{
  "data": {
    "a": {
      "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",
      "dns": "aurinko-calendar.grade.anchorterminal.com",
      "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": 45.7,
        "grade": "E",
        "agentReady": false,
        "rank": 1111,
        "ranked": true,
        "rankOf": 1349,
        "categoryRank": 9,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 56,
          "maintenance": 20,
          "payments": 40,
          "reliability": 40,
          "schema": 66,
          "security": 41,
          "transparency": 45
        },
        "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": 4,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "E",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 45.7
          }
        ],
        "editorialScores": {
          "ergonomics": 56,
          "maintenance": 20,
          "payments": 40,
          "reliability": 40,
          "schema": 66,
          "security": 41,
          "transparency": 27
        },
        "provenanceScore": 63,
        "checked": {
          "categories": {
            "ergonomics": "2026-10-08",
            "maintenance": "2026-10-08",
            "payments": "2026-10-08",
            "reliability": "2026-10-08",
            "schema": "2026-10-08",
            "security": "2026-10-08",
            "transparency": "2026-10-08"
          },
          "last": "2026-10-08",
          "lastMoved": "2026-10-28",
          "oldest": "2026-10-08",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "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"
      },
      "sameCompany": [
        "aurinko-email"
      ],
      "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": 63
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/aurinko-calendar.json",
      "live": {
        "slug": "aurinko-calendar",
        "probe": {
          "target": "https://api.aurinko.io",
          "method": "get",
          "lastAt": "2026-11-04T21:39:13.932745842Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 251,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 285,
          "p95ms24h": 373,
          "samples24h": 247,
          "samples30d": 6784,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 50,
              "ok": 50
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "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": 255,
              "ok": 255
            },
            {
              "date": "2026-10-20",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-21",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-22",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-23",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-24",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-25",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-26",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-27",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-28",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-29",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-30",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-31",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-11-01",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-11-02",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-11-03",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-11-04",
              "probes": 223,
              "ok": 223
            }
          ]
        },
        "securityTxt": {
          "url": "https://aurinko.io/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-11-04T15:54:44.163039657Z"
        },
        "llmsTxt": {
          "url": "https://docs.aurinko.io/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-11-04T15:22:08.317039867Z"
        },
        "domain": {
          "domain": "aurinko.io",
          "checkedAt": "2026-11-01T14:14:27.348410916Z"
        },
        "pages": [
          {
            "url": "https://www.aurinko.io/privacy/",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-11-04T08:37:18.284622576Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d50f73b54856"
          },
          {
            "url": "https://www.aurinko.io/terms/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-11-04T08:37:20.662998196Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "3018ea7bb6f5"
          }
        ],
        "updatedAt": "2026-11-04T21:39:13.932745842Z"
      }
    },
    "answer": "Aurinko Calendar API scores 45.7 (E) on agent readiness against YouCanBookMe API's 22.5 (F), and leads in 5 of 7 scored categories. YouCanBookMe API leads on maintenance \u0026 community and transparency \u0026 trust.",
    "b": {
      "slug": "youcanbookme",
      "name": "YouCanBookMe API",
      "vendor": "AI Software (Capacity) UK Ltd, trading as YouCanBookMe",
      "vendorUrl": "https://youcanbook.me",
      "kind": "http-api",
      "category": "scheduling",
      "summary": "YouCanBookMe is a booking-page service from the UK company of the same name, owned by Capacity since 2025. Its REST API manages account details, booking pages (profiles) and bookings over HTTP Basic auth, with webhooks from booking notifications.",
      "url": "https://www.anchorterminal.com/tools/youcanbookme",
      "markdownUrl": "https://www.anchorterminal.com/tools/youcanbookme.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/youcanbookme.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/youcanbookme.json",
      "dns": "youcanbookme.grade.anchorterminal.com",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.youcanbook.me/v1",
      "packages": [],
      "auth": "api-key",
      "authNotes": "HTTP Basic authentication with the account email address or account ID as the username and an account API key as the password. Only the Account Owner can generate, view, copy or delete the key, under Account Password \u0026 Security \u003e Authentication and API, and the help centre says the API key is available on the Team plan. No scopes, expiry or per-user keys are described. Administrators and Contributors must ask the owner for the key.",
      "pricing": "freemium",
      "pricingNotes": "Free plan with 1 calendar, 1 booking page and 30 bookings a month, with YouCanBookMe branding. Individual $9, Professional $13 and Teams $18 a seat a month, with 10 per cent off yearly and 20 per cent off for two years ($7.20, $10.40 and $14.40), per the help centre's pricing article. 14-day trial of every feature with no card, per the pricing page. API access is listed under the Team plan; webhooks need Professional or Teams.",
      "priceSummary": "$9 / seat-mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 on the pricing page, in the help centre API and webhook articles or in the API's error response (checked 2026-11-03). The API reference itself could not be read.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-03"
      },
      "docsUrl": "https://ycbm.stoplight.io/",
      "capabilities": [
        "calendar.booking",
        "calendar.availability",
        "calendar.webhooks"
      ],
      "tags": [
