Item detail
github.com

langfuse/langfuse

langfuse/langfuse is a developer tool in RepoRadar's AI Observability section, holding Gold tier and a 'try now' verdict. Its strongest signal is workflow potential, scored 9.8 out of 10.

Score8.7
Popularity76.0
Riskconditional
TierGold
Score breakdown
Usefulness8.0
Novelty7.0
Momentum7.0
Maturity8.3
Open-source/build8.4
Evidence7.2
Workflow potential9.8
Setup ease6.4

Popularity is tracked separately. Support, ads, sponsorships, and tips never affect these signals.

Why it matters

Useful for LLM application developers, AI engineering teams, production-AI observability engineers, and prompt-engineering leads who need an open-source AI engineering platform with tracing, LLM evals, observability, metrics, prompt management, a playground, and datasets, integrating with OpenTelemetry, LangChain, OpenAI SDK, and LiteLLM, with official Python and Node.js SDKs and a self-hostable

Who should use it

LLM platform operators AI product teams evals and observability owners

Who should skip it

Skip langfuse/langfuse if the source link, documentation, or setup requirements do not align with your current workflow or stack.

About this signal

langfuse/langfuse is tracked by RepoRadar as a developer tool in the AI Observability section. First seen 2026-07-09; the source record was last checked on 2026-07-09. The current verdict is 'try now' with a Gold tier and moderate setup difficulty. The standout signals for langfuse/langfuse are workflow potential (9.8) and open-source/build quality (8.4), while setup ease (6.4) trails — that balance shapes where it fits best. This page summarizes the public evidence on the linked source page and states where additional review is still needed.

How this item is evaluated

The langfuse/langfuse record combines a 8.7/10 composite score with separate popularity (76.0), risk (conditional), and setup (moderate) signals. See the scoring methodology for the current weights and evidence definitions.

Putting this into practice? Read How to evaluate an AI tool before you adopt it for the checklist behind this score.

Risk explanation

Telemetry and score data can include prompt-sensitive content; ensure retention and export controls align with your privacy policy.

Evidence links
Closest alternatives / related signals
observability traces evals llm-ops dashboard
Verification record

What RepoRadar actually verified

Installed and tested

Hands-on setup or capability check retained by RepoRadar verification harness. Last checked 2026-07-13T03:22:54.334328Z.

partial · cohort-20260712-langfuse-import

Tester
RepoRadar automated local verification harness
Started
2026-07-13T03:22:52.217177Z
Completed
2026-07-13T03:22:54.334328Z
Environment
Windows 10 AMD64; Python 3.11.9; credential-stripped child environment; disposable home/cache
Install/setup time
0 minute(s)
Evidence scope
Bounded setup or capability check
Cleanup
Per-check temporary home and work directory removed. Shared cohort package cache removed.
Actions exercised
  • Created a disposable home, work directory, and isolated package cache with credential-like environment variables excluded.
  • Executed bounded check: Install and import the Langfuse Python SDK.
  • Captured the complete sanitized stdout, stderr, exit status, and 2.12-second wall time.
Observed results
  • Command exited 0 after 2.12 seconds.
  • Expected marker 'CHECK_OK' was observed in retained output.
Observed strengths
  • langfuse==4.14.0 installed and imported successfully in the isolated Python environment without a service or credentials.
Friction
  • The command emitted stderr; warnings or errors are preserved in the retained log for review.
Limitations
  • No Langfuse service, credentials, trace ingestion, evaluation, or dashboard was exercised.
  • This bounded cohort check is not a production benchmark or a claim of real user-workflow adoption.

Pricing assessment: No paid plan or metered provider usage was exercised; package or licensing, hosting, and provider costs remain workflow-dependent.

Privacy assessment: No repository content, user data, or provider prompt was transmitted; broader product data handling was not assessed by this bounded run.

Open retained test log →

Verification sources

Longitudinal intelligence

How this decision record is moving

Raw history JSON →

54 dated snapshots retained from 2026-06-18 through 2026-08-21; see the snapshot index for explicit coverage gaps. Stars, version, release, pricing, integration, risk, maintenance, verdict, score, and momentum fields remain explicit even when a source has not reported them. Repository momentum is a normalized 0–10 RepoRadar signal; GitHub stars appear only where the popularity monitor retained exact timestamped observations.

RepoRadar score8.7 current · +0.5 net
Repository momentum9.6 current · +2.6 net
GitHub stars (observed)33,510 current · +2,472 net
GitHub stars33,510 exact observation
Versionv4.16.0
Last release2026-08-21T05:59:55Z
Maintenanceactive
Current riskconditional
Current verdicttry now
Pricing baselineNo structured commercial pricing baseline
Pricing checkedNot applicable or not recorded
Pricing freshnessNo dated commercial pricing review
Integrations baselineLangChain, LlamaIndex, OpenAI

Recent dated points

DateScoreMomentumStarsRiskVerdictMaintenance
2026-08-218.79.633,510conditionaltry nowactive
2026-08-208.79.633,312conditionaltry nowactive
2026-08-198.79.633,312conditionaltry nowactive
2026-08-188.79.633,312conditionaltry nowactive
2026-08-178.79.633,233conditionaltry nowactive
2026-08-158.79.633,092conditionaltry nowactive
2026-08-148.79.633,092conditionaltry nowactive
2026-08-138.79.633,053conditionaltry nowactive
2026-08-128.79.632,973conditionaltry nowactive
2026-08-118.79.632,875conditionaltry nowactive
2026-08-108.79.632,810conditionaltry nowactive
2026-08-098.79.632,769conditionaltry nowactive

Why the record changed

version changed

Version changed: v4.12.0 → v4.16.0.

stars changed

Stars changed: 33312 → 33510.

stars changed

Stars changed: 33233 → 33312.

version changed

Version changed: v4.11.0 → v4.12.0.

stars changed

Stars changed: 33092 → 33233.

version changed

Version changed: v4.10.0 → v4.11.0.

stars changed

Stars changed: 33053 → 33092.

stars changed

Stars changed: 32973 → 33053.

stars changed

Stars changed: 32875 → 32973.

version changed

Version changed: v4.7.1 → v4.10.0.

version changed

Version changed: v4.6.0 → v4.7.1.

stars changed

Stars changed: 32810 → 32875.