Cursor

Cursor supports remote MCP servers through its Settings UI or an mcp.json config file.

Locate the config file

For project-scoped config, use .cursor/mcp.json at the repo root.

Add the MCP server

Option A — Settings UI: open Cursor Settings (Cmd/Ctrl + Shift + J) → Tools & Integrations (shown as Tools on the Free plan). Under MCP Tools, click Add Custom MCP and add the entry below.

Option B — edit the file directly:

{
  "mcpServers": {
    "part3": {
      "url": "https://mcp.part3.io"
    }
  }
}

No header, no secret — Cursor discovers Part3's OAuth endpoints automatically from the URL.

Sign in (OAuth)

After saving, part3 appears in the MCP Tools panel with a Needs login button. Click it to open a browser, sign in, and approve access. Cursor stores the credentials for you.

Verify

In Settings → Tools & Integrations → MCP Tools, part3 should be listed with its tools (each individually toggleable). If something's wrong, open the Output panel (Cmd/Ctrl + Shift + U) and select MCP Logs.

Troubleshooting

See the Claude Code troubleshooting section — the causes and fixes apply to Cursor as well.