{ "data": { "a": { "slug": "acuity-scheduling", "name": "Acuity Scheduling API", "vendor": "Squarespace", "vendorUrl": "https://acuityscheduling.com", "kind": "http-api", "category": "scheduling", "summary": "Acuity Scheduling is Squarespace's appointment booking product. Its REST API reads availability, creates, reschedules and cancels appointments, manages clients and blocked time, and sends webhooks, with Basic authentication or OAuth2.", "url": "https://www.anchorterminal.com/tools/acuity-scheduling", "markdownUrl": "https://www.anchorterminal.com/tools/acuity-scheduling.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/acuity-scheduling.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/acuity-scheduling.json", "repo": "https://github.com/AcuityScheduling/acuity-js", "license": "Proprietary service under Squarespace's Developer Terms. The Node.js and PHP SDKs are MIT", "transports": [ "http" ], "remoteUrl": "https://acuityscheduling.com/api/v1", "packages": [ { "registry": "npm", "name": "acuityscheduling" } ], "auth": "mixed", "authNotes": "Self-serve. One account uses HTTP Basic authentication with the numeric User ID as username and the account API key as password, found under Integrations in the Acuity settings. Apps that connect other people's accounts register an OAuth2 client at https://acuityscheduling.com/oauth2/register and use the authorisation code grant, which has one scope, `api-v1`, and returns a Bearer token. `POST /oauth2/disconnect` disables a token. No app review step, token expiry or refresh token is described in the OAuth guide. Requests must come from a server, as cross-origin requests are refused.", "pricing": "paid", "pricingNotes": "The pricing page lists \"Custom API and CSS\" on the Premium plan only, at $61 a month or $49 a month billed yearly. Starter is $20 ($16 yearly) and Standard $34 ($27 yearly), in USD before tax. Each plan has a 7-day trial with no card needed. We did not establish whether the trial includes API access. No free tier or sandbox was found, and API calls carry no separate charge. An Enterprise plan with additional APIs is sold through sales (https://acuityscheduling.com/pricing).", "priceSummary": "$61 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the developer docs or on the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 9182, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://developers.acuityscheduling.com", "llmsTxt": "https://developers.acuityscheduling.com/llms.txt", "capabilities": [ "calendar.read", "calendar.availability", "calendar.booking", "calendar.webhooks" ], "tags": [ "hosted", "paid", "trial", "rest", "oauth", "basic-auth", "webhooks", "llms-txt", "closed-source", "status-page", "hipaa", "nodejs", "php" ], "graded": true, "anchor": { "graded": true, "score": 42.4, "grade": "E", "agentReady": false, "rank": 678, "ranked": true, "rankOf": 722, "categoryRank": 8, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 44, "maintenance": 15, "payments": 30, "reliability": 58, "schema": 56, "security": 27, "transparency": 54 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "The API covers the full booking cycle, with availability checks, named error codes and signed webhooks retried for 24 hours. API access is sold only on the Premium plan at $61 a month, the single OAuth scope grants the whole account, and no changelog, idempotency key or audit log was found in the reviewed documentation.", "bestFor": "A business that already takes bookings in Acuity and wants an agent to check slots, book, move and cancel appointments for clients, including classes, packages and intake forms.", "strengths": [ "Availability by date and time, booking, rescheduling and cancelling are separate documented endpoints under `/api/v1`", "Errors return a status code, a named `error` code and a message, and a 404 suggests the nearest valid path", "Webhooks are signed with HMAC-SHA256 in `x-acuity-signature` and retried nine times over 24 hours", "Every docs page has a Markdown copy with an OpenAPI 3.1 fragment, and `llms.txt` is published", "Rate limit stated as 10 requests a second and 20 concurrent connections per IP" ], "weaknesses": [ "The pricing page lists custom API access on Premium only, $61 a month or $49 billed yearly", "OAuth2 has one scope, `api-v1`, and Basic authentication uses one account API key, so no read-only credential exists", "No changelog or deprecation policy was found, and the Developer Terms allow changes without notice", "The Node.js and PHP SDKs were last released in July 2019", "The status page records two critical service disruptions in the last 90 days, on 19 