helicone and openinspector
These are competitors, as both offer open-source LLM observability platforms to monitor, log, and trace LLM interactions.
About helicone
Helicone/helicone
🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓
Operates as a reverse proxy AI gateway that intercepts requests to 100+ LLM providers through a unified OpenAI-compatible API, enabling intelligent routing and automatic fallbacks. Built on a microservices architecture with a Cloudflare Workers proxy layer for request interception, Express-based collection server (Jawn), ClickHouse for analytics, and Supabase for application data. Integrates with OpenAI, Anthropic, Gemini, LangChain, Vercel AI SDK, and supports self-hosting via Docker or Helm with optional async logging through OpenLLMetry.
About openinspector
as32608/openinspector
A lightweight, local-first observability proxy and dashboard designed to intercept, log, and trace LLM interactions. OpenInspector acts as a transparent middleman, offering full visibility into agentic workflows, tool executions, and latency metrics without requiring you to change a single line of your application code.
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