Helicone
US · proxy
Observability proxy adding logging, caching and cost tracking in front of your existing keys. Joined Mintlify in 2026.
Free tierOpenAI-compatible
- Category
- proxy
- Free tier
- Yes
- OpenAI API
- Compatible
- Adds on top
- 0% on tokens - billed per logged request
Margin over the underlying model price
Helicone alternatives
Other services in the same category. These are genuine substitutes - services in a different category solve a different problem.
Frequently asked
Is Helicone OpenAI-compatible?
Yes. Helicone accepts the OpenAI chat-completions request shape, so most SDKs work by changing the base URL and API key.
Does Helicone have a free tier?
Yes - Helicone offers free usage, though limits and eligible models change frequently. Check the pricing page before relying on it.
How does Helicone charge?
Per logged request, free tier then subscription Margin over the underlying model price: 0% on tokens - billed per logged request.