{
  "data": {
    "a": {
      "slug": "crossmint",
      "name": "Crossmint API + Docs MCP",
      "vendor": "Crossmint",
      "vendorUrl": "https://www.crossmint.com",
      "kind": "http-api",
      "category": "payment-platforms",
      "summary": "Wallet, checkout and stablecoin infrastructure with an agent product line.",
      "url": "https://www.anchorterminal.com/tools/crossmint",
      "markdownUrl": "https://www.anchorterminal.com/tools/crossmint.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/crossmint.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/crossmint.json",
      "repo": "https://github.com/Crossmint/crossmint-sdk",
      "license": "Apache-2.0",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://www.crossmint.com/api",
      "packages": [
        {
          "registry": "npm",
          "name": "@crossmint/wallets-sdk"
        },
        {
          "registry": "npm",
          "name": "@crossmint/client-sdk-react-ui"
        }
      ],
      "auth": "api-key",
      "authNotes": "Server-side and client-side API keys in the X-API-KEY header, each with scopes; client keys can require JWTs from your own auth provider. Staging keys work on testnets at staging.crossmint.com and production keys on mainnets. The docs MCP server needs no auth.",
      "pricing": "freemium",
      "pricingNotes": "Wallets free for 1,000 monthly active wallets and up to 2,000 transactions, then from $0.02 per monthly active wallet with volume discounts. Tokenisation from $0.01 an action. Onramp, offramp, checkout and stablecoin orchestration are per-transaction fees with volume discounts, not published. Agent Cards and Agent Checkouts pricing isn't published. Enterprise (premium SLAs and rate limits) is through sales (https://www.crossmint.com/pricing).",
      "priceSummary": "$0.02 / mo",
      "where": "hosted",
      "x402": {
        "level": "partial",
        "evidence": "Agent Wallets pay x402 and MPP endpoints, and an n8n node puts an x402 paywall in front of workflows. The Crossmint API itself isn't paid over x402 (https://docs.crossmint.com/agents/payment-flows/x402).",
        "endpoints": []
      },
      "toolCount": 1,
      "popularity": {
        "githubStars": 52,
        "npmWeekly": 39991,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.crossmint.com/agents/overview",
      "llmsTxt": "https://docs.crossmint.com/llms.txt",
      "openapi": "https://raw.githubusercontent.com/Crossmint/crossmint-sdk/main/packages/wallets/src/openapi.json",
      "capabilities": [
        "payments.card",
        "payments.x402",
        "payments.stablecoin",
        "payments.checkout",
        "payments.payouts"
      ],
      "tags": [
        "hosted",
        "freemium",
        "mcp",
        "llms-txt",
        "stablecoin",
        "x402",
        "wallet",
        "typescript",
        "webhooks"
      ],
      "lastRelease": "2026-10-01",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 67.4,
        "grade": "B",
        "agentReady": false,
        "rank": 140,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 4,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 71,
          "maintenance": 85,
          "payments": 50,
          "reliability": 53,
          "schema": 71,
          "security": 73,
          "transparency": 83
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain. No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts.",
        "strengths": [
          "Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain",
          "Scoped server and client API keys, with each operation's required scope named in the spec",
          "Idempotency keys on transaction and transfer creation, and cursor or page pagination with date filters",
          "Regulatory footprint stated in public, a Spanish CNMV crypto-asset service provider authorisation plus FinCEN and FINTRAC registrations",
          "16 SDK release commits since 1 July, the latest on 1 October 2026"
        ],
        "weaknesses": [
          "No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts",
          "Agent Checkouts runs in production only, so the first test spends real money",
          "Status history is on a JavaScript-only Datadog page, and the docs changelog stops at 11 February 2026",
          "No MCP server for wallets or payments, only a one-tool docs search",
          "SDKs in TypeScript only"
        ],
        "agentNotes": [
          "Send an `x-idempotency-key` on every transaction or transfer create so a retry can't pay twice",
          "Use staging keys against testnets; production keys work on mainnets only, and Agent Checkouts has no staging at all",
          "On 429, wait and retry. No Retry-After header is documented, and writes are capped at 120 a minute per project",
          "Use Agent Wallets for x402 and MPP endpoints and Agent Cards for card merchants; they aren't interchangeable",
