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Boyce

io.github.boyce-io/boyce · v0.1.1

Deterministic SQL compiler for AI agents. Your agent stops guessing SQL.

Website Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add boyce -e BOYCE_DB_URL=<BOYCE_DB_URL> -e BOYCE_PROVIDER=<BOYCE_PROVIDER> -e ANTHROPIC_API_KEY=<ANTHROPIC_API_KEY> -- uvx boyce==0.1.1
claude_desktop_config.json
{
  "mcpServers": {
    "boyce": {
      "command": "uvx",
      "args": [
        "boyce==0.1.1"
      ],
      "env": {
        "BOYCE_DB_URL": "<BOYCE_DB_URL>",
        "BOYCE_PROVIDER": "<BOYCE_PROVIDER>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "boyce": {
      "command": "uvx",
      "args": [
        "boyce==0.1.1"
      ],
      "env": {
        "BOYCE_DB_URL": "<BOYCE_DB_URL>",
        "BOYCE_PROVIDER": "<BOYCE_PROVIDER>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "boyce": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "boyce==0.1.1"
      ],
      "env": {
        "BOYCE_DB_URL": "<BOYCE_DB_URL>",
        "BOYCE_PROVIDER": "<BOYCE_PROVIDER>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
BOYCE_DB_URL
Optional		PostgreSQL or Redshift connection string. Optional — tools work without live DB; required for live profiling and EXPLAIN pre-flight.
BOYCE_PROVIDER
Optional		LLM provider for the NL→StructuredFilter planner (anthropic, openai). MCP hosts using their own model should not set this — the host's model does the reasoning and Boyce receives a pre-built StructuredFilter.
ANTHROPIC_API_KEY
Optional		Required only when BOYCE_PROVIDER=anthropic and the host does not supply its own model. MCP hosts (Claude Desktop, Cursor, Claude Code, Codex, Cline, Windsurf, JetBrains) do not need this.

Details

Package[email protected] (PYPI, stdio)
First published22 Apr 2026
Last updated22 Apr 2026
Registry nameio.github.boyce-io/boyce

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