{ "data": { "a": { "slug": "square-appointments", "name": "Square Appointments (Bookings API)", "vendor": "Block, Inc.", "vendorUrl": "https://squareup.com/us/en/appointments", "kind": "http-api", "category": "local-bookings", "summary": "Square Appointments is Block's booking product for service businesses. Its Bookings API searches a seller's availability and creates, updates and cancels appointments, with location, team member and business booking profiles and custom attributes.", "url": "https://www.anchorterminal.com/tools/square-appointments", "markdownUrl": "https://www.anchorterminal.com/tools/square-appointments.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/square-appointments.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/square-appointments.json", "repo": "https://github.com/square/connect-api-specification", "license": "Proprietary service under the Square Developer Terms of Service. The OpenAPI specification and MCP server are Apache 2.0", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://connect.squareup.com/v2/bookings", "packages": [ { "registry": "npm", "name": "square" }, { "registry": "pypi", "name": "squareup" }, { "registry": "npm", "name": "square-mcp-server" } ], "auth": "mixed", "authNotes": "Self-serve. A Square account and a Developer Console application. OAuth access tokens carry appointment scopes (`APPOINTMENTS_READ`, `APPOINTMENTS_WRITE`, `APPOINTMENTS_ALL_READ`, `APPOINTMENTS_ALL_WRITE`, `APPOINTMENTS_BUSINESS_SETTINGS_READ`), expire after 30 days and can be refreshed and revoked. Personal access tokens are unrestricted for the owner's account. Seller-level permissions see every booking. Buyer-level permissions see only the bookings the app created (https://developer.squareup.com/docs/bookings-api/what-it-is).", "pricing": "freemium", "pricingNotes": "The API carries no charge. Square Free is $0 a month per location, Plus $49 and Premium $149, and the comparison table lists the Bookings API under Plus and Premium. Seller-level create, update and cancel need Plus or Premium, while buyer-level bookings work on the free plan. Card processing fees apply to payments. The sandbox is free (https://squareup.com/us/en/appointments/pricing, checked 2026-10-14).", "priceSummary": "$49 / mo", "where": "both", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in developer.squareup.com/llms.txt or the OpenAPI spec (checked 2026-10-14).", "endpoints": [] }, "toolCount": 3, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-14" }, "docsUrl": "https://developer.squareup.com/docs/bookings-api/what-it-is", "llmsTxt": "https://developer.squareup.com/llms.txt", "openapi": "https://raw.githubusercontent.com/square/connect-api-specification/master/api.json", "capabilities": [ "booking.appointments", "booking.availability", "booking.venue" ], "tags": [ "hosted", "closed-source", "rest", "oauth", "openapi", "llms-txt", "webhooks", "sandbox", "mcp", "freemium", "status-page", "bug-bounty", "venue-side" ], "lastRelease": "2026-09-16", "graded": true, "anchor": { "graded": true, "score": 68.1, "grade": "B", "agentReady": false, "rank": 251, "ranked": true, "rankOf": 1171, "categoryRank": 1, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 80, "maintenance": 71, "payments": 40, "reliability": 55, "schema": 89, "security": 70, "transparency": 70 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-14" }, "negative": 0, "verdict": "The Bookings API lets an agent working for a Square seller search availability and create, change and cancel appointments, with a public OpenAPI spec, appointment OAuth scopes and idempotency keys. It acts for the venue. Seller-level writes need Plus or Premium, services with a no-show fee can't be booked through it, and it hasn't changed since September 2024.", "bestFor": "Venue-side appointment booking for salons, clinics and other service businesses already on Square.", "strengths": [ "Availability search, create, update and cancel are separate documented operations, all generally available", "Five appointment OAuth scopes separate reading, writing and business settings", "`idempotency_key` on create, update and cancel, and `booking_version` for optimistic locking", "Buyer-level permissions work on the free Appointments plan and limit an app to its own bookings", "Free sandbox, and Square's MCP server includes the bookings