---
title: "Helicone (@helicone)"
description: "The complete, open-source LLMOps platform"
account: "helicone"
---

# Helicone

The complete, open-source LLMOps platform

## APIs

2 public APIs with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/helicone/feed.md

- [helicone-api](https://skmtc.dev/helicone/apis/helicone-api.md): LLM observability: trace requests, manage prompts and evaluators, track costs, and query metrics
- [Helicone AI Gateway API](https://skmtc.dev/helicone/apis/helicone-ai-gateway-api.md): AI gateway: route chat and response requests to LLM providers, list available models