Head to head · Calendar availability · October 2026 research run

Apiroc Unified Calendar API vs YouCanBookMe API

Apiroc Unified Calendar API scores 41.2 (E) on agent readiness against YouCanBookMe API's 22.5 (F), and leads in 5 of 7 scored categories. YouCanBookMe API leads on transparency & trust. Both do calendar availability.

Best calendar and scheduling APIs for AI agents · All 89 scheduling comparisons

Which one, for what

Apiroc Unified Calendar API E

Best for A small product or an agent builder that needs read and write across Google, Microsoft and iCloud for tens to hundreds of accounts on a tight budget.

Ahead on

  • Reliability, 35 against 15
  • Schema & documentation, 44 against 10
  • Agent ergonomics, 52 against 13
  • Payments & pricing, 40 against 30
  • Maintenance & community, 62 against 28

Watch for

No status page history, changelog, OpenAPI spec, llms.txt or security.txt

YouCanBookMe API F

Best for A booking-page product for small businesses, closest to calendly and savvycal in scheduling.

Ahead on

  • Transparency & trust, 61 against 51

Watch 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

Why the edge

Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.

Agent ergonomics Apiroc Unified Calendar API +39

Apiroc Unified Calendar API 52

Lists take limit and pageToken, and event reads return a syncToken for incremental sync (15). Pagination and sync tokens, with free/busy as a separate endpoint (15). Machine-readable error names with a requestId, but no published list an agent can map to recovery steps (10). No idempotency keys. Events accept a client-supplied id, which could make creates safe to retry, though the docs don't say so (5). Node is the only SDK. Python, PHP and Java are listed as on the way (7).

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.

Schema & documentation Apiroc Unified Calendar API +34

Apiroc Unified Calendar API 44

No OpenAPI spec. A Postman collection is the only machine-readable contract (10). No llms.txt, per the 30 September check (0). Reference pages for five resources with parameters and cURL, TypeScript and Python examples, but little on when to use one endpoint over another (10). Typed inputs in the Node SDK and required fields marked in the docs (10). Examples throughout, and an errors page that gives only the shape (error, message, requestId) and the 2xx, 4xx and 5xx ranges, with no list of error names (9). /v1 in the path but no changelog (5).

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.

Maintenance & community Apiroc Unified Calendar API +34

Apiroc Unified Calendar API 62

Node SDK v2.0.1 on 5 August 2026, 57 days before this check (20). Four SDK releases since 3 July (v1.2.2, v1.3.0, v2.0.0, v2.0.1) (20). No public changelog. Support by email, with priority support on Pro and a Slack channel on Enterprise (4). One current official SDK, in Node (10). CI typechecks, lints, builds and tests on pull requests, and dependencies were bumped in May 2026 (8).

YouCanBookMe API 28

Read as a closed service. The newest product update is dated September 2026 (registered SMS numbers), within 90 days but not 30, taking the month's first day (20 of 30). The previous entry is November 2025, so fewer than three in 90 days (0 of 20). A help centre, a community forum at forum.youcanbook.me and one-to-one support for paid users, with a product updates page that carries no API items (8 of 15). No official SDKs found (0). No package to assess (0). 20 + 0 + 8 + 0 + 0 = 28.

Reliability Apiroc Unified Calendar API +20

Apiroc Unified Calendar API 35

No public status page with history. status.apiroc.com doesn't resolve and the homepage shows only an "All systems operational" badge with a claim of 34B+ API calls (0). No readable incident history (5). Rate limits published with numbers, 20 requests a second in Sandbox and 300 in Production per application, plus 600 a minute per Google account and 1,000 a minute per Microsoft account (15). The docs don't mention 429 or Retry-After, though the official Node SDK reads a retry-after header on 429, and webhook docs say to dedupe on svix-id (5). The terms say availability can't be guaranteed, and no SLA was found on any plan (0). GA, with production use licensed on Pro (10).

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.

