postgres-mcp-hardened MCP

A secure, read-only PostgreSQL MCP server written in Rust. It enforces read-only access by refusing writes at the parsed SQL level and using READ ONLY transactions. It includes hardened security features such as TLS pinning, column redaction to prevent equality oracles, and protection against SQL injection and resource exhaustion attacks.

Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by Eszetael

Vendor documentation

What you can do with it

Execute read-only SQL queries securely
Describe table schemas without exposing sensitive data
Audit database access with hardened security controls

Source and maintenance

Community listingRegistry 0.1.10

mcp-registry: io.github.Eszetael/postgres-mcp-hardened@0.1.10 Source repository Project website

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.

postgres-mcp-hardened 0.1.10

npmnpx

postgres-mcp-hardened package definition

{
  "version": "0.1.10",
  "transport": "stdio",
  "identifier": "postgres-mcp-hardened",
  "runtimeHint": "npx",
  "registryType": "npm",
  "runtimeArguments": [
    {
      "type": "positional",
      "value": "--stdio",
      "isRequired": true
    }
  ],
  "environmentVariables": [
    {
      "name": "DATABASE_URL",
      "isRequired": true,
      "description": "Connection string for the role the server connects as. Use a role that cannot write — the server refuses writes twice, but a read-only role is the layer that does not depend on us being correct. `--print-setup-sql` prints the SQL that creates one."
    },
    {
      "name": "MCP_STATEMENT_TIMEOUT",
      "description": "Server-side statement timeout, e.g. `5s`. A question that would pin the database is cancelled by PostgreSQL, not by hope."
    },
    {
      "name": "MCP_ALLOW_TABLES",
      "description": "Comma-separated allowlist. A table off the list is refused by name, and hiding it inside a CTE, a view or a join does not help."
    },
    {
      "name": "MCP_AUDIT_LOG",
      "description": "Path to the tamper-evident audit log. Entries are chained by hash and survive a restart; `--verify-audit` checks the chain against an off-host anchor."
    }
  ]
}

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.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "postgres-mcp-hardened-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "postgres-mcp-hardened@0.1.10"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "MCP_STATEMENT_TIMEOUT": "<YOUR_MCP_STATEMENT_TIMEOUT>",
        "MCP_ALLOW_TABLES": "<YOUR_MCP_ALLOW_TABLES>",
        "MCP_AUDIT_LOG": "<YOUR_MCP_AUDIT_LOG>"
      }
    }
  }
}

Cline

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

Cline configuration

{
  "mcpServers": {
    "postgres-mcp-hardened-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "postgres-mcp-hardened@0.1.10"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "MCP_STATEMENT_TIMEOUT": "<YOUR_MCP_STATEMENT_TIMEOUT>",
        "MCP_ALLOW_TABLES": "<YOUR_MCP_ALLOW_TABLES>",
        "MCP_AUDIT_LOG": "<YOUR_MCP_AUDIT_LOG>"
      }
    }
  }
}

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": {
    "postgres-mcp-hardened-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "postgres-mcp-hardened@0.1.10"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "MCP_STATEMENT_TIMEOUT": "<YOUR_MCP_STATEMENT_TIMEOUT>",
        "MCP_ALLOW_TABLES": "<YOUR_MCP_ALLOW_TABLES>",
        "MCP_AUDIT_LOG": "<YOUR_MCP_AUDIT_LOG>"
      }
    }
  }
}

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": {
    "postgres-mcp-hardened-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "postgres-mcp-hardened@0.1.10"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "MCP_STATEMENT_TIMEOUT": "<YOUR_MCP_STATEMENT_TIMEOUT>",
        "MCP_ALLOW_TABLES": "<YOUR_MCP_ALLOW_TABLES>",
        "MCP_AUDIT_LOG": "<YOUR_MCP_AUDIT_LOG>"
      }
    }
  }
}

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