{
  "data": {
    "a": {
      "slug": "avalara",
      "name": "Avalara AvaTax",
      "vendor": "Avalara, Inc.",
      "vendorUrl": "https://www.avalara.com",
      "kind": "http-api",
      "category": "tax",
      "summary": "Avalara AvaTax calculates sales tax, VAT and GST for a transaction and records it for reporting. Agents reach it through the AvaTax REST v2 API or a hosted MCP server, with separate Avalara products for returns, exemption certificates and e-invoicing.",
      "url": "https://www.anchorterminal.com/tools/avalara",
      "markdownUrl": "https://www.anchorterminal.com/tools/avalara.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/avalara.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/avalara.json",
      "repo": "https://github.com/avadev/mcp",
      "license": "Proprietary service under the Avalara Service Terms. The SDKs on GitHub are Apache-2.0. The MCP repository holds a README only, with no licence file",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://rest.avatax.com/api/v2",
      "packages": [
        {
          "registry": "npm",
          "name": "avatax"
        },
        {
          "registry": "pypi",
          "name": "Avalara"
        }
      ],
      "auth": "mixed",
      "authNotes": "The MCP server uses OAuth through identity.avalara.com (sandbox ai-sbx.avlr.sh) with one scope, avalara_mcp, and a person signs in and consents in a browser. The identity server advertises PKCE (S256), a public client registration endpoint, device code and client credentials grants. The REST API accepts HTTP Basic with a username and password or with an account ID and licence key, or a bearer token from the identity server. Licence keys are account-wide, can be named, and a reset revokes the old key at once. What a caller can do follows the user's security role, such as AccountAdmin or CompanyUser. Access is self-serve through the trial signup, with no app review found.",
      "pricing": "paid",
      "pricingNotes": "Free 90-day AvaTax trial, no card, limited to 5 orders and 5 invoices a minute and 1,000 transactions a day, for evaluation with test data only under the AvaTax terms. Paid plans on the public pricing page are Core Compliance at $79 a state a month ($799 a state a year) and Core Compliance with SST services at $69 ($699 a year), both for businesses under $50M in annual revenue and both including AvaTax calculation and managed returns. Above that, plans are quoted. Avalara says price varies with products, states, integrations and monthly transaction volume, and no price per transaction or per API call is published (https://www.avalara.com/us/en/products/sales-and-use-tax/pricing.html, checked 2026-10-08).",
      "priceSummary": "$79 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the developer docs, the AvaTax API reference or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": 10,
      "popularity": {
        "githubStars": 5,
        "npmWeekly": 330649,
        "pypiWeekly": 37689,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://developer.avalara.com/",
      "llmsTxt": "https://developer.avalara.com/llms.txt",
      "openapi": "https://sandbox-rest.avatax.com/swagger/v2/swagger.json",
      "registryName": "com.avalara/avatax",
      "capabilities": [
        "tax.calculate",
        "tax.transactions",
        "tax.exemptions",
        "tax.filing",
        "tax.invoicing"
      ],
      "tags": [
        "hosted",
        "paid",
        "free-trial",
        "mcp",
        "oauth",
        "openapi",
        "llms-txt",
        "typescript",
        "python",
        "java",
        "csharp",
        "sandbox",
        "status-page",
        "soc2",
        "iso27001"
      ],
      "lastRelease": "2026-09-16",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 68.8,
        "grade": "B",
        "agentReady": false,
        "rank": 172,
        "ranked": true,
        "rankOf": 722,
        "categoryRank": 1,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 84,
          "maintenance": 79,
          "payments": 30,
          "reliability": 62,
          "schema": 85,
          "security": 65,
          "transparency": 79
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "The REST API has a public Swagger file with 491 operations, a Markdown page per endpoint and a 90-day trial with no card. Production rate limits and prices per transaction are not published, the API patch notes stop at April 2023, and the tax calculation service was degraded for about 23 hours on 5 and 6 October 2026.",
        "bestFor": "An agent that must calculate and record US sales tax at address level, with VAT and GST in other countries, and hand the records to filing.",
        "strengths": [
          "Public Swagger 2.0 file with 491 operations, plus llms.txt and a Markdown page with a curl example for each endpoint",
          "Hosted MCP server at mcp.avalara.com/avatax with ten documented tools, OAuth sign-in and an entry in the official MCP registry as com.avalara/avatax",
