What It Is
Helicone is an observability and gateway layer for teams running LLM or agent traffic across multiple providers. It stands out in this directory because it sits between pure tracing tools and runtime infrastructure, helping teams with routing, fallbacks, logs, and cost visibility in one operational layer.
Best For
- Teams operating multi-provider agent traffic
- Developers who want gateway-level observability rather than only app-level traces
- Readers comparing open-source observability options with more hosted platforms
Core Use Cases
- Logging and tracing LLM or agent traffic
- Routing requests across providers with fallback logic
- Tracking cost and usage in multi-provider systems
- Supporting production operations where observability and gateway control overlap
Integrations
- OpenAI SDK-based applications
- Anthropic-backed usage
- Google model usage
- LangGraph and framework-adjacent workflows
Deployment
- Hosted cloud usage
- Self-hosted or controlled deployment for teams needing more control
Pricing
Helicone blends open-source components with hosted product paths. For readers, the important distinction is whether they need gateway and routing behavior in addition to observability.
Pros
- Good fit for multi-provider production stacks
- Open-source credibility with hosted expansion paths
- Strong overlap between observability and runtime operations
Cons
- Broader operational scope can make comparisons less simple
- Less necessary for single-provider or lightweight setups
- Teams still need clear internal eval practices beyond traffic logging
Alternatives
- Langfuse
- LangSmith
- Arize Phoenix
- Braintrust
Related Tools
- Langfuse
- LangSmith
- Arize Phoenix
- Braintrust
- Cloudflare Agents