servers / bazel-mcp-server

bazel-mcp-server

communityunknownpythonunknownhealthy

MCP server for Bazel: query targets, analyze deps, build, test, and read BUILD files

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01Tools · 9

How to read this: tool names here are observed from a live tools/list handshake. The Risk label is a heuristic inferred from the tool name (write/destructive verbs), not from executing the tool — a conservative guess, not a verified capability. We never escalate risk from a description. Found one that's wrong? Tell us — we fix on report.

Tool	Risk	Side effects	Approval
bazel_query Run an arbitrary Bazel query expression. Query is read-only but can be expensive on broad patterns like //... output_format: label, build, xml, package, location, graph, etc.	read	false	unknown
show_target_info Show the BUILD rule definition for a target (bazel query --output=build). Macro-generated targets may differ from on-disk BUILD files.	read	false	unknown
explain_build_file Return BUILD file contents for analysis by the host LLM. path is relative to the workspace root (e.g. foo/bar/BUILD or foo/bar).	unknown	unknown	unknown
get_rdeps Find reverse dependencies of a target within scope, excluding the target itself.	read	false	unknown
bazel_build Run a Bazel build and return structured diagnostics. options are passed as extra bazel flags (e.g. --config=ci, -c opt).	unknown	unknown	unknown
list_targets List all targets matching a package pattern. Default //... lists targets across the entire workspace (can be slow). For a single package use //pkg or pkg (normalized to //pkg:all). For a subtree use //pkg/...	read	false	unknown
find_affected_targets Find all Bazel targets affected by a set of changed files. This is useful for CI optimization - only rebuild/test what's changed.	read	false	unknown
bazel_test Run Bazel tests and return structured pass/fail results with failure log excerpts.	unknown	unknown	unknown
get_deps Get dependencies of a target up to the given depth, excluding the target itself.	read	false	unknown

02Install & source

uvx bazel-mcp-server

uvx

pip install bazel-mcp-server

pip

packagehttps://pypi.org/project/bazel-mcp-server

05Provenance & freshness

sourcesPyPI [p4]

last_checked2026-07-29 09:37Z

next_check2026-07-31 09:31Z

cadenceevery 48h

verifiedtools_list:passed handshake:passed metadata:passed

index_statusindex — 5 unique facts >= 5

06Badge

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