Loglens

LogLens is an LLM observability platform built for developers shipping AI products. Add one line of code and every call your app makes to Anthropic or OpenAI gets logged automatically, full prompt, completion, latency, token count, cost, and errors. No proxy setup, no framework lock-in, works with both TypeScript and Python. Built-in cost alerts email you before your bill explodes. Error tracking shows failed calls in red with the exact error type. Free tier, no credit card required.