Playground
Test the MPP payment flow through the MPP Gate control layer.
Facilitator URL
Point your MPP endpoints to this URL to sponsor gas fees
https://facilitator.mppgate.com
Agent
No agent registered
Wallet 0xefF8a2...D8eF67 is not registered. Payments will be co-signed freely.
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Weather API — Paid Endpoint
What happens
1
Agent calls weather API
2
Server returns 402 with payment challenge
3
Agent signs a $0.001 USDC transfer
4
MPP Gate checks budget → approved
5
Fee payer co-signs (sponsors gas)
6
Transaction broadcasts → server returns data
Console
Send a request to see the flow
Click a button on the left to start