{
  "data": {
    "a": {
      "slug": "anrok",
      "name": "Anrok",
      "vendor": "Anrok, Inc.",
      "vendorUrl": "https://www.anrok.com",
      "kind": "http-api",
      "category": "tax",
      "summary": "Anrok is a hosted sales tax, VAT and GST compliance platform for software and ecommerce sellers. Its API calculates tax and records transactions, and Anrok registers, files and remits. A remote MCP server gives AI assistants access to the account.",
      "url": "https://www.anchorterminal.com/tools/anrok",
      "markdownUrl": "https://www.anchorterminal.com/tools/anrok.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/anrok.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/anrok.json",
      "license": "Proprietary service under the Anrok SaaS Services Agreement. The OpenAPI file states \"All rights reserved\"",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.anrok.com",
      "packages": [],
      "auth": "mixed",
      "authNotes": "The API takes a seller API key as a Bearer token, in the form {sellerId}/{apiKeyId}/secret.{secret}. Any seller account can create keys under Settings, Manage API keys. A key has a note and an enabled switch, with no scopes found. The MCP server uses OAuth 2.1 with PKCE (S256) and dynamic client registration. The user signs in with an Anrok login and approves any of six scopes (certificates, customers, products, registrations, transactionsRead, transactionsWrite), and access follows that user's role. A seller account comes through Anrok's sales team, and MCP needs a plan that includes it.",
      "pricing": "paid",
      "pricingNotes": "Starter is $100 per market a month, a market being one jurisdiction where the seller registers and files. Calculation, filing and MCP are included, and Anrok says high-volume Starter sellers may pay additional fees. Custom is quoted by sales and adds the advanced data API and address resolution API. No free tier or self-serve signup was found. Every seller account has a sandbox, and Anrok says pre-sale sandbox access is available to companies evaluating Custom (https://www.anrok.com/pricing, checked 2026-10-08).",
      "priceSummary": "$100 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the API docs, the OpenAPI spec or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": 31,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://apidocs.anrok.com",
      "llmsTxt": "https://www.anrok.com/llms.txt",
      "openapi": "https://apidocs.anrok.com/openapi.yaml",
      "capabilities": [
        "tax.calculate",
        "tax.transactions",
        "tax.exemptions",
        "tax.filing"
      ],
      "tags": [
        "hosted",
        "paid",
        "closed-source",
        "api-key",
        "oauth",
        "mcp",
        "openapi",
        "sandbox",
        "sales-led",
        "status-page",
        "soc2"
      ],
      "lastRelease": "2026-10-06",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 61.6,
        "grade": "C",
        "agentReady": false,
        "rank": 321,
        "ranked": true,
        "rankOf": 629,
        "categoryRank": 2,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 70,
          "maintenance": 47,
          "payments": 15,
          "reliability": 88,
          "schema": 71,
          "security": 59,
          "transparency": 54
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "The public OpenAPI 3.1 spec covers 26 operations with typed error codes, and the remote MCP server uses OAuth 2.1 with six scopes and keeps voids, refunds and filing approval away from the model. Access needs a seller account arranged through sales, API keys carry no scopes, and no API changelog, SDK or subprocessor list was found.",
        "bestFor": "An agent working for a software or ecommerce seller that already uses Anrok and wants calculation, exemption certificates and filing status in one account.",
        "strengths": [
          "Public OpenAPI 3.1 spec at apidocs.anrok.com/openapi.yaml with 26 operations, 45 enums and typed error codes on 409 responses",
          "Remote MCP server at mcp.anrok.com/mcp with OAuth 2.1, PKCE, dynamic client registration, six scopes and a revocation endpoint",
          "MCP has no void, negation or filing-approval tool, and Anrok says all write operations are audited",
          "Rate limit of 10 requests a second is published, and 429 responses carry an integer Retry-After header",
