{ "data": { "a": { "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": "2026-10-08T21:53:35.391027886Z", "lastOk": true, "lastStatus": 404, "lastMs": 350, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 337, "p95ms24h": 377, "samples24h": 28, "samples30d": 28, "days": [ { "date": "2026-10-08", "probes": 28, "ok": 28 } ] }, "vendorStatus": { "page": "https://status.taxcloud.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-08T19:39:15.801163493Z" }, "updatedAt": "2026-10-08T21:53:35.391027886Z" } }, "answer": "TaxJar and TaxCloud score within a point of each other on agent readiness, 57.6 (C) and 57.4 (C). TaxCloud leads on schema \u0026 documentation.", "b": { "slug": "taxjar", "name": "TaxJar", "vendor": "TaxJar (Stripe)", "vendorUrl": "https://www.taxjar.com", "kind": "http-api", "category": "tax", "summary": "TaxJar is Stripe's US sales tax service for businesses that sell across states. Its REST API calculates tax for an order, looks up rates by address, records orders and refunds for reporting, and stores exempt customers.", "url": "https://www.anchorterminal.com/tools/taxjar", "markdownUrl": "https://www.anchorterminal.com/tools/taxjar.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/taxjar.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/taxjar.json", "repo": "https://github.com/taxjar/taxjar-node", "license": "Proprietary service under TaxJar's terms of service and API licence agreement. The official API clients on GitHub are MIT", "transports": [ "http" ], "remoteUrl": "https://api.taxjar.com/v2", "packages": [ { "registry": "npm", "name": "taxjar" }, { "registry": "pypi", "name": "taxjar" } ], "auth": "api-key", "authNotes": "A self-serve API token, generated by a signed-in user at Account \u003e TaxJar API in the web app and sent as `Authorization: Bearer \u003ctoken\u003e`. The token has no scopes and covers every endpoint for that account, deletes included. API access needs the Professional plan or the 30-day trial. The sandbox takes its own token. No OAuth, app review or partner approval applies.", "pricing": "paid", "pricingNotes": "The API needs the Professional plan, from $99 a month at 200 orders, with higher order tiers on a selector. Each calculation or rate lookup counts as a tenth of an order, errors included. A 30-day trial with API access needs no card, so an agent's owner can start without a contract. The sandbox comes with Professional plans (checked 2026-10-08).", "priceSummary": "$99 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API reference, the API guides or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 57, "npmWeekly": 95036, "pypiWeekly": 49713, "asOf": "2026-10-08" }, "docsUrl": "https://developers.taxjar.com/api/reference/", "capabilities": [ "tax.calculate", "tax.transactions", "tax.exemptions", "shipping.address-validation" ], "tags": [ "hosted", "closed-source", "api-key", "sandbox", "no-card", "python", "typescript", "ruby", "php", "java", "go", "dotnet", "status-page", "soc2" ], "lastRelease": "2026-09-02", "graded": true, "anchor": { "graded": true, "score": 57.6, "grade": "C", "agentReady": false, "rank": 470, "ranked": true, "rankOf": 722, "categoryRank": 5, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 61, "maintenance": 64, "payments": 30, "reliability": 84, "schema": 48, "security": 43, "transparency": 71 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "A 21-operation REST API with a no-card 30-day trial, caller-chosen transaction IDs that make order pushes safe to repeat, and no status-page incident since March 2026. No OpenAPI spec or llms.txt was found, the API changelog stops at January 2022, tokens carry no scopes, and calculation is US-only for new accounts.", "bestFor": "An agent working for a US seller that needs sales tax on an order at checkout and a record of orders and refunds for state reporting, with exempt customers handled by