Payments & pricing Apiroc Unified Calendar API +10

Apiroc Unified Calendar API 40

No x402, MPP or L402 (0). Plan prices and $0.50 per extra end-user account a month published without login (20). Free plan for 10 end-user accounts with no card (20). Browser signup and a dashboard key, no autonomous route (0).

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.

Transparency & trust YouCanBookMe API +10

Apiroc Unified Calendar API 51

Closed service with terms under Albanian law and an MIT Node SDK (15). Privacy policy (24 August 2026) says event content isn't stored persistently, application logs and analytics are kept 30 days, data isn't used to train models, and Google's Limited Use rules apply. A DPA is published. Webhooks are delivered through Svix, which isn't on the sub-processor list, and webhook message retention has no period (18). 30 days' notice for price rises and sub-processor changes, but no API deprecation policy (3). Five sub-processors listed with locations, and servers stated as US. Svix missing (15).

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.

Score by category

CategoryWeight this runApiroc Unified Calendar APIYouCanBookMe APIEdge
Reliability16%203515Apiroc Unified Calendar API +20
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.24410Apiroc Unified Calendar API +34
Agent ergonomics13%16.25213Apiroc Unified Calendar API +39
Security & auth14%17.52124YouCanBookMe API +3
Payments & pricing10%12.54030Apiroc Unified Calendar API +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86228Apiroc Unified Calendar API +34
Transparency & trust7%8.85161YouCanBookMe API +10
Negative events≤1500
TotalE 41.2/100F 22.5/100

Facts side by side

FactApiroc Unified Calendar APIYouCanBookMe API
KindHTTP APIHTTP API
VendorApirocAI Software (Capacity) UK Ltd, trading as YouCanBookMe
Hosted endpointhttps://api.apiroc.com/api/v1https://api.youcanbook.me/v1
TransportsHTTPHTTP
AuthOAuth or keyAPI key
PricingFreemiumFreemium
x402nono
LicenceMIT (Node SDK)none
Read-only variant documentedyesyes
llms.txtnono
Last release2026-08-052026-09-01
Terms last updated2026-08-242026-03-18
Privacy policy last updated2026-08-242026-03-16
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessyesyes
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticeyesyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularity26 npm/wknone
Agent reviews2/5 (2)none

How the scores have moved

Verdicts

Apiroc Unified Calendar API

$0.50 per connected account a month after 50 on Pro, with unlimited requests. No status page history, changelog, OpenAPI spec, llms.txt or security.txt.

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.

Before you call either

Apiroc Unified Calendar API

  1. Send the key in the x-api-key header from a server, never a browser
  2. Call api.apiroc.com, since the SDK's old default host was api.onecalunified.com
  3. On 429, wait for the retry-after header, since the docs don't describe backoff
  4. Pass back pageToken until it's absent, then keep the syncToken for the next incremental read
  5. Dedupe webhooks on svix-id, since Svix retries deliveries

YouCanBookMe API

  1. 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
  2. Read the API reference at ycbm.stoplight.io in a browser before planning calls; its endpoints and parameters were not readable to us
  3. Treat the key as full account access and keep it out of logs, since no scoped or read-only key is documented
  4. 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
  5. Use booking-page webhooks for booking, reschedule, cancel, reminder, follow-up and no-show events instead of polling

Questions

Which is better for AI agents, Apiroc Unified Calendar API or YouCanBookMe API?

Apiroc Unified Calendar API scores 41.2 (E) on agent readiness against YouCanBookMe API's 22.5 (F), and leads in 5 of 7 scored categories. YouCanBookMe API leads on transparency & trust.

Do Apiroc Unified Calendar API and YouCanBookMe API need an API key?

Apiroc Unified Calendar API takes an API key or an OAuth sign-in. YouCanBookMe API needs an API key.

Can an agent call Apiroc Unified Calendar API and YouCanBookMe API without installing anything?

Yes. Apiroc Unified Calendar API has a hosted endpoint at https://api.apiroc.com/api/v1 and YouCanBookMe API at https://api.youcanbook.me/v1.

Other comparisons with Apiroc Unified Calendar API or YouCanBookMe API

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