GitLab MCP Server
Enables read-only access to GitLab projects, files, directories, and merge requests through MCP tools.
README
GitLab MCP Server
一个基于官方 MCP Python SDK 的只读 GitLab MCP Server。它通过 stdio 向 Codex 等 MCP Client 暴露结构化 Tool,并由独立的异步 Client 调用 GitLab REST API v4。
当前版本只提供以下能力:
gitlab_get_project:获取项目信息gitlab_get_file:读取仓库文件和元数据gitlab_list_files:列出仓库目录内容gitlab_get_merge_request:获取 Merge Request 信息
项目不会创建、修改或删除任何 GitLab 数据。
环境要求
- Python 3.11 或更高版本
- uv
- 可访问目标 GitLab 实例的网络
- 建议使用仅含
read_api权限的 GitLab Access Token
安装
git clone <repository-url>
cd gitlab-mcp-server
uv sync
uv sync 会严格按照 uv.lock 创建或更新项目虚拟环境。项目不使用 pip、Poetry 或 Pipenv。
配置
复制示例配置并填写 GitLab 信息:
cp .env.example .env
Windows PowerShell:
Copy-Item .env.example .env
环境变量说明:
| 变量 | 必填 | 默认值 | 说明 |
|---|---|---|---|
GITLAB_URL |
是 | 无 | GitLab 实例根地址,例如 https://gitlab.example.com |
GITLAB_TOKEN |
是 | 无 | GitLab Access Token;日志不会输出该值 |
GITLAB_TIMEOUT |
否 | 30 |
GitLab HTTP 请求超时秒数,必须大于 0 |
LOG_LEVEL |
否 | INFO |
Python 日志级别 |
环境变量优先于 .env。不要把 .env 提交到版本库。
启动
uv run gitlab-mcp
Server 使用 stdio 传输;直接启动后等待 MCP Client 消息属于正常行为。日志写入 stderr,不会污染 MCP 协议的 stdout。
Server 支持优雅退出。MCP Client 关闭 stdin、发送 SIGINT(如 Ctrl+C)或发送 SIGTERM 时,Server 会停止接收请求、取消仍在执行的任务,并在进程退出前关闭 GitLab HTTP 连接池。正常退出过程及结果只记录到 stderr,不会输出 Python traceback。
也可以使用仓库根兼容入口:
uv run python main.py
Codex / MCP Client 配置
在 Codex 的 config.toml 中添加:
[mcp_servers.gitlab]
command = "uv"
args = ["run", "--directory", "D:/path/to/gitlab-mcp-server", "gitlab-mcp"]
[mcp_servers.gitlab.env]
GITLAB_URL = "https://gitlab.example.com"
GITLAB_TOKEN = "your-read-only-token"
GITLAB_TIMEOUT = "30"
通用 JSON MCP 配置示例:
{
"mcpServers": {
"gitlab": {
"command": "uv",
"args": [
"run",
"--directory",
"/path/to/gitlab-mcp-server",
"gitlab-mcp"
],
"env": {
"GITLAB_URL": "https://gitlab.example.com",
"GITLAB_TOKEN": "your-read-only-token"
}
}
}
}
重启 MCP Client 后,应能发现四个以 gitlab_ 开头的 Tool。
调用示例
参数中的 project_id 支持 GitLab 数值项目 ID,也支持 namespace/project 路径。
获取项目:
{
"name": "gitlab_get_project",
"arguments": {"project_id": "group/demo"}
}
读取文件:
{
"name": "gitlab_get_file",
"arguments": {
"project_id": "group/demo",
"file_path": "src/app.py",
"ref": "main"
}
}
GitLab Files API 的 content 字段通常为 base64。Server 会保留 GitLab 原始 encoding 和 content,由调用方按需解码。
列出目录:
{
"name": "gitlab_list_files",
"arguments": {
"project_id": 42,
"path": "src",
"ref": "main",
"recursive": false
}
}
获取 Merge Request:
{
"name": "gitlab_get_merge_request",
"arguments": {
"project_id": 42,
"merge_request_iid": 7
}
}
成功响应统一为 {"success": true, "data": ...},参数错误或 GitLab API 错误统一为 {"success": false, "error": ...}。
开发与测试
测试全部使用 AsyncMock 或 httpx.MockTransport,不会访问真实 GitLab:
uv run pytest -q
uv run ruff check src tests main.py
uv run ruff format --check src tests main.py
更多信息:
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