ID.", "strengths": [ "30-day trial with Professional plan access, the API included, and no card needed at signup", "Orders and refunds take a caller-chosen `transaction_id`. A duplicate create returns 422 and the docs direct a PUT update", "status.taxjar.com lists seven components and no incident since 26 March 2026", "Rate limits published as 10,000 requests a minute on Professional and 25,000 on Premium", "Official clients for seven languages. The Node client reached 5.0.0 on npm on 2 September 2026 and .NET 5.0.0 on NuGet on 4 August 2026" ], "weaknesses": [ "No OpenAPI spec or llms.txt was found. The taxjar/openapi repository on GitHub holds only a README", "The API changelog's last entry is 24 January 2022, and no deprecation policy was found", "Calculation covers the United States only for new accounts. The docs point other countries to Stripe Tax", "API tokens carry no scopes or read-only mode, and the same token can delete transactions and customers", "Calls that return an error still count as a tenth of an order against the plan, per the help centre" ], "agentNotes": [ "Send `x-api-version: 2022-01-24` on every call. Accounts opened before 3 February 2022 default to an older version with weaker validation", "Pass `nexus_addresses[]` or keep nexus states in the account. Without nexus the API returns zero tax and reports no error", "Create orders with your own `transaction_id`. On 422 the order already exists, so send a PUT to update it", "Post JSON with `Content-Type: application/json`. Form-encoded arrays such as `line_items[]` can return 406", "Cache calculations and skip states without nexus. Each calculation or rate lookup counts as a tenth of an order, errors included" ], "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": 57.6 } ], "editorialScores": { "ergonomics": 61, "maintenance": 64, "payments": 30, "reliability": 84, "schema": 48, "security": 43, "transparency": 55 }, "provenanceScore": 87 }, "connect": { "install": "npm install taxjar", "http": "curl https://api.taxjar.com/v2/categories \\\n -H \"Authorization: Bearer ${TAXJAR_API_KEY}\"" }, "letme": { "capability": "https://letme.dev/tax.calculate", "tool": "https://letme.dev/taxjar" }, "area": "domain-data", "unitPrices": [ { "item": "Professional, 200 orders a month", "unit": "month", "usd": 99, "note": "the plan with API access; a calculation or rate lookup counts as a tenth of an order" }, { "item": "Professional, 500 orders a month", "unit": "month", "usd": 249, "note": "per the flex fee article" }, { "item": "Professional, 1,000 orders a month", "unit": "month", "usd": 499, "note": "per the flex fee article" }, { "item": "Starter, 200 orders a month", "unit": "month", "usd": 39, "note": "no API access" }, { "item": "AutoFile return beyond included credits, Professional", "unit": "tx", "usd": 55, "note": "four credits a year included; $50 on Starter" } ], "provenance": { "legalEntity": "TPS Unlimited, Inc. (d/b/a TaxJar, a wholly owned subsidiary of Stripe, Inc.)", "domain": "taxjar.com", "domainRegistered": "2012-03-02", "endpointOnVendorDomain": true, "terms": "https://www.taxjar.com/terms-of-service", "privacy": "https://www.taxjar.com/privacy", "statusPage": "https://status.taxjar.com", "changelog": "https://developers.taxjar.com/api/reference/#changelog", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The terms of service and the API licence agreement on the same page (last updated 14 May 2026) are with TPS Unlimited, Inc. d/b/a TaxJar. The data processing agreement of the same date calls it a wholly owned subsidiary of Stripe, Inc.", "The privacy policy (last updated 7 January 2022) gives TPS Unlimited, Inc., 462 Washington St. #3066, Woburn, Massachusetts 01888, and adds (A Stripe Company). The about page says Stripe acquired TaxJar in 2021.", "Stripe is listed separately on Anchor Terminal. TaxJar keeps its own API, account system, terms and status page, and its