        "hosted",
        "freemium",
        "free-tier",
        "free-trial",
        "no-card",
        "api-key",
        "webhooks",
        "soc2",
        "iso27001",
        "uk",
        "closed-source"
      ],
      "lastRelease": "2026-09-01",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 22.5,
        "grade": "F",
        "agentReady": false,
        "rank": 1287,
        "ranked": true,
        "rankOf": 1349,
        "categoryRank": 13,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 13,
          "maintenance": 28,
          "payments": 30,
          "reliability": 15,
          "schema": 10,
          "security": 24,
          "transparency": 61
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "low",
          "date": "2026-11-03"
        },
        "negative": 0,
        "verdict": "A booking-page service with a Team-plan REST API over HTTP Basic auth and one account-wide key, SOC 2 Type II and ISO 27001 on its security page, and a 14-day trial without a card. Its API reference renders only by JavaScript and its status page did not resolve for us, so endpoints, limits and incidents are unverified.",
        "bestFor": "A booking-page product for small businesses, closest to calendly and savvycal in scheduling.",
        "strengths": [
          "SOC 2 Type II and ISO/IEC 27001:2022 (certificate issued 20 February 2024) listed on the security page, with AES-256 at rest on AWS",
          "Free plan and a 14-day trial of every feature with no card",
          "Privacy notice (16 March 2026) states retention periods, 24 months for booking data by default, and says booking data is not used to train AI models",
          "Webhook notifications on six booking triggers with a JSON payload the user shapes, on Professional and Teams",
          "The API answers with a JSON error envelope carrying a code, message and status, and declares its version in an `x-api-version` header"
        ],
        "weaknesses": [
          "The API reference at ycbm.stoplight.io could not be read without JavaScript, and the help centre's API article sat behind a Cloudflare challenge",
          "One account-wide API key over HTTP Basic auth, created only by the Account Owner, with no scopes or expiry documented",
          "API access is listed only on the Team plan ($18 a seat a month)",
          "No rate limits, 429 handling, idempotency keys, OpenAPI file, llms.txt or official SDK were found",
          "No security.txt, bug bounty or disclosure policy, and the status page at youcanbookmestatus.com did not resolve for us"
        ],
        "agentNotes": [
          "Ask the Account Owner for the account ID and API key, since Administrators and Contributors cannot generate one, and send them as HTTP Basic credentials",
          "Read the API reference at ycbm.stoplight.io in a browser before planning calls; its endpoints and parameters were not readable to us",
          "Treat the key as full account access and keep it out of logs, since no scoped or read-only key is documented",
          "Expect a JSON error body with `code`, `message` and `status` on failures, and check for an existing booking before repeating a create, since no idempotency key is documented",
          "Use booking-page webhooks for booking, reschedule, cancel, reminder, follow-up and no-show events instead of polling"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "low",
            "grade": "F",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 22.5
          }
        ],
        "editorialScores": {
          "ergonomics": 13,
          "maintenance": 28,
          "payments": 30,
          "reliability": 15,
          "schema": 10,
          "security": 24,
          "transparency": 52
        },
        "provenanceScore": 70,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-03",
            "maintenance": "2026-11-03",
            "payments": "2026-11-03",
            "reliability": "2026-11-03",
            "schema": "2026-11-03",
            "security": "2026-11-03",
            "transparency": "2026-11-03"
          },
          "last": "2026-11-03",
          "oldest": "2026-11-03",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "curl -u \"$YCBM_ACCOUNT_ID:$YCBM_API_KEY\" https://api.youcanbook.me/v1/profiles"
      },
      "letme": {
        "capability": "https://letme.dev/calendar.booking",
        "tool": "https://letme.dev/youcanbookme"
      },
      "area": "everyday",
      "unitPrices": [
        {
          "item": "Individual",
          "unit": "seat-month",
          "usd": 9,
          "note": "$8.10 a month yearly, $7.20 over two years, per the help centre"
        },
        {
          "item": "Professional",
          "unit": "seat-month",
          "usd": 13,
          "note": "$11.70 a month yearly, $10.40 over two years"
        },
        {
          "item": "Teams",
          "unit": "seat-month",
          "usd": 18,
          "note": "Per seat. $16.20 yearly, $14.40 over two years. The plan that lists API access"
        }
      ],
      "provenance": {
        "legalEntity": "AI Software (Capacity) UK Ltd",
        "domain": "youcanbook.me",
        "domainRegistered": "",
        "endpointOnVendorDomain": true,
        "terms": "https://youcanbook.me/terms",
        "privacy": "https://youcanbook.me/privacy",
        "statusPage": "https://www.youcanbookmestatus.com",
        "changelog": "https://youcanbook.me/product-updates",
        "securityTxt": "none",
        "checked": "2026-11-03",
        "notes": [
          "The terms (last updated 18 March 2026) name AI Software (Capacity) UK Ltd, trading as YouCanBookMe, under English law. Clause 15.3 bars data mining, robots and similar extraction tools without written consent, and clause 7.2 bars downloading the Site's software. Recorded as a fact; the public pages were read.",
          "The privacy notice (16 March 2026) gives company number 7221202, AWS hosting in the United States, a DPA on request through HelloSign, and retention of 24 months for booking data and up to 7 years for support messages.",
          "youcanbook.me/robots.txt disallows only HubSpot preview and preference paths. support.youcanbook.me/robots.txt disallows account, search and request paths; the API article there answered a Cloudflare challenge (403), which is the host's block, not a robots rule. ycbm.capacity.com and ycbm.stoplight.io allow all.",
          "The status page linked from youcanbook.me/help, www.youcanbookmestatus.com, did not resolve from our reader on 3 November 2026 (DNS), with or without www, so no incident history was read.",
          "youcanbook.me/.well-known/security.txt returns 404. The security page gives compliance@youcanbook.me as its contact.",
          "RDAP for youcanbook.me (rdap.nic.me) could not be reached from our shell, so the registration date is blank.",
          "The product updates page at youcanbook.me/product-updates is dated by month; its newest entry is September 2026 (registered SMS numbers), which lastRelease records as the first of that month."