July and 12 August 2026" ], "agentNotes": [ "Call `/availability/dates` then `/availability/times` with `appointmentTypeID` before `POST /appointments`, which validates the slot as a client would", "Avoid `admin=true` unless the owner asks for it, because it skips availability and form validation", "Pass `noEmail=true` when a booking or cancellation must not send the client an email or SMS", "Check `GET /appointments` filtered by `email` and date before retrying a booking, since no idempotency key is documented", "Stay under 10 requests a second and 20 concurrent connections per IP, and back off on 429, which carries no documented `Retry-After`" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 42.4 } ], "editorialScores": { "ergonomics": 44, "maintenance": 15, "payments": 30, "reliability": 58, "schema": 56, "security": 27, "transparency": 34 }, "provenanceScore": 74 }, "connect": { "install": "npm install --save acuityscheduling", "http": "curl -u ACUITY_USER_ID:ACUITY_API_KEY \"https://acuityscheduling.com/api/v1/appointments\"" }, "letme": { "capability": "https://letme.dev/calendar.read", "tool": "https://letme.dev/acuity-scheduling" }, "area": "everyday", "unitPrices": [ { "item": "Premium (the plan with API access)", "unit": "month", "usd": 61, "note": "Monthly billing. $49 a month billed yearly" } ], "provenance": { "legalEntity": "Squarespace, Inc.", "domain": "acuityscheduling.com", "domainRegistered": "2007-01-15", "endpointOnVendorDomain": true, "terms": "https://www.squarespace.com/developer-terms", "privacy": "https://www.squarespace.com/privacy", "statusPage": "https://status.acuityscheduling.com", "changelog": "", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The developer docs' legal page links two documents, Squarespace's Developer Terms (last updated 16 December 2025) and Squarespace's privacy policy (effective 15 July 2026). Both name acuityscheduling.com.", "The contracting entity is Squarespace, Inc., 225 Varick Street, New York, for US users and Squarespace Ireland Limited, Dublin, for others.", "acuityscheduling.com/.well-known/security.txt returns 404. www.squarespace.com publishes one that expires on 1 January 2028 and points to its vulnerability reporting page.", "The API answers at https://acuityscheduling.com/api/v1 and OAuth at https://acuityscheduling.com/oauth2.", "RDAP gives a registration date of 2007-01-15 and MarkMonitor Inc. as registrar.", "No changelog was found. developers.acuityscheduling.com/changelog.md returns the docs' not-found page." ], "score": 74 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/acuity-scheduling.json", "live": { "slug": "acuity-scheduling", "probe": { "target": "https://acuityscheduling.com/api/v1", "method": "get", "lastAt": "2026-10-08T21:53:14.476348682Z", "lastOk": true, "lastStatus": 404, "lastMs": 464, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 475, "p95ms24h": 504, "samples24h": 28, "samples30d": 28, "days": [ { "date": "2026-10-08", "probes": 28, "ok": 28 } ] }, "vendorStatus": { "page": "https://status.acuityscheduling.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T21:57:41.552819171Z" }, "updatedAt": "2026-10-08T21:57:41.552819171Z" } }, "answer": "Aurinko Calendar API scores 45.6 (E) on agent readiness against Acuity Scheduling API's 42.4 (E), and leads in 5 of 7 scored categories. Acuity Scheduling API leads on reliability and transparency \u0026 trust.", "b": { "slug": "aurinko-calendar", "name": "Aurinko Calendar API", "vendor": "Yoxel, Inc.", "vendorUrl": "https://www.aurinko.io", "kind": "http-api", "category": "scheduling", "summary": "Unified calendar REST API from Yoxel, Inc. It reads and writes calendars and events on Google, Office 365, Outlook.com, Exchange and iCloud through one interface, with free/busy queries, booking profiles and webhooks.", "url": "https://www.anchorterminal.com/tools/aurinko-calendar", "markdownUrl": "https://www.anchorterminal.com/tools/aurinko-calendar.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/aurinko-calendar.