The Best MCP Servers for Daily Development Work (And What to Check Before Installing)

The MCP ecosystem has hundreds of servers. Most aren't worth installing. Here are the ones that are genuinely useful for daily development work -- and what to check before you add them to your environment. Before Installing Any MCP Server Every MCP server runs code on your machine with Claude's trust level. Before installing: Check the source code -- specifically look for shell=True in Python, exec in JS Look at what env vars it reads Check outbound HTTP calls -- where does it send data? Run npm audit or pip-audit on the dependencies Quick automated check covering 22 vulnerability patterns: MCP Security Scanner Pro ($29) With that said, here are the servers I actually use. 1. Filesystem MCP (Built-in) Claude Code includes filesystem access by default. Before installing a third-party filesystem server, ask if the built-in handles your use case. Third-party filesystem servers are worth considering only if you need: Explicit audit logging of every file access Enforced path restrictions be