          "90-day AvaTax trial with no card, limited to 5 orders and 5 invoices a minute and 1,000 transactions a day",
          "Errors return a code, number, description and help link, from a published list of 429 codes",
          "SDKs in six languages under Apache-2.0, released monthly, latest 26.9.0 on 16 September 2026"
        ],
        "weaknesses": [
          "Production rate limits are not published. The only numbers found are the trial limits and 5 calls a minute on report exports",
          "No price per transaction. Public plans are $79 a state a month, or $69 with SST services, and larger accounts are quoted",
          "The API patch notes page ends at version 23.4.1 of 26 April 2023, while production reports 26.9.2",
          "Tax calculation was degraded from 22:32 PT on 5 October to 21:20 PT on 6 October 2026, per status.avalara.com",
          "REST guides lead with HTTP Basic using a username and password or an account-wide licence key, and the MCP server has one scope, avalara_mcp"
        ],
        "agentNotes": [
          "Omit `type` or send SalesOrder for an estimate. A type ending in Invoice is recorded, and `commit` set to true locks it for reporting",
          "Retry a timed-out invoice with CreateOrAdjustTransaction, not CreateTransaction, which errors when a committed transaction has the same code",
          "Use sandbox-rest.avatax.com with sandbox credentials for tests. Production is rest.avatax.com and the two accounts are separate",
          "Add `$include=SummaryOnly` or LinesOnly to shrink transaction responses, and page lists with `$top` (1,000 at most) and `$skip`",
          "Call /api/v2/utilities/ping first. It answers without credentials and shows whether the credentials sent were accepted"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 68.8
          }
        ],
        "editorialScores": {
          "ergonomics": 84,
          "maintenance": 79,
          "payments": 30,
          "reliability": 62,
          "schema": 85,
          "security": 65,
          "transparency": 69
        },
        "provenanceScore": 88
      },
      "connect": {
        "install": "npm install avatax",
        "http": "curl -X POST \"https://sandbox-rest.avatax.com/api/v2/transactions/create\" \\\n  -H \"Authorization: Basic \u003ccredentials\u003e\" \\\n  -H \"Content-Type: application/json\" \\\n  -H \"Accept: application/json\" \\\n  -d @transaction.json",
        "config": {
          "mcpServers": {
            "avalara-avatax": {
              "type": "http",
              "url": "https://mcp.avalara.com/avatax"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/tax.calculate",
        "tool": "https://letme.dev/avalara"
      },
      "area": "domain-data",
      "unitPrices": [
        {
          "item": "Core Compliance (AvaTax and managed returns)",
          "unit": "month",
          "usd": 79,
          "note": "per state, billed monthly; $799 per state billed yearly; annual revenue under $50M"
        },
        {
          "item": "Core Compliance + SST Services",
          "unit": "month",
          "usd": 69,
          "note": "per state, billed monthly; $699 per state billed yearly; qualifying sellers"
        },
        {
          "item": "AvaTax free trial",
          "unit": "month",
          "usd": 0,
          "note": "90 days, 1,000 transactions a day, test data only"
        }
      ],
      "provenance": {
        "legalEntity": "Avalara, Inc.",
        "domain": "avalara.com",
        "domainRegistered": "2003-12-08",
        "endpointOnVendorDomain": true,
        "terms": "https://legal.avalara.com/",
        "privacy": "https://legal.avalara.com/dpa",
        "statusPage": "https://status.avalara.com",
        "changelog": "https://developer.avalara.com/patch-notes/",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The Service Terms (version 7.1, effective 1 October 2026) name Avalara, Inc., a Washington corporation at 512 S. Mangum St. #100, Durham, NC 27701, as the contracting entity under New York law, and Avalara Europe Ltd. (England and Wales, No. 8446351) for European customers.",
          "The MCP server answers at mcp.avalara.com. The REST API answers at rest.avatax.com and sandbox-rest.avatax.com. RDAP gives avatax.com a registration date of 2005-01-27, and Avalara's own documentation names those hosts.",
          "www.avalara.com/.well-known/security.txt and developer.avalara.com/.well-known/security.txt return 404. Reports go through the vulnerability disclosure programme at https://www.avalara.com/us/en/legal/responsible-disclosure.html.",
          "The patch notes page lists API releases up to 23.4.1 on 26 April 2023 and nothing later. Current releases are visible only as the version in /api/v2/utilities/ping and as SDK tags on GitHub.",
          "RDAP for avalara.com gives a registration date of 2003-12-08. Privacy notices, the DPA and the subprocessor list are published together at legal.avalara.com/dpa."
