Helicone

Name: Helicone
Author: Helicone

Open-source LLM gateway with logging, caching, and cost tracking.

Why it's indexed

A one-line proxy change gets you logging and cost attribution with no SDK rewrite.

Editorial judgement, not a measurement — see our methodology. Listing is never paid for.

Pricing is shown as a model, not a rate. Published rates change without notice — check the vendor's own page before budgeting.

Open-source LLM tracing, evaluation, and prompt management.

Tracing, evaluation, and monitoring from the LangChain team.

Open-source, OpenTelemetry-native tracing and evaluation for LLM apps.