{"uid":"cap_rbshgfEW0gDC-ExZIqp-u","slug":"agentpay-x402-facilitator-usdc-payment-on-base-l2-3b56d84f","name":"AgentPay x402 Facilitator - USDC Payment on Base L2","description":"Initiates an atomic x402 USDC payment from payer to payee on Base L2. Settlement is on-chain. Flat fee of $0.02 deducted per transaction. Supports optional partner_id for revenue sharing.","url":"https://api.relai.fi/relay/1780278044437/pay","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.020000","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.020000/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_aYl9-Sv6DTgWrUT1taARp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Initiates an atomic on-chain USDC payment from payer to payee on Base L2 via the x402 protocol, with a flat $0.02 fee per transaction.","exampleAgentPrompt":"Send 5 USDC from my wallet to 0xPayeeAddress on Base L2 right now — use the x402 facilitator and include partner ID 'mypartner123' for revenue sharing.","exampleUseCases":[{"title":"Pay per API call automatically","prompt":"Every time I use that premium data API, automatically send the exact USDC amount to their wallet on Base L2 using the x402 facilitator — I want each call paid atomically so there's no billing hassle."},{"title":"Settle contractor invoice in USDC","prompt":"I just approved the invoice from my freelance designer — send them 250 USDC on Base L2 via x402 right now and give me the transaction hash so I can record it in my books."},{"title":"Agent-to-agent micropayment workflow","prompt":"My research agent needs to pay the data-fetching agent 0.50 USDC on Base for each batch of results it delivers — set up the x402 payment so it fires atomically every time a batch comes through."}],"resultDescription":"Returns an on-chain settlement confirmation including the transaction hash for the USDC transfer on Base L2, confirming the atomic payment was executed with a $0.02 fee deducted.","failureModes":["Insufficient USDC balance in payer wallet — payment rejected","Invalid payer or payee address format — 400 error","Network congestion on Base L2 causing delayed settlement","Missing required payment fields — validation error","Unauthorized or unrecognized partner_id — may result in revenue share failure","Double-spend or replay attempt rejected by on-chain logic"],"whenToPreferThis":"Choose this endpoint when you need atomic, on-chain USDC settlement on Base L2 using the x402 payment protocol — especially for agent-to-agent micropayments, API monetization, or pay-per-call workflows. Prefer this over off-chain or custodial payment APIs when finality and blockchain settlement are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:49:27.363Z","isFirstParty":false}