Respan

What is Respan?

Respan is a production observability and evaluation platform built specifically for AI agents and LLM-powered applications. If you're shipping anything that calls a language model in production, whether that's a chatbot, a multi-step agent, or a document processing pipeline, this is the kind of tool that tells you what's actually happening inside it. The platform captures full execution traces across messages, tool calls, routing decisions, memory reads, environment state, and final outcomes. Rather than seeing a single prompt and response, you get a timeline of every step an agent took, which makes debugging complex failures significantly faster. One user described the difference plainly: instead of spending an hour trying to reproduce a bug, they could see exactly what went wrong almost immediately. Observability is only part of the picture. **Respan also handles evaluation**, letting you run automated scoring on production traffic or historical data. You can compare outputs across different model versions, prompt variants, or configurations and catch regressions before they affect users. The evaluation layer connects directly to the trace data, so findings aren't abstract…