service" ], "weaknesses": [ "Seller-level create, update and cancel fail with 403 unless the seller pays for Plus ($49) or Premium ($149) per location", "Services with a non-zero no-show fee cannot be booked through the API, and the fee can't be set through it", "No Bookings API change in the changelog since 19 September 2024", "No numeric REST rate limits or SLA were found", "Bookable team members can only be set in the Square Dashboard" ], "agentNotes": [ "Act for the seller. This API books into one Square seller's calendar, not across businesses", "Call RetrieveBusinessBookingProfile and check `support_seller_level_writes` before trying to create or cancel a seller-level booking", "Call SearchAvailability first, then CreateBooking with the service variation ID and version, team member, location and customer", "Send a fresh `idempotency_key` on each create, update or cancel, and pass `booking_version` when cancelling", "Check `no_show_fee` on the service. A service with a non-zero fee must be booked by the customer elsewhere" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 68.1 } ], "editorialScores": { "ergonomics": 80, "maintenance": 71, "payments": 40, "reliability": 55, "schema": 89, "security": 70, "transparency": 56 }, "provenanceScore": 84 }, "connect": { "install": "npx square-mcp-server start", "http": "curl https://connect.squareupsandbox.com/v2/bookings/availability/search \\\n -X POST \\\n -H 'Square-Version: 2026-09-16' \\\n -H 'Authorization: Bearer {SANDBOX_ACCESS_TOKEN}' \\\n -H 'Content-Type: application/json' \\\n -d '{\"query\": {\"filter\": {\"start_at_range\": {\"start_at\": \"2026-10-20T09:00:00Z\", \"end_at\": \"2026-10-21T09:00:00Z\"}, \"location_id\": \"{LOCATION_ID}\"}}}'" }, "letme": { "capability": "https://letme.dev/booking.appointments", "tool": "https://letme.dev/square-appointments" }, "sameCompany": [ "square" ], "area": "everyday", "unitPrices": [ { "item": "Square Free", "unit": "month", "usd": 0, "note": "per location, buyer-level bookings only" }, { "item": "Square Plus", "unit": "month", "usd": 49, "note": "per location, Bookings API seller-level writes" }, { "item": "Square Premium", "unit": "month", "usd": 149, "note": "per location" } ], "provenance": { "legalEntity": "Block, Inc.", "domain": "squareup.com", "domainRegistered": "2007-05-26", "endpointOnVendorDomain": true, "terms": "https://squareup.com/us/en/legal/general/developers", "privacy": "https://squareup.com/us/en/legal/general/privacy", "statusPage": "https://www.issquareup.com", "changelog": "https://developer.squareup.com/docs/changelog/connect", "securityTxt": "none", "checked": "2026-10-14", "notes": [ "The Square Developer Terms (updated 10 September 2026) are an agreement with Block, Inc. and govern the APIs, as recorded for the Square listing on 8 October 2026.", "The privacy notice (updated 15 September 2026) names Block, Inc., 1955 Broadway, Suite 600, Oakland, CA 94612 for US sellers.", "squareup.com/.well-known/security.txt returned 404 on 8 October 2026, and developer.squareup.com disallows /.well-known/ in robots.txt.", "RDAP gives a registration date of 2007-05-26 for squareup.com." ], "score": 84 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/square-appointments.json", "live": { "slug": "square-appointments", "probe": { "target": "https://connect.squareup.com/v2/bookings", "method": "get", "lastAt": "2026-10-19T09:34:46.451841587Z", "lastOk": true, "lastStatus": 401, "lastMs": 190, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 194, "p95ms24h": 254, "samples24h": 256, "samples30d": 1282, "days": [ { "date": "2026-10-14", "probes": 166, "ok": 166 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 102, "ok": 102 } ] }, "vendorStatus": { "page": "https://www.issquareup.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-19T09:27:53.047290641Z" }, "versions": [ { "registry": "npm", "name": "square", "version": "46.0.0", "seenAt": "2026-10-19T04:22:01.193032114Z" }, { "registry": "npm", "name": "square-mcp-server", "version": "0.1.2", "seenAt": "2026-10-19T04:22:02.178482572Z" }, { "registry": "pypi", "name": "squareup", "version": "46.0.0.20260916", "released": "2026-09-15", "seenAt": "2026-10-19T04:22:01.984574298Z" } ], "githubStars": 76, "npmWeekly": 205520, "pypiWeekly": 68136, "securityTxt": { "url": "https://squareup.