You don't need to adopt new tools for LLM observability
If you've built any web-based app in the last 15 years, you probably used something like Datadog, New Relic, Sentry, etc. to monitor and trace your app, right? Why should it be different when the app you're building happens to be using LLMs? So today we're open-sourcing OpenLLMetry-JS. It's an open protocol and SDK, based on OpenTelemetry, that provides traces and metrics for LLM JS/TS applications and can be connected to any of the 15+ tools that already support OpenTelemetry. Here's the repo: https://github.com/traceloop/openllmetry-js A few months ago we launched…
In plain words
OpenLLMetry-JS is an open-source SDK based on OpenTelemetry that provides traces and metrics for JavaScript and TypeScript applications using large language models. Built for developers who already use monitoring tools like Datadog, New Relic, or Sentry, it integrates with 15+ existing observability platforms without requiring new tools. The SDK enables LLM applications to use the same monitoring infrastructure as traditional web applications.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
If you've built any web-based app in the last 15 years, you probably used something like Datadog, New Relic, Sentry, etc. to monitor and trace your app, right? Why should it be different when the app you're building happens to be using LLMs? So today we're open-sourcing OpenLLMetry-JS. It's an open protocol and SDK, based on OpenTelemetry, that provides traces and metrics for LLM JS/TS applications and can be connected to any of the 15+ tools that already support OpenTelemetry. Here's the repo: https://github.com/traceloop/openllmetry-js A few months ago we launched the python flavor here (https://news.ycombinator.com/item?id=37843907) and we've now built a compatible one for Node.js. Would love to hear your thoughts and opinions! Check it out - Docs: https://www.traceloop.com/docs/openllmetry/getting-started-t... Github: https://github.com/traceloop/openllmetry-js https://github.com/traceloop/openllmetry
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