        ],
        "score": 70
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/youcanbookme.json",
      "live": {
        "slug": "youcanbookme",
        "probe": {
          "target": "https://api.youcanbook.me/v1",
          "method": "get",
          "lastAt": "2026-11-04T21:39:54.948803292Z",
          "lastOk": true,
          "lastStatus": 400,
          "lastMs": 406,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 200,
          "p95ms24h": 447,
          "samples24h": 64,
          "samples30d": 64,
          "days": [
            {
              "date": "2026-11-04",
              "probes": 64,
              "ok": 64
            }
          ]
        },
        "vendorStatus": {
          "page": "https://www.youcanbookmestatus.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-11-04T21:27:01.611847667Z"
        },
        "securityTxt": {
          "url": "https://youcanbook.me/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-11-04T15:54:28.156243558Z"
        },
        "updatedAt": "2026-11-04T21:39:54.948803292Z"
      }
    },
    "edges": [
      {
        "by": 56,
        "category": "schema",
        "leads": "aurinko-calendar",
        "name": "Schema \u0026 documentation",
        "reasons": {
          "a": "Public OpenAPI 3.0.0 spec with 112 paths and 154 operations (25). `llms.txt` and a Markdown copy of every docs page (10). Every operation has a summary but only 17 have a description, and 193 of 893 schema properties are described (8). Enums appear in 44 of 190 schemas, but only two schemas mark required fields (8). 110 operations carry a cURL sample and the Errors section shows the JSON body, though operations declare only 401 and a default response (10). `/v1` in the path and spec version 1.0.0, with no changelog found (5).",
          "b": "The reference lives on Stoplight at ycbm.stoplight.io, which usually renders an OpenAPI file, but our reader got only the workspace shell, and no spec file was found at the usual paths; the help centre article on support.youcanbook.me sat behind a Cloudflare challenge. Scored absent (0 of 25). No llms.txt on youcanbook.me, the help centre or the Stoplight host (0). Descriptions, typed inputs and required fields unread (0 of 20, 0 of 15). The one response we saw is a JSON envelope with `code`, `errors`, `httpCode`, `message` and `status`, and the help centre gives a worked webhook payload (4 of 15). A /v1 path and `x-api-version: 1.18` and `x-api-revision` headers, with a product updates page dated by month and no API changelog (6 of 15). 0 + 0 + 0 + 0 + 4 + 6 = 10."
        },
        "scores": {
          "a": 66,
          "b": 10
        }
      },
      {
        "by": 43,
        "category": "ergonomics",
        "leads": "aurinko-calendar",
        "name": "Agent ergonomics",
        "reasons": {
          "a": "Graded on the REST API. `returnRecord=false` trims write responses to an ID and reads take `timeMin` and `timeMax`, but no field selection was found (12). `pageToken` on lists, `limit` and `offset` on booking profiles, and delta tokens for incremental sync (16). Errors carry `code`, `message`, `requestId` and the provider's `originalError`, with retry advice per status (14). No idempotency keys. `If-Match` with an ETag is required on event updates, and `reserveForMinutes` holds a slot before a booking is confirmed (8). `primary` works as a calendar ID and few parameters are required, but no official SDK was found (6).",
          "b": "Response sizing, field selection and pagination are in the unread reference (3 of 25, 0 of 20). The error envelope names a machine code and a message an agent can branch on (8 of 20). No idempotency key or safe-retry guidance found (0 of 20). No official SDK, and the required parameters are unread (2 of 15). 3 + 0 + 8 + 0 + 2 = 13."
        },
        "scores": {
          "a": 56,
          "b": 13
        }
      },
      {
        "by": 25,
        "category": "reliability",
        "leads": "aurinko-calendar",
        "name": "Reliability",
        "reasons": {
          "a": "Graded as a hosted API. No status page is linked from the site, the docs or the spec, and status.aurinko.io did not resolve (0). With no readable incident history the record scores 5. The spec gives a limit of 250 requests a second (15). It advises exponential backoff on 429 and 5xx and a retry on 408, with no Retry-After header documented and no idempotency keys for event or booking writes (10). No SLA found, and the terms supply the service as is (0). The API is at `/v1` with no beta label (10).",
          "b": "Read with the hosted lines. The help page links a status page at www.youcanbookmestatus.com, but the host did not resolve from our reader with or without www on 3 November 2026, so it is scored as not established rather than as a finding about the vendor (0). No readable history (5). No rate limit with a number in the help centre articles, the pricing page or the API's own error response; the API reference could not be read (0). No 429 or retry guidance and no idempotency key found (0). No SLA, and the terms say the service is not guaranteed to be available 100 per cent of the time (0). The API reports version 1.18 in its headers and is sold on the Team plan, so generally available (10). 0 + 5 + 0 + 0 + 0 + 10 = 15."
