HeliconeHelicone
Lightweight LLM gateway and observability
Helicone sits as a proxy in front of your model providers and gives you logging, caching, rate limiting and cost attribution with a one-line change. It is the lowest-effort observability option and deliberately shallower than its rivals.
[ 01 ] The verdict
The right first purchase when you need to know what you are spending and what you are sending, and you do not yet have an evaluation practice. Teams doing serious quality work outgrow it.
Best for
Small teams and solo builders who want cost visibility and request logging with near-zero setup.
Watch out
Proxying adds a hop in your critical path. Understand the failure mode before routing production traffic through it.
Strengths
- Integration is genuinely a one-line change
- Excellent cost attribution by user, session and feature
- Caching and rate limiting included
- Open source and self-hostable
Trade-offs
- Evaluation capability is thin compared to specialists
- Proxy architecture introduces a dependency in the request path
- Less useful for complex multi-step agent traces
[ 02 ] What it actually does
What Helicone actually ships.
Gateway proxy
Drop-in base URL change that captures every request and response with metadata.
Cost attribution
Spend broken down by user, session, prompt and feature rather than a single monthly total.
Caching
Response caching with configurable TTL to cut repeat inference costs.
Rate limiting
Per-user and per-key limits to contain runaway consumption.
[ 04 ] Helicone alternatives
