{"uid":"cap_T5dcayRhFKkAVUHmtirvT","slug":"would-pay-again-book-classified-ad-slot-2-e59168fa","name":"Would Pay Again – Book Classified Ad (Slot 2)","description":"A newsletter about the x402 machine-payments economy, sold over x402 itself. USDC on Base.","url":"https://wouldpayagain.com/api/ads/book/classified-2?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{}}}}},"responseSchema":{"type":"json","example":{"ok":true,"status":"pending_review","confirmed":true,"tearsheet":"https://wouldpayagain.com/api/ads/booking/6","booking_id":6,"settlement_tx":"0x…"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.4","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":"$0.4/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.4","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.4","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WjywPjDBAxOe6HzI0stIP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.4","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Books a classified ad placement in the 'Would Pay Again' newsletter (slot 2) about the x402 machine-payments economy, paying $0.40 USDC over x402 on Base.","exampleAgentPrompt":"Book a classified ad in the Would Pay Again newsletter — the x402/machine-payments one — using slot 2; the ad body should say 'PayKit: the fastest way to add x402 payments to your app. Try it free at paykit.dev.'","exampleUseCases":[{"title":"Promote x402 dev tool to newsletter readers","prompt":"Place a classified ad in Would Pay Again's next issue advertising my new x402 payment SDK — the ad copy should read: 'StreamPay SDK: add machine payments to any Node app in under 10 minutes. streampayhq.com'"},{"title":"Announce agentic wallet product launch","prompt":"Book classified slot 2 in the Would Pay Again newsletter to announce our agentic wallet launch — ad text: 'VaultAgent: the first self-custodial wallet built for AI agents. Open beta now at vaultagent.xyz'"},{"title":"Drive sign-ups for a micropayments course","prompt":"I want to advertise my new course on x402 micropayments in the Would Pay Again newsletter — ad copy: 'Learn to build with x402 in a weekend. Enroll at x402school.com — first 100 students get 50% off.'"}],"resultDescription":"Returns a JSON object with a booking ID, a pending_review status, a confirmed boolean, a tearsheet URL (e.g. https://wouldpayagain.com/api/ads/booking/6), and the on-chain settlement transaction hash from the USDC payment on Base.","failureModes":["Payment not included or insufficient USDC amount — x402 payment header missing or underfunded","Invalid body structure — missing required fields (type, method, bodyType, body) returns validation error","Ad body content rejected during editorial review — booking created but status remains pending_review","Network or settlement failure on Base — transaction hash not returned, booking may not be confirmed","Slot already booked — classified-2 slot may be unavailable for the requested period"],"whenToPreferThis":"Choose this endpoint when you want to reach the audience of the Would Pay Again newsletter — people specifically interested in the x402 protocol and machine/AI-agent payments economy — and you want to pay for the ad atomically with USDC on Base via x402 without any fiat billing setup. It's ideal for promoting crypto-native tools, x402-compatible services, or agentic payment products to a self-selected technical and entrepreneurial audience.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T21:41:00.635Z","isFirstParty":false,"canonicalSlug":"would-pay-again-book-classified-ad-slot-2-e59168fa"}