Postgres MCP Server
Read-only Postgres MCP server — let an LLM query your database with full schema awareness.
Postgres MCP Server — Read-only Postgres MCP server — let an LLM query your database with full schema awareness. Provides read-only access to PostgreSQL databases, preventing unintended data modification or deletion.
About Postgres MCP Server
Postgres MCP Server is an MCP server that lets an LLM query a PostgreSQL database with full schema awareness, using the Model Context Protocol to connect to MCP-compatible clients.
Its distinguishing trait is a read-only design: data cannot be inserted, updated, or deleted through the server, so an agent can explore your database without risk of unintended changes. Because it exposes the full schema, the model can generate queries that reflect your actual tables and columns.
It fits developers who want an agent to read from Postgres locally and free of charge on macOS, Windows, or Linux. It is not for anyone who needs write access, another database engine, or a hosted setup — it is Postgres-only and requires self-hosting plus manual connection configuration.
Among MCP database connectors, this is the narrow, read-only Postgres option rather than a multi-engine or read-write tool.
Sources: this listing
Postgres MCP Server pros and cons
Pros
- Provides read-only access to PostgreSQL databases, preventing unintended data modification or deletion.
- Exposes full database schema awareness so LLMs can generate accurate, context-aware queries.
- Implements the Model Context Protocol for standardized tool integration with MCP-compatible LLM clients.
- Free to use and runs locally across macOS, Windows, and Linux platforms.
Cons
- Read-only design means data cannot be inserted, updated, or deleted through the server.
- Limited to PostgreSQL and does not support other database engines.
- Requires self-hosting and manual configuration of database connection details.
Tagged
- Self-hostable
- Supports Claude
- CLI
- MCP Support
- Free
- Open Source
Postgres MCP Server alternatives
More from MCP Servers.
- 01Free →Slack MCP Server
Reference MCP server for Slack — read channels, post messages, and manage threads from an agent.
- 02Free →Sequential Thinking MCP Server
Tool that lets an LLM work through problems step by step with explicit reasoning state.
- 03Free →Memory MCP Server
Persistent knowledge-graph memory for LLM clients — store, recall, and link facts across sessions.
- 04Free →Brave Search MCP Server
Web search MCP server backed by the Brave Search API — privacy-respecting and independent index.
- 05Free →Fetch MCP Server
Reference server that fetches and converts web pages into clean markdown for LLM consumption.
- 06Free →GitHub MCP Server
Official GitHub MCP server — issues, PRs, repos, and code search through Claude or any MCP client.
Related reading
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</a>Frequently asked questions
- What is Postgres MCP Server?
- Postgres MCP Server — Read-only Postgres MCP server — let an LLM query your database with full schema awareness.
- Is Postgres MCP Server free?
- Postgres MCP Server is free to use. There is no paid tier as of the last index update.
- What platforms does Postgres MCP Server support?
- Postgres MCP Server runs on mac, win, linux, cli.
- What are the alternatives to Postgres MCP Server?
- Similar tools in MCP Servers on vibedonalds: Slack MCP Server, Sequential Thinking MCP Server, Memory MCP Server, Brave Search MCP Server.
- What are the downsides of Postgres MCP Server?
- Read-only design means data cannot be inserted, updated, or deleted through the server. Limited to PostgreSQL and does not support other database engines. Requires self-hosting and manual configuration of database connection details.