# Helicone

**Canonical:** https://apis.io/apis/evals/helicone/  
**Provider:** Evals — https://apis.io/providers/evals/  
**Base URL:** https://api.helicone.ai  
**Documentation:** https://www.helicone.ai/

Helicone is one of 20 APIs that [Evals](https://apis.io/providers/evals/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Open-Source, Observability, Proxy, Prompt Management, and Y Combinator. The published artifact set on APIs.io includes API documentation, a GitHub repository, and pricing.

Helicone is an open-source observability and monitoring platform for LLM applications. The homepage states "The world's fastest-growing AI companies rely on Helicone to route, debug, and analyze their applications." Beyond observability dashboards (requests, segments, sessions, users), it offers prompt management, datasets, a playground, rate-limit tracking, and alerts. LLM-as-a-judge style evaluation runs against captured request logs.

## Machine-readable artifacts (3)

- **Documentation** — https://docs.helicone.ai/
- **GitHubRepository** — https://github.com/Helicone/helicone
- **Pricing** — https://www.helicone.ai/pricing

## Other Evals APIs (12)

- [OpenAI Evals](https://apis.io/apis/evals/openai-evals/)
- [Inspect AI](https://apis.io/apis/evals/inspect-ai/)
- [Braintrust](https://apis.io/apis/evals/braintrust/)
- [LangSmith Evaluation](https://apis.io/apis/evals/langsmith-evaluation/)
- [Promptfoo](https://apis.io/apis/evals/promptfoo/)
- [Patronus AI](https://apis.io/apis/evals/patronus-ai/)
- [DeepEval (Confident AI)](https://apis.io/apis/evals/deepeval-confident-ai/)
- [Arize AI (Phoenix)](https://apis.io/apis/evals/arize-ai-phoenix/)
- [Galileo](https://apis.io/apis/evals/galileo/)
- [Humanloop](https://apis.io/apis/evals/humanloop/)
- [TruLens](https://apis.io/apis/evals/trulens/)
- [Weights and Biases Weave](https://apis.io/apis/evals/weights-and-biases-weave/)

## Tags

Open-Source, Observability, Proxy, Prompt Management, Y Combinator

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/evals/helicone/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/evals/.