> ## Documentation Index
> Fetch the complete documentation index at: https://sendmux.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# GitHub Copilot coding agent MCP setup

> Configure Sendmux MCP in GitHub Copilot coding agent.

Use this page to connect Sendmux MCP to your AI client.

## Private HTTP

Start a local HTTP MCP server:

```bash theme={null}
SENDMUX_API_KEY=smx_mbx_... \
SENDMUX_MCP_HTTP_BEARER_TOKEN=local-mcp-token \
sendmux-mcp-mailbox --transport http --host 127.0.0.1 --port 8765
```

Use `http://127.0.0.1:8765/mcp` as the client URL.

Use repository-level MCP settings with a private HTTPS endpoint that the cloud agent can reach. Store the bearer token as an Agents secret or variable whose name starts with `COPILOT_MCP_`.

```json theme={null}
{
  "mcpServers": {
    "sendmux": {
      "type": "http",
      "url": "https://your-private-mcp.example.com/mcp",
      "headers": {
        "Authorization": "Bearer $COPILOT_MCP_SENDMUX_MCP_TOKEN"
      },
      "tools": ["*"]
    }
  }
}
```

GitHub Copilot coding agent does not support remote MCP servers that require OAuth. Do not point it at the hosted Sendmux OAuth endpoint.