{
  "data": {
    "a": {
      "slug": "rutter",
      "name": "Rutter Accounting API",
      "vendor": "Rutter",
      "vendorUrl": "https://www.rutter.com",
      "kind": "http-api",
      "category": "accounting",
      "summary": "Unified API for accounting, commerce and payment platforms, aimed at lenders and financial software developers.",
      "url": "https://www.anchorterminal.com/tools/rutter",
      "markdownUrl": "https://www.anchorterminal.com/tools/rutter.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/rutter.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/rutter.json",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://production.rutterapi.com/versioned",
      "packages": [],
      "auth": "api-key",
      "authNotes": "HTTP Basic auth with your client_id and client_secret, plus an `access_token` query parameter naming the connection, which you get from the Exchange Tokens endpoint after a user links through Rutter Link. Every call needs an `X-Rutter-Version` header (2024-08-31 is current). The sandbox at sandbox.rutterapi.com uses the same scheme.",
      "pricing": "paid",
      "pricingNotes": "A free starter plan gives sandbox data and a 30-day trial for a proof of concept against QuickBooks, Xero, FreshBooks and Zoho Books, with no card. Production access to every platform, including NetSuite, QuickBooks Desktop and Sage Intacct, is a custom quote from sales, with a 99.9 per cent monthly uptime SLA and one-hour response on critical issues. No per-connection price is published (https://www.rutter.com/pricing).",
      "priceSummary": "Paid",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.rutter.com/rest/2024-08-31/basics",
      "openapi": "https://docs.rutter.com/rest/2024-08-31/spec",
      "capabilities": [
        "accounting.unified",
        "accounting.ledger",
        "accounting.invoices",
        "accounting.bills",
        "accounting.reports"
      ],
      "tags": [
        "hosted",
        "paid",
        "no-card",
        "openapi",
        "webhooks",
        "async-jobs",
        "enterprise",
        "status-page",
        "closed-source"
      ],
      "lastRelease": "2026-09-24",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 55.8,
        "grade": "C",
        "agentReady": false,
        "rank": 311,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 5,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 67,
          "maintenance": 62,
          "payments": 20,
          "reliability": 67,
          "schema": 79,
          "security": 36,
          "transparency": 51
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Idempotency-Key header on writes, and prefer_sync writes that fall back to async after 30 seconds. Production prices are quote-only.",
        "strengths": [
          "Idempotency-Key header on writes, and prefer_sync writes that fall back to async after 30 seconds",
          "Error codes 450, 451, 452 and 550 that separate the platform's failure from Rutter's",
          "OpenAPI spec per dated API version, with an upgrade guide listing breaking changes",
          "30-day sandbox trial with QuickBooks, Xero, FreshBooks and Zoho Books, no card",
          "99.9 per cent monthly uptime SLA published on the pricing page"
        ],
        "weaknesses": [
          "Production prices are quote-only",
          "Terms and privacy policy are Google Drive PDFs, and no legal entity is named on the site",
          "The per-connection access_token travels as a URL query parameter",
          "Four API incidents in September 2026, including about 25 hours of high latency and errors on 3 and 4 September",
          "No SDK, llms.txt or MCP server from the vendor"
        ],
        "agentNotes": [
          "Send X-Rutter-Version: 2024-08-31 on every call",
          "Send an Idempotency-Key on every create so a retry after a timeout doesn't write twice",
          "Use response_mode=prefer_sync and handle the 202 async_response anyway",
          "Treat 452 as the ledger throttling you and 429 as Rutter's 500-per-10-seconds organisation limit",
          "Keep access_token out of logged URLs. The docs only show it as a query parameter"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 55.8
          }
        ],
        "editorialScores": {
          "ergonomics": 67,
          "maintenance": 62,
          "payments": 20,
          "reliability": 67,
          "schema": 79,
          "security": 36,
          "transparency": 26
        },
        "provenanceScore": 75
      },
      "connect": {
        "http": "curl \"https://sandbox.rutterapi.com/versioned/accounting/invoices?access_token=$RUTTER_ACCESS_TOKEN\" \\\n  -u \"$RUTTER_CLIENT_ID:$RUTTER_CLIENT_SECRET\" -H \"X-Rutter-Version: 2024-08-31\""
      },
      "letme": {
        "capability": "https://letme.dev/accounting.unified",
        "tool": "https://letme.dev/rutter"
      },
      "area": "domain-data",
      "provenance": {
        "legalEntity": "Rutter",
        "domain": "rutter.com",
        "domainRegistered": "1996-10-28",
        "domainNote": "rutter.com was registered in 1996, long before the company, so the domain was bought later. The API runs on rutterapi.com.",
        "endpointOnVendorDomain": false,
        "terms": "https://drive.google.com/file/d/1J77WNI4JS_WjFiXn9NgQVBy_N_unqpCn/view",
        "privacy": "https://drive.google.com/file/d/1uZ76Be9jAih5g8kj8bKEAApCnMb6TQVL/view",
        "statusPage": "https://status.rutterapi.com",
        "changelog": "https://docs.rutter.com/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "The footer gives an address at 3 East 28th St, Floor 5, New York, NY 10016 and a copyright line reading Rutter, with no company suffix. We couldn't read the Google Drive PDFs to confirm the legal name.",
          "The API and status page live on rutterapi.com while the site and docs are on rutter.com. Both are the vendor's.",
          "A trust centre at trust.rutter.com holds the security documentation."