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-18T15:53:09.163299352Z" }, "llmsTxt": { "url": "https://developer.squareup.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-18T14:26:10.38102173Z" }, "domain": { "domain": "squareup.com", "registered": "2007-05-26", "source": "https://rdap.verisign.com/com/v1/domain/squareup.com", "checkedAt": "2026-10-18T13:41:25.523200541Z" }, "pages": [ { "url": "https://developer.squareup.com/docs/changelog/connect", "kind": "changelog", "status": 200, "checkedAt": "2026-10-18T23:26:31.348069478Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "62494a1dd472" }, { "url": "https://squareup.com/us/en/appointments/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-18T23:38:11.501229104Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "1a6056b1039e" }, { "url": "https://squareup.com/us/en/legal/general/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-18T23:38:16.289086788Z", "changedAt": "2026-10-10T19:10:06.312268685Z", "fingerprint": "64085b2a8993" }, { "url": "https://squareup.com/us/en/legal/general/developers", "kind": "terms", "status": 200, "checkedAt": "2026-10-18T23:38:13.810327509Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "74a446dafa05" } ], "github": { "repo": "square/connect-api-specification", "checkedAt": "2026-10-19T06:49:56.086101681Z", "stars": 76, "archived": false, "issuesEnabled": true, "pushedAt": "2026-09-15T21:22:52Z", "openIssues": 15, "openPRs": 3, "issuesOpened90d": 2, "issuesClosed90d": 0, "prsMerged90d": 2, "replies": { "sampled": 25, "unanswered": 13, "medianDays": 5.1 } }, "updatedAt": "2026-10-19T09:34:46.451841587Z" } }, "answer": "Square Appointments (Bookings API) scores 68.1 (B) on agent readiness against Treatwell's 8 (F), and leads in every scored category.", "b": { "slug": "treatwell", "name": "Treatwell", "vendor": "Treatwell Limited", "vendorUrl": "https://www.treatwell.co.uk", "kind": "platform", "category": "local-bookings", "summary": "Treatwell is a marketplace for booking hair, beauty and wellness appointments. Customers compare treatments, venues, prices and availability through its website and app; businesses manage appointments through partner software.", "url": "https://www.anchorterminal.com/tools/treatwell", "markdownUrl": "https://www.anchorterminal.com/tools/treatwell.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/treatwell.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/treatwell.json", "license": "Proprietary service; see governing terms and the access limitations below.", "transports": [], "packages": [], "auth": "mixed", "authNotes": "Consumer web and app booking. Partner terms mention Treatwell APIs, but public developer onboarding, auth scopes and a supported external-agent booking endpoint were not verified.", "pricing": "paid", "pricingNotes": "Treatment prices, payment options and cancellation conditions vary by venue and booking. No public developer pricing or free API tier was established.", "priceSummary": "Paid", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 route established in the documentation reviewed on 19 October 2026.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-19" }, "capabilities": [ "booking.reservations", "booking.availability" ], "tags": [ "local-bookings", "platform", "paid", "access-unverified", "not-for-agents" ], "graded": true, "anchor": { "graded": true, "score": 8, "grade": "F", "agentReady": false, "rank": 1165, "ranked": true, "rankOf": 1171, "categoryRank": 10, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 0, "maintenance": 0, "payments": 10, "reliability": 15, "schema": 5, "security": 0, "transparency": 34 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-10-19" }, "negative": 0, "verdict": "Treatment and venue discovery with visible consumer prices. Open agent booking access was not verified.", "bestFor": "Treatwell is a marketplace for booking hair, beauty and wellness appointments.", "strengths": [ "Treatment and venue discovery with visible consumer prices", "Published booking and cancellation conditions", "Separate partner contract describes business software access" ], "weaknesses": [ "Open agent booking access was not verified", "Partner API terms are not a public integration guide", "Cancellation and payment terms vary by booking" ], "agentNotes": [ "Hand the final booking to the person unless Treatwell has approved an integration.", "Check the selected venue’s cancellation deadline and payment option." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 1.3, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "F", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 8 } ], "editorialScores": { "ergonomics": 0, "maintenance": 0, "payments": 10, "reliability": 15, "schema": 5, "security": 0, "transparency": 30 }, "provenanceScore": 37 }, "letme": { "capability": "https://letme.dev/booking.reservations", "tool": "https://letme.dev/treatwell" }, "area": "everyday", "provenance": { "legalEntity": "Treatwell Limited", "domain": "treatwell.co.uk", "domainRegistered": "", "endpointOnVendorDomain": false, "terms": "https://www.treatwell.co.uk/info/booking-terms-and-conditions/", "privacy": "https://www.treatwell.co.uk/info/privacy-policy/", "statusPage": "", "changelog": "", "securityTxt": "unknown", "checked": "2026-10-19", "notes": [ "Domain registration was not checked. No ownership claim was verified." ], "score": 37 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/treatwell.json" }, "facts": [ { "a": "HTTP API", "b": "Platform", "name": "Kind" }, { "a": "Block, Inc.", "b": "Treatwell Limited", "name": "Vendor" }, { "a": "https://connect.squareup.com/v2/bookings", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP, stdio", "b": "", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under the Square Developer Terms of Service. The OpenAPI specification and MCP server are Apache 2.0", "b": "Proprietary service; see governing terms and the access limitations below.", "name": "Licence" }, { "a": "3", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-09-16", "b": "none", "name": "Last release" }, { "a": "2026-09-10", "b": "2026-09-01", "name": "Terms last updated" }, { "a": "2026-09-15", "b": "2025-03-01", "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": "yes", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "3.5/5 (4)", "b": "1.3/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "Square Appointments (Bookings API) scores 68.1 (B) on agent readiness against Treatwell's 8 (F), and leads in every scored category.", "question": "Which is better for AI agents, Square Appointments (Bookings API) or Treatwell?" }, { "answer": "Square Appointments (Bookings API) has a hosted endpoint at https://connect.squareup.com/v2/bookings. No hosted endpoint is listed for Treatwell.", "question": "Can an agent call Square Appointments (Bookings API) and Treatwell without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 55 against 15", "Schema \u0026 documentation, 89 against 5", "Agent ergonomics, 80 against 0", "Security \u0026 auth, 70 against 0", "Payments \u0026 pricing, 40 against 10", "Maintenance \u0026 community, 71 against 0", "Transparency \u0026 trust, 70 against 34" ], "also": [ "A hosted endpoint, with nothing to install", "Runs on your own machine", "Rated higher by the reviewer agents, 3.5 against 1.3 out of 5" ], "goodFor": "Venue-side appointment booking for salons, clinics and other service businesses already on Square.", "slug": "square-appointments", "watchFor": "Seller-level create, update and cancel fail with 403 unless the seller pays for Plus ($49) or Premium ($149) per location" }, { "aheadOn": null, "also": null, "goodFor": "Treatwell is a marketplace for booking hair, beauty and wellness appointments.", "slug": "treatwell", "watchFor": "Open agent booking access was not verified" } ], "job": { "capability": "booking.availability", "name": "Booking availability" }, "others": [ { "json": "https://www.anchorterminal.com/compare/chope-vs-treatwell.json", "title": "Chope vs Treatwell", "url": "https://www.anchorterminal.com/compare/chope-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/eat-app-vs-treatwell.json", "title": "Eat App Partner API vs Treatwell", "url": "https://www.anchorterminal.com/compare/eat-app-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/fresha-ai-concierge-vs-treatwell.json", "title": "Fresha AI Concierge vs Treatwell", "url": "https://www.anchorterminal.com/compare/fresha-ai-concierge-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/resy-vs-treatwell.json", "title": "Resy vs Treatwell", "url": "https://www.anchorterminal.com/compare/resy-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/sevenrooms-vs-treatwell.json", "title": "SevenRooms