Helicone

AI Gateway & LLM Observability

Open-source LLM observability platform with an AI gateway. Tracks usage, latency, and costs across AI models, and provides request caching, rate limits, automatic fallbacks, prompt management, datasets, user analytics, and a query language (HQL). Supports cloud and self-hosted deployment.

Category: Monitoring & observability
Pricing: freemium
Free tier: yes
API: yes
MCP server: no
SDK: yes
Open source: yes

#llm-observability #ai-gateway #open-source #monitoring #caching #prompt-management

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Listed 2026-10-25 · last verified 2026-10-25 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.95

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