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oas

Comprehensive tooling for working with OpenAPI definitions

v38.6.0, 22 Sept 2026MITESM + CommonJSTypes: BundledDocumentation tooling
$ npm install oas
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Key numbers

As of 25 Sept 2026
Weekly downloads
525.3k
+114% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
8
Direct, from package.json
Last release
2 days ago
v38.6.0
GitHub stars
400
41 forks
Open issues / PRs
6 / 10
Contributors
-
Commits, last 52 weeks
347

Downloads

Last week 2026-09-15 to 2026-09-21
0200k400k600k800kSept 2025Mar 2026Sept 2026High 761.3k (4 Aug 2026)Low 121.9k (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.

525,278 downloads last week, 2,586,145 in the last month. The 12-month change of +114% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
68359 in total
Latest version
38.6.0, 22 Sept 20262 days ago
First published
17 Mar 2017
Last push to GitHub
22 Sept 20262 days before the snapshot
Repository archived
No
Open issues
6
Open pull requests
10
Commits, last 52 weeks
347
Dependents on npm
61

Major versions

  1. v38 first release 38.0.0, 7 Jul 2026
  2. v37 first release 37.0.0, 25 Jun 2026
  3. v36 first release 36.0.0, 17 Jun 2026
  4. v34 first release 34.0.1, 1 Jun 2026
  5. v33 first release 33.0.0, 1 May 2026
  6. v32 first release 32.0.0, 20 Mar 2026
  7. v31 first release 31.0.0, 2 Mar 2026
  8. v29 first release 29.0.0, 5 Feb 2026
  9. v28 first release 28.0.0, 29 Jul 2025
  10. v27 first release 27.0.0, 14 Apr 2025
  11. v26 first release 26.0.0, 5 Mar 2025
  12. v25 first release 25.0.0, 10 Sept 2024
  13. v24 first release 24.0.0, 1 Nov 2023
  14. v23 first release 23.0.0, 9 Oct 2023
  15. v22 first release 22.0.0, 25 Sept 2023
  16. v21 first release 21.0.1, 1 Sept 2023
  17. v20 first release 20.0.0, 28 Oct 2022
  18. v19 first release 19.0.0, 10 Oct 2022
  19. v18 first release 18.0.0, 8 Mar 2022
  20. v17 first release 17.0.0, 5 Nov 2021
  21. v16 first release 16.0.0, 28 Oct 2021
  22. v15 first release 15.0.0, 28 Oct 2021
  23. v14 first release 14.0.0, 30 Jul 2021
  24. v13 first release 13.0.0, 10 Jun 2021
  25. v12 first release 12.0.0, 7 Jun 2021
  26. v11 first release 11.0.0, 11 May 2021
  27. v10 first release 10.0.0, 27 Jan 2021
  28. v9 first release 9.0.0, 9 Jan 2021
  29. v8 first release 8.0.0, 15 Dec 2020
  30. v7 first release 7.0.0, 8 Dec 2020
  31. v6 first release 6.0.0, 10 Nov 2020
  32. v5 first release 5.0.0, 21 Oct 2020
  33. v4 first release 4.0.0, 20 Oct 2020
  34. v3 first release 3.0.0, 6 Mar 2020
  35. v2 first release 2.0.0, 22 Feb 2020
  36. v1 first release 1.0.0, 12 Nov 2019
  37. v0 first release 0.6.1, 17 Mar 2017

Recent releases

VersionPublished
38.6.022 Sept 2026
38.5.311 Sept 2026
38.5.24 Sept 2026
38.5.12 Sept 2026
38.5.027 Aug 2026
38.4.027 Aug 2026
38.3.125 Aug 2026
38.3.010 Aug 2026
38.2.04 Aug 2026
38.1.230 Jul 2026
38.1.128 Jul 2026
38.1.016 Jul 2026
38.0.18 Jul 2026
38.0.07 Jul 2026

Compatibility

Module format
ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
>=20
Runtimes
-
Unpacked size (npm)
1.6 MB
Dependencies (8)
jsonpointerjsonpath-plusopenapi-typespath-to-regexp@types/json-schema@readme/openapi-parserjson-schema-merge-allofremove-undefined-objects

Install

npm install oas

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/oas@38.6.0/
  • unpkghttps://unpkg.com/oas@38.6.0/
  • esm.shhttps://esm.sh/oas@38.6.0
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.