Requires the runtime declared in the upstream repo — check the README before running. Claude Code persists MCP servers via its CLI — no config file to edit, just run the command below once. Paste the config below, then follow the reload step to register TheRaLabs/legion-mcp.
Run the command below in your terminal — Claude Code persists it for you.claude mcp add database-mcp --env DB_CONFIGS=[{"id":"pg_main","db_type":"pg","configuration":{"host":"localhost","port":5432,"user":"user","password":"pw","dbname":"postgres"},"description":"PostgreSQL Database"},{"id":"mysql_data","db_type":"mysql","configuration":{"host":"localhost","port":3306,"user":"root","password":"pass","database":"mysql"},"description":"MySQL Database"}] -- uvx database-mcp