EvalsOpen source

Helicone

Open-source AI gateway and LLM observability platform.

About the tool

Open-source AI gateway and LLM observability platform.

Helicone sits between an application and LLM providers to log requests, sessions, users, costs, and latency, with dashboards, rate limits, and alerts. The project is open source and also offered as a hosted service with a free tier.

Pricing: Open source
Category: Evals
Maker: Not publicly supplied
Provenance: Indexed by PageVerified from public information

For the maker

Featured placement starts as soon as payment confirms. Outbound links are marked sponsored while featured.

Feature for 7 days · $39 Feature for 30 days · $99

Backlink artifact

Show the Attested badge.

This badge links to the public evidence record. The link is followed; the verification claim remains limited to the checks shown above.

Embed HTML

<a href="https://pageverified.com/t/helicone"><img src="https://pageverified.com/badge/helicone" alt="Attested — verified by PageVerified"></a>

Same category

Similar verified tools.

Verified listing

EvalsPaid

Datadog LLM Observability

LLM and agent observability within the Datadog platform.

Verified 25 Aug 2026 · Indexed by PageVerified

ARVerified listing

EvalsFreemium

Arthur

Enterprise AI monitoring, evaluation, and governance platform.

Verified 25 Aug 2026 · Indexed by PageVerified

Verified listing

EvalsFreemium

Maxim AI

End-to-end agent simulation, evaluation, and observability platform.

Verified 25 Aug 2026 · Indexed by PageVerified