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Google API Linter

Free#18 of 25 in API Governance Software

Google API Linter: A focused CLI for enforcing Google API and AIP rules across protobuf APIs. Ranked #18 of 25 in API Governance Software by our editors (6.9/10); pricing: Open source; best for teams governing Protocol Buffer APIs.

6.9/10Editor score

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Google API Linter6.9 Visit site

At a glance

Editor score
6.9 / 10
Pricing
Open source
Best for
Teams governing Protocol Buffer APIs
Paid from
Free
Style guide enforcement
Yes
Facts checked
20 Sep 2026

Where it wins
- Checks protobuf APIs against Google standards and AIP rules
- Configurable rules with JSON, YAML, GitHub, and summary reports
- Can fail CI with a nonzero exit status when lint errors are found
Where it doesn't
- Limited to API surfaces defined in Protocol Buffers
- Its guidance is centered on Google standards and AIP rules
- Requires a local Go installation and command-line workflow

Our verdict on Google API Linter

Google API Linter is an open-source command-line tool for developers and API teams maintaining APIs defined in Protocol Buffers. It checks API surfaces for naming, consistency, and other design issues against Google API standards documented in API Improvement Proposals. When available, it suggests corrective changes, giving protobuf-focused teams a way to review API quality as part of their development workflow.

The pricing model is open source, and the tool is installed locally with Go rather than presented as a hosted subscription product. Teams can run it against one or more proto files, enable or disable individual lint rules, and configure behavior through flags, configuration files, or proto-file comments. For automated workflows, it can return a failing exit status when lint errors are found. Reports can be emitted as YAML, JSON, GitHub, or summary output, making the results adaptable to different review and CI contexts.

Its strongest fit is a team that wants explicit, configurable governance for Protocol Buffer APIs and is comfortable with a command-line tool. The scope is deliberately narrow: it governs protobuf-defined API surfaces and evaluates them through Google standards and AIP rules. That focus makes it less suitable for teams governing other API formats or looking for a broader, multi-platform governance environment. Choose Google API Linter when protobuf consistency, rule-level control, corrective guidance, and CI failure behavior are the priority; consider an alternative when governance must extend beyond Protocol Buffers or a hosted workflow is required.

Your product? Our editors can test Google API Linter in depth and publish a review, labelled as paid · from $149/mo →

Google API Linter pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on linter.aip.dev

Google API Linter fact sheet

Free plan	Not verified
Paid from	Free
Style guide enforcement	Yes
API linting	Yes
Governed API formats	Protocol Buffers
Lifecycle controls	Not verified
Design review workflows	Not verified
CI/CD integration	Yes
Access control level	Not verified
Deployment	Self-hosted
Support	Docs
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Open source
Website	linter.aip.dev
Facts checked	20 Sep 2026

Alternatives to Google API Linter

See all Google API Linter alternatives →

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Featured on iTechGuides

Google API Linter is listed in our API Governance Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update