Agentic payments protocol simulator
Visa TAP · Mastercard AP4M · Google AP2/UCP · OpenAI ACP · Amex ACE · x402
Simulate transactions across the six protocol layers of agentic commerce.
Select a scenario below to get started.
⌘ Quick reference
① SimulatorAnimate a full transaction step-by-step and watch actors and protocols activate in real time.
② Protocol stackSee which protocols are active in the selected scenario and understand each layer's role.
③ Run transactionStart the simulation — each step fires sequentially, lighting up actors and protocols as they engage.
④ View log entryClick any row in the transaction log to open its full detail — what happens, who acts, and the data payload.
⑤ Step detailRight-hand panel showing the selected step's actors, data exchange, and architectural significance. Use Prev / Next to navigate.
⑥ Swimlane viewOpens a visual map of the entire transaction across all actors — useful for presentations and walkthroughs.
⑦ SpeedDrag the slider to control playback pace — slow for learning, fast for live demos.
Scenario
TRANSACTION LOG
Click any step for details →
Press "Run transaction" to start the simulation
✓ Transaction complete
STEP DETAIL
Click any log entry to see what happens at that step — the actors involved, the data exchanged, and why it matters.