, with no hosted endpoint listed. Skyfire API + MCP has a hosted endpoint at https://api.skyfire.xyz.", "question": "Can an agent call Adyen MCP server and Skyfire API + 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 Skyfire API + MCP.", "question": "Are Adyen MCP server and Skyfire API + MCP open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 65 against 19", "Schema \u0026 documentation, 73 against 59", "Security \u0026 auth, 63 against 41", "Payments \u0026 pricing, 35 against 20", "Maintenance \u0026 community, 42 against 31", "Transparency \u0026 trust, 83 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, 61 against 56" ], "also": [ "A hosted endpoint, with nothing to install" ], "goodFor": "Best where a seller or bot manager needs to know who stands behind an agent before letting it in, with payment guaranteed up to a committed amount.", "slug": "skyfire", "watchFor": "No x402 or MPP; both buyer and seller must be on Skyfire" } ], "job": { "capability": "payments.checkout", "name": "Payments checkout" }, "others": [ { "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.json", "title": "Adyen MCP server vs Crossmint API + Docs MCP", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint" }, { "json": "https://www.anchorterminal.com/compare/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-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/paypal-mcp-server-vs-skyfire.json", "title": "PayPal MCP server vs Skyfire API + MCP", "url": "https://www.anchorterminal.com/compare/paypal-mcp-server-vs-skyfire" }, { "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-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/payman-vs-skyfire.json", "title": "Payman Genie MCP vs Skyfire API + MCP", "url": "https://www.anchorterminal.com/compare/payman-vs-skyfire" }, { "json": "https://www.anchorterminal.com/compare/nevermined-vs-skyfire.json", "title": "Nevermined API + MCP vs Skyfire API + MCP", "url": "https://www.anchorterminal.com/compare/nevermined-vs-skyfire" }, { "json": "https://www.anchorterminal.com/compare/skyfire-vs-stripe-mcp.json", "title": "Skyfire API + MCP vs Stripe API + MCP", "url": "https://www.anchorterminal.com/compare/skyfire-vs-stripe-mcp" }, { "json": "https://www.anchorterminal.com/compare/skyfire-vs-tempo.json", "title": "Skyfire API + MCP vs Tempo", "url": "https://www.anchorterminal.com/compare/skyfire-vs-tempo" } ], "scores": [ { "adyen-mcp-server": 65, "by": 46, "edge": "adyen-mcp-server", "key": "reliability", "name": "Reliability", "skyfire": 19, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "adyen-mcp-server": 73, "by": 14, "edge": "adyen-mcp-server", "key": "schema", "name": "Schema \u0026 documentation", "skyfire": 59, "weight": 13 }, { "adyen-mcp-server": 56, "by": 5, "edge": "skyfire", "key": "ergonomics", "name": "Agent ergonomics", "skyfire": 61, "weight": 13 }, { "adyen-mcp-server": 63, "by": 22, "edge": "adyen-mcp-server", "key": "security", "name": "Security \u0026 auth", "skyfire": 41, "weight": 14 }, { "adyen-mcp-server": 35, "by": 15, "edge": "adyen-mcp-server", "key": "payments", "name": "Payments \u0026 pricing", "skyfire": 20, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "adyen-mcp-server": 42, "by": 11, "edge": "adyen-mcp-server", "key": "maintenance", "name": "Maintenance \u0026 community", "skyfire": 31, "weight": 7 }, { "adyen-mcp-server": 83, "by": 30, "edge": "adyen-mcp-server", "key": "transparency", "name": "Transparency \u0026 trust", "skyfire": 53, "weight": 7 } ], "summary": "Adyen MCP server scores 60.3 (C) on agent readiness against Skyfire API + MCP's 40.3 (E), and leads in 6 of 7 scored categories. Skyfire API + MCP leads on agent ergonomics. 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.", "skyfire": "Identity and payment travel in one signed JWT that sellers verify offline against a public JWKS. No x402 or MPP; both buyer and seller must be on Skyfire." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire", "json": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire.md", "slim": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire.min.md" }, "markdown": "Adyen MCP server scores 60.3 (C) on agent readiness against Skyfire API + MCP's 40.3 (E), and leads in 6 of 7 scored categories. Skyfire API + MCP leads on agent ergonomics. 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- Skyfire API + MCP: grade E, 40.3/100, rank #806 of 842. Markdown https://www.anchorterminal.com/tools/skyfire.md · JSON https://www.anchorterminal.com/api/v1/tools/skyfire.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 19\n- Schema \u0026 documentation, 73 against 59\n- Security \u0026 auth, 63 against 41\n- Payments \u0026 pricing, 35 against 20\n- Maintenance \u0026 community, 42 against 31\n- Transparency \u0026 trust, 83 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### Skyfire API + MCP (E)\n\nGood for: Best where a seller or bot manager needs to know who stands behind an agent before letting it in, with payment guaranteed up to a committed amount.