        ],
        "score": 75
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/rutter.json",
      "live": {
        "slug": "rutter",
        "probe": {
          "target": "https://production.rutterapi.com/versioned",
          "method": "get",
          "lastAt": "2026-10-05T02:30:02.08998145Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 334,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 304,
          "p95ms24h": 370,
          "samples24h": 273,
          "samples30d": 929,
          "days": [
            {
              "date": "2026-10-01",
              "probes": 109,
              "ok": 109
            },
            {
              "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": 29,
              "ok": 29
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.rutterapi.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-05T02:29:12.257857795Z"
        },
        "securityTxt": {
          "url": "https://rutter.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:43.591485119Z"
        },
        "domain": {
          "domain": "rutter.com",
          "registered": "1996-10-28",
          "source": "https://rdap.verisign.com/com/v1/domain/rutter.com",
          "checkedAt": "2026-10-04T13:03:31.134242543Z"
        },
        "pages": [
          {
            "url": "https://docs.rutter.com/changelog",
            "kind": "changelog",
            "status": 304,
            "checkedAt": "2026-10-04T15:44:00.69234572Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "92fa990bcd51"
          },
          {
            "url": "https://www.rutter.com/pricing",
            "kind": "pricing",
            "status": 304,
            "checkedAt": "2026-10-04T15:52:01.742055638Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "4091577edbf3"
          },
          {
            "url": "https://drive.google.com/file/d/1uZ76Be9jAih5g8kj8bKEAApCnMb6TQVL/view",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:44:26.201246267Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d009b71cc585"
          },
          {
            "url": "https://drive.google.com/file/d/1J77WNI4JS_WjFiXn9NgQVBy_N_unqpCn/view",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:44:23.771110708Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "ca761d70fc05"
          }
        ],
        "updatedAt": "2026-10-05T02:30:02.08998145Z"
      }
    },
    "b": {
      "slug": "xero",
      "name": "Xero API + MCP",
      "vendor": "Xero",
      "vendorUrl": "https://developer.xero.com",
      "kind": "http-api",
      "category": "accounting",
      "summary": "Accounting API for Xero organisations, with contacts, invoices, bills, payments, bank transactions, manual journals, the balance sheet, profit and loss and trial balance, plus payroll in some regions.",
      "url": "https://www.anchorterminal.com/tools/xero",
      "markdownUrl": "https://www.anchorterminal.com/tools/xero.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/xero.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/xero.json",
      "repo": "https://github.com/XeroAPI/xero-mcp-server",
      "license": "MIT",
      "transports": [
        "http",
        "stdio"
      ],
      "remoteUrl": "https://api.xero.com/api.xro/2.0",
      "packages": [
        {
          "registry": "npm",
          "name": "xero-node"
        },
        {
          "registry": "pypi",
          "name": "xero-python"
        },
        {
          "registry": "npm",
          "name": "@xeroapi/xero-mcp-server"
        }
      ],
      "auth": "oauth",
      "authNotes": "OAuth 2.0 authorisation code (PKCE for public clients), or client credentials through a \"custom connection\" that is tied to one organisation. Access tokens last 1,800 seconds and refresh tokens up to 60 days. Every call carries a Bearer token and an `xero-tenant-id` header naming the organisation. Apps created from 29 April 2026 must use the granular scopes (accounting.invoices, accounting.reports.profitandloss.read and so on) rather than the old bundled ones. The MCP server takes a client id and secret for a custom connection, or a ready-made bearer token.",
      "pricing": "freemium",
      "pricingNotes": "Developer Platform plans are priced in Australian dollars and billed monthly on connected organisations. Starter is free with 5 connections and 1,000 API calls a day per organisation. Core is AUD 35 a month for 50 connections, Plus AUD 245 for 1,000 and Advanced AUD 1,445 for 10,000, each with 5,000 calls a day per organisation and an egress allowance of 10, 50 or 250 GB (AUD 2.40 a GB over). Plus and above need App Certification, Advanced and Enterprise a security assessment. Enterprise is priced on application. The model took effect on 2 March 2026 for existing developers and 4 December 2025 for new ones (https://developer.xero.com/pricing/).",
      "priceSummary": "Freemium",
      "where": "both",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": 51,
      "popularity": {
        "githubStars": 350,
        "npmWeekly": 394967,