          "Status page shows no incident since 10 March 2026, and the security page lists SOC 1 Type II and SOC 2 Type II"
        ],
        "weaknesses": [
          "No self-serve signup. Starter is $100 per market a month through \"Talk to us\", and Custom is quoted by sales",
          "API keys have a note and an enabled switch only. No scopes, read-only mode or expiry found in the help centre article",
          "No API changelog, deprecation policy or official SDK found. The spec is version 1.1 with no dated history",
          "List transactions, filings, tax ID validation, certificate requests and street-level international addresses are premium and enabled on request",
          "No security.txt, disclosure policy or public subprocessor list. The DPA is available on request only"
        ],
        "agentNotes": [
          "Send every call as a POST with a JSON body to https://api.anrok.com, including reads such as /v1/seller/products/list",
          "Call createEphemeral for a quote and createOrUpdate only when the invoice is final. createOrUpdate saves the transaction for filing",
          "Reuse the same transaction id on a retry. createOrUpdate overwrites by id, so a repeat doesn't create a second record",
          "Expect transactionFrozenForFiling once a transaction is on a filed return. Negate it with createNegation and write a new id with a suffix such as :s2",
          "On 429 wait the number of seconds in Retry-After. The default limit is 10 requests a second per seller account"
        ],
        "metrics": {
          "kind": "remote",
          "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": 61.6
          }
        ],
        "editorialScores": {
          "ergonomics": 70,
          "maintenance": 47,
          "payments": 15,
          "reliability": 88,
          "schema": 71,
          "security": 59,
          "transparency": 38
        },
        "provenanceScore": 70
      },
      "connect": {
        "http": "curl https://api.anrok.com/v1/seller/transactions/createOrUpdate \\\n  -H \"Authorization: Bearer $anrok_api_key\" \\\n  --json '{\"id\":\"my-first-transaction\",\"accountingDate\":\"2023-01-01\",\"currencyCode\":\"USD\",\"lineItems\":[{\"productExternalId\":\"saas-product\",\"amount\":1050}],\"customerId\":\"customer-1\",\"customerName\":\"Customer 1\",\"customerAddress\":{\"country\":\"us\",\"line1\":\"310 S Houston St\",\"city\":\"Dallas\",\"state\":\"TX\",\"zipCode\":\"75202\"}}'",
        "claudeCode": "claude mcp add --transport http anrok https://mcp.anrok.com/mcp",
        "config": {
          "mcpServers": {
            "anrok": {
              "url": "https://mcp.anrok.com/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/tax.calculate",
        "tool": "https://letme.dev/anrok"
      },
      "area": "domain-data",
      "unitPrices": [
        {
          "item": "Starter plan, per market",
          "unit": "month",
          "usd": 100,
          "note": "One market is one jurisdiction where the seller registers and files. Additional fees may apply at high transaction volumes"
        }
      ],
      "provenance": {
        "legalEntity": "Anrok, Inc.",
        "domain": "anrok.com",
        "domainRegistered": "2019-01-06",
        "endpointOnVendorDomain": true,
        "terms": "https://www.anrok.com/privacy-terms",
        "privacy": "https://www.anrok.com/privacy-terms",
        "statusPage": "https://anrok-status.com",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The terms of service (last updated July 2026) name Anrok, Inc., a Delaware corporation, and are governed by California law with courts in San Francisco.",
          "Terms, the privacy notice (effective May 2024) and the Remittances Services Agreement (effective October 2025) share one page at anrok.com/privacy-terms.",
          "The API answers at api.anrok.com and the MCP server at mcp.anrok.com, both on the vendor's domain.",
          "www.anrok.com/.well-known/security.txt returns 404. The security page names no disclosure address or bug bounty.",
          "The Statuspage site answers at anrok.statuspage.io and gives its address as anrok-status.com. We found no link to it on the pages we read.",
          "No API changelog was found. anrok.com/type/product-updates is a blog of product announcements, the latest dated 7 July 2026.",
          "RDAP for anrok.com gives a registration date of 2019-01-06."
