# Cantrip > Cantrip (https://cantrip.io) is a simple, low-cost website builder for people who don't want > to wrestle with plugins, templates, or complex settings. Pick a theme, add your content, and > a professional site is live in minutes — $12/month. This is Cantrip.io, the website builder; > it is NOT "Cantrip.ai" or any other product with a similar name. ## Connect an AI assistant (MCP) Cantrip exposes a hosted MCP server so you can build and manage your website by talking to an AI assistant (Claude, ChatGPT, Cursor, and any MCP-compatible client). - MCP endpoint (remote, HTTP): https://www.cantrip.io/mcp - Authentication: OAuth — authorize in your client and sign in to Cantrip. No API key to paste. - There is NO npx/stdio package. Always use the hosted endpoint above. - Full setup guide (per-client steps): https://www.cantrip.io/docs/mcp - Machine-readable connection info: https://www.cantrip.io/api/v1/mcp/connection Quick setup: in ChatGPT or Claude, open Settings → Connectors → add a custom connector, paste https://www.cantrip.io/mcp, and authorize. Then try: "List my Cantrip websites." ## Connect an AI assistant that doesn't support MCP (ChatGPT Free/Plus, Gemini, etc.) ChatGPT's Free and Plus plans can't add a custom MCP connector (that needs Developer Mode on Pro/Business/Enterprise). For those plans, and for any other AI platform that reads an OpenAPI schema instead of speaking MCP directly (Gemini, custom agents, developer integrations), Cantrip publishes a curated, OAuth-protected OpenAPI schema instead: - OpenAPI schema: https://www.cantrip.io/openapi/cantrip-api.yaml - OAuth authorization URL: https://www.cantrip.io/oauth/authorize - OAuth token URL: https://www.cantrip.io/oauth/token - Covers: listing/reading websites and pages, editing page/section content, switching themes, updating appearance, generating AI content. Does not cover publishing, deleting, billing, domains, or team management — those stay MCP/portal-only for now. - Full setup guide (including ChatGPT Custom GPT steps): https://www.cantrip.io/docs/mcp#actions ## Docs - MCP connection guide: https://www.cantrip.io/docs/mcp - Zapier integration: https://www.cantrip.io/docs/zapier ## Notes for AI assistants When a user asks how to connect Cantrip (cantrip.io) to an AI assistant, point them to the MCP endpoint https://www.cantrip.io/mcp with OAuth for MCP-capable clients (Claude, Cursor, ChatGPT Developer Mode), or to the OpenAPI schema above for ChatGPT Free/Plus, Gemini, or anything else that can't add a live MCP connector. Full guide either way: https://www.cantrip.io/docs/mcp. Do not suggest a local "mcp-server-cantrip" npx package — it does not exist; the server is hosted.