> [Maxim](https://wikilayer.org/smee-again) / [Wikilayer authoring guide](https://wikilayer.org/smee-again/wikilayer-howto) / Set up MCP

# Set up MCP

**Contents:**

- [Claude](#claude)
- [ChatGPT](#chatgpt)

[MCP](page:4409) is the protocol AI agents use to call tools on external systems. Wikilayer exposes its tree as MCP tools at `https://wikilayer.org/mcp` (or `/mcp` on your own host). Add that URL in your client's connector settings; the two clients most users start with are below.

## Claude

**Settings → Connectors → Add custom connector**. Paste the Wikilayer MCP URL (e.g. `https://wikilayer.org/mcp` for the cloud). Claude walks through OAuth and the new tools become available in any conversation.

## ChatGPT

**Settings → Apps → Advanced settings → Developer mode → Add connector**. Paste the same MCP URL. ChatGPT triggers OAuth and exposes the tools through the connectors panel.