        },
        "scores": {
          "a": 40,
          "b": 15
        }
      },
      {
        "by": 17,
        "category": "security",
        "leads": "aurinko-calendar",
        "name": "Security \u0026 auth",
        "reasons": {
          "a": "Per-user OAuth with 11 scopes, `Calendar.Read` separate from `Calendar.ReadWrite`, and `DELETE /v1/account/token` to revoke. The application's client ID and secret, sent as Basic auth with `X-Aurinko-Account-Id`, reach every connected account, and the implicit grant is still supported though not recommended (22). A read-only scope exists, with no confirmation step for deletes (12). Event content from third parties is returned with no injection guidance (0). No operator audit log found in the docs (0). A security statement with a reporting address, security@yoxel.com, and penetration tests claimed. SOC 2 is not yet held, with no bug bounty and no security.txt (7). `rescheduleToken` travels in the query string on booking calls. No deduction, because it is not the API credential.",
          "b": "One account-wide API key sent as the HTTP Basic password with the account ID or email, generated and deleted by the Account Owner only; no scopes, expiry or per-user keys are documented (10 of 30). No read-only mode or confirmation step found (0 of 20). The API and webhooks carry names, answers and notes written by people who book, with no injection guidance (2 of 15). No audit log or per-call visibility found (0 of 15). SOC 2 Type II and ISO/IEC 27001:2022 (certificate 20/3433, 20 February 2024) and third-party penetration tests on the security page, but no security.txt (404), bug bounty or disclosure policy (12 of 20). 10 + 0 + 2 + 0 + 12 = 24."
        },
        "scores": {
          "a": 41,
          "b": 24
        }
      },
      {
        "by": 16,
        "category": "transparency",
        "leads": "youcanbookme",
        "name": "Transparency \u0026 trust",
        "reasons": {
          "a": "Closed service under a Terms of Services Agreement naming Yoxel, Inc. of California, last updated 11 August 2022 (15). The docs say content is passed through and never stored, with only IDs cached, and the privacy policy commits to Google's Limited Use requirements. The policy gives no retention period, and no DPA was found (12). No deprecation policy or dated notices found (0). No sub-processor list or data location. The security statement names no cloud provider (0).",
          "b": "Closed service with terms (18 March 2026) naming AI Software (Capacity) UK Ltd under English law, which bar data-mining and robot tools without consent and let the company end membership without notice for a breach (15 of 30). The privacy notice (16 March 2026) states retention periods (24 months for booking data by default, 7 years for support messages), AWS hosting in the United States, a DPA on request and no training of external AI models on booking data; the security page says no subprocessor list is published, and the two agree on AWS (22 of 30). No deprecation policy or dated notice, and clause 18.4 allows changes to the service without notice (3 of 20). Providers are named in the privacy notice (AWS, Stripe, Google Analytics, Mixpanel, Hotjar, HubSpot) with US hosting, but there is no list with locations per processor (12 of 20). 15 + 22 + 3 + 12 = 52."
        },
        "scores": {
          "a": 45,
          "b": 61
        }
      },
      {
        "by": 10,
        "category": "payments",
        "leads": "aurinko-calendar",
        "name": "Payments \u0026 pricing",
        "reasons": {
          "a": "No x402, MPP or L402 (0). Prices per active account a month published without login, $1, $1.50 and $2 (20). A 14-day trial with no card (20). Signup is in a browser at app.aurinko.io, and each calendar needs its owner's OAuth consent (0).",
          "b": "No x402, MPP or L402 (0). Seat prices public in the help centre's pricing article (Individual $9, Professional $13, Teams $18 a month, less yearly and over two years); the pricing page's own figures did not render for us, and nothing is priced per call (10). A Free plan and a 14-day trial of every feature with no card (20). A person signs up in a browser and the Account Owner generates the key by hand (0). 0 + 10 + 20 + 0 = 30."
        },
        "scores": {
          "a": 40,
          "b": 30
        }
      }
    ],
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Yoxel, Inc.",
        "b": "AI Software (Capacity) UK Ltd, trading as YouCanBookMe",
        "name": "Vendor"
      },
      {
        "a": "https://api.aurinko.io",
        "b": "https://api.youcanbook.me/v1",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Paid",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service under Yoxel's Terms of Services Agreement",
        "b": "none",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "yes",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "llms.txt"
      },
      {
        "a": "none",
        "b": "2026-09-01",
        "name": "Last release"
      },
      {
        "a": "2022-08-11",
        "b": "2026-03-18",
        "name": "Terms last updated"
      },
      {
        "a": "2022-08-11",
        "b": "2026-03-16",
        "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": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "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": "none",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Aurinko Calendar API scores 45.7 (E) on agent readiness against YouCanBookMe API's 22.5 (F), and leads in 5 of 7 scored categories. YouCanBookMe API leads on maintenance \u0026 community and transparency \u0026 trust.",
        "question": "Which is better for AI agents, Aurinko Calendar API or YouCanBookMe API?"
      },
      {
        "answer": "Aurinko Calendar API uses an OAuth sign-in. YouCanBookMe API needs an API key.",
        "question": "Do Aurinko Calendar API and YouCanBookMe API need an API key?"