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/aurinko-calendar.json", "license": "Proprietary service under Yoxel's Terms of Services Agreement", "transports": [ "http" ], "remoteUrl": "https://api.aurinko.io", "packages": [], "auth": "oauth", "authNotes": "Self-serve. A developer signs up at app.aurinko.io and gets a client ID and secret for each application. Each end user connects a calendar through Aurinko's OAuth flow at `/v1/auth/authorize`, which returns an account access token sent as a Bearer token. Eleven scopes include `Calendar.Read` and `Calendar.ReadWrite`. Group booking and other application-level calls take the client ID and secret as Basic auth. Production use with Google or Office 365 needs the developer's own OAuth app registration with those providers.", "pricing": "paid", "pricingNotes": "$1 an active account a month for one of Calendar, Contacts or Tasks with up to 1 GB of traffic, $1.50 for Email or CRM, and $2 for any number of APIs with unlimited traffic, per the billing FAQ. A 14-day trial needs no card, and API requests are blocked when it ends without a subscription (https://docs.aurinko.io/faq/how-does-aurinko-billing-work).", "priceSummary": "Paid", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, the OpenAPI spec or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://docs.aurinko.io/", "llmsTxt": "https://docs.aurinko.io/llms.txt", "openapi": "https://apirefs.aurinko.io/assets/swagger.json", "capabilities": [ "calendar.read", "calendar.write", "calendar.availability", "calendar.booking", "calendar.webhooks" ], "tags": [ "hosted", "oauth", "openapi", "llms-txt", "webhooks", "closed-source", "free-trial" ], "graded": true, "anchor": { "graded": true, "score": 45.6, "grade": "E", "agentReady": false, "rank": 654, "ranked": true, "rankOf": 722, "categoryRank": 7, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 56, "maintenance": 20, "payments": 40, "reliability": 40, "schema": 66, "security": 41, "transparency": 44 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "A public OpenAPI 3.0 spec covers 154 operations, with free/busy, meeting-time suggestion and booking profiles alongside calendar reads and writes, and prices start at $1 an active account a month. No status page, SLA, changelog or official SDK was found, and the application's client secret reaches every connected account.", "bestFor": "A product that connects many users' Google and Microsoft calendars and wants availability and booking at a low price per account.", "strengths": [ "Public OpenAPI 3.0 spec at `apirefs.aurinko.io/assets/swagger.json` with 154 operations, 110 of them carrying a cURL sample", "Availability in three forms, `/v1/calendars/freeBusy`, `/v1/calendars/suggestMeetingTimes` and booking profiles for one calendar or a group", "Prices published per active account a month ($1, $1.50 and $2), with a 14-day trial that needs no card", "Eleven OAuth scopes, with `Calendar.Read` separate from `Calendar.ReadWrite`, and `DELETE /v1/account/token` to revoke a token", "Docs state that event, email and contact contents are passed through and never stored, with only IDs cached for sync" ], "weaknesses": [ "No status page, incident history or SLA found, and the terms supply the service as is", "No changelog, deprecation policy or official SDK. The only npm package, `aurinko-sdk`, is unofficial", "The application's client ID and secret, sent as Basic auth with `X-Aurinko-Account-Id`, reach every connected account", "SOC 2 is not yet held. The security statement of 18 June 2026 targets a Type I examination for Q3 2026", "Terms and privacy policy date from 11 August 2022, with no retention period, DPA or sub-processor list found" ], "agentNotes": [ "Use `https://api.aurinko.io/v1`. Several cURL examples in the docs print `https:/api.aurinko.io` with one slash", "Send `If-Match` with the event's `etag` on `PATCH /v1/calendars/{calendarId}/events/{eventId}`. A stale value returns 412", "Use `primary` as the calendar ID for an account's main calendar, and page with `pageToken` until none is returned", "Hold a slot with `reserveForMinutes` on the booking `meeting` call, then confirm or cancel the reservation, since no idempotency key exists", "Retry 429, 408 and 5xx with exponential backoff. Do not retry 404. A 429 can come from Google or Microsoft limits behind the API" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 45.6 } ], "editorialScores": { "ergonomics": 56, "maintenance": 20, "payments": 40, "reliability": 40, "schema": 66, "security": 41, "transparency": 27 }, "provenanceScore": 60 }, "connect": { "http": "curl -H 'Authorization: Bearer \u003caccess_token\u003e' \\\n -X GET https://api.aurinko.io/v1/calendars/primary" }, "letme": { "capability": "https://letme.dev/calendar.read", "tool": "https://letme.dev/aurinko-calendar" }, "area": "everyday", "unitPrices": [ { "item": "Unified API, one of Calendar, Contacts or Tasks", "unit": "account-month", "usd": 1, "note": "Per active account, up to 1 GB of traffic a month" }, { "item": "Email or CRM", "unit": "account-month", "usd": 1.5, "note": "Per active account, up to 1 GB of traffic a month" }, { "item": "Full platform, any number of APIs", "unit": "account-month", "usd": 2, "note": "Per