Respan
Nested traces for every LLM call, tool run, and agent turn
The top alternatives to AgentOps in the Observability, Prompts & Evals space, compared on features, pricing, and what they're best at.
Updated October 6, 2026
AgentOps is an open-source SDK for tracing AI agents, organized around sessions you can replay step by step, with decorators for agents, operations, and workflows and native support for frameworks like CrewAI, AutoGen, and the OpenAI Agents SDK. People look for AgentOps alternatives when they need evals beyond custom metrics, since agent scorecards are still on its roadmap, or want prompt management and model routing alongside tracing.
Respan is the closest fit, and using it doesn't require moving off AgentOps. Respan's native AgentOps integration exports the spans your decorators already create, so sessions land in Respan without re-instrumenting, and you add evals on live traffic, monitors that alert when a metric breaches, and routing across 1,000+ models on top.
Among other AI observability tools, Laminar is also built for agent traces, with failure detection and evals on production data. Langfuse and Arize Phoenix are open-source and self-hostable, LangSmith fits teams on LangChain and LangGraph, and Braintrust is organized around evals in CI.
One platform for routing, observability, tracing, and evals across every LLM provider.
Respan's AgentOps integration exports the spans your decorators already create, so you can score sessions on live traffic and get alerted the moment a metric trips. Start free.