What Weave does
Tracing and evaluation for LLM applications including tool calls
Why teams reach for it: Prevent production agent reliability collapse by learning from real-world failures that offline testing misses.
Worth knowing
It observes from the agent developer perspective, supports session replay, runs evaluations.
How Weave compares
Fields the vendor doesn't document are left blank here rather than guessed — a blank means nothing verified, not a "no."
- Perspective
- Agent developer
- Mcp Aware
- Generic LLM or agent
- Instrumentation Method
- server SDK, OpenTelemetry
- Traces
- Yes
- Session Replay
- Yes
- Evaluations
- Yes
- Datasets
- Yes
- Self Hostable
- Yes
How will you trace quality and operations?
Observability & evaluation tools track how well an MCP server is performing and help catch issues once it's live.