sub-processor list names Stripe, LLC and affiliates for billing.", "The API host is api.taxjar.com and the sandbox api.sandbox.taxjar.com. RDAP gives a registration date of 2012-03-02 for taxjar.com, with Com Laude as registrar.", "www.taxjar.com/.well-known/security.txt and api.taxjar.com/.well-known/security.txt return 404. stripe.com serves a valid security.txt that points to HackerOne, and we didn't establish whether that programme covers TaxJar hosts.", "The changelog is a section of the API reference page, and its newest entry is dated 24 January 2022." ], "score": 87 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/taxjar.json", "live": { "slug": "taxjar", "probe": { "target": "https://api.taxjar.com/v2", "method": "get", "lastAt": "2026-10-08T21:53:35.400087132Z", "lastOk": true, "lastStatus": 404, "lastMs": 116, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 263, "p95ms24h": 331, "samples24h": 71, "samples30d": 71, "days": [ { "date": "2026-10-08", "probes": 71, "ok": 71 } ] }, "vendorStatus": { "page": "https://status.taxjar.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T21:58:16.178812619Z" }, "versions": [ { "registry": "github", "name": "taxjar/taxjar-node", "version": "v5.0.0", "released": "2026-02-03", "seenAt": "2026-10-08T16:31:32.062161715Z" }, { "registry": "npm", "name": "taxjar", "version": "5.0.0", "seenAt": "2026-10-08T16:31:31.016239944Z" }, { "registry": "pypi", "name": "taxjar", "version": "2.0.1", "released": "2025-04-14", "seenAt": "2026-10-08T16:31:31.869241068Z" } ], "githubStars": 57, "npmWeekly": 95036, "pypiWeekly": 49713, "securityTxt": { "url": "https://taxjar.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:39:06.776426979Z" }, "pages": [ { "url": "https://developers.taxjar.com/api/reference/", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:18:03.269696625Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "fb0fe884536c" }, { "url": "https://www.taxjar.com/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:30:56.737296724Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "b22cd1da61e7" }, { "url": "https://www.taxjar.com/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:30:59.304705205Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "7e694d9c9de5" } ], "updatedAt": "2026-10-08T21:58:16.178812619Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "The Federal Tax Authority, LLC (TaxCloud)", "b": "TaxJar (Stripe)", "name": "Vendor" }, { "a": "https://api.v3.taxcloud.com", "b": "https://api.taxjar.com/v2", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Paid", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under TaxCloud's terms of service. The agent skills repository on GitHub is Apache-2.0", "b": "Proprietary service under TaxJar's terms of service and API licence agreement. The official API clients on GitHub are MIT", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-09-24", "b": "2026-09-02", "name": "Last release" }, { "a": "2025-03-01", "b": "2026-05-14", "name": "Terms last updated" }, { "a": "2025-02-01", "b": "2022-01-07", "name": "Privacy policy last updated" }, { "a": "yes", "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": "yes", "name": "Terms restrict benchmarking" }, { "a": "yes", "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" }, { "a": "0 stars", "b": "57 stars, 95k npm/wk, 50k PyPI/wk", "name": "Popularity" } ], "faq": [ { "answer": "TaxJar and TaxCloud score within a point of each other on agent readiness, 57.6 (C) and 57.4 (C). TaxCloud leads on schema \u0026 documentation.", "question": "Which is better for AI agents, TaxCloud or TaxJar?" }, { "answer": "Both need an API key.", "question": "Do TaxCloud and TaxJar need an API key?" }, { "answer": "Yes. TaxCloud has a hosted endpoint at https://api.v3.taxcloud.com and TaxJar at https://api.taxjar.com/v2.", "question": "Can an agent call TaxCloud and TaxJar