Cal.com

Open-source scheduling infrastructure with a public REST API for managing calendars, event types, bookings, teams, and availability, self-hostable or available as Cal.com Cloud.

Cal.com publishes 1 API on the APIs.io network. Tagged areas include Scheduling, Calendars, Bookings, Open-Source, and Event Types.

Cal.com’s developer surface includes documentation, pricing, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

23.1/100 emerging ▬ flat Agent 18/100 agent aware Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

1 APIs

Scheduling Calendars Bookings Open-Source Event Types

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 23.1/100 · emerging

Contract Quality 9.7 / 25

Developer Ergonomics 2.4 / 20

Access Clarity 3.7 / 20

Operational Transparency 0.7 / 13

Contract Governance 0.0 / 12

Discoverability 6.7 / 10

Agent readiness — 18/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/calcom: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Cal.com REST API v2

REST API providing full programmatic control over Cal.com resources including calendars, event types, bookings, schedules, teams, and organizations. Supports OAuth and API key a...

GraphQL 1

GraphQL schemas published by this provider.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

aid: calcom
name: Cal.com
description: Open-source scheduling infrastructure with a public REST API for managing calendars, event types, bookings, teams,
  and availability, self-hostable or available as Cal.com Cloud.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/calcom.png
url: https://cal.com
baseURL: https://api.cal.com/v2
created: 2026-06-14
modified: 2026-06-14
specificationVersion: '0.23'
tags:
- Scheduling
- Calendars
- Bookings
- Open-Source
- Event Types
tags_raw:
- Scheduling
- Calendars
- Bookings
- Open Source
- Event Types
apis:
- aid: calcom:rest-api-v2
  name: Cal.com REST API v2
  description: REST API providing full programmatic control over Cal.com resources including calendars, event types, bookings,
    schedules, teams, and organizations. Supports OAuth and API key authentication with rate limits starting at 120 requests
    per minute.
  tags:
  - Scheduling
  - Bookings
  - Calendars
  - Event Types
  - Team
  tags_raw:
  - Scheduling
  - Bookings
  - Calendars
  - Event Types
  - Teams
  humanURL: https://cal.com/docs/api-reference/v2/introduction
  baseURL: https://api.cal.com/v2
  properties:
  - url: https://cal.com/docs/api-reference/v2/introduction
    type: Documentation
common:
- type: TrustCenter
  url: security/calcom-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/calcom-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/calcom-domain-security.yml
- url: https://cal.com
  type: Website
- url: https://cal.com/docs
  type: Documentation
- url: https://www.linkedin.com/company/cal-com
  type: LinkedIn
- url: https://github.com/calcom
  type: GitHubOrganization
- url: https://cal.com/pricing
  type: Pricing
- url: plans/calcom-plans.md
  type: Plans
- url: rate-limits/calcom-rate-limits.md
  type: RateLimits
- url: finops/calcom-finops.md
  type: FinOps
- url: https://cal.com/blog/category/all-categories
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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