active account, unlimited traffic" } ], "provenance": { "legalEntity": "Yoxel, Inc.", "domain": "aurinko.io", "domainRegistered": "2019-05-08", "endpointOnVendorDomain": true, "terms": "https://www.aurinko.io/terms/", "privacy": "https://www.aurinko.io/privacy/", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The Terms of Services Agreement, last updated 11 August 2022, names Yoxel, Inc., organised under the laws of California, and covers the API and the workspace integrations platform. Disputes go to binding arbitration.", "The privacy policy, last updated 11 August 2022, covers the site and the services, API included, and commits to Google's API Services User Data Policy and its Limited Use requirements.", "The API answers at api.aurinko.io, the portal at app.aurinko.io and the reference at apirefs.aurinko.io, all on the vendor's domain.", "www.aurinko.io/.well-known/security.txt returns 404. The security statement gives security@yoxel.com for reports.", "No status page or changelog is linked from the site, the docs or the spec. status.aurinko.io did not resolve from our network.", "RDAP for aurinko.io gives a registration date of 2019-05-08." ], "score": 60 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/aurinko-calendar.json", "live": { "slug": "aurinko-calendar", "probe": { "target": "https://api.aurinko.io", "method": "get", "lastAt": "2026-10-08T21:53:16.118387345Z", "lastOk": true, "lastStatus": 404, "lastMs": 233, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 255, "p95ms24h": 311, "samples24h": 28, "samples30d": 28, "days": [ { "date": "2026-10-08", "probes": 28, "ok": 28 } ] }, "updatedAt": "2026-10-08T21:53:16.118387345Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Squarespace", "b": "Yoxel, Inc.", "name": "Vendor" }, { "a": "https://acuityscheduling.com/api/v1", "b": "https://api.aurinko.io", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth", "name": "Auth" }, { "a": "Paid", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under Squarespace's Developer Terms. The Node.js and PHP SDKs are MIT", "b": "Proprietary service under Yoxel's Terms of Services Agreement", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2025-12-16", "b": "2022-08-11", "name": "Terms last updated" }, { "a": "no date given", "b": "2022-08-11", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "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": "yes", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "9.2k npm/wk", "b": "none", "name": "Popularity" } ], "faq": [ { "answer": "Aurinko Calendar API scores 45.6 (E) on agent readiness against Acuity Scheduling API's 42.4 (E), and leads in 5 of 7 scored categories. Acuity Scheduling API leads on reliability and transparency \u0026 trust.", "question": "Which is better for AI agents, Acuity Scheduling API or Aurinko Calendar API?" }, { "answer": "Acuity Scheduling API takes an API key or an OAuth sign-in. Aurinko Calendar API uses an OAuth sign-in.", "question": "Do Acuity Scheduling API and Aurinko Calendar API need an API key?" }, { "answer": "Yes. Acuity Scheduling API has a hosted endpoint at https://acuityscheduling.com/api/v1 and Aurinko Calendar API at https://api.aurinko.io.", "question": "Can an agent call Acuity Scheduling API and Aurinko Calendar API without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 58 against 40", "Transparency \u0026 trust, 54 against 44" ], "also": null, "goodFor": "A business that already takes bookings in Acuity and wants an agent to check slots, book, move and cancel appointments for clients, including classes, packages and intake forms.", "slug": "acuity-scheduling", "watchFor": "The pricing page lists custom API access on Premium only, $61 a month or $49 billed yearly" }, { "aheadOn": [ "Schema \u0026 documentation, 66 against 56", "Agent ergonomics, 56 against 44", "Security \u0026 auth, 41 against 27", "Payments \u0026 pricing, 40 against 30", "Maintenance \u0026 community, 20 against 15" ], "also": null, "goodFor": "A product that connects many users' Google and Microsoft calendars and wants availability and booking at a low price per account.", "slug": "aurinko-calendar", "watchFor": "No status page, incident history or SLA found, and the terms supply the service as is" } ], "job": { "capability": "calendar.read", "name": "Calendar read" }, "others": [ { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-apiroc.json", "title": "Acuity Scheduling API vs Apiroc Unified Calendar API", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-apiroc" }, { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-cal-com.json", "title": "Acuity