Mcp Agent Trace Inspector
Inspect MCP agent runs step-by-step when tool calls fail silently or you need a replayable trace of what the agent did.
Overview
MCP Agent Trace Inspector is an Operate-phase MCP server that provides step-by-step observability for MCP agent workflows.
What is this MCP server?
- Step-by-step visibility into MCP agent tool and message flow
- stdio npm package (mcp-agent-trace-inspector) for Claude Code–style hosts
- Focused on MCP workflow debugging rather than generic APM
- Pairs with cost and eval MCP tools from the same publisher for full agent ops
- Requires YOUR_API_KEY for authenticated trace or inspector backend
- Server schema version 1.0.0
- Single npm package with stdio transport
- One required secret env var: YOUR_API_KEY
What problem does it solve?
When agents chain MCP tools, failures look like vague model errors with no ordered record of which step broke.
Who is it for?
Solo builders running multi-tool MCP agents in Claude Code or Cursor who need trace-level debugging without Datadog-scale setup.
Skip if: Teams that only need browser or frontend RUM, or builders not using MCP at all.
What do I get? / Deliverables
After registration you can walk through MCP agent steps in sequence and narrow debugging to a specific tool or handoff.
- Ordered step view of MCP agent workflows
- Actionable pinpointing of failing tool steps
- Repeatable inspection setup in local agent config
Recommended MCP Servers
Journey fit
Observability belongs on the Operate shelf because it matters after agents are wired up and running in real sessions, not only during initial build. Monitoring is the canonical subphase for trace inspection, step logs, and workflow visibility across MCP tool invocations.
How it compares
MCP-native trace inspector, not a general-purpose log aggregator or agent skill markdown playbook.
Common Questions / FAQ
Who is MCP Agent Trace Inspector for?
It is for developers shipping MCP-based agents who need to see each step of a workflow when something goes wrong.
When should I use MCP Agent Trace Inspector?
Use it during operate and iterate cycles when agent sessions fail intermittently or you are validating a new MCP tool graph before launch.
How do I add MCP Agent Trace Inspector to my agent?
Install the npm package mcp-agent-trace-inspector, set YOUR_API_KEY in your MCP server env, and register the stdio server in your host’s MCP configuration.