          "Append `.md` to any docs URL for a Markdown copy"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 67.4
          }
        ],
        "editorialScores": {
          "ergonomics": 71,
          "maintenance": 85,
          "payments": 50,
          "reliability": 53,
          "schema": 71,
          "security": 73,
          "transparency": 65
        },
        "provenanceScore": 100
      },
      "connect": {
        "http": "curl -X POST https://staging.crossmint.com/api/2025-06-09/wallets -H \"X-API-KEY: $CROSSMINT_API_KEY\" \\\n  -H \"Content-Type: application/json\" -d '{\"chainType\":\"evm\"}'",
        "claudeCode": "claude mcp add --transport http crossmint-docs https://docs.crossmint.com/mcp",
        "config": {
          "mcpServers": {
            "crossmint-docs": {
              "url": "https://docs.crossmint.com/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/payments.card",
        "tool": "https://letme.dev/crossmint"
      },
      "area": "payments",
      "unitPrices": [
        {
          "item": "Wallet over free tier",
          "unit": "month",
          "usd": 0.02,
          "note": "per monthly active wallet above 1,000, volume discounts"
        },
        {
          "item": "Tokenisation action",
          "unit": "call",
          "usd": 0.01,
          "note": "starting price, volume discounts"
        }
      ],
      "provenance": {
        "legalEntity": "Crossmint, Inc.",
        "domain": "crossmint.com",
        "domainRegistered": "2007-02-23",
        "domainNote": "crossmint.com was registered in 2007, long before Crossmint was founded. Terms also name Crossmint Europe, S.L. and Crossmint Horizon, Inc. The security.txt lists a contact and policy but no Expires field.",
        "endpointOnVendorDomain": true,
        "terms": "https://www.crossmint.com/legal/terms-of-service",
        "privacy": "https://www.crossmint.com/legal/privacy-policy",
        "statusPage": "https://status.crossmint.com",
        "changelog": "https://docs.crossmint.com/changelog",
        "securityTxt": "valid",
        "checked": "2026-09-30",
        "score": 100
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/crossmint.json",
      "live": {
        "slug": "crossmint",
        "probe": {
          "target": "https://www.crossmint.com/api",
          "method": "get",
          "lastAt": "2026-10-05T03:17:24.624860495Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 140,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 168,
          "p95ms24h": 418,
          "samples24h": 273,
          "samples30d": 1140,
          "days": [
            {
              "date": "2026-09-30",
              "probes": 35,
              "ok": 35
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 38,
              "ok": 38
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.crossmint.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:39:55.788897681Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@crossmint/client-sdk-react-ui",
            "version": "4.9.0",
            "seenAt": "2026-10-04T16:24:55.247658176Z"
          },
          {
            "registry": "npm",
            "name": "@crossmint/wallets-sdk",
            "version": "1.19.0",
            "seenAt": "2026-10-04T16:24:54.368403505Z"
          }
        ],
        "githubStars": 52,
        "npmWeekly": 54443,
        "securityTxt": {
          "url": "https://crossmint.com/.well-known/security.txt",
          "state": "valid",
          "checkedAt": "2026-10-04T15:15:57.080360635Z"
        },
        "llmsTxt": {
          "url": "https://docs.crossmint.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:17:29.170061537Z"
        },
        "domain": {
          "domain": "crossmint.com",
          "registered": "2007-02-23",
          "source": "https://rdap.verisign.com/com/v1/domain/crossmint.com",
          "checkedAt": "2026-10-04T13:07:50.738904164Z"
        },
        "pages": [
          {
            "url": "https://docs.crossmint.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:43:32.688203345Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "9586f8e8a1d3"
          },
          {
            "url": "https://www.crossmint.com/pricing",
            "kind": "pricing",
            "status": 304,
            "checkedAt": "2026-10-04T15:50:02.571676047Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "dffec4faf7a5"
          },
          {
            "url": "https://www.crossmint.com/legal/privacy-policy",
            "kind": "privacy",
            "status": 304,
            "checkedAt": "2026-10-04T15:49:58.143805166Z",
            "changedAt": "2026-10-02T15:26:08.112583044Z",
            "fingerprint": "73ab07afabce"
          },
          {
