GitHub Code Search MCP Server
Enables searching GitHub code with filters and reading arbitrary file contents from any repository via MCP.
README
GitHub Code Search MCP Server
基于官方 MCP Python SDK 的 GitHub 代码搜索服务器，可通过任何 MCP 客户端（Claude Code、Claude Desktop 等）搜索全 GitHub 的代码并读取任意文件内容。
功能
| Tool | 说明 |
|---|---|
search_code |
全 GitHub 代码搜索：关键词 + 任意仓库/语言/文件名/路径过滤，返回文件路径和匹配源码片段 |
read_code |
读取任意仓库任意文件：支持分支/标签/commit 指定、按行范围读取（任意一行代码） |
快速开始（Docker Compose）
cp .env.example .env
# 编辑 .env，填入你的 GITHUB_TOKEN
docker compose up --build -d
# 验证
docker compose ps
curl http://localhost:8000/mcp # 应返回 MCP endpoint 信息
接入 AI 工具
MCP 服务器使用 Streamable HTTP 传输协议。任何支持 MCP 的客户端通过以下地址接入：
http://localhost:8000/mcp
示例（Claude Code）：
# 全局生效，所有项目可用
claude mcp add --scope user --transport http github-mcp http://localhost:8000/mcp
# 仅当前项目生效
claude mcp add --transport http github-mcp http://localhost:8000/mcp
可用工具
| 工具 | 用途 |
|---|---|
search_code(query, repo, language, filename, path, limit) |
全 GitHub 代码搜索，repo 限定 owner/name 仓库，返回文件路径与匹配源码片段 |
read_code(repo, path, ref, start_line, max_lines) |
读取任意仓库任意文件，ref 指定分支/commit，start_line/max_lines 定位任意行范围 |
环境变量
| 变量 | 必填 | 说明 |
|---|---|---|
GITHUB_TOKEN |
是 | GitHub 访问令牌（只需只读权限），code search API 必须认证 |
HOST |
否 | 监听地址，默认 0.0.0.0 |
PORT |
否 | 监听端口，默认 8000 |
HTTPS_PROXY / NO_PROXY |
否 | 代理。由 compose 启动时从宿主 shell 环境自动透传（${HTTPS_PROXY:-}），无需在 .env 配置 |
本地运行（非 Docker）
python3 -m venv .venv
.venv/bin/pip install -r requirements.txt
GITHUB_TOKEN=<你的 GitHub token> .venv/bin/python server.py
说明
- GitHub code search 只索引仓库的默认分支
- 读取大文件（>1 MiB）时自动回退到
raw.githubusercontent.com - 无
GITHUB_TOKEN时搜索会返回 401 错误提示
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