SchemaBrain MCP Server

by arun-kcio.github.Arun-kc/schemabrainv0.6.0

Read-only Postgres access with SQL compiled from your own definitions, PII refusal and a tamper-evident audit chain.

11Pythonstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Slowing4mo ago

Install SchemaBrain MCP server

claude mcp add schemabrain -e DATABASE_URL='<database-url>' -- uvx schemabrain serve --url-env DATABASE_URL --store-path '{store_path}'

{
  "mcpServers": {
    "schemabrain": {
      "command": "uvx",
      "args": [
        "schemabrain",
        "serve",
        "--url-env",
        "DATABASE_URL",
        "--store-path",
        "{store_path}"
      ],
      "env": {
        "DATABASE_URL": "<database-url>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "schemabrain": {
      "command": "uvx",
      "args": [
        "schemabrain",
        "serve",
        "--url-env",
        "DATABASE_URL",
        "--store-path",
        "{store_path}"
      ],
      "env": {
        "DATABASE_URL": "<database-url>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "schemabrain": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "schemabrain",
        "serve",
        "--url-env",
        "DATABASE_URL",
        "--store-path",
        "{store_path}"
      ],
      "env": {
        "DATABASE_URL": "<database-url>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "schemabrain": {
      "command": "uvx",
      "args": [
        "schemabrain",
        "serve",
        "--url-env",
        "DATABASE_URL",
        "--store-path",
        "{store_path}"
      ],
      "env": {
        "DATABASE_URL": "<database-url>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
DATABASE_URL	yes	yes	Postgres connection URL (postgresql+psycopg://USER:PASSWORD@HOST:PORT/DBNAME). The agent never sees this; the URL stays in the env so credentials never appear in argv or logs.

Freshness

Slowing — last maintenance signal 4mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-06-21 · 4mo ago · GitHub
Latest release
2026-06-13 · 4mo ago · GitHub · v0.6.0
Package published
no data · npm/PyPI
Registry entry updated
2026-06-13 · 4mo ago · official registry · v0.6.0

FAQ

›How do I install the SchemaBrain MCP server in Claude Code?

Run: claude mcp add schemabrain -e DATABASE_URL='<database-url>' -- uvx schemabrain serve --url-env DATABASE_URL --store-path '{store_path}'. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does SchemaBrain require an API key?

Yes. It expects DATABASE_URL, of which 1 is a secret.

›Can I use SchemaBrain as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is SchemaBrain in the official MCP registry?

Yes, as io.github.Arun-kc/schemabrain.