            "url": "https://www.crossmint.com/legal/terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:50:00.310946993Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "869ee89b903b"
          }
        ],
        "updatedAt": "2026-10-05T03:17:24.624860495Z"
      }
    },
    "b": {
      "slug": "payman",
      "name": "Payman Genie MCP",
      "vendor": "Payman AI",
      "vendorUrl": "https://paymanai.com",
      "kind": "http-api",
      "category": "payment-platforms",
      "summary": "Banking and payment tools for agents. Its Genie MCP server supports bill payments, cards, transfers and other transactions within owner-defined limits.",
      "url": "https://www.anchorterminal.com/tools/payman",
      "markdownUrl": "https://www.anchorterminal.com/tools/payman.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/payman.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/payman.json",
      "repo": "https://github.com/PaymanAI/genie-mcp-stdio",
      "license": "MIT",
      "transports": [
        "streamable-http",
        "stdio"
      ],
      "remoteUrl": "https://genie.paymanai.com/mcp",
      "packages": [
        {
          "registry": "npm",
          "name": "@paymanai/genie-mcp-stdio"
        }
      ],
      "auth": "oauth",
      "authNotes": "OAuth 2.1 authorisation code with S256 PKCE as a public client, scopes `genie:ask` and `genie:self`; the first call answers 401 with resource metadata. Clients can now register dynamically with exact redirect URIs and no secret; the stdio bridge is a preregistered native client that stores a rotating refresh token (90 days from last use) in a 0600 file and revokes it on logout. Access tokens last an hour. No API keys for people; integration keys exist for organisations acting for customers.",
      "pricing": "paid",
      "pricingNotes": "No price list is published for Genie, and signing up needs no card or bank details. Fees from connected providers (card issuers, Coinbase, banks) still apply. The bank product is sold through demos only (https://genie.paymanai.com/developers).",
      "priceSummary": "Paid",
      "where": "both",
      "x402": {
        "level": "partial",
        "evidence": "Genie can pay x402-protected APIs from a daily agent budget the owner sets. Payman doesn't offer a way to accept x402 payments (https://genie.paymanai.com/).",
        "endpoints": []
      },
      "toolCount": 5,
      "popularity": {
        "githubStars": 0,
        "npmWeekly": 33,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://genie.paymanai.com/developers",
      "capabilities": [
        "payments.x402",
        "payments.card",
        "payments.payouts"
      ],
      "tags": [
        "hosted",
        "mcp",
        "x402",
        "no-card",
        "closed-source"
      ],
      "lastRelease": "2026-09-19",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 53,
        "grade": "D",
        "agentReady": false,
        "rank": 337,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 5,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 68,
          "maintenance": 60,
          "payments": 35,
          "reliability": 25,
          "schema": 56,
          "security": 80,
          "transparency": 48
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "OAuth 2.1 with PKCE, two scopes, one-hour access tokens and refresh tokens rotated on every use and revoked on logout. No published pricing, status page, rate limits or changelog.",
        "strengths": [
          "OAuth 2.1 with PKCE, two scopes, one-hour access tokens and refresh tokens rotated on every use and revoked on logout",
          "Owner-set per-payment, daily and monthly limits and approved payees, with code or passkey approval over a threshold",
          "Five documented statuses and three retry codes tell an agent when to stop and when retrying is safe",
          "Five compact MCP tools, one of which moves money",
          "Genie holds no funds; money stays at the bank, card wallet or Coinbase"
        ],
        "weaknesses": [
          "No published pricing, status page, rate limits or changelog",
          "Pays x402 APIs but can't accept x402, MPP or any agent payment",
          "docs.paymanai.com still fails with a Cloudflare 526 and the payman-ts SDK hasn't shipped since September 2025, with no deprecation notice",
          "The privacy policy allows anonymised or aggregated data to train AI models",
          "Not in the official MCP registry"
        ],
        "agentNotes": [
          "Pass the person's request to `ask_genie` in their own words; don't pick accounts or fill payment fields",
          "On `needs_approval`, stop and tell the person; approval happens in their Genie account",
          "Retry only after `NOTHING_RAN` or `BUSY`, never after `OUTCOME_UNKNOWN`",
          "Treat `done` as acted, not settled; check the activity history before confirming a payment",