        ],
        "score": 88
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/avalara.json",
      "live": {
        "slug": "avalara",
        "probe": {
          "target": "https://rest.avatax.com/api/v2",
          "method": "get",
          "lastAt": "2026-10-08T21:12:04.567161514Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 309,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 324,
          "p95ms24h": 397,
          "samples24h": 64,
          "samples30d": 64,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 64,
              "ok": 64
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.avalara.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-08T21:05:51.964398199Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "avatax",
            "version": "26.9.0",
            "seenAt": "2026-10-08T16:00:19.162430293Z"
          },
          {
            "registry": "pypi",
            "name": "Avalara",
            "version": "26.9.0",
            "released": "2026-09-16",
            "seenAt": "2026-10-08T16:00:23.243148692Z"
          }
        ],
        "githubStars": 5,
        "npmWeekly": 330649,
        "pypiWeekly": 37689,
        "securityTxt": {
          "url": "https://avalara.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:36.211738872Z"
        },
        "pages": [
          {
            "url": "https://developer.avalara.com/patch-notes/",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:17:04.362764489Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "12c3dd83a580"
          },
          {
            "url": "https://www.avalara.com/us/en/products/sales-and-use-tax/pricing.html",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:26:21.240577756Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "ab348ca6c51d"
          },
          {
            "url": "https://legal.avalara.com/dpa",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:21:25.299594822Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "1d325483f118"
          },
          {
            "url": "https://legal.avalara.com/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:21:22.64286746Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "ac0c20791779"
          }
        ],
        "updatedAt": "2026-10-08T21:12:04.567161514Z"
      }
    },
    "answer": "Avalara AvaTax scores 68.8 (B) on agent readiness against TaxCloud's 57.4 (C), and leads in 5 of 7 scored categories.",
    "b": {
      "slug": "taxcloud",
      "name": "TaxCloud",
      "vendor": "The Federal Tax Authority, LLC (TaxCloud)",
      "vendorUrl": "https://taxcloud.com",
      "kind": "http-api",
      "category": "tax",
      "summary": "TaxCloud is a US sales tax service from The Federal Tax Authority, LLC. Its v3 REST API calculates tax on carts, records orders and refunds for filing, stores exemption certificates, verifies addresses and searches product tax codes.",
      "url": "https://www.anchorterminal.com/tools/taxcloud",
      "markdownUrl": "https://www.anchorterminal.com/tools/taxcloud.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/taxcloud.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/taxcloud.json",
      "repo": "https://github.com/FedTax/taxcloud-agent-skills",
      "license": "Proprietary service under TaxCloud's terms of service. The agent skills repository on GitHub is Apache-2.0",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.v3.taxcloud.com",
      "packages": [],
      "auth": "api-key",
      "authNotes": "A self-serve API key, generated by a signed-in user at Developer \u003e API in the web app and sent as `X-API-KEY`. Each request also carries a connection ID in the path, created at Integrations \u003e Custom API. The v3 APIs accept a JWT as `Authorization: Bearer` too, and the docs direct integrations to the key. Keys can be listed, created and deleted through the Management API, where creating one needs a signed-in user token. No OAuth, app review or partner approval applies.",
      "pricing": "paid",
      "pricingNotes": "The API needs the Premium plan, from $79 a month for 200 orders, with eight public tiers up to $1,299 for 40,000. Each calculation or address verification counts as a tenth of an order. A 30-day trial with Premium access needs no card, so an agent's owner can start without a contract. There is no sandbox (checked 2026-10-08).",
      "priceSummary": "$79 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the API reference, the guides or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 0,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://docs.taxcloud.com/",
