Cal.com · agent Twin Score 85

Cal.com capability matrix

Cal.com is open-source scheduling: the Calendly alternative you can self-host. Booking pages are the human product. Platform APIs, webhooks, and the repo itself are the agent product. We score it high for agents because the code is public and the API is meant to be embedded, not reverse-engineered. Twin Score on this directory is 82 for humans and 85 for agents, using the public rubric (interface, onboarding, human docs, collaboration, support, pricing fairness, accessibility, reliability versus API quality, MCP or tool surface, CLI, structured docs, machine auth, quotas, determinism, and skill packaging). Cal.com is sold by Cal.com, founded 2021, headquartered in San Francisco, USA / remote. Pricing in public materials: Open-source self-host; Cloud free through Enterprise. Platform/API billed for embed use. Machine capabilities we record: API excellent, MCP basic, CLI basic, docs strong, auth OAuth and API keys; open source. This page is editorial, not a star rating scraped from users.