Project Knowledge

langfuse/langfuse-js

Use langfuse/langfuse-js when the user needs an ai observability project with vercel, serverless, library-only deployment options.

TypeProject / implementation

Difficultybeginner

LanguageTypeScript

LicenseNOASSERTION

TL;DR

Use langfuse/langfuse-js when the user needs an ai observability project with vercel, serverless, library-only deployment options.

Install

Install as a library or package using the repository instructions.

Good For

trace LLM applications

monitor agent behavior

debug production AI systems

Not Good For

edge-only Cloudflare Workers deployment without adaptation

users expecting a complete hosted product

model serving by itself

Git.Top Score86/100

Agent Score70/100

Maintenance62

Stability100

Quality27/100

Best Use

trace LLM applications

Primary situation where this project is a good shortlist candidate.

Watch Out

edge-only Cloudflare Workers deployment without adaptation

Main reason to compare alternatives before adopting it.

Deployment Fit

vercel, serverless, library_only

Git.Top did not classify this as Cloudflare-ready. Evidence: No Cloudflare deployment signal detected.

Best Alternative

open-telemetry/opentelemetry-js: library_only, local

Compare this option when the target stack or language preference differs.

Confidence

3/4 classification signals high; 4 quality signals complete or snapshot

Classification evidence and quality signal confidence should be checked before production recommendations.

Freshness

Repo 2026-08-03; metrics 2026-08-03

Repository and metric timestamps for this knowledge record.

Freshness

Repository and metrics timestamps

Repository synced2026-08-03T16:00:27.884Z

Metrics calculated2026-08-03T16:00:27.884Z

Scoring

Quality and agent score are separate

Quality score weights star movement, commits, releases, contributors, and issue response. Agent score weights documentation, maintenance, deployment, popularity, and community.

Confidence

Signal confidence

Stars 30dsnapshot

Commits 30dcomplete

Releases 180dcomplete

Contributors 90dcomplete

Badge

Agent Score badge

Embed a lightweight SVG badge for this repository.

Project Type

Project / implementation

This repository is treated as an implementation project. Compare its deployment fit, maintenance, and alternatives before adopting it.

Cloudflare Readiness

No Cloudflare-ready signal

Git.Top did not classify this as Cloudflare-ready. Evidence: No Cloudflare deployment signal detected.

Selection Guidance

Use the evidence before choosing

Treat this page as a shortlist input. Confirm source metadata, classification confidence, deployment evidence, and current repository activity before making a production recommendation.

Alternatives

Comparable projects

JSON

open-telemetry/opentelemetry-jsUse open-telemetry/opentelemetry-js when the user needs an ai observability project with library-only, local, cloud deployment options.

traceloop/openllmetryUse traceloop/openllmetry when the user needs an ai observability project with library-only, local, cloud deployment options.

traceloop/openllmetry-jsUse traceloop/openllmetry-js when the user needs an ai observability project with library-only, local, cloud deployment options.

langchain-ai/langsmith-sdkUse langchain-ai/langsmith-sdk when the user needs an ai observability project with library-only, local, cloud deployment options.

pydantic/logfireUse pydantic/logfire when the user needs an ai observability project with library-only, local, cloud deployment options.

Related Projects

Adjacent ecosystem projects

JSON

langfuse/langfuse-javaUse langfuse/langfuse-java when the user needs an ai observability project with local, cloud deployment options. Shared ai observability category and local deployment context.

Arize-ai/openinferenceUse Arize-ai/openinference when the user needs an ai observability project with vercel, serverless, local deployment options. Shared ai observability category and vercel deployment context.

traceloop/hubUse traceloop/hub when the user needs an ai observability project with docker, kubernetes, library-only deployment options. Shared ai observability category and library_only deployment context.

langchain-tracer/AxonUse langchain-tracer/Axon when the user needs an ai observability project with docker, library-only, local deployment options. Shared ai observability category and library_only deployment context.

evilmartians/agent-prismUse evilmartians/agent-prism when the user needs an ai observability project with library-only, local, cloud deployment options. Shared ai observability category and library_only deployment context.

olemeyer/rocketplaneIOUse olemeyer/rocketplaneIO when the user needs an ai observability project with docker, kubernetes, library-only deployment options. Shared ai observability category and library_only deployment context.

Deploy

Supported deployment paths

Compatible With

Inferred dependencies and protocols

Use Cases

Where agents should consider it

Classification Evidence

Why Git.Top categorized this project

Full JSON

Category: highMatched "observability" in metadata. Matched "tracing" in metadata.

Deployment: highMatched "vercel" in repository content. Matched "npm install" in repository content.

Difficulty: mediumRepository has under 10k stars, so complexity is treated conservatively.

Cloudflare Ready: highNo Cloudflare deployment signal detected. No wrangler.toml found in inspected repository files.

Compare

open-telemetry/opentelemetry-js leads this context

JSON

ProjectStarsAgentLocalCloudflareScore

langfuse/langfuse-js153NoYesNo70

open-telemetry/opentelemetry-js3,427NoYesNo81

traceloop/openllmetry7,353NoYesNo80

traceloop/openllmetry-js408NoYesNo63