Legion

@TheRaLabs · github.com/TheRaLabs/legion-mcp

Universal database MCP server supporting multiple database types including PostgreSQL, Redshift, CockroachDB, MySQL, RDS MySQL, Microsoft SQL Server, BigQuery, Oracle DB, and SQLite.

ClaimedData & Databasesstdiolocal auth

GitHub

Install one command

terminal

$ pip install database-mcp

Or add it with the Claude CLI: claude mcp add theralabs-legion-mcp

Tools exposed 11 tools

execute_query

execute_query_json

get_table_columns

get_table_types

get_query_history

list_databases

get_database_info

find_table

describe_table

get_table_sample

db_id

Configuration claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "theralabs-legion-mcp": {
      "command": "pip",
      "args": ["install", "database-mcp"],
      "env": {
        "DB_CONFIG": "<your-db-config>",
        "DB_CONFIGS": "<your-db-configs>",
        "DB_TYPE": "<your-db-type>"
      }
    }
  }
}

Paste under mcpServers in your config, then restart Claude Desktop. For Claude Code, reference this server in your project's CLAUDE.md.

Legion

Install one command

Tools exposed 11 tools

Configuration claude_desktop_config.json

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