Helicone
LLM observability, cost tracking, request logging
About
Open-source LLM observability platform. One-line integration to log every LLM request, track costs, and debug slow or failing calls.
Choose Helicone when…
- •You want one-line LLM observability setup
- •Caching LLM responses to cut costs matters
- •You're an early-stage startup optimizing quickly
Builder Slot
Traces every LLM call, eval, and cost so you know exactly what your stack is doing
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heliconeHELICONE_API_KEYIntegrates with (3)
LiteLLM can route calls through Helicone as a proxy layer or log directly to Helicone's API after each call.
→ Request replay, caching, and Helicone's rate-limit features layered on top of LiteLLM's provider routing.
Helicone is a drop-in proxy for OpenAI's API — change one base URL and every OpenAI call is logged, cached, and monitored.
→ Immediate cost and request logging for OpenAI usage with zero code changes — one URL swap covers the entire app.
Helicone proxies Anthropic's API with the same drop-in URL swap, logging all Claude API calls automatically.
→ Cost and latency tracking for Claude API usage with the same zero-code integration as OpenAI.
Alternatives to consider (5)
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