01
Retain the result.
The seller generates the response and stores it encrypted before submitting settlement. Each operation is bound to its original request and payment.
ENCRYPTED RESULT STORAGETHE DELIVERY LAYER FOR PAID AGENTS
Paid once.
Within reach.
A dropped connection shouldn’t mean a lost result.
evidence.contact runs 402Mob, a toolkit that helps x402 sellers retain paid results, verify settlement, and give AI agents a secure way to recover what they bought.
The Base invoice report checks a transaction against an expected USDC recipient and amount, then returns a clear payment verdict for 0.02 USDC. Agents can call it directly through the paid MCP tool.
x402 v2 / Base / USDC
THE PAYMENT IS ONLY HALF THE STORY
Your agent paid for an answer.
It should have a way back to it.
When an API request times out, a payment can succeed while its response never arrives. 402Mob keeps the result and its payment record together, so buyers can recover retained content without starting another purchase.
FROM REQUEST TO RECOVERY
One purchase. A durable record.
02
Confirm the payment.
Match the authorization and USDC transfer on Base before releasing content. An uncertain outcome stays pending until chain evidence resolves it.
SETTLEMENT RECONCILIATION03
Find your way back.
The buyer signs a fresh wallet challenge to retrieve a retained result. Recovery authorizes a read of the existing purchase, without submitting a new payment.
WALLET-AUTHENTICATED RECOVERYBUILT FOR SELLERS. READY FOR AGENTS.
Make delivery part
of the transaction.
Connect a paid resource, keep an operation journal, and offer recovery for the results you retain.