grepai

grep for the AI era

Search code by meaning, not just text.

Documentation · Installation · Quick Start

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grepai is a privacy-first CLI for semantic code search. It uses vector embeddings to understand code meaning, enabling natural language queries that find relevant code—even when naming conventions vary.

Drastically reduces AI agent input tokens by providing relevant context instead of raw search results.

Features

Search by intent — Ask "authentication logic" and find handleUserSession
Trace call graphs — Know who calls a function before you change it
100% local — Your code never leaves your machine
Always up-to-date — File watcher keeps the index fresh automatically
AI agent ready — Works with Claude Code, Cursor, Windsurf out of the box
MCP server — Your AI agent can call grepai directly as a tool

Installation

Homebrew (macOS):

brew install yoanbernabeu/tap/grepai

Linux/macOS:

curl -sSL https://raw.githubusercontent.com/yoanbernabeu/grepai/main/install.sh | sh

Windows (PowerShell):

irm https://raw.githubusercontent.com/yoanbernabeu/grepai/main/install.ps1 | iex

Requires an embedding provider — Ollama (default), LM Studio, or OpenAI.

Ollama (recommended):

ollama pull nomic-embed-text

Quick Start

grepai init                        # Initialize in your project
grepai watch                       # Start indexing daemon
grepai search "error handling"     # Search semantically
grepai trace callers "Login"       # Find who calls a function

Shell Completion

grepai supports autocompletion for commands, flags, and dynamic values (workspace names, project names, providers, backends).

Zsh (add to ~/.zshrc):

eval "$(grepai completion zsh)"

Oh-My-Zsh plugin:

mkdir -p ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/grepai
grepai completion zsh > ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/grepai/_grepai
# Then add "grepai" to plugins=(...) in ~/.zshrc

Bash:

# Linux
grepai completion bash > /etc/bash_completion.d/grepai

# macOS (requires bash-completion@2)
grepai completion bash > $(brew --prefix)/etc/bash_completion.d/grepai

Fish:

grepai completion fish > ~/.config/fish/completions/grepai.fish

PowerShell:

grepai completion powershell | Out-String | Invoke-Expression

What developers say

"I just hit my limit and it took 13% of my max5 plan just to read my codebase. I am very, very excited about your new tool." — u/911pleasehold on r/ClaudeAI (280K+ views)

"It works great! Takes 5 minutes to install. Crazy!" — @LesSaleGeek on X

"The results are incredible!" — Kenny Nguyen on LinkedIn

Why grepai?

grep was built in 1973 for exact text matching. Modern codebases need semantic understanding.

| | grep / ripgrep | grepai | |---|---|---| | Search | Exact text / regex | Semantic understanding | | Query | "func.*Login" | "user authentication flow" | | Finds | Pattern matches | Conceptually related code |

Documentation

Full docs, guides, and blog:

Documentation — Configuration, AI agents, MCP setup
Blog — Benchmarks, tutorials, release notes

Contributing

See CONTRIBUTING.md for guidelines.

License

MIT License - Yoan Bernabeu 2026

Grepai

Install / Use

README