        ],
        "score": 70
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/anrok.json",
      "live": {
        "slug": "anrok",
        "probe": {
          "target": "https://api.anrok.com",
          "method": "get",
          "lastAt": "2026-10-08T19:08:39.230561466Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 164,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 137,
          "p95ms24h": 188,
          "samples24h": 42,
          "samples30d": 42,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 42,
              "ok": 42
            }
          ]
        },
        "vendorStatus": {
          "page": "https://anrok-status.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-08T19:06:25.756415441Z"
        },
        "securityTxt": {
          "url": "https://anrok.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:57.64505605Z"
        },
        "pages": [
          {
            "url": "https://www.anrok.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:26:08.213536567Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "65c19e0d0b34"
          },
          {
            "url": "https://www.anrok.com/privacy-terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:26:10.475081688Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "4eecf8a9839f"
          }
        ],
        "updatedAt": "2026-10-08T19:08:39.230561466Z"
      }
    },
    "answer": "Anrok scores 61.6 (C) on agent readiness against Vertex O Series's 54.7 (C), and leads in 4 of 7 scored categories. Vertex O Series leads on maintenance \u0026 community and transparency \u0026 trust.",
    "b": {
      "slug": "vertex-tax",
      "name": "Vertex O Series",
      "vendor": "Vertex, Inc.",
      "vendorUrl": "https://www.vertexinc.com",
      "kind": "http-api",
      "category": "tax",
      "summary": "Vertex O Series is indirect tax software from Vertex, Inc. that calculates sales tax, use tax and VAT for a transaction and records it for reporting. Agents reach it through REST v2 APIs with OAuth client credentials.",
      "url": "https://www.anchorterminal.com/tools/vertex-tax",
      "markdownUrl": "https://www.anchorterminal.com/tools/vertex-tax.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/vertex-tax.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/vertex-tax.json",
      "license": "Proprietary service under a customer agreement with Vertex, Inc. that isn't published",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://calcconnect.vertexsmb.com/vertex-ws/v2",
      "packages": [],
      "auth": "oauth",
      "authNotes": "Access is granted through a sales contract. OAuth 2.0 client credentials follow. A Cloud Partition System Administrator creates an API credential under Account Settings, Security \u0026 Credentials, choosing the API and the partition it maps to. The client id and secret are exchanged at https://auth.vertexcloud.com/oauth/token with audience `verx://migration-api` for a bearer token that lasts 3,599 seconds. The secret is shown once and a credential can't be edited. Token requests are limited to 10 per 8 hours, and a caching endpoint at tokenguard.vertexcloud.com returns unexpired tokens. On-Premise and On-Demand deployments use a service account with the API User role and their own token URL.",
      "pricing": "paid",
      "pricingNotes": "No public prices. www.vertexinc.com/pricing returns 404 and the O Series product page asks visitors to book a demo. No free tier, trial or self-serve sandbox was found, and the security guide says to work with the Vertex sales team to establish an account. O Series Online Commerce documents a sandbox host that uses the same contracted credentials (checked 2026-10-08).",
      "priceSummary": "Paid",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the developer docs or the OpenAPI specs (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://developer.vertexinc.com/oseries/docs/quick-start",
      "openapi": "https://developer.vertexinc.com/oseries/openapi/vertex-tax-calculation-and-tax-gis-api.json",
      "capabilities": [
        "tax.calculate",
        "tax.transactions",
        "tax.exemptions",
        "tax.invoicing"
      ],
      "tags": [
        "hosted",
        "enterprise",
        "oauth",
        "openapi",
        "sales-led",
        "status-page",
        "soc2",
        "on-premise",
        "vat",
        "sales-tax"
      ],
      "lastRelease": "2026-09-25",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 54.7,
        "grade": "C",
        "agentReady": false,
        "rank": 464,
        "ranked": true,
        "rankOf": 629,
        "categoryRank": 5,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 51,
          "maintenance": 62,
          "payments": 0,
          "reliability": 65,
          "schema": 74,
          "security": 57,
          "transparency": 68
