Helicone

Open-source AI gateway and LLM observability.

open-source / freemium · starts at $79/mo

Website GitHub Pricing source

Pricing model: open-source / freemium
Starts at: $79/mo
GitHub stars: 6,224
Last push: Oct 10, 2026
Last verified: Oct 15, 2026

Tier lists

Where Helicone is ranked, and why. Every placement is provisional.

B
Agent Observability & Evals
Agents
Simple proxy-based logging plus gateway.
provisional

Related tools

Other tools on the same provisional lists.