Developer Tools●●Solid
Pglens – Postgres MCP server that lets agents look before they query
Postgres MCP server that lets agents inspect column values before writing queries.
Niche GemSolve My Problem
jeeybee
302mo ago
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14 starsPython
Pglens – 27 read-only PostgreSQL tools for AI agents via MCP
by jeeybee·Mar 29, 2026·13 points·7 comments
AI Analysis
●●SolidSolve My ProblemNiche Gem
Stops AI hallucination with `column_values` and `find_join_path` instead of generic query tools.
Strengths
- •`find_join_path` automates relationship discovery so agents don't guess foreign keys manually.
- •`column_values` returns distinct values so agents stop hallucinating enum states incorrectly.
- •Read-only safety caps prevent agents from accidentally dropping tables during exploration.
Weaknesses
- •Only supports PostgreSQL, excluding MySQL and SQLite users building similar workflows.
- •Early repo with only six commits and minimal documentation beyond the README.
Category
Target Audience
Developers building AI agents that interact with PostgreSQL databases
Similar To
LangChain · Vanna AI · Defog AI
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