Helicone is the smartest way to monitor your LLM applications.

The worlds best open-source platform for AI observability. Get monitoring, logging, and tracing for your LLM applications out of the box.

Backed by Combinator
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Unlocking the full potential of LLM's.

Modern startups and enterprises use Helicone.


Monitoring without the hassle.

Helicone makes it easy to understand what your AI is doing and speeds up your development process - with the easiest integration in the market.


Meaningful Insights

See how your AI is performing in real-time.


2 lines of code

Get integrated in seconds. Not days.

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Open Source

Commited to user-centric development and transparency.


Chat History

Easily replay, debug, and edit chat sessions.

Purpose-built for LLM developers.

Everything you need to build, deploy, and scale your LLM-powered application

  • Custom Properties

    Easily segment requests.

  • Caching

    Save time and money.

  • Rate Limiting

    Protect your models from abuse.

  • Retries

    Retry failed or rate-limited requests.

  • Feedback

    Identify good and bad requests.

  • Vault

    Securely map your provider keys.

  • Jobs

    Visualize chains of requests.

  • GraphQL

    ETL your data to your favorite apps.

  • Alerts

    Get notified on important events.

Frequently asked questions