          "Sign-ins from bridge 0.3.x lack `genie:self`; log out and sign in again to use the self-service tools"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 53
          }
        ],
        "editorialScores": {
          "ergonomics": 68,
          "maintenance": 60,
          "payments": 35,
          "reliability": 25,
          "schema": 56,
          "security": 80,
          "transparency": 33
        },
        "provenanceScore": 62
      },
      "connect": {
        "claudeCode": "claude mcp add --transport http genie https://genie.paymanai.com/mcp",
        "config": {
          "mcpServers": {
            "genie": {
              "args": [
                "-y",
                "@paymanai/genie-mcp-stdio"
              ],
              "command": "npx"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/payments.x402",
        "tool": "https://letme.dev/payman"
      },
      "area": "payments",
      "provenance": {
        "legalEntity": "Payman AI, Inc.",
        "domain": "paymanai.com",
        "domainRegistered": "2024-04-12",
        "endpointOnVendorDomain": true,
        "terms": "https://paymanai.com/terms-of-use",
        "privacy": "https://paymanai.com/privacy-policy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "API licence agreement updated 2026-09-29 (https://paymanai.com/api-license)",
          "Trust centre at https://trust.paymanai.com/ claims SOC 2"
        ],
        "score": 62
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/payman.json",
      "live": {
        "slug": "payman",
        "probe": {
          "target": "https://genie.paymanai.com/mcp",
          "method": "get",
          "lastAt": "2026-10-05T03:17:30.463149519Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 286,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 288,
          "p95ms24h": 385,
          "samples24h": 273,
          "samples30d": 1140,
          "days": [
            {
              "date": "2026-09-30",
              "probes": 35,
              "ok": 35
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 38,
              "ok": 38
            }
          ]
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@paymanai/genie-mcp-stdio",
            "version": "0.4.0",
            "seenAt": "2026-10-04T16:36:19.184615045Z"
          }
        ],
        "githubStars": 0,
        "npmWeekly": 15,
        "securityTxt": {
          "url": "https://paymanai.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:16:01.161876705Z"
        },
        "domain": {
          "domain": "paymanai.com",
          "registered": "2024-04-12",
          "source": "https://rdap.verisign.com/com/v1/domain/paymanai.com",
          "checkedAt": "2026-10-04T13:10:17.928221506Z"
        },
        "pages": [
          {
            "url": "https://paymanai.com/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:35.927633141Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "ff776dc5cea7"
          },
          {
            "url": "https://paymanai.com/terms-of-use",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:38.021474575Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "9f297267ac8a"
          }
        ],
        "updatedAt": "2026-10-05T03:17:30.463149519Z"
      }
    },
    "summary": "Crossmint API + Docs MCP has a score of 67.4 (B) against Payman Genie MCP's 53 (D). Both do payments card. The largest gap is transparency \u0026 trust, 35 points."
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/crossmint-vs-payman",
    "json": "https://www.anchorterminal.com/compare/crossmint-vs-payman.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/crossmint-vs-payman.md",
    "slim": "https://www.anchorterminal.com/compare/crossmint-vs-payman.min.md"
  },
  "markdown": "Crossmint API + Docs MCP has a score of 67.4 (B) against Payman Genie MCP's 53 (D). Both do payments card. The largest gap is transparency \u0026 trust, 35 points.\n\n- Crossmint API + Docs MCP: grade B, 67.4/100, rank #140 of 452. Markdown https://www.anchorterminal.com/tools/crossmint.md · JSON https://www.anchorterminal.com/api/v1/tools/crossmint.json\n- Payman Genie MCP: grade D, 53/100, rank #337 of 452. Markdown https://www.anchorterminal.com/tools/payman.md · JSON https://www.anchorterminal.com/api/v1/tools/payman.json\n\n## Which one, for what\n\nPick Crossmint API + Docs MCP for reliability (+28), schema \u0026 documentation (+15), payments \u0026 pricing (+15), maintenance \u0026 community (+25), transparency \u0026 trust (+35).\n\nPick Payman Genie MCP for security \u0026 auth (+7).