      },
      {
        "answer": "Yes. Aurinko Calendar API has a hosted endpoint at https://api.aurinko.io and YouCanBookMe API at https://api.youcanbook.me/v1.",
        "question": "Can an agent call Aurinko Calendar API and YouCanBookMe API without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 40 against 15",
          "Schema \u0026 documentation, 66 against 10",
          "Agent ergonomics, 56 against 13",
          "Security \u0026 auth, 41 against 24",
          "Payments \u0026 pricing, 40 against 30"
        ],
        "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"
      },
      {
        "aheadOn": [
          "Maintenance \u0026 community, 28 against 20",
          "Transparency \u0026 trust, 61 against 45"
        ],
        "also": [
          "Free to start without a card"
        ],
        "goodFor": "A booking-page product for small businesses, closest to calendly and savvycal in scheduling.",
        "slug": "youcanbookme",
        "watchFor": "The API reference at ycbm.stoplight.io could not be read without JavaScript, and the help centre's API article sat behind a Cloudflare challenge"
      }
    ],
    "history": {
      "aurinko-calendar": [
        {
          "causes": [
            "correction"
          ],
          "date": "2026-10-28",
          "delta": -0.2,
          "from": 45.9,
          "fromGrade": "E",
          "to": 45.7,
          "toGrade": "E"
        },
        {
          "causes": [
            "method"
          ],
          "date": "2026-10-27",
          "delta": 0.3,
          "from": 45.6,
          "fromGrade": "E",
          "to": 45.9,
          "toGrade": "E"
        }
      ],
      "youcanbookme": null
    },
    "job": {
      "capability": "calendar.booking",
      "name": "Calendar booking"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar.json",
        "title": "Acuity Scheduling API vs Aurinko Calendar API",
        "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-aurinko-calendar.json",
        "title": "Agenda Hero vs Aurinko Calendar API",
        "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-aurinko-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-cozi.json",
        "title": "Aurinko Calendar API vs Cozi Family Organizer",
        "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-cozi"
      },
      {
        "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"
      },
      {
        "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-savvycal.json",
        "title": "Aurinko Calendar API vs SavvyCal API + MCP",
        "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-savvycal"
      },
      {
        "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-zoom-scheduler.json",
        "title": "Aurinko Calendar API vs Zoom Scheduler API",
        "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-zoom-scheduler"
      },
      {
        "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-youcanbookme.json",
        "title": "Acuity Scheduling API vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-youcanbookme"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cal-com-vs-youcanbookme.json",
        "title": "Cal.com API v2 + MCP vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/cal-com-vs-youcanbookme"
      },
      {
        "json": "https://www.anchorterminal.com/compare/calendly-vs-youcanbookme.json",
        "title": "Calendly API + MCP vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/calendly-vs-youcanbookme"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cronofy-vs-youcanbookme.json",
        "title": "Cronofy API vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/cronofy-vs-youcanbookme"
      },
      {
        "json": "https://www.anchorterminal.com/compare/nylas-calendar-vs-youcanbookme.json",
        "title": "Nylas Calendar and Scheduler API vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/nylas-calendar-vs-youcanbookme"
      },
      {
        "json": "https://www.anchorterminal.com/compare/savvycal-vs-youcanbookme.json",
        "title": "SavvyCal API + MCP vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/savvycal-vs-youcanbookme"
      },
      {
        "json": "https://www.anchorterminal.com/compare/youcanbookme-vs-zoom-scheduler.json",
        "title": "YouCanBookMe API vs Zoom Scheduler API",
        "url": "https://www.anchorterminal.com/compare/youcanbookme-vs-zoom-scheduler"
      },
      {
        "json": "https://www.anchorterminal.com/compare/apiroc-vs-youcanbookme.json",
        "title": "Apiroc Unified Calendar API vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/apiroc-vs-youcanbookme"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-calendar-api-vs-youcanbookme.json",
        "title": "Google Calendar API vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/google-calendar-api-vs-youcanbookme"
      },
      {
        "json": "https://www.anchorterminal.com/compare/microsoft-graph-calendar-vs-youcanbookme.json",
        "title": "Microsoft Graph Calendar API vs YouCanBookMe API",
        "url": "https://www.anchorterminal.com/compare/microsoft-graph-calendar-vs-youcanbookme"
      }
    ],
    "panel": null,
    "scores": [
      {
        "aurinko-calendar": 40,
        "by": 25,
        "edge": "aurinko-calendar",
        "key": "reliability",
        "name": "Reliability",
        "weight": 16,
        "youcanbookme": 15
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "aurinko-calendar": 66,
        "by": 56,
        "edge": "aurinko-calendar",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13,
        "youcanbookme": 10
      },
      {
        "aurinko-calendar": 56,
        "by": 43,
        "edge": "aurinko-calendar",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13,
        "youcanbookme": 13
      },
      {
        "aurinko-calendar": 41,
        "by": 17,
        "edge": "aurinko-calendar",
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14,
        "youcanbookme": 24
      },
      {
        "aurinko-calendar": 40,
        "by": 10,
        "edge": "aurinko-calendar",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10,
        "youcanbookme": 30
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "aurinko-calendar": 20,
        "by": 8,
        "edge": "youcanbookme",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7,
        "youcanbookme": 28
      },
      {
        "aurinko-calendar": 45,
        "by": 16,
        "edge": "youcanbookme",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7,
        "youcanbookme": 61
      }
    ],
    "summary": "Aurinko Calendar API scores 45.7 (E) on agent readiness against YouCanBookMe API's 22.5 (F), and leads in 5 of 7 scored categories. YouCanBookMe API leads on maintenance \u0026 community and transparency \u0026 trust. Both do calendar booking.",
    "tasks": null,
    "tutorials": [],
    "verdicts": {
      "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.",
      "youcanbookme": "A booking-page service with a Team-plan REST API over HTTP Basic auth and one account-wide key, SOC 2 Type II and ISO 27001 on its security page, and a 14-day trial without a card. Its API reference renders only by JavaScript and its status page did not resolve for us, so endpoints, limits and incidents are unverified."
