A lightweight MCP (Model Context Protocol) server built to query Postgres database using SQL or plain English commands. It provides comprehensive tools for database operations, table introspection…
Postgres Mcp is an MCP project maintained in the freakynit/postgres-mcp repository. The maintainer describes its purpose as “A lightweight MCP (Model Context Protocol) server built to query Postgres database using SQL or plain English commands. It provides comprehensive tools for database operations…”. Read the project documentation for the complete scope.
The documented npm package is @freakynit/postgres-mcp. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
The example declares POSTGRES_HOST, POSTGRES_USER, POSTGRES_PASSWORD, POSTGRES_DATABASE. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| execute_raw_query | Execute SQL queries with permission validation and dry-run support |
| list_tables | List all non-system tables |
| describe_tables | Get comprehensive table information including columns, indexes, triggers, and constraints |
| switch_database | Switch the active database connection |
{
"mcpServers": {
"postgres-mcp": {
"command": "npx",
"args": [
"-y",
"@freakynit/postgres-mcp@latest"
],
"env": {
"POSTGRES_HOST": "<POSTGRES HOST>",
"POSTGRES_USER": "<POSTGRES USER>",
"POSTGRES_PASSWORD": "YOUR_POSTGRES_PASSWORD",
"POSTGRES_DATABASE": "<POSTGRES DATABASE>"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| POSTGRES_HOST | Declared in the maintainer’s client configuration. | Check documentation |
| POSTGRES_USER | Declared in the maintainer’s client configuration. | Check documentation |
| POSTGRES_PASSWORD | Declared in the maintainer’s client configuration. | Check documentation |
| POSTGRES_DATABASE | Declared in the maintainer’s client configuration. | Check documentation |
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