Package
langfuse-core
NOT the latest Langfuse JS/TS SDK. Legacy v3 shared core — do not install directly. Current SDK: npm install @langfuse/tracing @langfuse/otel @opentelemetry/sdk-node
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 1.2m
- +282% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 1
- Direct, from package.json
- Last release
- 9 days ago
- v3.39.2
- GitHub stars
- 169
- 108 forks
- Open issues / PRs
- 11 / 39
- Contributors
- -
- Commits, last 52 weeks
- 245
Downloads
Last week 2026-09-15 to 2026-09-21
1,212,544 downloads last week, 6,683,693 in the last month. The 12-month change of +282% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 4104 in total
- Latest version
- 3.39.2, 15 Sept 20269 days ago
- First published
- 25 Nov 2023
- Last push to GitHub
- 24 Sept 2026same day as the snapshot
- Repository archived
- No
- Open issues
- 11
- Open pull requests
- 39
- Commits, last 52 weeks
- 245
- Dependents on npm
- -
Major versions
- v3 first release 3.0.0, 8 Feb 2024
- v2 first release 2.0.0, 18 Dec 2023
Recent releases
| Version | Published |
|---|---|
| 3.39.2 | 15 Sept 2026 |
| 3.38.20 | 1 Apr 2026 |
| 3.38.7 | 31 Mar 2026 |
| 3.38.6 | 16 Oct 2025 |
| 3.38.5 | 28 Aug 2025 |
| 3.38.4 | 9 Jul 2025 |
| 3.38.3 | 8 Jul 2025 |
| 3.38.2 | 4 Jul 2025 |
| 3.38.1 | 3 Jul 2025 |
| 3.38.0 | 2 Jul 2025 |
| 3.37.6 | 26 Jun 2025 |
| 3.37.5 | 23 Jun 2025 |
| 3.37.4 | 6 Jun 2025 |
| 3.37.3 | 26 May 2025 |
- Module format
- ESM + CommonJSFrom package.json type, main and exports fields
- TypeScript types
- Bundled
- Node.js engine range
- >=18
- Runtimes
- -
- Unpacked size (npm)
- 1.0 MB
- Dependencies (1)
mustache
npm install langfuse-core- jsDelivr
https://cdn.jsdelivr.net/npm/langfuse-core@3.39.2/ - unpkg
https://unpkg.com/langfuse-core@3.39.2/ - esm.sh
https://esm.sh/langfuse-core@3.39.2
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|---|---|---|---|---|---|
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| @traceloop/instrumentation-chromadb | 131k | - | 3 months ago | ESM + CommonJS | - |
| @traceloop/instrumentation-qdrant | 130.3k | - | 3 months ago | ESM + CommonJS | - |
| @traceloop/instrumentation-pinecone | 129.2k | - | 3 months ago | ESM + CommonJS | - |
Indexability: Indexed.