Zambo guide
What Is AP2 Agent Payments Protocol
AP2 is Google’s open draft for letting AI agents pay with a recorded mandate, and it sits next to x402, the rail Zambo already uses for paid tool calls.
Add Zambo to your AIWhat AP2 is in plain words
x402 is an HTTP pattern for presenting payment instructions when a request needs payment before a service returns its protected response. A compatible client can read the challenge and decide whether to pay.
It describes the payment step, not the quality or completion of the requested work.
AP2 vs x402: one table
AP2 is Google’s open draft for letting AI agents pay with a recorded mandate, and it sits next to x402, the rail Zambo already uses for paid tool calls.
Check the current request terms and wallet response before proceeding. Payment, tool execution and the saved work receipt are distinct records.
What a receipt adds to any agent payment
The payment challenge describes the request and the amount due. A separate work receipt records the tool call and its returned status; it should not be treated as a wallet settlement confirmation.
Open the saved call at the receipt checker to inspect its recorded fields.
Pay for one call to see the flow
- The client requests a protected resource.
- The server returns payment instructions instead of the resource.
- The wallet reviews and authorizes the payment.
- The client retries the request and inspects the response.
The payment response and the returned work should be checked separately.
Try this prompt
Start with a small request. Change the details to match your task.
Use Zambo to explain the payment step before it happens, then show the receipt for the completed request.
FAQ
What is what is AP2 agent payments protocol?
AP2 is Google’s open draft for letting AI agents pay with a recorded mandate, and it sits next to x402, the rail Zambo already uses for paid tool calls.
What does a Zambo receipt show?
It shows the saved record and its available status. It does not prove that the output is correct or complete.
How do I try this with Zambo?
Check the payment request in your wallet, approve only a request you intend to pay, then review the resulting receipt.
Try it with your AI
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