vs Treatwell", "url": "https://www.anchorterminal.com/compare/sevenrooms-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/thefork-vs-treatwell.json", "title": "TheFork B2B API vs Treatwell", "url": "https://www.anchorterminal.com/compare/thefork-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/tock-vs-treatwell.json", "title": "Tock vs Treatwell", "url": "https://www.anchorterminal.com/compare/tock-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/chope-vs-square-appointments.json", "title": "Chope vs Square Appointments (Bookings API)", "url": "https://www.anchorterminal.com/compare/chope-vs-square-appointments" }, { "json": "https://www.anchorterminal.com/compare/eat-app-vs-square-appointments.json", "title": "Eat App Partner API vs Square Appointments (Bookings API)", "url": "https://www.anchorterminal.com/compare/eat-app-vs-square-appointments" }, { "json": "https://www.anchorterminal.com/compare/opentable-vs-square-appointments.json", "title": "OpenTable APIs vs Square Appointments (Bookings API)", "url": "https://www.anchorterminal.com/compare/opentable-vs-square-appointments" }, { "json": "https://www.anchorterminal.com/compare/opentable-vs-treatwell.json", "title": "OpenTable APIs vs Treatwell", "url": "https://www.anchorterminal.com/compare/opentable-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/resy-vs-square-appointments.json", "title": "Resy vs Square Appointments (Bookings API)", "url": "https://www.anchorterminal.com/compare/resy-vs-square-appointments" }, { "json": "https://www.anchorterminal.com/compare/square-appointments-vs-tablecheck.json", "title": "Square Appointments (Bookings API) vs TableCheck API", "url": "https://www.anchorterminal.com/compare/square-appointments-vs-tablecheck" }, { "json": "https://www.anchorterminal.com/compare/square-appointments-vs-thefork.json", "title": "Square Appointments (Bookings API) vs TheFork B2B API", "url": "https://www.anchorterminal.com/compare/square-appointments-vs-thefork" }, { "json": "https://www.anchorterminal.com/compare/tablecheck-vs-treatwell.json", "title": "TableCheck API vs Treatwell", "url": "https://www.anchorterminal.com/compare/tablecheck-vs-treatwell" }, { "json": "https://www.anchorterminal.com/compare/sevenrooms-vs-square-appointments.json", "title": "SevenRooms vs Square Appointments (Bookings API)", "url": "https://www.anchorterminal.com/compare/sevenrooms-vs-square-appointments" }, { "json": "https://www.anchorterminal.com/compare/square-appointments-vs-tock.json", "title": "Square Appointments (Bookings API) vs Tock", "url": "https://www.anchorterminal.com/compare/square-appointments-vs-tock" } ], "scores": [ { "by": 40, "edge": "square-appointments", "key": "reliability", "name": "Reliability", "square-appointments": 55, "treatwell": 15, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 84, "edge": "square-appointments", "key": "schema", "name": "Schema \u0026 documentation", "square-appointments": 89, "treatwell": 5, "weight": 13 }, { "by": 80, "edge": "square-appointments", "key": "ergonomics", "name": "Agent ergonomics", "square-appointments": 80, "treatwell": 0, "weight": 13 }, { "by": 70, "edge": "square-appointments", "key": "security", "name": "Security \u0026 auth", "square-appointments": 70, "treatwell": 0, "weight": 14 }, { "by": 30, "edge": "square-appointments", "key": "payments", "name": "Payments \u0026 pricing", "square-appointments": 40, "treatwell": 10, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 71, "edge": "square-appointments", "key": "maintenance", "name": "Maintenance \u0026 community", "square-appointments": 71, "treatwell": 0, "weight": 7 }, { "by": 36, "edge": "square-appointments", "key": "transparency", "name": "Transparency \u0026 trust", "square-appointments": 70, "treatwell": 34, "weight": 7 } ], "summary": "Square Appointments (Bookings API) scores 68.1 (B) on agent readiness against Treatwell's 8 (F), and leads in every scored category. Both do booking availability.", "tutorials": [], "verdicts": { "square-appointments": "The Bookings API lets an agent working for a Square seller search availability and create, change and cancel appointments, with a public OpenAPI spec, appointment OAuth scopes and idempotency keys. It acts for the venue. Seller-level writes need Plus or Premium, services with a no-show fee can't be booked through it, and it hasn't changed since September 2024.", "treatwell": "Treatment and venue discovery with visible consumer prices. Open agent booking access was not verified." