MCP Server Catalog Reference

Skill by ara.so — MCP Skills collection.

What This Project Does

The 50-essential-mcp-servers catalog is a curated reference guide for MCP (Model Context Protocol) servers that work with Claude Code, Gemini CLI, and Codex. It provides:

• 50 vetted MCP servers organized into 9 categories (core dev, databases, ops/infra, productivity, fintech, web3, trading, creator tools, reasoning)
• Install commands for each agent (Claude Code, Codex, Gemini)
• Safety flags for servers that handle money, production data, or irreversible actions
• Practical selection advice to avoid tool bloat and performance degradation

The Three Critical Rules

Before recommending ANY MCP server, enforce these rules: