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Langtrace

Open source LLM observability

Reviewed byRoman K· 2026-04-26

About

Trace, monitor, and debug LLM calls across OpenAI, Anthropic, and other providers. OpenTelemetry-native.

llm-observabilitytracingopentelemetryopen-source

Metrics

3.8k
GitHub Stars
250
Forks
60
Open Issues

More in AI & ML

Frequently asked questions

What is Langtrace?▾

Trace, monitor, and debug LLM calls across OpenAI, Anthropic, and other providers. OpenTelemetry-native. It falls under the ai & ml category and uses a freemium pricing model. The project is actively maintained with 3.8k GitHub stars.

Is Langtrace free?▾

Yes, Langtrace offers a free plan that you can use without a credit card. The pricing model is freemium.

How much does Langtrace cost?▾

Langtrace is free to start. It uses a freemium pricing model. A free plan is available for small projects or evaluation. Check https://langtrace.ai for the latest pricing details and plan comparison.

What category is Langtrace in?▾

Langtrace is a ai & ml tool. LLM APIs, ML platforms, vector databases You can compare Langtrace with 3 alternatives in the same category on Soft.xyz.

Is Langtrace open source?▾

Yes, Langtrace is open source and freely available on GitHub. It has 3.8k stars and 250 forks, with the last commit on 2026-04-26. You can inspect the source code, contribute, or self-host it.

What are alternatives to Langtrace?▾

Popular alternatives to Langtrace include Datadog, Sentry, OpenObserve. Each offers different pricing, features, and community support. You can compare them side-by-side on Soft.xyz using real metrics like GitHub stars, npm downloads, and actual pricing data.

How popular is Langtrace?▾

Langtrace has 3.8k stars on GitHub. It has a solid and growing developer community. The project was last updated on 2026-04-26.