        "pypiWeekly": 63610,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://developer.xero.com/documentation/",
      "openapi": "https://github.com/XeroAPI/Xero-OpenAPI",
      "capabilities": [
        "accounting.ledger",
        "accounting.invoices",
        "accounting.bills",
        "accounting.reports"
      ],
      "tags": [
        "hosted",
        "freemium",
        "free-tier",
        "oauth",
        "mcp",
        "openapi",
        "typescript",
        "python",
        "webhooks",
        "status-page"
      ],
      "lastRelease": "2026-10-01",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 67.4,
        "grade": "B",
        "agentReady": false,
        "rank": 143,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 3,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 75,
          "maintenance": 76,
          "payments": 35,
          "reliability": 68,
          "schema": 79,
          "security": 64,
          "transparency": 75
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Granular OAuth scopes, such as accounting.reports.profitandloss.read, required for apps created from 29 April 2026. Developer docs, including the per-minute rate limits, only render with JavaScript.",
        "strengths": [
          "Granular OAuth scopes, such as accounting.reports.profitandloss.read, required for apps created from 29 April 2026",
          "Deprecations announced with 12 to 13 months' notice on a dated changelog",
          "Public OpenAPI specs, with an Idempotency-Key parameter on 101 accounting operations",
          "Free Starter tier for 5 connections and a Demo Company with sample data",
          "ISO 27001:2022, SOC 2 reports and a vulnerability disclosure programme"
        ],
        "weaknesses": [
          "Developer docs, including the per-minute rate limits, only render with JavaScript",
          "1,000 calls a day per organisation on the free tier, 5,000 on paid",
          "Official MCP server idle since 5 June 2026, with no CI, no annotations and no registry entry",
          "Prices in AUD only, and App Certification is needed above 50 connections",
          "No security.txt and no public subprocessor list"
        ],
        "agentNotes": [
          "Send xero-tenant-id on every call. The token alone doesn't name the organisation",
          "A bill is an Invoice with Type ACCPAY, a sales invoice is ACCREC. There's no separate bills endpoint",
          "Send an Idempotency-Key on creates so a retry after a timeout doesn't post twice",
          "Use If-Modified-Since and pageSize up to 100 to stay inside 1,000 calls a day on Starter",
          "Set XERO_SCOPES to read scopes only when the agent shouldn't write. The MCP still lists its write and delete tools"
        ],
        "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": 75,
          "maintenance": 76,
          "payments": 35,
          "reliability": 68,
          "schema": 79,
          "security": 64,
          "transparency": 60
        },
        "provenanceScore": 90
      },
      "connect": {
        "http": "curl \"https://api.xero.com/api.xro/2.0/Invoices?Statuses=AUTHORISED\u0026page=1\" \\\n  -H \"Authorization: Bearer $XERO_ACCESS_TOKEN\" -H \"xero-tenant-id: $XERO_TENANT_ID\" -H \"Accept: application/json\"",
        "claudeCode": "claude mcp add xero -e XERO_CLIENT_ID=$XERO_CLIENT_ID -e XERO_CLIENT_SECRET=$XERO_CLIENT_SECRET -- npx -y @xeroapi/xero-mcp-server@latest",
        "config": {
          "mcpServers": {
            "xero": {
              "args": [
                "-y",
                "@xeroapi/xero-mcp-server@latest"
              ],
              "command": "npx",
              "env": {
                "XERO_CLIENT_ID": "${XERO_CLIENT_ID}",
                "XERO_CLIENT_SECRET": "${XERO_CLIENT_SECRET}",
                "XERO_SCOPES": "accounting.invoices accounting.contacts accounting.settings"
              }
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/accounting.ledger",
        "tool": "https://letme.dev/xero"
      },
      "area": "domain-data",
      "provenance": {
        "legalEntity": "Xero Limited",
        "domain": "xero.com",
        "domainRegistered": "1997-06-03",
        "endpointOnVendorDomain": true,
        "terms": "https://developer.xero.com/xero-developer-platform-terms-conditions/",
        "privacy": "https://www.xero.com/uk/legal/privacy/",
        "statusPage": "https://status.xero.com",
        "changelog": "https://developer.xero.com/changelog/",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "The developer terms name Xero Limited, New Zealand company 1830488. UK customers contract with Xero (UK) Limited, company 06071722, per the UK terms of use.",
          "The pricing page lists prices in AUD only. Overages are invoiced in arrears each calendar month under the commercial terms.",
          "Developer documentation pages return only metadata without JavaScript, so an agent can't read the rate limits or OAuth guides by fetching them. The OpenAPI specs on GitHub are the readable alternative."