    }
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-youcanbookme",
    "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-youcanbookme.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-youcanbookme.md",
    "mcp": "https://www.anchorterminal.com/mcp",
    "slim": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-youcanbookme.min.md"
  },
  "markdown": "Aurinko Calendar API scores 45.7 (E) on agent readiness against YouCanBookMe API's 22.5 (F), and leads in 5 of 7 scored categories. YouCanBookMe API leads on maintenance \u0026 community and transparency \u0026 trust. Both do calendar booking.\n\n- Aurinko Calendar API: grade E, 45.7/100, rank #1111 of 1349. Markdown https://www.anchorterminal.com/tools/aurinko-calendar.md · JSON https://www.anchorterminal.com/api/v1/tools/aurinko-calendar.json\n- YouCanBookMe API: grade F, 22.5/100, rank #1287 of 1349. Markdown https://www.anchorterminal.com/tools/youcanbookme.md · JSON https://www.anchorterminal.com/api/v1/tools/youcanbookme.json\n- Best calendar and scheduling APIs for AI agents: https://www.anchorterminal.com/best/scheduling/index.md\n- All 89 scheduling comparisons: https://www.anchorterminal.com/compare/scheduling/index.md\n\n## Which one, for what\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- Reliability, 40 against 15\n- Schema \u0026 documentation, 66 against 10\n- Agent ergonomics, 56 against 13\n- Security \u0026 auth, 41 against 24\n- Payments \u0026 pricing, 40 against 30\n\nWatch for: No status page, incident history or SLA found, and the terms supply the service as is\n\n### YouCanBookMe API (F)\n\nGood for: A booking-page product for small businesses, closest to calendly and savvycal in scheduling.\n\nAhead on:\n- Maintenance \u0026 community, 28 against 20\n- Transparency \u0026 trust, 61 against 45\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: The API reference at ycbm.stoplight.io could not be read without JavaScript, and the help centre's API article sat behind a Cloudflare challenge\n\n\n## Why the edge\n\n### Schema \u0026 documentation: Aurinko Calendar API +56\n\n- Aurinko Calendar API (66): Public OpenAPI 3.0.0 spec with 112 paths and 154 operations (25). `llms.txt` and a Markdown copy of every docs page (10). Every operation has a summary but only 17 have a description, and 193 of 893 schema properties are described (8). Enums appear in 44 of 190 schemas, but only two schemas mark required fields (8). 110 operations carry a cURL sample and the Errors section shows the JSON body, though operations declare only 401 and a default response (10). `/v1` in the path and spec version 1.0.0, with no changelog found (5).\n- YouCanBookMe API (10): The reference lives on Stoplight at ycbm.stoplight.io, which usually renders an OpenAPI file, but our reader got only the workspace shell, and no spec file was found at the usual paths; the help centre article on support.youcanbook.me sat behind a Cloudflare challenge. Scored absent (0 of 25). No llms.txt on youcanbook.me, the help centre or the Stoplight host (0). Descriptions, typed inputs and required fields unread (0 of 20, 0 of 15). The one response we saw is a JSON envelope with `code`, `errors`, `httpCode`, `message` and `status`, and the help centre gives a worked webhook payload (4 of 15). A /v1 path and `x-api-version: 1.18` and `x-api-revision` headers, with a product updates page dated by month and no API changelog (6 of 15). 0 + 0 + 0 + 0 + 4 + 6 = 10.\n\n### Agent ergonomics: Aurinko Calendar API +43\n\n- Aurinko Calendar API (56): Graded on the REST API. `returnRecord=false` trims write responses to an ID and reads take `timeMin` and `timeMax`, but no field selection was found (12). `pageToken` on lists, `limit` and `offset` on booking profiles, and delta tokens for incremental sync (16). Errors carry `code`, `message`, `requestId` and the provider's `originalError`, with retry advice per status (14). No idempotency keys. `If-Match` with an ETag is required on event updates, and `reserveForMinutes` holds a slot before a booking is confirmed (8). `primary` works as a calendar ID and few parameters are required, but no official SDK was found (6).\n- YouCanBookMe API (13): Response sizing, field selection and pagination are in the unread reference (3 of 25, 0 of 20). The error envelope names a machine code and a message an agent can branch on (8 of 20). No idempotency key or safe-retry guidance found (0 of 20). No official SDK, and the required parameters are unread (2 of 15). 3 + 0 + 8 + 0 + 2 = 13.\n\n### Reliability: Aurinko Calendar API +25\n\n- Aurinko Calendar API (40): Graded as a hosted API. No status page is linked from the site, the docs or the spec, and status.aurinko.io did not resolve (0). With no readable incident history the record scores 5. The spec gives a limit of 250 requests a second (15). It advises exponential backoff on 429 and 5xx and a retry on 408, with no Retry-After header documented and no idempotency keys for event or booking writes (10). No SLA found, and the terms supply the service as is (0). The API is at `/v1` with no beta label (10).