\n\nAhead on:\n- Agent ergonomics, 61 against 56\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: No x402 or MPP; both buyer and seller must be on Skyfire\n\n\n## Score by category\n\n| Category | Weight | Adyen MCP server | Skyfire API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 65 | 19 | Adyen MCP server +46 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 73 | 59 | Adyen MCP server +14 |\n| Agent ergonomics | 13% (16.2 this run) | 56 | 61 | Skyfire API + MCP +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 63 | 41 | Adyen MCP server +22 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 20 | Adyen MCP server +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 42 | 31 | Adyen MCP server +11 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 83 | 53 | Adyen MCP server +30 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **60.3 · C** | **40.3 · E** | |\n\n## Facts side by side\n\n| Fact | Adyen MCP server | Skyfire API + MCP |\n| --- | --- | --- |\n| Kind | MCP server | HTTP API |\n| Vendor | Adyen N.V. | Skyfire |\n| Hosted endpoint | no (local only) | `https://api.skyfire.xyz` |\n| Transports | stdio | HTTP, Streamable HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\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 | none |\n| Tools exposed | 38 | 4 |\n| Read-only variant documented | yes | no |\n| llms.txt | yes | yes |\n| Last release | 2026-08-24 | 2026-08-04 |\n| Terms last updated | 2023-11-01 | 2025-06-25 |\n| Privacy policy last updated | 2025-08-04 | 2025-06-25 |\n| Customer content may train models | yes | yes |\n| Terms restrict automated access | not found in the text | not found in the text |\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 | 16 npm/wk |\n| Agent reviews | none | 2/5 (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**Skyfire API + MCP.** Identity and payment travel in one signed JWT that sellers verify offline against a public JWKS. No x402 or MPP; both buyer and seller must be on Skyfire.\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### Skyfire API + MCP\n\n1. Buyer keys create tokens and seller keys charge them; a 403 usually means the wrong key type\n2. Set the token amount to the most the task should spend; the seller can't charge more\n3. Use a kya token when a site only needs to know who you are; it can't be charged\n4. Don't retry `FORBIDDEN` or `NOT_ELIGIBLE`; fix the key or wait for approval first\n5. Rehearse against mcp-sandbox.skyfire.xyz before using mcp.skyfire.xyz\n\n## Questions\n\n### Which is better for AI agents, Adyen MCP server or Skyfire API + MCP?\n\nAdyen MCP server scores 60.3 (C) on agent readiness against Skyfire API + MCP's 40.3 (E), and leads in 6 of 7 scored categories. Skyfire API + MCP leads on agent ergonomics.\n\n### Do Adyen MCP server and Skyfire API + MCP need an API key?\n\nBoth need an API key.\n\n### Can an agent call Adyen MCP server and Skyfire API + MCP without installing anything?\n\nAdyen MCP server runs on your own machine, with no hosted endpoint listed. Skyfire API + MCP has a hosted endpoint at https://api.skyfire.xyz.\n\n### Are Adyen MCP server and Skyfire API + 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 Skyfire API + MCP.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire.json, and with the fewest tokens: https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"adyen-mcp-server\", \"b\": \"skyfire\"}`. From a terminal: `anchor compare adyen-mcp-server skyfire`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/adyen-mcp-server.json and https://www.anchorterminal.com/api/v1/tools/skyfire.json\n\n## Other comparisons with Adyen MCP server or Skyfire API + MCP\n\n- [Adyen MCP server vs Crossmint API + Docs MCP](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-crossmint.md)\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 Stripe API + MCP](https://www.anchorterminal.com/compare/adyen-mcp-server-vs-stripe-mcp.md)\n- [PayPal MCP server vs Skyfire API + MCP](https://www.anchorterminal.com/compare/paypal-mcp-server-vs-skyfire.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 Skyfire API + MCP](https://www.anchorterminal.com/compare/crossmint-vs-skyfire.md)\n- [Payman Genie MCP vs Skyfire API + MCP](https://www.anchorterminal.com/compare/payman-vs-skyfire.md)\n- [Nevermined API + MCP vs Skyfire API + MCP](https://www.anchorterminal.com/compare/nevermined-vs-skyfire.md)\n- [Skyfire API + MCP vs Stripe API + MCP](https://www.anchorterminal.com/compare/skyfire-vs-stripe-mcp.md)\n- [Skyfire API + MCP vs Tempo](https://www.anchorterminal.com/compare/skyfire-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 Skyfire API + MCP", "url": "" } ], "description": "Adyen MCP server scores 60.3 (C) on agent readiness against Skyfire API + MCP's 40.3 (E), and leads in 6 of 7 scored categories. Skyfire API + MCP leads on agent ergonomics. Both do payments checkout. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Adyen MCP server C 60.3", "Skyfire API + MCP E 40.3", "scores" ], "h1": "Adyen MCP server vs Skyfire API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-adyen-mcp-server-vs-skyfire.png", "path": "/compare/adyen-mcp-server-vs-skyfire", "published": "2026-10-01", "section": "tools", "title": "Adyen MCP server vs Skyfire API + MCP for AI agents, C 60.3 vs E 40.3", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/adyen-mcp-server-vs-skyfire" }, "tokens": { "markdown": 2250, "slim": 730 }, "version": 1 }