Building a Zero-Dependency Python MCP Server for Local AI File Access
By
Emmimal P Alexander
Pulled from the oven just right. Trustworthy, fact-dense, deeply satisfying.
Summary
A developer describes building a lightweight, zero-dependency MCP (Model Context Protocol) server in pure Python to solve the pain point of manually copying files into AI chat tools for code feedback. The server runs over stdio for local use and switches to HTTP/SSE for concurrent clients with a single flag, achieving sub-50ms response times with 5 concurrent clients. The design prioritizes simplicity and minimal dependencies while still delivering robust functionality for AI-assisted development workflows.
Key quotes
· 3 pulledSix files. Eleven pastes. Twenty minutes of switching before I wrote a single new line.
A server runs locally, exposes tool
5 clients, under 50ms, and a design that stays simple without sacrificing capability.
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