{"uid":"cap_oaos_pcG0OmJ1-qq3fGci","slug":"cortexcloud-base-nonce-generator-c7c4ac0a","name":"CortexCloud Base Nonce Generator","description":"OpenAI-compatible AI and data API for agents. Pay per call in USDC on Base via x402 — no API keys, no subscriptions, no lock-in.","url":"https://api.cortexcloud.org/x402/v1/data/base/nonce","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"object","format":"application/json","example":{"nonce":0,"address":"0x..."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vyJPQWo45t6QBXn_ey5PJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a cryptographic nonce on the Base blockchain for use in x402 payment authorization flows","exampleAgentPrompt":"Generate a fresh nonce on the Base network so I can authorize my next USDC payment through the x402 protocol before calling the CortexCloud AI endpoint.","exampleUseCases":[{"title":"Agent payment flow initialization","prompt":"I need a new nonce from the Base blockchain to set up my x402 payment header before my AI agent makes its next API call — can you fetch one now?"},{"title":"USDC micropayment authorization","prompt":"Before I send my 0.001 USDC payment over x402 on Base, generate a nonce so the transaction can be properly signed and authorized."},{"title":"Replay-attack prevention token","prompt":"Get me a one-time cryptographic nonce from CortexCloud's Base endpoint so my payment can't be replayed or reused in the x402 protocol flow."}],"resultDescription":"Returns a cryptographic nonce value tied to the Base blockchain, used as a one-time token to construct a valid x402 payment authorization header for subsequent API calls to CortexCloud endpoints.","failureModes":["Network timeout contacting Base RPC — returns 5xx error","Invalid or malformed POST body — returns 400 bad request","Base network congestion causing delayed nonce retrieval","Nonce already used or expired if consumed too slowly","Payment gateway unavailable — returns 503"],"whenToPreferThis":"Use this endpoint when you need to initiate an x402 payment flow on the Base network and require a fresh cryptographic nonce before constructing your payment authorization header. Prefer this over generic nonce generators when you are specifically paying CortexCloud endpoints with USDC via the x402 protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:45:28.407Z","isFirstParty":false}