        ],
        "score": 90
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/xero.json",
      "live": {
        "slug": "xero",
        "probe": {
          "target": "https://api.xero.com/api.xro/2.0",
          "method": "get",
          "lastAt": "2026-10-05T02:30:05.376863642Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 139,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 99.63,
          "uptime30d": 99.89,
          "p50ms24h": 162,
          "p95ms24h": 313,
          "samples24h": 273,
          "samples30d": 929,
          "days": [
            {
              "date": "2026-10-01",
              "probes": 109,
              "ok": 109
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 272,
              "ok": 271
            },
            {
              "date": "2026-10-05",
              "probes": 29,
              "ok": 29
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.xero.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-05T02:29:16.731271242Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@xeroapi/xero-mcp-server",
            "version": "0.0.17",
            "seenAt": "2026-10-04T16:44:24.072280577Z"
          },
          {
            "registry": "npm",
            "name": "xero-node",
            "version": "20.0.0",
            "seenAt": "2026-10-04T16:44:23.099924579Z"
          },
          {
            "registry": "pypi",
            "name": "xero-python",
            "version": "15.2.0",
            "released": "2026-09-04",
            "seenAt": "2026-10-04T16:44:23.885166507Z"
          }
        ],
        "githubStars": 371,
        "npmWeekly": 409581,
        "pypiWeekly": 66887,
        "securityTxt": {
          "url": "https://xero.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:57.485388689Z"
        },
        "domain": {
          "domain": "xero.com",
          "registered": "1997-06-03",
          "source": "https://rdap.verisign.com/com/v1/domain/xero.com",
          "checkedAt": "2026-10-04T13:09:35.716650808Z"
        },
        "pages": [
          {
            "url": "https://developer.xero.com/changelog/",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:42:40.551152039Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5c6194315997"
          },
          {
            "url": "https://developer.xero.com/pricing/",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:42:42.862647228Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d10e42decc3f"
          },
          {
            "url": "https://www.xero.com/uk/legal/privacy/",
            "kind": "privacy",
            "status": 304,
            "checkedAt": "2026-10-04T15:52:56.743879985Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "0bc24707273a"
          },
          {
            "url": "https://developer.xero.com/xero-developer-platform-terms-conditions/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:42:44.819907604Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d15f383fc531"
          }
        ],
        "updatedAt": "2026-10-05T02:30:05.376863642Z"
      }
    },
    "summary": "Xero API + MCP has a score of 67.4 (B) against Rutter Accounting API's 55.8 (C). Both do accounting ledger. The largest gap is security \u0026 auth, 28 points."
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/rutter-vs-xero",
    "json": "https://www.anchorterminal.com/compare/rutter-vs-xero.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/rutter-vs-xero.md",
    "slim": "https://www.anchorterminal.com/compare/rutter-vs-xero.min.md"
  },
  "markdown": "Xero API + MCP has a score of 67.4 (B) against Rutter Accounting API's 55.8 (C). Both do accounting ledger. The largest gap is security \u0026 auth, 28 points.\n\n- Rutter Accounting API: grade C, 55.8/100, rank #311 of 452. Markdown https://www.anchorterminal.com/tools/rutter.md · JSON https://www.anchorterminal.com/api/v1/tools/rutter.json\n- Xero API + MCP: grade B, 67.4/100, rank #143 of 452. Markdown https://www.anchorterminal.com/tools/xero.md · JSON https://www.anchorterminal.com/api/v1/tools/xero.json\n\n## Which one, for what\n\nPick Rutter Accounting API for nothing in particular (no category where it leads by five points or more).\n\nPick Xero API + MCP for agent ergonomics (+8), security \u0026 auth (+28), payments \u0026 pricing (+15), maintenance \u0026 community (+14), transparency \u0026 trust (+24).