Cursor

Cursor speaks MCP natively. Point it at the ToolCairn server, run the auth flow once, and every agent chat in Cursor can call get_stack, check_compatibility, and the other 12 tools.

Step 1 — Add the MCP config

Edit Cursor's MCP settings file at ~/.cursor/mcp.json (or the Cursor → Settings → MCP panel):

{
  "mcpServers": {
    "toolcairn": {
      "command": "npx",
      "args": ["-y", "@neurynae/toolcairn-mcp"]
    }
  }
}

Step 2 — Sign in

In a Cursor chat, ask "Run toolcairn_auth and log me in." The agent calls the tool, opens your browser to toolcairn.neurynae.com/device, and stores credentials at ~/.toolcairn/credentials.json. Restart Cursor after sign-in; all 14 tools become available.

Step 3 — Try it

From a Cursor chat: "Give me a TypeScript serverless stack for a billing-aware SaaS." The agent routes through get_stack and returns picks with resolved versions.

Learn more

• Full MCP Tools reference
• Device auth flow internals