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How to add the ZeroWidth Ledger MCP server to Cursor

Server URL: https://api.zerowidth.ai/mcp/x/ledger
Sign-in: No sign-in. Paste the URL and it connects.
Our hands-on result: Partial 6 of 7 tasks passed, tested Oct 18, 2026 with MCP TypeScript SDK (reference client).

Cursor setup

File: ~/.cursor/mcp.json (or .cursor/mcp.json in a project)

{
  "mcpServers": {
    "ai-zerowidth-ledger": {
      "url": "https://api.zerowidth.ai/mcp/x/ledger"
    }
  }
}
  1. Save the file. The server shows a green dot in Cursor Settings, then MCP.

We ran the hands-on test in a reference client, not in Cursor. This config follows Cursor's documented format for remote (Streamable HTTP) servers. If it fails for you, tell us and we will retest.

Same server, other clients

Full ZeroWidth Ledger test report | Compare all tested connectors | Connector Weather