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@opentelemetry/propagator-b3

OpenTelemetry B3 propagator provides context propagation for systems that are using the B3 header format

v2.11.0, 31 Aug 2026Apache-2.0ESM + CommonJSTypes: BundledMonitoring and error tracking
$ npm install @opentelemetry/propagator-b3
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Key numbers

As of 25 Sept 2026
Weekly downloads
16m
+187% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
1
Direct, from package.json
Last release
24 days ago
v2.11.0
GitHub stars
3.5k
1.2k forks
Open issues / PRs
168 / 60
Contributors
404
Commits, last 52 weeks
733

Downloads

Last week 2026-09-15 to 2026-09-21
010m20m30mSept 2025Mar 2026Sept 2026High 22.4m (25 Aug 2026)Low 3.9m (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.

15,987,650 downloads last week, 75,110,066 in the last month. The 12-month change of +187% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
1375 in total
Latest version
2.11.0, 31 Aug 202624 days ago
First published
26 Oct 2020
Last push to GitHub
24 Sept 2026same day as the snapshot
Repository archived
No
Open issues
168
Open pull requests
60
Commits, last 52 weeks
733
Dependents on npm
133

Major versions

  1. v2 first release 2.0.0, 17 Mar 2025
  2. v1 first release 1.0.0, 30 Sept 2021
  3. v0 first release 0.13.0, 4 Dec 2020

Recent releases

VersionPublished
2.11.031 Aug 2026
2.10.021 Jul 2026
2.9.02 Jul 2026
2.8.011 Jun 2026
2.7.129 Apr 2026
2.7.017 Apr 2026
2.6.125 Mar 2026
2.6.03 Mar 2026
2.5.112 Feb 2026
2.5.021 Jan 2026
2.4.014 Jan 2026
2.3.08 Jan 2026
2.2.021 Oct 2025
2.1.04 Sept 2025

Compatibility

Module format
ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
^18.19.0 || >=20.6.0
Runtimes
-
Unpacked size (npm)
116 kB
Dependencies (1)
@opentelemetry/core
Peer dependencies (1)
@opentelemetry/api

Install

npm install @opentelemetry/propagator-b3

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/@opentelemetry/propagator-b3@2.11.0/
  • unpkghttps://unpkg.com/@opentelemetry/propagator-b3@2.11.0/
  • esm.shhttps://esm.sh/@opentelemetry/propagator-b3@2.11.0

Alternatives

PackageWeekly downloadsGzipLast releaseModuleComparison
@traceloop/instrumentation-openai165.8k-3 months agoESM + CommonJS-
@opencensus/core402.4k-5 years agoCommonJS-
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.