https://mcp.agentcard.sh/mcp with the user’s connection token (or a buy_token for org-owned accounts).
Behavior: destructive.
Not in the default
tools/list. It is still callable by exact name, and appears when the client sends the x-expert-tools: 1 header.What it does
Cancel a flight the user previously booked, and refund them. TWO STEPS, like checkout: FIRST call with confirm:false (or omitted) to get the refund QUOTE — the airline’s fare rules decide the refund (full, partial, or $0 for non-refundable fares); the booking service fee is NOT refunded. SHOW the user the exact refund amount and get an explicit yes. THEN, in a LATER message, call again with confirm:true to actually cancel + refund. Cancels the most recent booked flight by default; passpnr to target a specific one.