超高速索引代码搜索引擎，配备 MCP 服务器，用于 AI 编码工具。

预先构建倒索引的三元组，然后在毫秒级内搜索。设计用于在大型代码库上反复搜索——无论是人类还是人工智能代理。

特色

• 索引搜索 — 三元组倒索引使重复搜索速度比ripgrep快2倍到46倍
• 文件发现 — --find 模式定位文件的速度是 FD 的 2-15 倍
• MCP 服务器 — 内置的模型上下文协议服务器，用于 AI 编码工具（Claude Code、Cursor 等）
• LLM 优化输出 — --format llm 生成带有语言标签、上下文行和标记识别截断的 Markdown
• Git-aware — 仅搜索已更改文件（[--changed）、最近提交（--since 1h）、尊重.gitignore
• 零配置 — 通过 cargo/npm/pip 安装，然后 xg "pattern"。索引在首次搜索时自动构建
• 始终新鲜 — 自上次索引构建以来编辑的文件在每次搜索中都会重新扫描;在Linux上，xg serve会监控树，因此此检查耗费~0.1毫秒

xgrep

Ultra-fast indexed code search engine with MCP server for AI coding tools.

Pre-builds a trigram inverted index, then searches in milliseconds. Designed for repeated searches on large codebases — by humans and AI agents alike.

Features

• Indexed search — trigram inverted index makes repeated searches 2-46x faster than ripgrep
• File discovery — --find mode locates files 2-15x faster than fd
• MCP server — built-in Model Context Protocol server for AI coding tools (Claude Code, Cursor, etc.)
• LLM-optimized output — --format llm produces Markdown with language tags, context lines, and token-aware truncation
• Git-aware — search only changed files (--changed), recent commits (--since 1h), respects .gitignore
• Zero config — install via cargo/npm/pip, then xg "pattern". Index builds automatically on first search
• Always fresh — files edited since the last index build are rescanned on every search; on Linux, xg serve watches the tree so this check costs ~0.1ms
• Syntax-aware — tree-sitter outlines (--outline), enclosing-block results (--expand block), definitions, references and a repo map for Rust, Python, JS/TS, Go, Java, C/C++ and Ruby
• Boolean and history search — file-level --and / --not, search inside git diff (--in-diff) or commit messages (--log)

Why xgrep?

xgrep is not a ripgrep replacement. Use ripgrep for one-off searches. Use xgrep when you search the same codebase repeatedly — the index pays for itself after ~2 searches.

Installation

Choose your package manager:

# Rust (recommended — native binary, no runtime)
cargo install xgrep-search    # Requires Rust 1.85+

# npm (Node.js 18+)
npm install -g xgrep

# pip (Python 3.8+)
pip install xgrep-search

Prebuilt binaries are also available on the Releases page.