      "llmsTxt": "https://docs.taxcloud.com/llms.txt",
      "openapi": "https://docs.taxcloud.com/openapi/api-reference.json",
      "capabilities": [
        "tax.calculate",
        "tax.transactions",
        "tax.exemptions",
        "shipping.address-validation"
      ],
      "tags": [
        "hosted",
        "closed-source",
        "api-key",
        "openapi",
        "llms-txt",
        "no-card",
        "us-only",
        "status-page",
        "agent-skills"
      ],
      "lastRelease": "2026-09-24",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 57.4,
        "grade": "C",
        "agentReady": false,
        "rank": 475,
        "ranked": true,
        "rankOf": 722,
        "categoryRank": 6,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 64,
          "maintenance": 57,
          "payments": 34,
          "reliability": 66,
          "schema": 75,
          "security": 45,
          "transparency": 51
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "A 30-operation REST API with a public OpenAPI 3.1 contract, llms.txt, Markdown docs and a 30-day trial that needs no card. The vendor publishes no rate limit numbers, no SLA, no API changelog and no official v3 client library, and the security page names no audit or certification.",
        "bestFor": "An agent working for a US seller that needs tax on a cart at checkout, a record of orders and refunds for filing, and exemption certificates by customer.",
        "strengths": [
          "OpenAPI 3.1 documents for the Sales Tax API (16 operations) and Management API (14), plus llms.txt and a Markdown copy of every docs page",
          "30-day trial with Premium plan access, the API included, and no card or payment method needed",
          "Refunds take an `idempotencyKey`, carts upsert by `cartId`, and a repeated void returns 204",
          "Errors are `application/problem+json` with `title`, `status`, `detail` and an `errors` list, which we confirmed on a 401",
          "Access keys can be listed, created and deleted through the Management API, and the bulk product delete needs a `confirm_delete` parameter"
        ],
        "weaknesses": [
          "No rate limit numbers are published. The API page says only that the threshold is high and subject to change",
          "The security page says TaxCloud does not offer an SLA, and the terms supply the service as is",
          "No API changelog or deprecation policy was found, and the legacy v1 API has no published end date",
          "No official client library for v3 was found. The vendor's PHP library targets v1 and was last changed in June 2024",
          "Each calculation or address check counts as a tenth of an order against the plan, test connections included"
        ],
        "agentNotes": [
          "Send `X-API-KEY` on every call and put the connection ID in the path, as in `/tax/connections/{connectionId}/carts`. A wrong ID returns 404",
          "Mark nexus states active in the account first. With none active the API returns zero tax and no error",
          "Use a separate test connection. There is no sandbox, and orders on a live connection go into filing",
          "Pass a stable `idempotencyKey` on refunds, and never convert the same cart twice. A second conversion creates a duplicate liability",
          "Void a wrong order before 12:00 AM Eastern on the 10th of the month after its `completedDate`. Later requests return 422"
        ],
        "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": 57.4
          }
        ],
        "editorialScores": {
          "ergonomics": 64,
          "maintenance": 57,
          "payments": 34,
          "reliability": 66,
          "schema": 75,
          "security": 45,
          "transparency": 33
        },
        "provenanceScore": 69
      },
      "connect": {
        "install": "npx skills add FedTax/taxcloud-agent-skills",
        "http": "curl https://api.v3.taxcloud.com/tax/connections/\u003cconnectionId\u003e/ping \\\n  -H \"X-API-KEY: \u003capiKey\u003e\" \\\n  -H \"Accept: application/json\"",
        "claudeCode": "claude mcp add --transport http taxcloud-docs https://docs.taxcloud.com/_mcp/server"
      },
      "letme": {
        "capability": "https://letme.dev/tax.calculate",
        "tool": "https://letme.dev/taxcloud"
      },
      "area": "domain-data",
      "unitPrices": [
        {
          "item": "Premium, 200 orders a month",
          "unit": "month",
          "usd": 79,
          "note": "the plan with API access; a calculation or address verification counts as a tenth of an order"