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "Public OpenAPI 3.0 specs cover calculation, transaction management, tax area lookup and tax configuration, and guides are served as Markdown. Access needs a sales contract. No price, free tier, sandbox signup, calculation rate limit, idempotency key or official SDK was found in the reviewed documentation.",
        "bestFor": "An agent working inside a company that already has an O Series licence, for quotes, invoice tax, tax area lookups and tax configuration across sales tax, use tax and VAT.",
        "strengths": [
          "OpenAPI 3.0 specs download without a login. Calculation and Tax GIS is version 2.9.0 with 14 operations, Tax Configuration v2.1.0 with 29",
          "Every guide page is served as Markdown when .md is added to its URL",
          "Each Cloud API credential maps to one API and one partition, and token requests carrying credentials in the URL are rejected",
          "status.vertexinc.com lists 26 components, and no incident from 10 July to 8 October 2026 names O Series Cloud",
          "The trust centre lists SOC 1 Type II and SOC 2 Type II reports for 2025 and five sub-processors with locations"
        ],
        "weaknesses": [
          "No public price, free tier or self-serve signup. The security guide sends new users to the Vertex sales team for an account",
          "No rate limit for the calculation API and no idempotency key were found in the reviewed documentation",
          "The standard token endpoint allows 10 access token requests per 8 hours for each client",
          "No official SDK, MCP server or llms.txt on the developer site was found",
          "The customer agreement, DPA and Service Level Exhibit sit behind an access request in the trust centre"
        ],
        "agentNotes": [
          "Cache the access token for its 3,599-second life. The standard token endpoint allows 10 requests per 8 hours, and tokenguard.vertexcloud.com returns a cached token",
          "Send no `Authorization: Bearer` header to /oauth/token, and put the client id and secret in the body or a Basic header. Credentials in the URL are rejected",
          "Set `saleMessageType` to QUOTATION for an estimate. INVOICE is stored for reporting and remittance",
          "Call GET /v2/transaction-exists/{transactionid} before retrying a failed INVOICE. No idempotency key is documented",
          "Delete, reverse or roll back a Cloud transaction within 90 days of calculation. Later requests can cause calculation errors or duplicates"
        ],
        "metrics": {
          "kind": "remote",
          "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": 54.7
          }
        ],
        "editorialScores": {
          "ergonomics": 51,
          "maintenance": 62,
          "payments": 0,
          "reliability": 65,
          "schema": 74,
          "security": 57,
          "transparency": 52
        },
        "provenanceScore": 84
      },
      "connect": {
        "http": "curl --location 'https://auth.vertexcloud.com/oauth/token' \\\n  --header 'Content-Type: application/x-www-form-urlencoded' \\\n  --data-urlencode 'client_id=\u003cyour-client-id\u003e' \\\n  --data-urlencode 'client_secret=\u003cyour-client-secret\u003e' \\\n  --data-urlencode 'audience=verx://migration-api' \\\n  --data-urlencode 'grant_type=client_credentials'"
      },
      "letme": {
        "capability": "https://letme.dev/tax.calculate",
        "tool": "https://letme.dev/vertex-tax"
      },
      "area": "domain-data",
      "provenance": {
        "legalEntity": "Vertex, Inc.",
        "domain": "vertexinc.com",
        "domainRegistered": "1998-09-01",
        "endpointOnVendorDomain": true,
        "terms": "https://www.vertexinc.com/terms-of-use",
        "privacy": "https://www.vertexinc.com/vertex-privacy-policy",
        "statusPage": "https://status.vertexinc.com",
        "changelog": "https://developer.vertexinc.com/oseries/docs/os-release",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The website terms of use and the privacy notice name Vertex, Inc., 2301 Renaissance Blvd., King of Prussia, PA 19406, and the terms choose Pennsylvania law. The privacy notice was last updated on 19 August 2026.",
          "Cloud API calls go to calcconnect.vertexsmb.com and auth.vertexcloud.com, which the vendor's developer docs name as its hosts. We didn't check the registration of those two domains. On-Demand deployments answer on \u003ccustomer\u003e.ondemand.vertexinc.com.",
          "www.vertexinc.com/.well-known/security.txt and /security.txt return 404.",
          "The terms URL is the website terms of use. The customer agreement, DPA, Security Exhibit and Service Level Exhibit are listed in the trust centre behind an access request.",
          "RDAP for vertexinc.com gives a registration date of 1998-09-01."
