{"uid":"cap_I3mUTwmMrfSlNyGi3tUTV","slug":"unykorn-genesis402-credit-purchase-25-usdc-bd2f8e82","name":"UnyKorn Genesis402 Credit Purchase ($25 USDC)","description":"Pay-per-call endpoints over x402 v2 and MPP (the \"Payment\" HTTP auth scheme, method usdc). Includes counterparty compliance checks: /report/counterparty (company + registered parents + UN/OFAC/EU/UK sanctions, signed and verifiable), /screen/name and /screen/entity. Free: /health, /.well-known/x402, /receipts, /prove/keys, /prove/stats.","url":"https://twin.unykorn.org/credits/25?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"params":{"type":"object","properties":{}}}},"responseSchema":{"type":"json","example":{"ok":true,"type":"credits","header":"X-Genesis402-Credit","receipt":{"tx_hash":"0x<64hex>","amount_usd":25,"receipt_id":"g402-<16hex>"},"credit_id":"cr_<12hex>","balance_url":"/credits/balance","balance_usd":"25.000000","credit_token":"g402c_<43 chars, shown once>"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_60KdhW3IgyK12iEnNdBmj","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Purchases $25 USDC worth of prepaid credits on the Genesis402 rail, returning a one-time credit token and balance URL for subsequent pay-per-call API usage.","exampleAgentPrompt":"I need to fund my Genesis402 account with $25 USDC so I can start making pay-per-call requests — can you purchase a credit bundle and give me the credit token?","exampleUseCases":[{"title":"Bootstrap agent with API credits","prompt":"My AI agent needs to start making compliance and sanctions checks on the Genesis402 rail — please buy the $25 USDC credit bundle so I have a token ready to use."},{"title":"Replenish depleted credit balance","prompt":"My Genesis402 credit balance is running low, can you top it up by purchasing another $25 USDC credit pack and give me the new credit token and balance URL?"},{"title":"Onboard to x402 pay-per-call platform","prompt":"I want to try out the UnyKorn pay-per-call APIs like counterparty screening — first I need to buy $25 of credits with USDC, can you do that and save the token for me?"}],"resultDescription":"Returns a JSON object containing: ok (boolean), type ('credits'), the credit token (g402c_ prefixed, shown only once), a credit_id, the current balance in USD, a balance_url for checking future balance, and a receipt with tx_hash, amount_usd ($25), and receipt_id. The credit token must be stored immediately as it is not retrievable again.","failureModes":["Payment rejected due to insufficient USDC balance — returns payment error","Invalid or missing x402/MPP payment header — 402 Payment Required response","USDC transaction not confirmed on-chain — payment timeout or pending state","Duplicate payment detected within short window — idempotency conflict","Network/service unavailability — 503 or connection error","Sanctions/compliance hold on paying address — payment blocked"],"whenToPreferThis":"Use this endpoint when you need to pre-fund a Genesis402 credit balance before making pay-per-call requests to UnyKorn services (sanctions screening, counterparty compliance, geocoding, earthquake data, etc.). Prefer this over per-call payment if you plan to make multiple calls and want to avoid repeated x402 payment overhead. This is the entry point for the Genesis402 credit system — required before using any credit-gated endpoint on twin.unykorn.org.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:36:13.951Z","isFirstParty":false,"canonicalSlug":"unykorn-genesis402-credit-purchase-25-usdc-bd2f8e82"}