        },
        {
          "item": "Premium, 400 orders a month",
          "unit": "month",
          "usd": 149,
          "note": "monthly billing"
        },
        {
          "item": "Premium, 1,000 orders a month",
          "unit": "month",
          "usd": 299,
          "note": "monthly billing"
        },
        {
          "item": "Premium, 10,000 orders a month",
          "unit": "month",
          "usd": 749,
          "note": "monthly billing"
        },
        {
          "item": "Starter, 100 orders a month",
          "unit": "month",
          "usd": 19,
          "note": "no API access"
        },
        {
          "item": "Filing subscription, one return a month",
          "unit": "month",
          "usd": 39,
          "note": "separate from the order plan; surcharges for Colorado and Louisiana"
        }
      ],
      "provenance": {
        "legalEntity": "The Federal Tax Authority, LLC (d/b/a TaxCloud)",
        "domain": "taxcloud.com",
        "domainRegistered": "2003-10-06",
        "endpointOnVendorDomain": true,
        "terms": "https://taxcloud.com/legal/tos/",
        "privacy": "https://taxcloud.com/legal/privacy-policy/",
        "statusPage": "https://status.taxcloud.com",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The terms of service (last updated March 2025) are with The Federal Tax Authority, LLC, a Washington limited liability company, and govern access to and use of the services. No separate API terms were found.",
          "The privacy policy (last updated 1 February 2025) covers the website including the TaxCloud platform. No data processing agreement or sub-processor list was found on the legal page.",
          "The API host is api.v3.taxcloud.com and the legacy host is api.taxcloud.net. RDAP gives a registration date of 2003-10-06 for taxcloud.com, with Network Solutions, LLC as registrar.",
          "status.taxcloud.com redirects to https://taxcloud.statuspage.datadoghq.com, a Datadog status page created on 28 January 2026.",
          "taxcloud.com/.well-known/security.txt returns 404.",
          "No changelog was found. docs.taxcloud.com/changelog returns 404."
        ],
        "score": 69
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/taxcloud.json",
      "live": {
        "slug": "taxcloud",
        "probe": {
          "target": "https://api.v3.taxcloud.com",
          "method": "get",
          "lastAt": "2026-10-08T21:12:23.03593912Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 337,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 339,
          "p95ms24h": 377,
          "samples24h": 21,
          "samples30d": 21,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 21,
              "ok": 21
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.taxcloud.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-08T19:39:15.801163493Z"
        },
        "updatedAt": "2026-10-08T21:12:23.03593912Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Avalara, Inc.",
        "b": "The Federal Tax Authority, LLC (TaxCloud)",
        "name": "Vendor"
      },
      {
        "a": "https://rest.avatax.com/api/v2",
        "b": "https://api.v3.taxcloud.com",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Paid",
        "b": "Paid",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service under the Avalara Service Terms. The SDKs on GitHub are Apache-2.0. The MCP repository holds a README only, with no licence file",
        "b": "Proprietary service under TaxCloud's terms of service. The agent skills repository on GitHub is Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "10",
        "b": "none",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "com.avalara/avatax",
        "b": "not listed",
        "name": "MCP registry"
      },
      {
        "a": "2026-09-16",
        "b": "2026-09-24",
        "name": "Last release"
      },
      {
        "a": "2023-05-01",
        "b": "2025-03-01",
        "name": "Terms last updated"
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      {
        "a": "2022-08-08",
        "b": "2025-02-01",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "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"
      },
      {
        "a": "5 stars, 331k npm/wk, 38k PyPI/wk",
        "b": "0 stars",
        "name": "Popularity"
      }
    ],
    "faq": [
      {
        "answer": "Avalara AvaTax scores 68.8 (B) on agent readiness against TaxCloud's 57.4 (C), and leads in 5 of 7 scored categories.",
        "question": "Which is better for AI agents, Avalara AvaTax or TaxCloud?"