\n- YouCanBookMe API (15): Read with the hosted lines. The help page links a status page at www.youcanbookmestatus.com, but the host did not resolve from our reader with or without www on 3 November 2026, so it is scored as not established rather than as a finding about the vendor (0). No readable history (5). No rate limit with a number in the help centre articles, the pricing page or the API's own error response; the API reference could not be read (0). No 429 or retry guidance and no idempotency key found (0). No SLA, and the terms say the service is not guaranteed to be available 100 per cent of the time (0). The API reports version 1.18 in its headers and is sold on the Team plan, so generally available (10). 0 + 5 + 0 + 0 + 0 + 10 = 15.\n\n### Security \u0026 auth: Aurinko Calendar API +17\n\n- Aurinko Calendar API (41): Per-user OAuth with 11 scopes, `Calendar.Read` separate from `Calendar.ReadWrite`, and `DELETE /v1/account/token` to revoke. The application's client ID and secret, sent as Basic auth with `X-Aurinko-Account-Id`, reach every connected account, and the implicit grant is still supported though not recommended (22). A read-only scope exists, with no confirmation step for deletes (12). Event content from third parties is returned with no injection guidance (0). No operator audit log found in the docs (0). A security statement with a reporting address, security@yoxel.com, and penetration tests claimed. SOC 2 is not yet held, with no bug bounty and no security.txt (7). `rescheduleToken` travels in the query string on booking calls. No deduction, because it is not the API credential.\n- YouCanBookMe API (24): One account-wide API key sent as the HTTP Basic password with the account ID or email, generated and deleted by the Account Owner only; no scopes, expiry or per-user keys are documented (10 of 30). No read-only mode or confirmation step found (0 of 20). The API and webhooks carry names, answers and notes written by people who book, with no injection guidance (2 of 15). No audit log or per-call visibility found (0 of 15). SOC 2 Type II and ISO/IEC 27001:2022 (certificate 20/3433, 20 February 2024) and third-party penetration tests on the security page, but no security.txt (404), bug bounty or disclosure policy (12 of 20). 10 + 0 + 2 + 0 + 12 = 24.\n\n### Transparency \u0026 trust: YouCanBookMe API +16\n\n- Aurinko Calendar API (45): Closed service under a Terms of Services Agreement naming Yoxel, Inc. of California, last updated 11 August 2022 (15). The docs say content is passed through and never stored, with only IDs cached, and the privacy policy commits to Google's Limited Use requirements. The policy gives no retention period, and no DPA was found (12). No deprecation policy or dated notices found (0). No sub-processor list or data location. The security statement names no cloud provider (0).\n- YouCanBookMe API (61): Closed service with terms (18 March 2026) naming AI Software (Capacity) UK Ltd under English law, which bar data-mining and robot tools without consent and let the company end membership without notice for a breach (15 of 30). The privacy notice (16 March 2026) states retention periods (24 months for booking data by default, 7 years for support messages), AWS hosting in the United States, a DPA on request and no training of external AI models on booking data; the security page says no subprocessor list is published, and the two agree on AWS (22 of 30). No deprecation policy or dated notice, and clause 18.4 allows changes to the service without notice (3 of 20). Providers are named in the privacy notice (AWS, Stripe, Google Analytics, Mixpanel, Hotjar, HubSpot) with US hosting, but there is no list with locations per processor (12 of 20). 15 + 22 + 3 + 12 = 52.\n\n### Payments \u0026 pricing: Aurinko Calendar API +10\n\n- Aurinko Calendar API (40): No x402, MPP or L402 (0). Prices per active account a month published without login, $1, $1.50 and $2 (20). A 14-day trial with no card (20). Signup is in a browser at app.aurinko.io, and each calendar needs its owner's OAuth consent (0).\n- YouCanBookMe API (30): No x402, MPP or L402 (0). Seat prices public in the help centre's pricing article (Individual $9, Professional $13, Teams $18 a month, less yearly and over two years); the pricing page's own figures did not render for us, and nothing is priced per call (10). A Free plan and a 14-day trial of every feature with no card (20). A person signs up in a browser and the Account Owner generates the key by hand (0). 0 + 10 + 20 + 0 = 30.\n\n## Score by category\n\n| Category | Weight | Aurinko Calendar API | YouCanBookMe API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 40 | 15 | Aurinko Calendar API +25 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 66 | 10 | Aurinko Calendar API +56 |\n| Agent ergonomics | 13% (16.2 this run) | 56 | 13 | Aurinko Calendar API +43 |\n| Security \u0026 auth | 14% (17.5 this run) | 41 | 24 | Aurinko Calendar API +17 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 30 | 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) | 20 | 28 | YouCanBookMe API +8 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 45 | 61 | YouCanBookMe API +16 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **45.7 · E** | **22.5 · F** | |\n\n## Facts side by side\n\n| Fact | Aurinko Calendar API | YouCanBookMe API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Yoxel, Inc. | AI Software (Capacity) UK Ltd, trading as YouCanBookMe |\n| Hosted endpoint | `https://api.aurinko.io` | `https://api.youcanbook.me/v1` |\n| Transports | HTTP | HTTP |\n| Auth | OAuth | API key |\n| Pricing | Paid | Freemium |\n| x402 | no | no |\n| Licence | Proprietary service under Yoxel's Terms of Services Agreement | none |\n| Read-only variant documented | no | yes |\n| llms.txt | yes | no |\n| Last release | none | 2026-09-01 |\n| Terms last updated | 2022-08-11 | 2026-03-18 |\n| Privacy policy last updated | 2022-08-11 | 2026-03-16 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | yes | yes |\n| Terms restrict benchmarking | yes | not found in the text |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | yes | not found in the text |\n| Agent reviews | 3.5/5 (4) | none |\n\n## How the scores have moved\n\n### Aurinko Calendar API\n\n- -0.2 on 28 October 2026: correction\n- +0.3 on 27 October 2026: checklist\n\n### YouCanBookMe API\n\nNo score change since it was listed.