Cal.com
Cal.com is open-source scheduling infrastructure (Calendly alternative) available as a managed cloud service or self-hosted deployment. The Cal.com API v2 exposes bookings, event types, schedules, availability, slots, webhooks, OAuth, teams, organizations, OOO, conferencing, destination calendars, and the Cal.com Atoms (Platform) for embedding scheduling primitives into other apps.
Cal.com publishes 22 APIs on the APIs.io network, including Api Keys API, Bookings API, Bookings / Attendees API, and 19 more. Tagged areas include Productivity, Scheduling, Calendar, Open Source, and Booking.
The Cal.com catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.
Cal.com’s developer surface includes documentation, pricing, GitHub presence, engineering blog, and 9 more developer resources.
Kin Score
APIs 22
Individual APIs this provider publishes, each with its own machine-readable definition.
Cal.com Api Keys API
The Api Keys API from Cal.com — 1 operation(s) for api keys.
Cal.com Bookings API
The Bookings API from Cal.com — 16 operation(s) for bookings.
Cal.com Bookings / Attendees API
The Bookings / Attendees API from Cal.com — 2 operation(s) for bookings / attendees.
Cal.com Bookings / Guests API
The Bookings / Guests API from Cal.com — 1 operation(s) for bookings / guests.
Cal.com Cal Unified Calendars API
The Cal Unified Calendars API from Cal.com — 8 operation(s) for cal unified calendars.
Cal.com Calendars API
The Calendars API from Cal.com — 9 operation(s) for calendars.
Cal.com Conferencing API
The Conferencing API from Cal.com — 7 operation(s) for conferencing.
Cal.com Deprecated: Platform / Managed Users API
The Deprecated: Platform / Managed Users API from Cal.com — 4 operation(s) for deprecated: platform / managed users.
Cal.com Deprecated: Platform OAuth Clients API
The Deprecated: Platform OAuth Clients API from Cal.com — 2 operation(s) for deprecated: platform oauth clients.
Cal.com Deprecated: Platform / Webhooks API
The Deprecated: Platform / Webhooks API from Cal.com — 2 operation(s) for deprecated: platform / webhooks.
Cal.com Destination Calendars API
The Destination Calendars API from Cal.com — 1 operation(s) for destination calendars.
Cal.com Event Types API
The Event Types API from Cal.com — 2 operation(s) for event types.
Cal.com Event Types Private Links API
The Event Types Private Links API from Cal.com — 2 operation(s) for event types private links.
Cal.com Event Types / Webhooks API
The Event Types / Webhooks API from Cal.com — 2 operation(s) for event types / webhooks.
Cal.com Me API
The Me API from Cal.com — 1 operation(s) for me.
Cal.com OAuth2 API
The OAuth2 API from Cal.com — 2 operation(s) for oauth2.
Cal.com Schedules API
The Schedules API from Cal.com — 3 operation(s) for schedules.
Cal.com Selected Calendars API
The Selected Calendars API from Cal.com — 1 operation(s) for selected calendars.
Cal.com Slots API
The Slots API from Cal.com — 3 operation(s) for slots.
Cal.com Stripe API
The Stripe API from Cal.com — 3 operation(s) for stripe.
Cal.com Verified Resources API
The Verified Resources API from Cal.com — 8 operation(s) for verified resources.
Cal.com Webhooks API
The Webhooks API from Cal.com — 2 operation(s) for webhooks.
Scroll for all 22
Open Collections 1
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Cal.diy API v2
OPEN COLLECTIONPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Cal Com Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Cal Com Finops
FINOPSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Cal.com Webhooks
AsyncAPI definition for Cal.com's webhook surface. Cal.com webhooks are HTTP POST deliveries from Cal.com to a developer-defined `subscriberUrl` registered via the Cal.com Webho...
ASYNCAPISpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Cal.com API Rules
SPECTRALSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API