Scheduling API vs Cal.com API v2 + MCP", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-cal-com" }, { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-calendly.json", "title": "Acuity Scheduling API vs Calendly API + MCP", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-calendly" }, { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-cronofy.json", "title": "Acuity Scheduling API vs Cronofy API", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-cronofy" }, { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-google-calendar-api.json", "title": "Acuity Scheduling API vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-microsoft-graph-calendar.json", "title": "Acuity Scheduling API vs Microsoft Graph Calendar API", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-microsoft-graph-calendar" }, { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-nylas-calendar.json", "title": "Acuity Scheduling API vs Nylas Calendar and Scheduler API", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-nylas-calendar" }, { "json": "https://www.anchorterminal.com/compare/apiroc-vs-aurinko-calendar.json", "title": "Apiroc Unified Calendar API vs Aurinko Calendar API", "url": "https://www.anchorterminal.com/compare/apiroc-vs-aurinko-calendar" }, { "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-cal-com.json", "title": "Aurinko Calendar API vs Cal.com API v2 + MCP", "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-cal-com" }, { "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-calendly.json", "title": "Aurinko Calendar API vs Calendly API + MCP", "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-calendly" }, { "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-cronofy.json", "title": "Aurinko Calendar API vs Cronofy API", "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-cronofy" }, { "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-google-calendar-api.json", "title": "Aurinko Calendar API vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-microsoft-graph-calendar.json", "title": "Aurinko Calendar API vs Microsoft Graph Calendar API", "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-microsoft-graph-calendar" }, { "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-nylas-calendar.json", "title": "Aurinko Calendar API vs Nylas Calendar and Scheduler API", "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-nylas-calendar" } ], "scores": [ { "acuity-scheduling": 58, "aurinko-calendar": 40, "by": 18, "edge": "acuity-scheduling", "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "acuity-scheduling": 56, "aurinko-calendar": 66, "by": 10, "edge": "aurinko-calendar", "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "acuity-scheduling": 44, "aurinko-calendar": 56, "by": 12, "edge": "aurinko-calendar", "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "acuity-scheduling": 27, "aurinko-calendar": 41, "by": 14, "edge": "aurinko-calendar", "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "acuity-scheduling": 30, "aurinko-calendar": 40, "by": 10, "edge": "aurinko-calendar", "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "acuity-scheduling": 15, "aurinko-calendar": 20, "by": 5, "edge": "aurinko-calendar", "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "acuity-scheduling": 54, "aurinko-calendar": 44, "by": 10, "edge": "acuity-scheduling", "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Aurinko Calendar API scores 45.6 (E) on agent readiness against Acuity Scheduling API's 42.4 (E), and leads in 5 of 7 scored categories. Acuity Scheduling API leads on reliability and transparency \u0026 trust. Both do calendar read.", "verdicts": { "acuity-scheduling": "The API covers the full booking cycle, with availability checks, named error codes and signed webhooks retried for 24 hours. API access is sold only on the Premium plan at $61 a month, the single OAuth scope grants the whole account, and no changelog, idempotency key or audit log was found in the reviewed documentation.", "aurinko-calendar": "A public OpenAPI 3.0 spec covers 154 operations, with free/busy, meeting-time suggestion and booking profiles alongside calendar reads and writes, and prices start at $1 an active account a month. No status page, SLA, changelog or official SDK was found, and the application's client secret reaches every connected account." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar", "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar.md", "slim": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar.min.md" }, "markdown": "Aurinko Calendar API scores 45.6 (E) on agent readiness against Acuity Scheduling API's 42.4 (E), and leads in 5 of 7 scored categories. Acuity Scheduling API leads on reliability and transparency \u0026 trust. Both do calendar read.