\n\n## Verdicts\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**YouCanBookMe API.** A booking-page service with a Team-plan REST API over HTTP Basic auth and one account-wide key, SOC 2 Type II and ISO 27001 on its security page, and a 14-day trial without a card. Its API reference renders only by JavaScript and its status page did not resolve for us, so endpoints, limits and incidents are unverified.\n\n## Before you call either\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### YouCanBookMe API\n\n1. Ask the Account Owner for the account ID and API key, since Administrators and Contributors cannot generate one, and send them as HTTP Basic credentials\n2. Read the API reference at ycbm.stoplight.io in a browser before planning calls; its endpoints and parameters were not readable to us\n3. Treat the key as full account access and keep it out of logs, since no scoped or read-only key is documented\n4. Expect a JSON error body with `code`, `message` and `status` on failures, and check for an existing booking before repeating a create, since no idempotency key is documented\n5. Use booking-page webhooks for booking, reschedule, cancel, reminder, follow-up and no-show events instead of polling\n\n## Questions\n\n### Which is better for AI agents, Aurinko Calendar API or YouCanBookMe API?\n\nAurinko Calendar API scores 45.7 (E) on agent readiness against YouCanBookMe API's 22.5 (F), and leads in 5 of 7 scored categories. YouCanBookMe API leads on maintenance \u0026 community and transparency \u0026 trust.\n\n### Do Aurinko Calendar API and YouCanBookMe API need an API key?\n\nAurinko Calendar API uses an OAuth sign-in. YouCanBookMe API needs an API key.\n\n### Can an agent call Aurinko Calendar API and YouCanBookMe API without installing anything?\n\nYes. Aurinko Calendar API has a hosted endpoint at https://api.aurinko.io and YouCanBookMe API at https://api.youcanbook.me/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/aurinko-calendar-vs-youcanbookme.json, and with the fewest tokens: https://www.anchorterminal.com/compare/aurinko-calendar-vs-youcanbookme.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"aurinko-calendar\", \"b\": \"youcanbookme\"}`. From a terminal: `anchor compare aurinko-calendar youcanbookme`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/aurinko-calendar.json and https://www.anchorterminal.com/api/v1/tools/youcanbookme.json\n\n## Other comparisons with Aurinko Calendar API or YouCanBookMe API\n\n- [Acuity Scheduling API vs Aurinko Calendar API](https://www.anchorterminal.com/compare/acuity-scheduling-vs-aurinko-calendar.md)\n- [Agenda Hero vs Aurinko Calendar API](https://www.anchorterminal.com/compare/agenda-hero-vs-aurinko-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 Cozi Family Organizer](https://www.anchorterminal.com/compare/aurinko-calendar-vs-cozi.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- [Aurinko Calendar API vs SavvyCal API + MCP](https://www.anchorterminal.com/compare/aurinko-calendar-vs-savvycal.md)\n- [Aurinko Calendar API vs Zoom Scheduler API](https://www.anchorterminal.com/compare/aurinko-calendar-vs-zoom-scheduler.md)\n- [Acuity Scheduling API vs YouCanBookMe API](https://www.anchorterminal.com/compare/acuity-scheduling-vs-youcanbookme.md)\n- [Cal.com API v2 + MCP vs YouCanBookMe API](https://www.anchorterminal.com/compare/cal-com-vs-youcanbookme.md)\n- [Calendly API + MCP vs YouCanBookMe API](https://www.anchorterminal.com/compare/calendly-vs-youcanbookme.md)\n- [Cronofy API vs YouCanBookMe API](https://www.anchorterminal.com/compare/cronofy-vs-youcanbookme.md)\n- [Nylas Calendar and Scheduler API vs YouCanBookMe API](https://www.anchorterminal.com/compare/nylas-calendar-vs-youcanbookme.md)\n- [SavvyCal API + MCP vs YouCanBookMe API](https://www.anchorterminal.com/compare/savvycal-vs-youcanbookme.md)\n- [YouCanBookMe API vs Zoom Scheduler API](https://www.anchorterminal.com/compare/youcanbookme-vs-zoom-scheduler.md)\n- [Apiroc Unified Calendar API vs YouCanBookMe API](https://www.anchorterminal.com/compare/apiroc-vs-youcanbookme.md)\n- [Google Calendar API vs YouCanBookMe API](https://www.anchorterminal.com/compare/google-calendar-api-vs-youcanbookme.md)\n- [Microsoft Graph Calendar API vs YouCanBookMe API](https://www.anchorterminal.com/compare/microsoft-graph-calendar-vs-youcanbookme.md)\n",
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    "description": "Aurinko Calendar scores 45.7 (E) to YouCanBookMe's 22.5 (F) for calendar booking. Prices, MCP, x402, uptime and agent notes side by side.",
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