        ],
        "score": 84
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/vertex-tax.json",
      "live": {
        "slug": "vertex-tax",
        "probe": {
          "target": "https://calcconnect.vertexsmb.com/vertex-ws/v2",
          "method": "get",
          "lastAt": "2026-10-08T19:09:01.550123634Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 328,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 337,
          "p95ms24h": 389,
          "samples24h": 42,
          "samples30d": 42,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 42,
              "ok": 42
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.vertexinc.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-08T19:07:03.755128847Z"
        },
        "securityTxt": {
          "url": "https://vertexinc.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:42.909167355Z"
        },
        "pages": [
          {
            "url": "https://developer.vertexinc.com/oseries/docs/os-release",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:17:20.759088603Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "dbf33e43de24"
          },
          {
            "url": "https://www.vertexinc.com/vertex-privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:23.444238352Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "a77bfa05dfc0"
          },
          {
            "url": "https://www.vertexinc.com/terms-of-use",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:21.326104819Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "8a38170a4aef"
          }
        ],
        "updatedAt": "2026-10-08T19:09:01.550123634Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Anrok, Inc.",
        "b": "Vertex, Inc.",
        "name": "Vendor"
      },
      {
        "a": "https://api.anrok.com",
        "b": "https://calcconnect.vertexsmb.com/vertex-ws/v2",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "OAuth",
        "name": "Auth"
      },
      {
        "a": "Paid",
        "b": "Paid",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service under the Anrok SaaS Services Agreement. The OpenAPI file states \"All rights reserved\"",
        "b": "Proprietary service under a customer agreement with Vertex, Inc. that isn't published",
        "name": "Licence"
      },
      {
        "a": "31",
        "b": "none",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-06",
        "b": "2026-09-25",
        "name": "Last release"
      },
      {
        "a": "2026-07-01",
        "b": "no date given",
        "name": "Terms last updated"
      },
      {
        "a": "2026-07-01",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      }
    ],
    "faq": [
      {
        "answer": "Anrok scores 61.6 (C) on agent readiness against Vertex O Series's 54.7 (C), and leads in 4 of 7 scored categories. Vertex O Series leads on maintenance \u0026 community and transparency \u0026 trust.",
        "question": "Which is better for AI agents, Anrok or Vertex O Series?"
      },
      {
        "answer": "Anrok takes an API key or an OAuth sign-in. Vertex O Series uses an OAuth sign-in.",
        "question": "Do Anrok and Vertex O Series need an API key?"
      },
      {
        "answer": "Yes. Anrok has a hosted endpoint at https://api.anrok.com and Vertex O Series at https://calcconnect.vertexsmb.com/vertex-ws/v2.",
        "question": "Can an agent call Anrok and Vertex O Series without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 88 against 65",
          "Agent ergonomics, 70 against 51",
          "Payments \u0026 pricing, 15 against 0"
        ],
        "also": null,
        "goodFor": "An agent working for a software or ecommerce seller that already uses Anrok and wants calculation, exemption certificates and filing status in one account.",
        "slug": "anrok",
        "watchFor": "No self-serve signup. Starter is $100 per market a month through \"Talk to us\", and Custom is quoted by sales"
      },
      {
        "aheadOn": [
          "Maintenance \u0026 community, 62 against 47",
          "Transparency \u0026 trust, 68 against 54"
        ],
        "also": null,
        "goodFor": "An agent working inside a company that already has an O Series licence, for quotes, invoice tax, tax area lookups and tax configuration across sales tax, use tax and VAT.",
        "slug": "vertex-tax",
        "watchFor": "No public price, free tier or self-serve signup. The security guide sends new users to the Vertex sales team for an account"
      }
    ],
    "job": {
      "capability": "tax.calculate",
      "name": "Tax calculate"
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    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/anrok-vs-avalara.json",
        "title": "Anrok vs Avalara AvaTax",
        "url": "https://www.anchorterminal.com/compare/anrok-vs-avalara"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anrok-vs-quaderno.json",
        "title": "Anrok vs Quaderno",
        "url": "https://www.anchorterminal.com/compare/anrok-vs-quaderno"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anrok-vs-taxjar.json",
        "title": "Anrok vs TaxJar",
