Gulliver

Test on tiny data before you run on giant data. MCP server + CLI that gives AI agents a dress rehearsal for SQL: cost preflight, scale lint with auto-fix, rehearse on 1% → 10%, predict 100%, run only within budget. DuckDB, Postgres, BigQuery, Snowflake. Local-first, MIT.

Installation

MCP client config (paste into mcp.json)

{
  "mcpServers": {
    "gulliver": {
      "command": "npx",
      "args": [
        "gulliver-mcp"
      ]
    }
  }
}

Agent install prompt

Copy and paste into Cursor / Claude / other agents to install this MCP for you

Please read this MCP repository and install it into my current environment:
https://github.com/laaielichter/Gulliver

Known working client config (can write into mcp.json):
{
  "mcpServers": {
    "gulliver": {
      "command": "npx",
      "args": [
        "gulliver-mcp"
      ]
    }
  }
}

Please: 1) check README for deps and env vars; 2) write config for my client; 3) if secrets are missing, tell me what to fill — do not invent values.

GitHub

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