\n\n- Acuity Scheduling API: grade E, 42.4/100, rank #678 of 722. Markdown https://www.anchorterminal.com/tools/acuity-scheduling.md · JSON https://www.anchorterminal.com/api/v1/tools/acuity-scheduling.json\n- Aurinko Calendar API: grade E, 45.6/100, rank #654 of 722. Markdown https://www.anchorterminal.com/tools/aurinko-calendar.md · JSON https://www.anchorterminal.com/api/v1/tools/aurinko-calendar.json\n\n## Which one, for what\n\n### Acuity Scheduling API (E)\n\nGood for: A business that already takes bookings in Acuity and wants an agent to check slots, book, move and cancel appointments for clients, including classes, packages and intake forms.\n\nAhead on:\n- Reliability, 58 against 40\n- Transparency \u0026 trust, 54 against 44\n\nWatch for: The pricing page lists custom API access on Premium only, $61 a month or $49 billed yearly\n\n### Aurinko Calendar API (E)\n\nGood for: A product that connects many users' Google and Microsoft calendars and wants availability and booking at a low price per account.\n\nAhead on:\n- Schema \u0026 documentation, 66 against 56\n- Agent ergonomics, 56 against 44\n- Security \u0026 auth, 41 against 27\n- Payments \u0026 pricing, 40 against 30\n- Maintenance \u0026 community, 20 against 15\n\nWatch for: No status page, incident history or SLA found, and the terms supply the service as is\n\n\n## Score by category\n\n| Category | Weight | Acuity Scheduling API | Aurinko Calendar API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 58 | 40 | Acuity Scheduling API +18 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 56 | 66 | Aurinko Calendar API +10 |\n| Agent ergonomics | 13% (16.2 this run) | 44 | 56 | Aurinko Calendar API +12 |\n| Security \u0026 auth | 14% (17.5 this run) | 27 | 41 | Aurinko Calendar API +14 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 40 | Aurinko Calendar API +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 15 | 20 | Aurinko Calendar API +5 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 54 | 44 | Acuity Scheduling API +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **42.4 · E** | **45.6 · E** | |\n\n## Facts side by side\n\n| Fact | Acuity Scheduling API | Aurinko Calendar API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Squarespace | Yoxel, Inc. |\n| Hosted endpoint | `https://acuityscheduling.com/api/v1` | `https://api.aurinko.io` |\n| Transports | HTTP | HTTP |\n| Auth | OAuth or key | OAuth |\n| Pricing | Paid | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under Squarespace's Developer Terms. The Node.js and PHP SDKs are MIT | Proprietary service under Yoxel's Terms of Services Agreement |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Terms last updated | 2025-12-16 | 2022-08-11 |\n| Privacy policy last updated | no date given | 2022-08-11 |\n| Customer content may train models | not found in the text | not found in the text |\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 | yes | not found in the text |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 9.2k npm/wk | none |\n\n## Verdicts\n\n**Acuity Scheduling API.** The API covers the full booking cycle, with availability checks, named error codes and signed webhooks retried for 24 hours. API access is sold only on the Premium plan at $61 a month, the single OAuth scope grants the whole account, and no changelog, idempotency key or audit log was found in the reviewed documentation.\n\n**Aurinko Calendar API.** A public OpenAPI 3.0 spec covers 154 operations, with free/busy, meeting-time suggestion and booking profiles alongside calendar reads and writes, and prices start at $1 an active account a month. No status page, SLA, changelog or official SDK was found, and the application's client secret reaches every connected account.\n\n## Before you call either\n\n### Acuity Scheduling API\n\n1. Call `/availability/dates` then `/availability/times` with `appointmentTypeID` before `POST /appointments`, which validates the slot as a client would\n2. Avoid `admin=true` unless the owner asks for it, because it skips availability and form validation\n3. Pass `noEmail=true` when a booking or cancellation must not send the client an email or SMS\n4. Check `GET /appointments` filtered by `email` and date before retrying a booking, since no idempotency key is documented\n5. Stay under 10 requests a second and 20 concurrent connections per IP, and back off on 429, which carries no documented `Retry-After`\n\n### Aurinko Calendar