        "url": "https://www.anchorterminal.com/compare/anrok-vs-taxjar"
      },
      {
        "json": "https://www.anchorterminal.com/compare/avalara-vs-vertex-tax.json",
        "title": "Avalara AvaTax vs Vertex O Series",
        "url": "https://www.anchorterminal.com/compare/avalara-vs-vertex-tax"
      },
      {
        "json": "https://www.anchorterminal.com/compare/quaderno-vs-vertex-tax.json",
        "title": "Quaderno vs Vertex O Series",
        "url": "https://www.anchorterminal.com/compare/quaderno-vs-vertex-tax"
      },
      {
        "json": "https://www.anchorterminal.com/compare/taxjar-vs-vertex-tax.json",
        "title": "TaxJar vs Vertex O Series",
        "url": "https://www.anchorterminal.com/compare/taxjar-vs-vertex-tax"
      }
    ],
    "scores": [
      {
        "anrok": 88,
        "by": 23,
        "edge": "anrok",
        "key": "reliability",
        "name": "Reliability",
        "vertex-tax": 65,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "anrok": 71,
        "by": 3,
        "edge": "vertex-tax",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "vertex-tax": 74,
        "weight": 13
      },
      {
        "anrok": 70,
        "by": 19,
        "edge": "anrok",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "vertex-tax": 51,
        "weight": 13
      },
      {
        "anrok": 59,
        "by": 2,
        "edge": "anrok",
        "key": "security",
        "name": "Security \u0026 auth",
        "vertex-tax": 57,
        "weight": 14
      },
      {
        "anrok": 15,
        "by": 15,
        "edge": "anrok",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "vertex-tax": 0,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "anrok": 47,
        "by": 15,
        "edge": "vertex-tax",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "vertex-tax": 62,
        "weight": 7
      },
      {
        "anrok": 54,
        "by": 14,
        "edge": "vertex-tax",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "vertex-tax": 68,
        "weight": 7
      }
    ],
    "summary": "Anrok scores 61.6 (C) on agent readiness against Vertex O Series's 54.7 (C), and leads in 4 of 7 scored categories. Vertex O Series leads on maintenance \u0026 community and transparency \u0026 trust. Both do tax calculate.",
    "verdicts": {
      "anrok": "The public OpenAPI 3.1 spec covers 26 operations with typed error codes, and the remote MCP server uses OAuth 2.1 with six scopes and keeps voids, refunds and filing approval away from the model. Access needs a seller account arranged through sales, API keys carry no scopes, and no API changelog, SDK or subprocessor list was found.",
      "vertex-tax": "Public OpenAPI 3.0 specs cover calculation, transaction management, tax area lookup and tax configuration, and guides are served as Markdown. Access needs a sales contract. No price, free tier, sandbox signup, calculation rate limit, idempotency key or official SDK was found in the reviewed documentation."
    }
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  "markdown": "Anrok scores 61.6 (C) on agent readiness against Vertex O Series's 54.7 (C), and leads in 4 of 7 scored categories. Vertex O Series leads on maintenance \u0026 community and transparency \u0026 trust. Both do tax calculate.\n\n- Anrok: grade C, 61.6/100, rank #321 of 629. Markdown https://www.anchorterminal.com/tools/anrok.md · JSON https://www.anchorterminal.com/api/v1/tools/anrok.json\n- Vertex O Series: grade C, 54.7/100, rank #464 of 629. Markdown https://www.anchorterminal.com/tools/vertex-tax.md · JSON https://www.anchorterminal.com/api/v1/tools/vertex-tax.json\n\n## Which one, for what\n\n### Anrok (C)\n\nGood for: An agent working for a software or ecommerce seller that already uses Anrok and wants calculation, exemption certificates and filing status in one account.\n\nAhead on:\n- Reliability, 88 against 65\n- Agent ergonomics, 70 against 51\n- Payments \u0026 pricing, 15 against 0\n\nWatch for: No self-serve signup. Starter is $100 per market a month through \"Talk to us\", and Custom is quoted by sales\n\n### Vertex O Series (C)\n\nGood for: An agent working inside a company that already has an O Series licence, for quotes, invoice tax, tax area lookups and tax configuration across sales tax, use tax and VAT.\n\nAhead on:\n- Maintenance \u0026 community, 62 against 47\n- Transparency \u0026 trust, 68 against 54\n\nWatch for: No public price, free tier or self-serve signup. The security guide sends new users to the Vertex sales team for an account\n\n\n## Score by category\n\n| Category | Weight | Anrok | Vertex O Series | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 88 | 65 | Anrok +23 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 71 | 74 | Vertex O Series +3 |\n| Agent ergonomics | 13% (16.2 this run) | 70 | 51 | Anrok +19 |\n| Security \u0026 auth | 14% (17.5 this run) | 59 | 57 | Anrok +2 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 15 | 0 | Anrok +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 47 | 62 | Vertex O Series +15 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 54 | 68 | Vertex O Series +14 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **61.6 · C** | **54.7 · C** | |\n\n## Facts side by side\n\n| Fact | Anrok | Vertex O Series |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Anrok, Inc. | Vertex, Inc. |\n| Hosted endpoint | `https://api.anrok.com` | `https://calcconnect.vertexsmb.com/vertex-ws/v2` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | OAuth or key | OAuth |\n| Pricing | Paid | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under the Anrok SaaS Services Agreement. The OpenAPI file states \"All rights reserved\" | Proprietary service under a customer agreement with Vertex, Inc. that isn't published |\n| Tools exposed | 31 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-10-06 | 2026-09-25 |\n| Terms last updated | 2026-07-01 | no date given |\n| Privacy policy last updated | 2026-07-01 | no date given |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | yes | not found in the text |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n\n## Verdicts\n\n**Anrok.** The public OpenAPI 3.1 spec covers 26 operations with typed error codes, and the remote MCP server uses OAuth 2.1 with six scopes and keeps voids, refunds and filing approval away from the model. Access needs a seller account arranged through sales, API keys carry no scopes, and no API changelog, SDK or subprocessor list was found.\n\n**Vertex O Series.** Public OpenAPI 3.0 specs cover calculation, transaction management, tax area lookup and tax configuration, and guides are served as Markdown. Access needs a sales contract. No price, free tier, sandbox signup, calculation rate limit, idempotency key or official SDK was found in the reviewed documentation.\n\n## Before you call either\n\n### Anrok\n\n1. Send every call as a POST with a JSON body to https://api.anrok.com, including reads such as /v1/seller/products/list\n2. Call createEphemeral for a quote and createOrUpdate only when the invoice is final. createOrUpdate saves the transaction for filing\n3. Reuse the same transaction id on a retry. createOrUpdate overwrites by id, so a repeat doesn't create a second record\n4. Expect transactionFrozenForFiling once a transaction is on a filed return. Negate it with createNegation and write a new id with a suffix such as :s2\n5. On 429 wait the number of seconds in Retry-After. The default limit is 10 requests a second per seller account\n\n### Vertex O Series\n\n1. Cache the access token for its 3,599-second life. The standard token endpoint allows 10 requests per 8 hours, and tokenguard.vertexcloud.com returns a cached token\n2. Send no `Authorization: Bearer` header to /oauth/token, and put the client id and secret in the body or a Basic header. Credentials in the URL are rejected\n3. Set `saleMessageType` to QUOTATION for an estimate. INVOICE is stored for reporting and remittance\n4. Call GET /v2/transaction-exists/{transactionid} before retrying a failed INVOICE. No idempotency key is documented\n5. Delete, reverse or roll back a Cloud transaction within 90 days of calculation. Later requests can cause calculation errors or duplicates\n\n## Questions\n\n### Which is better for AI agents, Anrok or Vertex O Series?\n\nAnrok scores 61.6 (C) on agent readiness against Vertex O Series's 54.7 (C), and leads in 4 of 7 scored categories. Vertex O Series leads on maintenance \u0026 community and transparency \u0026 trust.\n\n### Do Anrok and Vertex O Series need an API key?\n\nAnrok takes an API key or an OAuth sign-in. Vertex O Series uses an OAuth sign-in.\n\n### Can an agent call Anrok and Vertex O Series without installing anything?\n\nYes. Anrok has a hosted endpoint at https://api.anrok.com and Vertex O Series at https://calcconnect.vertexsmb.com/vertex-ws/v2.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/anrok-vs-vertex-tax.json, and with the fewest tokens: https://www.anchorterminal.com/compare/anrok-vs-vertex-tax.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"anrok\", \"b\": \"vertex-tax\"}`. From a terminal: `anchor compare anrok vertex-tax`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/anrok.json and https://www.anchorterminal.com/api/v1/tools/vertex-tax.json\n\n## Other comparisons with Anrok or Vertex O Series\n\n- [Anrok vs Avalara AvaTax](https://www.anchorterminal.com/compare/anrok-vs-avalara.md)\n- [Anrok vs Quaderno](https://www.anchorterminal.com/compare/anrok-vs-quaderno.md)\n- [Anrok vs TaxJar](https://www.anchorterminal.com/compare/anrok-vs-taxjar.md)\n- [Avalara AvaTax vs Vertex O Series](https://www.anchorterminal.com/compare/avalara-vs-vertex-tax.md)\n- [Quaderno vs Vertex O Series](https://www.anchorterminal.com/compare/quaderno-vs-vertex-tax.md)\n- [TaxJar vs Vertex O Series](https://www.anchorterminal.com/compare/taxjar-vs-vertex-tax.md)\n",
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        "name": "Anrok vs Vertex O Series",
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    "description": "Anrok scores 61.6 (C) on agent readiness against Vertex O Series's 54.7 (C), and leads in 4 of 7 scored categories. Vertex O Series leads on maintenance \u0026 community and transparency \u0026 trust. Both do tax calculate. Category scores, facts, verdicts and agent notes side by side.",
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