\n\n## Score by category\n\n| Category | Weight | Crossmint API + Docs MCP | Payman Genie MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 53 | 25 | Crossmint API + Docs MCP +28 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 71 | 56 | Crossmint API + Docs MCP +15 |\n| Agent ergonomics | 13% (16.2 this run) | 71 | 68 | Crossmint API + Docs MCP +3 |\n| Security \u0026 auth | 14% (17.5 this run) | 73 | 80 | Payman Genie MCP +7 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 50 | 35 | 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) | 85 | 60 | Crossmint API + Docs MCP +25 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 83 | 48 | Crossmint API + Docs MCP +35 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **67.4 · B** | **53 · D** | |\n\n## Facts side by side\n\n| Fact | Crossmint API + Docs MCP | Payman Genie MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Crossmint | Payman AI |\n| Hosted endpoint | `https://www.crossmint.com/api` | `https://genie.paymanai.com/mcp` |\n| Transports | HTTP, Streamable HTTP | Streamable HTTP, stdio |\n| Auth | API key | OAuth |\n| Pricing | Freemium | Paid |\n| x402 | payer tooling only | payer tooling only |\n| Licence | Apache-2.0 | MIT |\n| Tools exposed | 1 | 5 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| MCP registry | not listed | not listed |\n| Last release | 2026-10-01 | 2026-09-19 |\n| Popularity | 52 stars, 40k npm/wk | 0 stars, 33 npm/wk |\n| Agent reviews | 3.5/5 (2) | 3.5/5 (2) |\n\n## Verdicts\n\n**Crossmint API + Docs MCP.** Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain. No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts.\n\n**Payman Genie MCP.** OAuth 2.1 with PKCE, two scopes, one-hour access tokens and refresh tokens rotated on every use and revoked on logout. No published pricing, status page, rate limits or changelog.\n\n## Before you call either\n\n### Crossmint API + Docs MCP\n\n1. Send an `x-idempotency-key` on every transaction or transfer create so a retry can't pay twice\n2. Use staging keys against testnets; production keys work on mainnets only, and Agent Checkouts has no staging at all\n3. On 429, wait and retry. No Retry-After header is documented, and writes are capped at 120 a minute per project\n4. Use Agent Wallets for x402 and MPP endpoints and Agent Cards for card merchants; they aren't interchangeable\n5. Append `.md` to any docs URL for a Markdown copy\n\n### Payman Genie MCP\n\n1. Pass the person's request to `ask_genie` in their own words; don't pick accounts or fill payment fields\n2. On `needs_approval`, stop and tell the person; approval happens in their Genie account\n3. Retry only after `NOTHING_RAN` or `BUSY`, never after `OUTCOME_UNKNOWN`\n4. Treat `done` as acted, not settled; check the activity history before confirming a payment\n5. Sign-ins from bridge 0.3.x lack `genie:self`; log out and sign in again to use the self-service tools\n\n## Other comparisons with Crossmint API + Docs MCP or Payman Genie MCP\n\n- [Crossmint API + Docs MCP vs Tempo](https://www.anchorterminal.com/compare/crossmint-vs-tempo.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 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- [Payman Genie MCP vs Skyfire API + MCP](https://www.anchorterminal.com/compare/payman-vs-skyfire.md)\n- [Nevermined API + MCP vs Payman Genie MCP](https://www.anchorterminal.com/compare/nevermined-vs-payman.md)\n- [Payman Genie MCP vs Stripe API + MCP](https://www.anchorterminal.com/compare/payman-vs-stripe-mcp.md)\n",
  "meta": {
    "attribution": "Anchor Terminal (https://www.anchorterminal.com)",
    "docs": "https://www.anchorterminal.com/docs/",
    "generatedAt": "2026-10-05",
    "license": "CC-BY-4.0",
    "method": "https://www.anchorterminal.com/benchmark/",
    "methodology": "0.3",
    "openapi": "https://www.anchorterminal.com/openapi.json",
    "preview": false,
    "run": "2026-10-01",
    "runLabel": "October 2026 research run"
  },
  "page": {
    "breadcrumbs": [
      {
        "name": "Home",
        "url": "https://www.anchorterminal.com/"
      },
      {
        "name": "Compare",
        "url": "https://www.anchorterminal.com/compare/"
      },
      {
        "name": "Crossmint API + Docs MCP vs Payman Genie MCP",
        "url": ""
      }
    ],
    "description": "Crossmint API + Docs MCP has a score of 67.4 (B) against Payman Genie MCP's 53 (D). Both do payments card. The largest gap is transparency \u0026 trust, 35 points. Category scores, facts, verdicts and agent notes side by side.",
    "facts": [
      "Crossmint API + Docs MCP B 67.4",
      "Payman Genie MCP D 53",
      "scores"
    ],
    "h1": "Crossmint API + Docs MCP vs Payman Genie MCP",
    "image": "https://www.anchorterminal.com/assets/og/compare-crossmint-vs-payman.png",
    "path": "/compare/crossmint-vs-payman",
    "published": "2026-10-01",
    "section": "tools",
    "title": "Crossmint API + Docs MCP vs Payman Genie MCP for AI agents",
    "toc": null,
    "updated": "2026-10-05",
    "url": "https://www.anchorterminal.com/compare/crossmint-vs-payman"
  },
  "tokens": {
    "markdown": 1400,
    "slim": 380
  },
  "version": 1
}