      },
      {
        "answer": "Avalara AvaTax takes an API key or an OAuth sign-in. TaxCloud needs an API key.",
        "question": "Do Avalara AvaTax and TaxCloud need an API key?"
      },
      {
        "answer": "Yes. Avalara AvaTax has a hosted endpoint at https://rest.avatax.com/api/v2 and TaxCloud at https://api.v3.taxcloud.com.",
        "question": "Can an agent call Avalara AvaTax and TaxCloud without installing anything?"
      }
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        "aheadOn": [
          "Schema \u0026 documentation, 85 against 75",
          "Agent ergonomics, 84 against 64",
          "Security \u0026 auth, 65 against 45",
          "Maintenance \u0026 community, 79 against 57",
          "Transparency \u0026 trust, 79 against 51"
        ],
        "also": null,
        "goodFor": "An agent that must calculate and record US sales tax at address level, with VAT and GST in other countries, and hand the records to filing.",
        "slug": "avalara",
        "watchFor": "Production rate limits are not published. The only numbers found are the trial limits and 5 calls a minute on report exports"
      },
      {
        "aheadOn": null,
        "also": [
          "Free to start without a card"
        ],
        "goodFor": "An agent working for a US seller that needs tax on a cart at checkout, a record of orders and refunds for filing, and exemption certificates by customer.",
        "slug": "taxcloud",
        "watchFor": "No rate limit numbers are published. The API page says only that the threshold is high and subject to change"
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      "capability": "tax.calculate",
      "name": "Tax calculate"
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    "others": [
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      {
        "json": "https://www.anchorterminal.com/compare/anrok-vs-taxcloud.json",
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        "url": "https://www.anchorterminal.com/compare/anrok-vs-taxcloud"
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      {
        "json": "https://www.anchorterminal.com/compare/avalara-vs-fonoa.json",
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        "json": "https://www.anchorterminal.com/compare/avalara-vs-kintsugi.json",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/avalara-vs-quaderno.json",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/avalara-vs-taxjar.json",
        "title": "Avalara AvaTax vs TaxJar",
        "url": "https://www.anchorterminal.com/compare/avalara-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"
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        "title": "TaxCloud vs Vertex O Series",
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        "url": "https://www.anchorterminal.com/compare/taxcloud-vs-zamp"
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    "scores": [
      {
        "avalara": 62,
        "by": 4,
        "edge": "taxcloud",
        "key": "reliability",
        "name": "Reliability",
        "taxcloud": 66,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "avalara": 85,
        "by": 10,
        "edge": "avalara",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "taxcloud": 75,
        "weight": 13
      },
      {
        "avalara": 84,
        "by": 20,
        "edge": "avalara",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "taxcloud": 64,
        "weight": 13
      },
      {
        "avalara": 65,
        "by": 20,
        "edge": "avalara",
        "key": "security",
        "name": "Security \u0026 auth",
        "taxcloud": 45,
        "weight": 14
      },
      {
        "avalara": 30,
        "by": 4,
        "edge": "taxcloud",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "taxcloud": 34,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "avalara": 79,
        "by": 22,
        "edge": "avalara",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "taxcloud": 57,
        "weight": 7
      },
      {
        "avalara": 79,
        "by": 28,
        "edge": "avalara",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "taxcloud": 51,
        "weight": 7
      }
    ],
    "summary": "Avalara AvaTax scores 68.8 (B) on agent readiness against TaxCloud's 57.4 (C), and leads in 5 of 7 scored categories. Both do tax calculate.",
    "verdicts": {
      "avalara": "The REST API has a public Swagger file with 491 operations, a Markdown page per endpoint and a 90-day trial with no card. Production rate limits and prices per transaction are not published, the API patch notes stop at April 2023, and the tax calculation service was degraded for about 23 hours on 5 and 6 October 2026.",
      "taxcloud": "A 30-operation REST API with a public OpenAPI 3.1 contract, llms.txt, Markdown docs and a 30-day trial that needs no card. The vendor publishes no rate limit numbers, no SLA, no API changelog and no official v3 client library, and the security page names no audit or certification."