API\n\n1. Use `https://api.aurinko.io/v1`. Several cURL examples in the docs print `https:/api.aurinko.io` with one slash\n2. Send `If-Match` with the event's `etag` on `PATCH /v1/calendars/{calendarId}/events/{eventId}`. A stale value returns 412\n3. Use `primary` as the calendar ID for an account's main calendar, and page with `pageToken` until none is returned\n4. Hold a slot with `reserveForMinutes` on the booking `meeting` call, then confirm or cancel the reservation, since no idempotency key exists\n5. Retry 429, 408 and 5xx with exponential backoff. Do not retry 404. A 429 can come from Google or Microsoft limits behind the API\n\n## Questions\n\n### Which is better for AI agents, Acuity Scheduling API or Aurinko Calendar API?\n\nAurinko Calendar API scores 45.6 (E) on agent readiness against Acuity Scheduling API's 42.4 (E), and leads in 5 of 7 scored categories. Acuity Scheduling API leads on reliability and transparency \u0026 trust.\n\n### Do Acuity Scheduling API and Aurinko Calendar API need an API key?\n\nAcuity Scheduling API takes an API key or an OAuth sign-in. Aurinko Calendar API uses an OAuth sign-in.\n\n### Can an agent call Acuity Scheduling API and Aurinko Calendar API without installing anything?\n\nYes. Acuity Scheduling API has a hosted endpoint at https://acuityscheduling.com/api/v1 and Aurinko Calendar API at https://api.aurinko.io.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar.json, and with the fewest tokens: https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"acuity-scheduling\", \"b\": \"aurinko-calendar\"}`. From a terminal: `anchor compare acuity-scheduling aurinko-calendar`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/acuity-scheduling.json and https://www.anchorterminal.com/api/v1/tools/aurinko-calendar.json\n\n## Other comparisons with Acuity Scheduling API or Aurinko Calendar API\n\n- [Acuity Scheduling API vs Apiroc Unified Calendar API](https://www.anchorterminal.com/compare/acuity-scheduling-vs-apiroc.md)\n- [Acuity Scheduling API vs Cal.com API v2 + MCP](https://www.anchorterminal.com/compare/acuity-scheduling-vs-cal-com.md)\n- [Acuity Scheduling API vs Calendly API + MCP](https://www.anchorterminal.com/compare/acuity-scheduling-vs-calendly.md)\n- [Acuity Scheduling API vs Cronofy API](https://www.anchorterminal.com/compare/acuity-scheduling-vs-cronofy.md)\n- [Acuity Scheduling API vs Google Calendar API](https://www.anchorterminal.com/compare/acuity-scheduling-vs-google-calendar-api.md)\n- [Acuity Scheduling API vs Microsoft Graph Calendar API](https://www.anchorterminal.com/compare/acuity-scheduling-vs-microsoft-graph-calendar.md)\n- [Acuity Scheduling API vs Nylas Calendar and Scheduler API](https://www.anchorterminal.com/compare/acuity-scheduling-vs-nylas-calendar.md)\n- [Apiroc Unified Calendar API vs Aurinko Calendar API](https://www.anchorterminal.com/compare/apiroc-vs-aurinko-calendar.md)\n- [Aurinko Calendar API vs Cal.com API v2 + MCP](https://www.anchorterminal.com/compare/aurinko-calendar-vs-cal-com.md)\n- [Aurinko Calendar API vs Calendly API + MCP](https://www.anchorterminal.com/compare/aurinko-calendar-vs-calendly.md)\n- [Aurinko Calendar API vs Cronofy API](https://www.anchorterminal.com/compare/aurinko-calendar-vs-cronofy.md)\n- [Aurinko Calendar API vs Google Calendar API](https://www.anchorterminal.com/compare/aurinko-calendar-vs-google-calendar-api.md)\n- [Aurinko Calendar API vs Microsoft Graph Calendar API](https://www.anchorterminal.com/compare/aurinko-calendar-vs-microsoft-graph-calendar.md)\n- [Aurinko Calendar API vs Nylas Calendar and Scheduler API](https://www.anchorterminal.com/compare/aurinko-calendar-vs-nylas-calendar.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": "Acuity Scheduling API vs Aurinko Calendar API", "url": "" } ], "description": "Aurinko Calendar API scores 45.6 (E) on agent readiness against Acuity Scheduling API's 42.4 (E), and leads in 5 of 7 scored categories. Acuity Scheduling API leads on reliability and transparency \u0026 trust. Both do calendar read. Category scores, facts, verdicts and agent notes…", "facts": [ "Acuity Scheduling API E 42.4", "Aurinko Calendar API E 45.6", "scores" ], "h1": "Acuity Scheduling API vs Aurinko Calendar API", "image": "https://www.anchorterminal.com/assets/og/compare-acuity-scheduling-vs-aurinko-calendar.png", "path": "/compare/acuity-scheduling-vs-aurinko-calendar", "published": "2026-10-01", "section": "tools", "title": "Acuity Scheduling API vs Aurinko Calendar API for AI agents", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar" }, "tokens": { "markdown": 2350, "slim": 680 }, "version": 1 }