without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 75 against 48" ], "also": null, "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" }, { "aheadOn": [ "Reliability, 84 against 66", "Maintenance \u0026 community, 64 against 57", "Transparency \u0026 trust, 71 against 51" ], "also": null, "goodFor": "An agent working for a US seller that needs sales tax on an order at checkout and a record of orders and refunds for state reporting, with exempt customers handled by ID.", "slug": "taxjar", "watchFor": "No OpenAPI spec or llms.txt was found. The taxjar/openapi repository on GitHub holds only a README" } ], "job": { "capability": "tax.calculate", "name": "Tax calculate" }, "others": [ { "json": "https://www.anchorterminal.com/compare/anrok-vs-taxcloud.json", "title": "Anrok vs TaxCloud", "url": "https://www.anchorterminal.com/compare/anrok-vs-taxcloud" }, { "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-taxcloud.json", "title": "Avalara AvaTax vs TaxCloud", "url": "https://www.anchorterminal.com/compare/avalara-vs-taxcloud" }, { "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/fonoa-vs-taxcloud.json", "title": "Fonoa vs TaxCloud", "url": "https://www.anchorterminal.com/compare/fonoa-vs-taxcloud" }, { "json": "https://www.anchorterminal.com/compare/fonoa-vs-taxjar.json", "title": "Fonoa vs TaxJar", "url": "https://www.anchorterminal.com/compare/fonoa-vs-taxjar" }, { "json": "https://www.anchorterminal.com/compare/kintsugi-vs-taxcloud.json", "title": "Kintsugi vs TaxCloud", "url": "https://www.anchorterminal.com/compare/kintsugi-vs-taxcloud" }, { "json": "https://www.anchorterminal.com/compare/kintsugi-vs-taxjar.json", "title": "Kintsugi vs TaxJar", "url": "https://www.anchorterminal.com/compare/kintsugi-vs-taxjar" }, { "json": "https://www.anchorterminal.com/compare/numeral-vs-taxcloud.json", "title": "Numeral vs TaxCloud", "url": "https://www.anchorterminal.com/compare/numeral-vs-taxcloud" }, { "json": "https://www.anchorterminal.com/compare/numeral-vs-taxjar.json", "title": "Numeral vs TaxJar", "url": "https://www.anchorterminal.com/compare/numeral-vs-taxjar" }, { "json": "https://www.anchorterminal.com/compare/quaderno-vs-taxcloud.json", "title": "Quaderno vs TaxCloud", "url": "https://www.anchorterminal.com/compare/quaderno-vs-taxcloud" }, { "json": "https://www.anchorterminal.com/compare/quaderno-vs-taxjar.json", "title": "Quaderno vs TaxJar", "url": "https://www.anchorterminal.com/compare/quaderno-vs-taxjar" }, { "json": "https://www.anchorterminal.com/compare/taxcloud-vs-vertex-tax.json", "title": "TaxCloud vs Vertex O Series", "url": "https://www.anchorterminal.com/compare/taxcloud-vs-vertex-tax" }, { "json": "https://www.anchorterminal.com/compare/taxcloud-vs-zamp.json", "title": "TaxCloud vs Zamp", "url": "https://www.anchorterminal.com/compare/taxcloud-vs-zamp" }, { "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" }, { "json": "https://www.anchorterminal.com/compare/taxjar-vs-zamp.json", "title": "TaxJar vs Zamp", "url": "https://www.anchorterminal.com/compare/taxjar-vs-zamp" } ], "scores": [ { "by": 18, "edge": "taxjar", "key": "reliability", "name": "Reliability", "taxcloud": 66, "taxjar": 84, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 27, "edge": "taxcloud", "key": "schema", "name": "Schema \u0026 documentation", "taxcloud": 75, "taxjar": 48, "weight": 13 }, { "by": 3, "edge": "taxcloud", "key": "ergonomics", "name": "Agent ergonomics", "taxcloud": 64, "taxjar": 61, "weight": 13 }, { "by": 2, "edge": "taxcloud", "key": "security", "name": "Security \u0026 auth", "taxcloud": 45, "taxjar": 43, "weight": 14 }, { "by": 4, "edge": "taxcloud", "key": "payments", "name": "Payments \u0026 pricing", "taxcloud": 34, "taxjar": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 7, "edge": "taxjar", "key": "maintenance", "name": "Maintenance \u0026 community", "taxcloud": 57, "taxjar": 64, "weight": 7 }, { "by": 