Helicone review
Open-source LLM observability
4.7
Freemium— usersCommunity TrustedFree Tier
67
ToolHund Score
Solid
Verified
Our verdict
Helicone is an open-source proxy and platform for logging, caching, rate-limiting and evaluating LLM calls.
ToolHund Score: 67/100 · Best for: Developers who want per-request LLM logging, caching and cost tracking in minutes.
Strengths
- Request logging
- Strong fit for developers who want per-request llm logging, caching and cost tracking in minutes.
- Real free plan you can ship work with
Weaknesses
- Advanced features may require a higher tier
- Output quality varies with prompt skill
- Limited offline use — internet required
Pricing
Free · Pro from $20/mo
Strong — free plan covers most casual use, paid unlocks pro workflows
Features
- Request logging
- Caching
- Rate limiting
- Cost tracking