# Canary2 > A free, AI-native API and Model Context Protocol (MCP) service. Anonymous calls work at a low rate limit; an optional per-customer API key raises limits, and paid plans add monthly credits. ## API - [Pricing](https://api.canary2.idkyesidontknow.cyou/pricing): Free, Pro, and Scale plans; monthly credits reset each cycle. - Auth: send an `X-API-Key` header (create keys after signing in). - Anonymous requests work at a lower, IP-based rate limit. - [Health](https://api.canary2.idkyesidontknow.cyou/health): liveness probe. ## MCP - The Model Context Protocol surface is served at `https://api.canary2.idkyesidontknow.cyou/mcp` (streamable HTTP, JSON). - `tools/list` is open for discovery; tool calls use the same key + credit tier as REST. ## About - [About](https://api.canary2.idkyesidontknow.cyou/about) - [Privacy](https://api.canary2.idkyesidontknow.cyou/privacy) - [Terms](https://api.canary2.idkyesidontknow.cyou/terms)