\n\n## Score by category\n\n| Category | Weight | Rutter Accounting API | Xero API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 67 | 68 | Xero API + MCP +1 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 79 | 79 | even |\n| Agent ergonomics | 13% (16.2 this run) | 67 | 75 | Xero API + MCP +8 |\n| Security \u0026 auth | 14% (17.5 this run) | 36 | 64 | Xero API + MCP +28 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 35 | Xero API + MCP +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 62 | 76 | Xero API + MCP +14 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 51 | 75 | Xero API + MCP +24 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **55.8 · C** | **67.4 · B** | |\n\n## Facts side by side\n\n| Fact | Rutter Accounting API | Xero API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Rutter | Xero |\n| Hosted endpoint | `https://production.rutterapi.com/versioned` | `https://api.xero.com/api.xro/2.0` |\n| Transports | HTTP | HTTP, stdio |\n| Auth | API key | OAuth |\n| Pricing | Paid | Freemium |\n| x402 | no | no |\n| Licence | none | MIT |\n| Tools exposed | none | 51 |\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 | no | no |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-24 | 2026-10-01 |\n| Popularity | none | 350 stars, 395k npm/wk, 64k PyPI/wk |\n| Agent reviews | 3/5 (2) | 3.5/5 (2) |\n\n## Verdicts\n\n**Rutter Accounting API.** Idempotency-Key header on writes, and prefer_sync writes that fall back to async after 30 seconds. Production prices are quote-only.\n\n**Xero API + MCP.** Granular OAuth scopes, such as accounting.reports.profitandloss.read, required for apps created from 29 April 2026. Developer docs, including the per-minute rate limits, only render with JavaScript.\n\n## Before you call either\n\n### Rutter Accounting API\n\n1. Send X-Rutter-Version: 2024-08-31 on every call\n2. Send an Idempotency-Key on every create so a retry after a timeout doesn't write twice\n3. Use response_mode=prefer_sync and handle the 202 async_response anyway\n4. Treat 452 as the ledger throttling you and 429 as Rutter's 500-per-10-seconds organisation limit\n5. Keep access_token out of logged URLs. The docs only show it as a query parameter\n\n### Xero API + MCP\n\n1. Send xero-tenant-id on every call. The token alone doesn't name the organisation\n2. A bill is an Invoice with Type ACCPAY, a sales invoice is ACCREC. There's no separate bills endpoint\n3. Send an Idempotency-Key on creates so a retry after a timeout doesn't post twice\n4. Use If-Modified-Since and pageSize up to 100 to stay inside 1,000 calls a day on Starter\n5. Set XERO_SCOPES to read scopes only when the agent shouldn't write. The MCP still lists its write and delete tools\n\n## Other comparisons with Rutter Accounting API or Xero API + MCP\n\n- [Apideck Accounting API + MCP vs Xero API + MCP](https://www.anchorterminal.com/compare/apideck-accounting-vs-xero.md)\n- [FreeAgent API vs Rutter Accounting API](https://www.anchorterminal.com/compare/freeagent-vs-rutter.md)\n- [FreeAgent API vs Xero API + MCP](https://www.anchorterminal.com/compare/freeagent-vs-xero.md)\n- [FreshBooks API vs Rutter Accounting API](https://www.anchorterminal.com/compare/freshbooks-vs-rutter.md)\n- [FreshBooks API vs Xero API + MCP](https://www.anchorterminal.com/compare/freshbooks-vs-xero.md)\n- [Merge Accounting API vs Xero API + MCP](https://www.anchorterminal.com/compare/merge-accounting-vs-xero.md)\n- [QuickBooks Online API + MCP vs Rutter Accounting API](https://www.anchorterminal.com/compare/quickbooks-online-vs-rutter.md)\n- [QuickBooks Online API + MCP vs Xero API + MCP](https://www.anchorterminal.com/compare/quickbooks-online-vs-xero.md)\n- [Invoice Ninja API vs Rutter Accounting API](https://www.anchorterminal.com/compare/invoice-ninja-vs-rutter.md)\n- [Invoice Ninja API vs Xero API + MCP](https://www.anchorterminal.com/compare/invoice-ninja-vs-xero.md)\n- [Apideck Accounting API + MCP vs Rutter Accounting API](https://www.anchorterminal.com/compare/apideck-accounting-vs-rutter.md)\n- [Merge Accounting API vs Rutter Accounting API](https://www.anchorterminal.com/compare/merge-accounting-vs-rutter.md)\n",
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        "name": "Rutter Accounting API vs Xero API + MCP",
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    "description": "Xero API + MCP has a score of 67.4 (B) against Rutter Accounting API's 55.8 (C). Both do accounting ledger. The largest gap is security \u0026 auth, 28 points. Category scores, facts, verdicts and agent notes side by side.",
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