SchemaBrain MCP

SchemaBrain is a trust and intelligence layer between AI agents and your database. It provides read-only, PII-aware, and audit-evident access to Postgres via 12 Pydantic-typed MCP tools, ensuring agents cannot write data and that sensitive information is refused before queries run.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by Arun-kc

Vendor documentation

What you can do with it

Initialize local Postgres demo with schema graph
Refuse unsafe queries touching blocked PII categories
Verify tamper-evident audit chain integrity
Describe table structures and column relationships

Source and maintenance

Community listingRegistry 0.6.0

mcp-registry: io.github.Arun-kc/schemabrain@0.6.0 Source repository Project website

Maintenance checked: Nov 1, 2026, 6:06 AM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

schemabrain 0.6.0

pypiuvx

schemabrain package definition

{
  "version": "0.6.0",
  "transport": "stdio",
  "identifier": "schemabrain",
  "runtimeHint": "uvx",
  "registryType": "pypi",
  "registryBaseUrl": "https://pypi.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "serve",
      "valueHint": "subcommand"
    },
    {
      "name": "--url-env",
      "type": "named",
      "value": "DATABASE_URL"
    },
    {
      "name": "--store-path",
      "type": "named",
      "value": "{store_path}",
      "variables": {
        "store_path": {
          "format": "filepath",
          "default": "./schemabrain.db",
          "isRequired": true,
          "description": "Absolute path to the schemabrain SQLite store created by `schemabrain index`. Defaults to ./schemabrain.db."
        }
      }
    }
  ],
  "environmentVariables": [
    {
      "name": "DATABASE_URL",
      "format": "string",
      "isRequired": true,
      "description": "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."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "schemabrain-mcp": {
      "command": "uvx",
      "args": [
        "schemabrain==0.6.0",
        "serve",
        "--url-env=DATABASE_URL",
        "--store-path={store_path}"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "schemabrain-mcp": {
      "command": "uvx",
      "args": [
        "schemabrain==0.6.0",
        "serve",
        "--url-env=DATABASE_URL",
        "--store-path={store_path}"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "schemabrain-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "schemabrain==0.6.0",
        "serve",
        "--url-env=DATABASE_URL",
        "--store-path={store_path}"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "schemabrain-mcp": {
      "command": "uvx",
      "args": [
        "schemabrain==0.6.0",
        "serve",
        "--url-env=DATABASE_URL",
        "--store-path={store_path}"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>"
      }
    }
  }
}

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