Spanlens · Open Source LLM Observability & Monitoring

Open source LLM observability and monitoring tool for major AI platforms.

Other Freemium
14 views 0 likes July 3, 2026

About Spanlens · Open Source LLM Observability & Monitoring

Open source LLM observability and monitoring for OpenAI, Anthropic, and Gemini. Request logging, cost tracking, agent tracing. Self-hostable, MIT licensed.

Key Features

  • Request logging with detailed metrics Cost tracking with budget alerts Agent tracing for multi-step workflows

Use Cases

  • Monitoring AI model performance Managing costs of AI operations

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