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  "markdown": "Avalara AvaTax scores 68.8 (B) on agent readiness against TaxCloud's 57.4 (C), and leads in 5 of 7 scored categories. Both do tax calculate.\n\n- Avalara AvaTax: grade B, 68.8/100, rank #172 of 722. Markdown https://www.anchorterminal.com/tools/avalara.md · JSON https://www.anchorterminal.com/api/v1/tools/avalara.json\n- TaxCloud: grade C, 57.4/100, rank #475 of 722. Markdown https://www.anchorterminal.com/tools/taxcloud.md · JSON https://www.anchorterminal.com/api/v1/tools/taxcloud.json\n\n## Which one, for what\n\n### Avalara AvaTax (B)\n\nGood for: An agent that must calculate and record US sales tax at address level, with VAT and GST in other countries, and hand the records to filing.\n\nAhead on:\n- Schema \u0026 documentation, 85 against 75\n- Agent ergonomics, 84 against 64\n- Security \u0026 auth, 65 against 45\n- Maintenance \u0026 community, 79 against 57\n- Transparency \u0026 trust, 79 against 51\n\nWatch for: Production rate limits are not published. The only numbers found are the trial limits and 5 calls a minute on report exports\n\n### TaxCloud (C)\n\nGood for: An agent working for a US seller that needs tax on a cart at checkout, a record of orders and refunds for filing, and exemption certificates by customer.\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: No rate limit numbers are published. The API page says only that the threshold is high and subject to change\n\n\n## Score by category\n\n| Category | Weight | Avalara AvaTax | TaxCloud | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 62 | 66 | TaxCloud +4 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 85 | 75 | Avalara AvaTax +10 |\n| Agent ergonomics | 13% (16.2 this run) | 84 | 64 | Avalara AvaTax +20 |\n| Security \u0026 auth | 14% (17.5 this run) | 65 | 45 | Avalara AvaTax +20 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 34 | TaxCloud +4 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 79 | 57 | Avalara AvaTax +22 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 79 | 51 | Avalara AvaTax +28 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **68.8 · B** | **57.4 · C** | |\n\n## Facts side by side\n\n| Fact | Avalara AvaTax | TaxCloud |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Avalara, Inc. | The Federal Tax Authority, LLC (TaxCloud) |\n| Hosted endpoint | `https://rest.avatax.com/api/v2` | `https://api.v3.taxcloud.com` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | OAuth or key | API key |\n| Pricing | Paid | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under the Avalara Service Terms. The SDKs on GitHub are Apache-2.0. The MCP repository holds a README only, with no licence file | Proprietary service under TaxCloud's terms of service. The agent skills repository on GitHub is Apache-2.0 |\n| Tools exposed | 10 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | `com.avalara/avatax` | not listed |\n| Last release | 2026-09-16 | 2026-09-24 |\n| Terms last updated | 2023-05-01 | 2025-03-01 |\n| Privacy policy last updated | 2022-08-08 | 2025-02-01 |\n| Customer content may train models | not found in the text | yes |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | yes | yes |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 5 stars, 331k npm/wk, 38k PyPI/wk | 0 stars |\n\n## Verdicts\n\n**Avalara AvaTax.** The REST API has a public Swagger file with 491 operations, a Markdown page per endpoint and a 90-day trial with no card. Production rate limits and prices per transaction are not published, the API patch notes stop at April 2023, and the tax calculation service was degraded for about 23 hours on 5 and 6 October 2026.\n\n**TaxCloud.** A 30-operation REST API with a public OpenAPI 3.1 contract, llms.txt, Markdown docs and a 30-day trial that needs no card. The vendor publishes no rate limit numbers, no SLA, no API changelog and no official v3 client library, and the security page names no audit or certification.