20, "edge": "taxjar", "key": "transparency", "name": "Transparency \u0026 trust", "taxcloud": 51, "taxjar": 71, "weight": 7 } ], "summary": "TaxJar and TaxCloud score within a point of each other on agent readiness, 57.6 (C) and 57.4 (C). TaxCloud leads on schema \u0026 documentation. Both do tax calculate.", "verdicts": { "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.", "taxjar": "A 21-operation REST API with a no-card 30-day trial, caller-chosen transaction IDs that make order pushes safe to repeat, and no status-page incident since March 2026. No OpenAPI spec or llms.txt was found, the API changelog stops at January 2022, tokens carry no scopes, and calculation is US-only for new accounts." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/taxcloud-vs-taxjar", "json": "https://www.anchorterminal.com/compare/taxcloud-vs-taxjar.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/taxcloud-vs-taxjar.md", "slim": "https://www.anchorterminal.com/compare/taxcloud-vs-taxjar.min.md" }, "markdown": "TaxJar and TaxCloud score within a point of each other on agent readiness, 57.6 (C) and 57.4 (C). TaxCloud leads on schema \u0026 documentation. Both do tax calculate.\n\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- TaxJar: grade C, 57.6/100, rank #470 of 722. Markdown https://www.anchorterminal.com/tools/taxjar.md · JSON https://www.anchorterminal.com/api/v1/tools/taxjar.json\n\n## Which one, for what\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\nAhead on:\n- Schema \u0026 documentation, 75 against 48\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### TaxJar (C)\n\nGood for: An agent working for a US seller that needs sales tax on an order at checkout and a record of orders and refunds for state reporting, with exempt customers handled by ID.\n\nAhead on:\n- Reliability, 84 against 66\n- Maintenance \u0026 community, 64 against 57\n- Transparency \u0026 trust, 71 against 51\n\nWatch for: No OpenAPI spec or llms.txt was found. The taxjar/openapi repository on GitHub holds only a README\n\n\n## Score by category\n\n| Category | Weight | TaxCloud | TaxJar | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 66 | 84 | TaxJar +18 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 75 | 48 | TaxCloud +27 |\n| Agent ergonomics | 13% (16.2 this run) | 64 | 61 | TaxCloud +3 |\n| Security \u0026 auth | 14% (17.5 this run) | 45 | 43 | TaxCloud +2 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 34 | 30 | TaxCloud +4 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 57 | 64 | TaxJar +7 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 51 | 71 | TaxJar +20 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **57.4 · C** | **57.6 · C** | |\n\n## Facts side by side\n\n| Fact | TaxCloud | TaxJar |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | The Federal Tax Authority, LLC (TaxCloud) | TaxJar (Stripe) |\n| Hosted endpoint | `https://api.v3.taxcloud.com` | `https://api.taxjar.com/v2` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Paid | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under TaxCloud's terms of service. The agent skills repository on GitHub is Apache-2.0 | Proprietary service under TaxJar's terms of service and API licence agreement. The official API clients on GitHub are MIT |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-09-24 | 2026-09-02 |\n| Terms last updated | 2025-03-01 | 2026-05-14 |\n| Privacy policy last updated | 2025-02-01 | 2022-01-07 |\n| Customer content may train models | yes | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | yes | yes |\n| Terms or service can change without notice | yes | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 0 stars | 57 stars, 95k npm/wk, 50k PyPI/wk |\n\n## Verdicts\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**TaxJar.