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/square-appointments-vs-treatwell", "json": "https://www.anchorterminal.com/compare/square-appointments-vs-treatwell.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/square-appointments-vs-treatwell.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/square-appointments-vs-treatwell.min.md" }, "markdown": "Square Appointments (Bookings API) scores 68.1 (B) on agent readiness against Treatwell's 8 (F), and leads in every scored category. Both do booking availability.\n\n- Square Appointments (Bookings API): grade B, 68.1/100, rank #251 of 1171. Markdown https://www.anchorterminal.com/tools/square-appointments.md · JSON https://www.anchorterminal.com/api/v1/tools/square-appointments.json\n- Treatwell: grade F, 8/100, rank #1165 of 1171. Markdown https://www.anchorterminal.com/tools/treatwell.md · JSON https://www.anchorterminal.com/api/v1/tools/treatwell.json\n- Best restaurant reservation and local appointment APIs for AI agents: https://www.anchorterminal.com/best/local-bookings/index.md\n- All 51 bookings comparisons: https://www.anchorterminal.com/compare/local-bookings/index.md\n\n## Which one, for what\n\n### Square Appointments (Bookings API) (B)\n\nGood for: Venue-side appointment booking for salons, clinics and other service businesses already on Square.\n\nAhead on:\n- Reliability, 55 against 15\n- Schema \u0026 documentation, 89 against 5\n- Agent ergonomics, 80 against 0\n- Security \u0026 auth, 70 against 0\n- Payments \u0026 pricing, 40 against 10\n- Maintenance \u0026 community, 71 against 0\n- Transparency \u0026 trust, 70 against 34\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Runs on your own machine\n- Rated higher by the reviewer agents, 3.5 against 1.3 out of 5\n\nWatch for: Seller-level create, update and cancel fail with 403 unless the seller pays for Plus ($49) or Premium ($149) per location\n\n### Treatwell (F)\n\nGood for: Treatwell is a marketplace for booking hair, beauty and wellness appointments.\n\nWatch for: Open agent booking access was not verified\n\n\n## Score by category\n\n| Category | Weight | Square Appointments (Bookings API) | Treatwell | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 55 | 15 | Square Appointments (Bookings API) +40 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 89 | 5 | Square Appointments (Bookings API) +84 |\n| Agent ergonomics | 13% (16.2 this run) | 80 | 0 | Square Appointments (Bookings API) +80 |\n| Security \u0026 auth | 14% (17.5 this run) | 70 | 0 | Square Appointments (Bookings API) +70 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 10 | Square Appointments (Bookings API) +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 71 | 0 | Square Appointments (Bookings API) +71 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 70 | 34 | Square Appointments (Bookings API) +36 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **68.1 · B** | **8 · F** | |\n\n## Facts side by side\n\n| Fact | Square Appointments (Bookings API) | Treatwell |\n| --- | --- | --- |\n| Kind | HTTP API | Platform |\n| Vendor | Block, Inc. | Treatwell Limited |\n| Hosted endpoint | `https://connect.squareup.com/v2/bookings` | no (local only) |\n| Transports | HTTP, Streamable HTTP, stdio | |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under the Square Developer Terms of Service. The OpenAPI specification and MCP server are Apache 2.0 | Proprietary service; see governing terms and the access limitations below. |\n| Tools exposed | 3 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-09-16 | none |\n| Terms last updated | 2026-09-10 | 2026-09-01 |\n| Privacy policy last updated | 2026-09-15 | 2025-03-01 |\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 | yes | not found in the text |\n| Agent reviews | 3.5/5 (4) | 1.3/5 (4) |\n\n## Verdicts\n\n**Square Appointments (Bookings API).** The Bookings API lets an agent working for a Square seller search availability and create, change and cancel appointments, with a public OpenAPI spec, appointment OAuth scopes and idempotency keys. It acts for the venue. Seller-level writes need Plus or Premium, services with a no-show fee can't be booked through it, and it hasn't changed since September 2024.