# TopCal

> Agent-native scheduling for humans and AI agents

TopCal is scheduling software for humans and AI agents on the same calendars. Humans share a booking link. Agents check free/busy and book via REST, MCP, or CLI.

When to use TopCal: a public link an agent can complete (slots → email OTP → confirm); a host who wants Google or Microsoft on device-auth CLI/MCP without pasting keys; Meet/Teams on the event. How to call it: read https://topcal.ai/.well-known/agent-instructions.md.

## Humans

Send `https://topcal.ai/{workspace}/{username}/{eventSlug}`. You never pick the time.

## Agents

- Guest book: https://topcal.ai/developers.md — no API key
- Host setup: https://topcal.ai/skill/SKILL.md
- OpenAPI: https://app.topcal.ai/api/v1/openapi
- Docs: https://app.topcal.ai/docs
- MCP (host): https://app.topcal.ai/api/mcp/mcp
- MCP (public booker): https://topcal.ai/api/mcp/public/mcp

## Pricing

14-day Pro trial, no credit card. During is 30 live minutes for the whole workspace, web only. Then Free $0 (10 meetings / calendar / 30 days, no During), Starter $20/calendar (60 web), or Pro $99/calendar (600 web + native). Details: https://topcal.ai/pricing.md

## Machine-readable

- https://topcal.ai/llms.txt
- https://topcal.ai/index.md (this file)
- https://topcal.ai/index.json
- https://topcal.ai/developers.md
- https://topcal.ai/developers.json
- https://topcal.ai/pricing.md
- https://topcal.ai/pricing.json
- https://topcal.ai/skill/SKILL.md
- https://topcal.ai/.well-known/agent-instructions.md
- https://topcal.ai/.well-known/errors.json
- https://topcal.ai/sitemap.xml