\n\n## Before you call either\n\n### Avalara AvaTax\n\n1. Omit `type` or send SalesOrder for an estimate. A type ending in Invoice is recorded, and `commit` set to true locks it for reporting\n2. Retry a timed-out invoice with CreateOrAdjustTransaction, not CreateTransaction, which errors when a committed transaction has the same code\n3. Use sandbox-rest.avatax.com with sandbox credentials for tests. Production is rest.avatax.com and the two accounts are separate\n4. Add `$include=SummaryOnly` or LinesOnly to shrink transaction responses, and page lists with `$top` (1,000 at most) and `$skip`\n5. Call /api/v2/utilities/ping first. It answers without credentials and shows whether the credentials sent were accepted\n\n### TaxCloud\n\n1. Send `X-API-KEY` on every call and put the connection ID in the path, as in `/tax/connections/{connectionId}/carts`. A wrong ID returns 404\n2. Mark nexus states active in the account first. With none active the API returns zero tax and no error\n3. Use a separate test connection. There is no sandbox, and orders on a live connection go into filing\n4. Pass a stable `idempotencyKey` on refunds, and never convert the same cart twice. A second conversion creates a duplicate liability\n5. Void a wrong order before 12:00 AM Eastern on the 10th of the month after its `completedDate`. Later requests return 422\n\n## Questions\n\n### Which is better for AI agents, Avalara AvaTax or TaxCloud?\n\nAvalara AvaTax scores 68.8 (B) on agent readiness against TaxCloud's 57.4 (C), and leads in 5 of 7 scored categories.\n\n### Do Avalara AvaTax and TaxCloud need an API key?\n\nAvalara AvaTax takes an API key or an OAuth sign-in. TaxCloud needs an API key.\n\n### Can an agent call Avalara AvaTax and TaxCloud without installing anything?\n\nYes. Avalara AvaTax has a hosted endpoint at https://rest.avatax.com/api/v2 and TaxCloud at https://api.v3.taxcloud.com.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/avalara-vs-taxcloud.json, and with the fewest tokens: https://www.anchorterminal.com/compare/avalara-vs-taxcloud.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"avalara\", \"b\": \"taxcloud\"}`. From a terminal: `anchor compare avalara taxcloud`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/avalara.json and https://www.anchorterminal.com/api/v1/tools/taxcloud.json\n\n## Other comparisons with Avalara AvaTax or TaxCloud\n\n- [Anrok vs Avalara AvaTax](https://www.anchorterminal.com/compare/anrok-vs-avalara.md)\n- [Anrok vs TaxCloud](https://www.anchorterminal.com/compare/anrok-vs-taxcloud.md)\n- [Avalara AvaTax vs Fonoa](https://www.anchorterminal.com/compare/avalara-vs-fonoa.md)\n- [Avalara AvaTax vs Kintsugi](https://www.anchorterminal.com/compare/avalara-vs-kintsugi.md)\n- [Avalara AvaTax vs Numeral](https://www.anchorterminal.com/compare/avalara-vs-numeral.md)\n- [Avalara AvaTax vs Quaderno](https://www.anchorterminal.com/compare/avalara-vs-quaderno.md)\n- [Avalara AvaTax vs TaxJar](https://www.anchorterminal.com/compare/avalara-vs-taxjar.md)\n- [Avalara AvaTax vs Vertex O Series](https://www.anchorterminal.com/compare/avalara-vs-vertex-tax.md)\n- [Avalara AvaTax vs Zamp](https://www.anchorterminal.com/compare/avalara-vs-zamp.md)\n- [Fonoa vs TaxCloud](https://www.anchorterminal.com/compare/fonoa-vs-taxcloud.md)\n- [Kintsugi vs TaxCloud](https://www.anchorterminal.com/compare/kintsugi-vs-taxcloud.md)\n- [Numeral vs TaxCloud](https://www.anchorterminal.com/compare/numeral-vs-taxcloud.md)\n- [Quaderno vs TaxCloud](https://www.anchorterminal.com/compare/quaderno-vs-taxcloud.md)\n- [TaxCloud vs TaxJar](https://www.anchorterminal.com/compare/taxcloud-vs-taxjar.md)\n- [TaxCloud vs Vertex O Series](https://www.anchorterminal.com/compare/taxcloud-vs-vertex-tax.md)\n- [TaxCloud vs Zamp](https://www.anchorterminal.com/compare/taxcloud-vs-zamp.md)\n",
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