Langtrace

Langtrace ๐Ÿ” is an open-source, Open Telemetry based end-to-end observability tool for LLM applications, providing real-time tracing, evaluations and metrics for popular LLMs, LLM frameworks, vectorDBs and more.. Integrate using Typescript, Python. ๐Ÿš€๐Ÿ’ป๐Ÿ“Š

Data confidence94/100
Source coverage90/100
Publish confidence92/100
Evidence checkedJul 30, 2026

Evidence Watch

ToolVitals has useful public signals for Langtrace, but not enough evidence to publish a strong verdict score yet.

GitHub source94/100 data confidence
About this tool

What ToolVitals knows about Langtrace

Langtrace ๐Ÿ” is an open-source, Open Telemetry based end-to-end observability tool for LLM applications, providing real-time tracing, evaluations and metrics for popular LLMs, LLM frameworks, vectorDBs and more.. Integrate using Typescript, Python. ๐Ÿš€๐Ÿ’ป๐Ÿ“Š

This tool has an OSI-approved open-source license signal.

Multiple signals suggest declining health or reduced shipping momentum.

Source-visible projectObservabilityOSI-approved OSSEvidence Watch
Repository

GitHub Activity

TS
Scale3-Labs/langtrace
Stars1,222
Forks125
Watchers1,222
Open Issues1
Primary Language
TypeScript
Last Commit
255 days ago
Releases 90d
0
Default Branch
main
License
AGPL-3.0
Repository Status
Active repository
Evidence

Signal Quality

Data Confidence94/100Strong
Source Coverage90/100Strong
Publish Confidence92/100Strong

ConfidenceHigh-confidence score from multiple public signals.

Zombie RiskNo meaningful zombie signal right now.

How ToolVitals scores work
Openness

License Evidence

Class
OSI-approved OSS
License
AGPL-3.0

This tool has an OSI-approved open-source license signal.

Sources

Tracked Sources

Profile

Classification

Category
Monitoring
Use Case
Observability
Openness
OSI-approved OSS
License
AGPL-3.0
Tool Mode
Source-visible project
Score Model
Open Source Maintenance
Score Visibility
Evidence Watch
Status
Critical
Maintainers

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Tags
open-sourceaidatasetsevaluationsgptlangchainllmllm-frameworkllmopsobservabilityopen-telemetryopenaiprompt-engineeringtracingmetricspython-sdktypescript-sdk

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