> For the complete documentation index, see [llms.txt](https://developers.coincircuit.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.coincircuit.io/introduction/mcp-integration.md).

# MCP Integration

## MCP Integration

CoinCircuit provides a **Model Context Protocol (MCP)** server for AI-powered IDEs.

Supported clients include:

* Cursor
* Windsurf
* Claude Desktop

### Endpoint

**MCP URL:** `https://mcp.coincircuit.io`

### Authentication

Generate an MCP access key in **Developer → MCP Access Keys**.

Then add it to your config:

```json
{
  "mcpServers": {
    "coincircuit": {
      "url": "https://mcp.coincircuit.io",
      "headers": {
        "x-mcp-key": "YOUR_MCP_KEY"
      }
    }
  }
}
```

The MCP server works without authentication for:

* Documentation browsing
* API schema discovery

Authentication is only required when tools execute actions like creating payments or listing transactions.


---

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