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SPECIFICTION
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API Validator

validator.apicommons.org

WebSelf-hosted
Visit validator.apicommons.org
Spec score 7.6 #16 of 25 in API Governance Software

Spec sheet

Purpose
API Validator lints API descriptions against a Spectral-powered governance ruleset in the browser.Read 7 Oct 2026 · validator.apicommons.org
Privacy
The maker says the app has no backend or accounts and that tokens and documents stay in the browser.Read 7 Oct 2026 · validator.apicommons.org
Support
The project says API Evangelist offers expert governance services for teams seeking help.Read 7 Oct 2026 · github.com
License
The repository states that the code is licensed under Apache-2.0.Read 7 Oct 2026 · github.com
Headquarters
San Francisco, CARead 28 Sep 2026 · validator.apicommons.org
Maker
API Validator is a project of API Evangelist and is maintained under API Commons.Read 7 Oct 2026 · validator.apicommons.org
Artifact search
Users can search GitHub, GitLab, and Bitbucket for artifacts using their own tokens, or upload a file from disk.Read 7 Oct 2026 · validator.apicommons.org
Documentation
The tool can generate documentation for the current artifact and download it as HTML or Markdown.Read 7 Oct 2026 · validator.apicommons.org
Editing
The editor uses Monaco and supports switching between YAML and JSON.Read 7 Oct 2026 · validator.apicommons.org
Git integrations
It can search GitHub, GitLab, and Bitbucket using the user's own token and can commit changes or open a pull request to a repository.Read 7 Oct 2026 · validator.apicommons.org
Intended audience
The maker describes it as a simple, deliberately narrow validator for four API artifact types.Read 7 Oct 2026 · github.com
Limits
The maker describes its scope as deliberately limited to four artifact types.Read 7 Oct 2026 · validator.apicommons.org
Lint engine
It uses the Spectral engine, with built-in Spectral rulesets for OpenAPI and AsyncAPI and curated inline rules for Arazzo and JSON Schema.Read 7 Oct 2026 · validator.apicommons.org
Local storage
Documents, tokens, saved artifacts, and rule overrides are stored in browser local storage; Git-host requests are sent directly from the browser when those features are used.Read 7 Oct 2026 · github.com
Local use
The Run Locally button downloads the whole app as a self-contained file that can run offline.Read 7 Oct 2026 · validator.apicommons.org
Maintainer
The project is maintained openly under API Commons and is a project of API Evangelist.Read 7 Oct 2026 · github.com
Offline use
The entire app can be downloaded as a single self-contained file for local use.Read 7 Oct 2026 · validator.apicommons.org
Pricing and licensing
The project is open source and free to fork; API Evangelist offers expert governance services for users who want help.Read 7 Oct 2026 · validator.apicommons.org
Rule controls
Users can filter, disable, or retune rules; saved overrides persist in the browser.Read 7 Oct 2026 · validator.apicommons.org
Rules
Users can adjust a finding’s severity, message, or description, or disable its rule; saved overrides persist in the browser.Read 7 Oct 2026 · validator.apicommons.org
Save and publish
Documents autosave to browser local storage, can be assembled into an APIs.json 0.21 index, and can be committed or submitted as a pull request to a repository.Read 7 Oct 2026 · validator.apicommons.org
Supported formats
It lints OpenAPI 3.x and Swagger 2.0, AsyncAPI, Arazzo, and JSON Schema.Read 7 Oct 2026 · github.com
Transformations
Utilities include bundling $refs, componentizing, splitting by tag, channel, or workflow, and migrating JSON Schema drafts.Read 7 Oct 2026 · validator.apicommons.org

Where Specifiction places it

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