How do I install the bazel mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

What credentials does it need?

It reads `MCP_BAZEL_PATH`, `MCP_WORKSPACE_PATH`, `MCP_LOG_PATH` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

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Bazel MCP Server

MCP server for interacting with Bazel

Local serverstdio

What is the Bazel MCP Server?

MCP server for interacting with Bazel

What the server does

A local MCP server that exposes functionality of the Bazel build system to MCP-enabled AI agents.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
bazel_build_target	Build specified Bazel targets
bazel_query_target	Query the dependency graph for targets matching a pattern
bazel_test_target	Run tests for specified targets
bazel_list_targets	List all available targets in the workspace (requires path parameter, use "//" for all targets)
bazel_fetch_dependencies	Fetch external dependencies
bazel_set_workspace_path	Change the Bazel workspace path at runtime

How to install the Bazel MCP Server

claude mcp add bazel --env MCP_BAZEL_PATH=your-value --env MCP_WORKSPACE_PATH=your-value --env MCP_LOG_PATH=your-value -- npx -y github

Configuration

Variable	Description	Required
MCP_BAZEL_PATH	Filesystem location the server is allowed to use.	Optional
MCP_WORKSPACE_PATH	Filesystem location the server is allowed to use.	Optional
MCP_LOG_PATH	Filesystem location the server is allowed to use.	Optional

Example prompts to try

“Use Bazel to bazel build target.”
“Use Bazel to bazel query target.”
“Use Bazel to bazel test target.”

Frequently asked questions

MCP server for interacting with Bazel Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.