PgVouch MCP

PgVouch is an MCP server and CLI tool designed for safe PostgreSQL migrations. It enables AI assistants to perform read-only schema drift detection, lock analysis, safe rewrites, and data checksum verification. By wrapping AI suggestions in deterministic checks, it helps prevent outages caused by schema changes and ensures data integrity during migrations.

Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by Shubh-Sgr

Vendor documentation

What you can do with it

Detect schema drift between environments
Analyze table locks before migration
Verify data integrity via checksums
Plan safe database rewrites

Source and maintenance

Community listingRegistry 0.4.4

mcp-registry: io.github.Shubh-Sgr/pgvouch@0.4.4 Source repository

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

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

pgvouch 0.4.4

npm

pgvouch package definition

{
  "version": "0.4.4",
  "transport": "stdio",
  "identifier": "pgvouch",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ],
  "environmentVariables": [
    {
      "name": "SOURCE_DATABASE_URL",
      "isRequired": true,
      "description": "Read-only postgres:// URL of the reference database"
    },
    {
      "name": "TARGET_DATABASE_URL",
      "isRequired": true,
      "description": "Read-only postgres:// URL of the database to check"
    },
    {
      "name": "PGVOUCH_LLM",
      "default": "none",
      "description": "Optional planner LLM: none (default), ollama or gemini"
    }
  ]
}

Tools

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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": {
    "pgvouch-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "pgvouch@0.4.4",
        "mcp"
      ],
      "env": {
        "SOURCE_DATABASE_URL": "<YOUR_SOURCE_DATABASE_URL>",
        "TARGET_DATABASE_URL": "<YOUR_TARGET_DATABASE_URL>",
        "PGVOUCH_LLM": "<YOUR_PGVOUCH_LLM>"
      }
    }
  }
}

Cline

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

Cline configuration

{
  "mcpServers": {
    "pgvouch-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "pgvouch@0.4.4",
        "mcp"
      ],
      "env": {
        "SOURCE_DATABASE_URL": "<YOUR_SOURCE_DATABASE_URL>",
        "TARGET_DATABASE_URL": "<YOUR_TARGET_DATABASE_URL>",
        "PGVOUCH_LLM": "<YOUR_PGVOUCH_LLM>"
      }
    }
  }
}

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": {
    "pgvouch-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "pgvouch@0.4.4",
        "mcp"
      ],
      "env": {
        "SOURCE_DATABASE_URL": "<YOUR_SOURCE_DATABASE_URL>",
        "TARGET_DATABASE_URL": "<YOUR_TARGET_DATABASE_URL>",
        "PGVOUCH_LLM": "<YOUR_PGVOUCH_LLM>"
      }
    }
  }
}

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": {
    "pgvouch-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "pgvouch@0.4.4",
        "mcp"
      ],
      "env": {
        "SOURCE_DATABASE_URL": "<YOUR_SOURCE_DATABASE_URL>",
        "TARGET_DATABASE_URL": "<YOUR_TARGET_DATABASE_URL>",
        "PGVOUCH_LLM": "<YOUR_PGVOUCH_LLM>"
      }
    }
  }
}

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