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Documentation Index

Fetch the complete documentation index at: https://docs.3ngram.ai/llms.txt

Use this file to discover all available pages before exploring further.

Cursor reads MCP servers from ~/.cursor/mcp.json (global) or <workspace>/.cursor/mcp.json (per-project). There is no first-party cursor mcp add command yet — edit the JSON directly.

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Config

{
  "mcpServers": {
    "3ngram": {
      "url": "https://mcp.3ngram.ai/mcp",
      "transport": "streamable-http"
    }
  }
}
The transport field must be streamable-http (not stdio). If you already have other entries in mcpServers, just add "3ngram" as a sibling.

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Verify

  1. Save the config file.
  2. Open Cursor → Settings → Features → Model Context Protocol.
  3. The 3ngram server should appear in the list with a green dot. The first request triggers OAuth; complete the login in the browser tab Cursor opens.
If the server does not appear, restart Cursor — the editor only picks up mcp.json changes on launch. See client troubleshooting for the rest of the failure modes.