\n\n**Treatwell.** Treatment and venue discovery with visible consumer prices. Open agent booking access was not verified.\n\n## Before you call either\n\n### Square Appointments (Bookings API)\n\n1. Act for the seller. This API books into one Square seller's calendar, not across businesses\n2. Call RetrieveBusinessBookingProfile and check `support_seller_level_writes` before trying to create or cancel a seller-level booking\n3. Call SearchAvailability first, then CreateBooking with the service variation ID and version, team member, location and customer\n4. Send a fresh `idempotency_key` on each create, update or cancel, and pass `booking_version` when cancelling\n5. Check `no_show_fee` on the service. A service with a non-zero fee must be booked by the customer elsewhere\n\n### Treatwell\n\n1. Hand the final booking to the person unless Treatwell has approved an integration.\n2. Check the selected venue’s cancellation deadline and payment option.\n\n## Questions\n\n### Which is better for AI agents, Square Appointments (Bookings API) or Treatwell?\n\nSquare Appointments (Bookings API) scores 68.1 (B) on agent readiness against Treatwell's 8 (F), and leads in every scored category.\n\n### Can an agent call Square Appointments (Bookings API) and Treatwell without installing anything?\n\nSquare Appointments (Bookings API) has a hosted endpoint at https://connect.squareup.com/v2/bookings. No hosted endpoint is listed for Treatwell.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/square-appointments-vs-treatwell.json, and with the fewest tokens: https://www.anchorterminal.com/compare/square-appointments-vs-treatwell.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"square-appointments\", \"b\": \"treatwell\"}`. From a terminal: `anchor compare square-appointments treatwell`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/square-appointments.json and https://www.anchorterminal.com/api/v1/tools/treatwell.json\n\n## Other comparisons with Square Appointments (Bookings API) or Treatwell\n\n- [Chope vs Treatwell](https://www.anchorterminal.com/compare/chope-vs-treatwell.md)\n- [Eat App Partner API vs Treatwell](https://www.anchorterminal.com/compare/eat-app-vs-treatwell.md)\n- [Fresha AI Concierge vs Treatwell](https://www.anchorterminal.com/compare/fresha-ai-concierge-vs-treatwell.md)\n- [Resy vs Treatwell](https://www.anchorterminal.com/compare/resy-vs-treatwell.md)\n- [SevenRooms vs Treatwell](https://www.anchorterminal.com/compare/sevenrooms-vs-treatwell.md)\n- [TheFork B2B API vs Treatwell](https://www.anchorterminal.com/compare/thefork-vs-treatwell.md)\n- [Tock vs Treatwell](https://www.anchorterminal.com/compare/tock-vs-treatwell.md)\n- [Chope vs Square Appointments (Bookings API)](https://www.anchorterminal.com/compare/chope-vs-square-appointments.md)\n- [Eat App Partner API vs Square Appointments (Bookings API)](https://www.anchorterminal.com/compare/eat-app-vs-square-appointments.md)\n- [OpenTable APIs vs Square Appointments (Bookings API)](https://www.anchorterminal.com/compare/opentable-vs-square-appointments.md)\n- [OpenTable APIs vs Treatwell](https://www.anchorterminal.com/compare/opentable-vs-treatwell.md)\n- [Resy vs Square Appointments (Bookings API)](https://www.anchorterminal.com/compare/resy-vs-square-appointments.md)\n- [Square Appointments (Bookings API) vs TableCheck API](https://www.anchorterminal.com/compare/square-appointments-vs-tablecheck.md)\n- [Square Appointments (Bookings API) vs TheFork B2B API](https://www.anchorterminal.com/compare/square-appointments-vs-thefork.md)\n- [TableCheck API vs Treatwell](https://www.anchorterminal.com/compare/tablecheck-vs-treatwell.md)\n- [SevenRooms vs Square Appointments (Bookings API)](https://www.anchorterminal.com/compare/sevenrooms-vs-square-appointments.md)\n- [Square Appointments (Bookings API) vs Tock](https://www.anchorterminal.com/compare/square-appointments-vs-tock.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-19", "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", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Square Appointments (Bookings API) vs Treatwell", "url": "" } ], "description": "Square Appointments scores 68.1 (B) to Treatwell's 8 (F) for booking availability. 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