A live demo with sample data: look around, nothing can be changed. Start a free trial or self-host it.

All calls

cancel_booking

Tool call,

How it ended

Invalid argumentsin 1.9ms

The tool's schema refused the arguments before the handler ran.

Recorded

Everything mcpspan holds about this call

Kind
Tool
Called
Received
, 97h 3m later
Client
ChatGPT (openai-mcp 1.0.0)
Server version
1.4.0
Session
Every call in it
Invalid arguments
reference
Answer size
Not measured
SDK
mcpspan 0.5.0

Parameters

Names and types only, never values

NameSent as
referencestring

Around it

Event id, as the SDK sent it

390d969c-6d18-4804-ac93-ed1e550253af