Bazel MCP Server

@MCP-Mirror

代码仓库

基本信息

分类

其他

许可证

MIT license

传输方式

stdio

作者

MCP-Mirror

关于 Bazel MCP Server

Mirror of

#bazel #mcp-server #ai-integration

Bazel MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "nacgarg_bazel-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "github:nacgarg/bazel-mcp-server"
      ]
    }
  }
}

Bazel MCP Server 工具

Build specified Bazel targets

Query the dependency graph for targets matching a pattern

Run tests for specified targets

List all available targets in the workspace (requires path parameter, use "//" for all targets)

Fetch external dependencies

Change the Bazel workspace path at runtime

概览

What is Bazel MCP Server?

Bazel MCP Server is a local server that exposes functionality of the Bazel build system to MCP-enabled AI agents. It is designed for environments where the command-line tool is absent or the shell has a misconfigured environment preventing Bazel use.

How to use Bazel MCP Server?

Install and run via npx -y github:nacgarg/bazel-mcp-server or clone the repository and build from source. Configuration can be provided through CLI arguments, environment variables, or a configuration file using keys like --bazel_path, --workspace_path, --workspace_config, and --log_path. The server is invoked automatically by MCP clients such as Cursor (via .cursor/mcp.json) or Claude Desktop.

Key features of Bazel MCP Server

Build specified Bazel targets with bazel_build_target
Query the dependency graph for matching targets
Run tests for specified targets
List all available targets in the workspace
Fetch external dependencies
Change the Bazel workspace path at runtime

Use cases of Bazel MCP Server

AI agents building Bazel projects without a locally installed Bazel CLI
Querying Bazel dependency graphs from within an MCP-enabled IDE
Running Bazel tests and fetching dependencies via natural language commands

常见问题

Does Bazel MCP Server require a Bazel binary on the system?

Yes, a Bazel binary must be available. It is usually auto-detected, but the path can be explicitly set via `--bazel_path` or the `MCP_BAZEL_PATH` environment variable.

Can I change the workspace path without restarting the server?

Yes, the `bazel_set_workspace_path` tool allows changing the workspace path at runtime.

What clients are supported?

The server works with any MCP-compatible client, including Cursor and Claude Desktop. Note that with Cursor Remote SSH sessions, the server runs locally and may not function as expected.

How is Bazel MCP Server configured?

Configuration is resolved in this order: CLI arguments, environment variables, then a configuration file. Key settings include `--bazel_path`, `--workspace_path`, `--workspace_config`, and `--log_path`.

Can I pass extra flags to Bazel commands?

Yes, each tool (except `bazel_set_workspace_path`) supports an `additionalArgs` parameter for passing flags like `--verbose_failures` or `--test_output=all`.

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