Reflex MCP Server
Local-first, full-text code search MCP server for AI coding agents. Indexes your codebase with trigram-based indexing for sub-100ms queries. Agents can search across 10k+ files, filter by language or symbol kind, and get structured JSON results — all offline, no API key required
Documentation
>>Reflex
Local-first code search engine with full-text search, symbol extraction, and dependency analysis for AI coding workflows.
$ npm install -g reflex-search
Read the Docs GitHub
Why Reflex
Sub-100ms Queries
Trigram indexing with memory-mapped I/O. 2–3ms on small codebases, under 250ms on the Linux kernel.
Complete Coverage
Finds every occurrence — not just definitions. Same query always produces the same results.
AI-Native
MCP server with 15 tools, JSON output for agent pipelines, built-in AI query assistant.
15 Languages
Rust, TypeScript, Python, Go, Java, C/C++, and more. Tree-sitter parsing for precise symbol extraction.
Dependency Analysis
Import tracking, reverse lookups, circular detection, hotspot analysis across your entire codebase.
Deterministic
Fully local, fully offline. No cloud, no non-determinism. Your code stays on your machine.
See it in action
Install
npm npm install -g reflex-search
cargo cargo install reflex-search