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openapi-backend

Build, Validate, Route, Authenticate and Mock using OpenAPI definitions. Framework-agnostic

v5.21.1, 19 Sept 2026MITCommonJSTypes: BundledDocumentation toolingCloud SDKs
$ npm install openapi-backend

Key numbers

As of 25 Sept 2026
Weekly downloads
77.3k
+96% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
10
Direct, from package.json
Last release
5 days ago
v5.21.1
GitHub stars
687
98 forks
Open issues / PRs
51 / 7
Contributors
-
Commits, last 52 weeks
110

Downloads

Last week 2026-09-15 to 2026-09-21
050k100k150kSept 2025Mar 2026Sept 2026High 129.1k (18 Aug 2026)Low 22.5k (23 Dec 2025)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

77,303 downloads last week, 401,751 in the last month. The 12-month change of +96% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
-
Latest version
5.21.1, 19 Sept 20265 days ago
First published
-
Last push to GitHub
24 Sept 2026same day as the snapshot
Repository archived
No
Open issues
51
Open pull requests
7
Commits, last 52 weeks
110
Dependents on npm
96

Major versions

-

Recent releases

-

Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
>=20.0.0
Runtimes
-
Unpacked size (npm)
168 kB
Dependencies (10)
qsajvcookielodashbath-es5openapi-typesmock-json-schemadereference-json-schemaopenapi-schema-validator@apidevtools/json-schema-ref-parser
npm install openapi-backend
  • jsDelivrhttps://cdn.jsdelivr.net/npm/openapi-backend@5.21.1/
  • unpkghttps://unpkg.com/openapi-backend@5.21.1/
  • esm.shhttps://esm.sh/openapi-backend@5.21.1
PackageWeekly downloadsGzipLast releaseModuleComparison
chanfana68.6k-1 month agoESM + CommonJS-
@azure-tools/openapi8.9k-1 year agoCommonJS-
@microsoft.azure/openapi-validator8.9k-1 year agoCommonJS-
@microsoft.azure/openapi-validator-core9k-1 year agoCommonJS-
@microsoft.azure/openapi-validator-rulesets7.7k-5 months agoCommonJS-
swagger-routes-express6.3k-1 year agoCommonJS-
express-jsdoc-swagger12.8k-4 years agoCommonJS-
express-openapi-validator409.5k-8 months agoCommonJS-
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.