** A 21-operation REST API with a no-card 30-day trial, caller-chosen transaction IDs that make order pushes safe to repeat, and no status-page incident since March 2026. No OpenAPI spec or llms.txt was found, the API changelog stops at January 2022, tokens carry no scopes, and calculation is US-only for new accounts.\n\n## Before you call either\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### TaxJar\n\n1. Send `x-api-version: 2022-01-24` on every call. Accounts opened before 3 February 2022 default to an older version with weaker validation\n2. Pass `nexus_addresses[]` or keep nexus states in the account. Without nexus the API returns zero tax and reports no error\n3. Create orders with your own `transaction_id`. On 422 the order already exists, so send a PUT to update it\n4. Post JSON with `Content-Type: application/json`. Form-encoded arrays such as `line_items[]` can return 406\n5. Cache calculations and skip states without nexus. Each calculation or rate lookup counts as a tenth of an order, errors included\n\n## Questions\n\n### Which is better for AI agents, TaxCloud or TaxJar?\n\nTaxJar and TaxCloud score within a point of each other on agent readiness, 57.6 (C) and 57.4 (C). TaxCloud leads on schema \u0026 documentation.\n\n### Do TaxCloud and TaxJar need an API key?\n\nBoth need an API key.\n\n### Can an agent call TaxCloud and TaxJar without installing anything?\n\nYes. TaxCloud has a hosted endpoint at https://api.v3.taxcloud.com and TaxJar at https://api.taxjar.com/v2.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/taxcloud-vs-taxjar.json, and with the fewest tokens: https://www.anchorterminal.com/compare/taxcloud-vs-taxjar.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"taxcloud\", \"b\": \"taxjar\"}`. From a terminal: `anchor compare taxcloud taxjar`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/taxcloud.json and https://www.anchorterminal.com/api/v1/tools/taxjar.json\n\n## Other comparisons with TaxCloud or TaxJar\n\n- [Anrok vs TaxCloud](https://www.anchorterminal.com/compare/anrok-vs-taxcloud.md)\n- [Anrok vs TaxJar](https://www.anchorterminal.com/compare/anrok-vs-taxjar.md)\n- [Avalara AvaTax vs TaxCloud](https://www.anchorterminal.com/compare/avalara-vs-taxcloud.md)\n- [Avalara AvaTax vs TaxJar](https://www.anchorterminal.com/compare/avalara-vs-taxjar.md)\n- [Fonoa vs TaxCloud](https://www.anchorterminal.com/compare/fonoa-vs-taxcloud.md)\n- [Fonoa vs TaxJar](https://www.anchorterminal.com/compare/fonoa-vs-taxjar.md)\n- [Kintsugi vs TaxCloud](https://www.anchorterminal.com/compare/kintsugi-vs-taxcloud.md)\n- [Kintsugi vs TaxJar](https://www.anchorterminal.com/compare/kintsugi-vs-taxjar.md)\n- [Numeral vs TaxCloud](https://www.anchorterminal.com/compare/numeral-vs-taxcloud.md)\n- [Numeral vs TaxJar](https://www.anchorterminal.com/compare/numeral-vs-taxjar.md)\n- [Quaderno vs TaxCloud](https://www.anchorterminal.com/compare/quaderno-vs-taxcloud.md)\n- [Quaderno vs TaxJar](https://www.anchorterminal.com/compare/quaderno-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- [TaxJar vs Vertex O Series](https://www.anchorterminal.com/compare/taxjar-vs-vertex-tax.md)\n- [TaxJar vs Zamp](https://www.anchorterminal.com/compare/taxjar-vs-zamp.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "TaxCloud vs TaxJar", "url": "" } ], "description": "TaxJar and TaxCloud score within a point of each other on agent readiness, 57.6 (C) and 57.4 (C). TaxCloud leads on schema \u0026 documentation. Both do tax calculate. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "TaxCloud C 57.4", "TaxJar C 57.6", "scores" ], "h1": "TaxCloud vs TaxJar", "image": "https://www.anchorterminal.com/assets/og/compare-taxcloud-vs-taxjar.png", "path": "/compare/taxcloud-vs-taxjar", "published": "2026-10-01", "section": "tools", "title": "TaxCloud vs TaxJar for AI agents, C 57.4 vs C 57.6 | Anchor Terminal", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/taxcloud-vs-taxjar" }, "tokens": { "markdown": 2100, "slim": 630 }, "version": 1 }