{"uid":"cap_7MC0TkHhvlBYYWi_M7av4","slug":"would-pay-again-book-sponsor-slot-3-9f6b91bd","name":"Would Pay Again – Book Sponsor Slot 3","description":"A newsletter about the x402 machine-payments economy, sold over x402 itself. USDC on Base.","url":"https://wouldpayagain.com/api/ads/book/sponsor-3?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":"1.5","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":"$1.5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"1.5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"1.5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_w3lxfDMBNwmlJ4egtK3zZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1.5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Books a paid advertising sponsorship slot (slot #3) in the Would Pay Again newsletter about the x402 machine-payments economy, paying $1.50 USDC via x402 on Base.","exampleAgentPrompt":"Book a sponsorship in the Would Pay Again newsletter — it's the x402 machine-payments one — and submit our ad content as a JSON POST body so it goes into pending review for slot 3.","exampleUseCases":[{"title":"Crypto startup newsletter ad booking","prompt":"I want to advertise our new x402-enabled API in the Would Pay Again newsletter — go ahead and book slot 3 with our campaign details as the body, I'm fine paying the $1.50 USDC."},{"title":"DeFi tool promotion in payments media","prompt":"We're launching a USDC payments SDK next week — can you book us a sponsored slot in Would Pay Again's newsletter (slot 3) and submit our product description as the ad body?"},{"title":"Blockchain wallet sponsorship placement","prompt":"Reserve ad slot 3 in the Would Pay Again machine-payments newsletter for our Base wallet app and send over the sponsorship details — pay the $1.50 USDC fee via x402."}],"resultDescription":"Returns a JSON object confirming the booking with: ok (boolean), status ('pending_review'), confirmed (boolean), booking_id (integer), a tearsheet URL for the booked ad, and the on-chain settlement transaction hash on Base.","failureModes":["Payment of $1.50 USDC not received or x402 payment header missing — request rejected with 402","Slot 3 already fully booked — booking fails or returns conflict error","Invalid body format or missing required fields — returns validation error","On-chain settlement transaction fails — confirmed may be false and booking not finalized","Network or API downtime — 5xx error returned"],"whenToPreferThis":"Choose this endpoint when you specifically want to purchase advertising sponsorship slot #3 in the Would Pay Again newsletter, targeting an audience interested in x402 machine payments and USDC/Base blockchain. Ideal for crypto projects, AI agent tooling companies, or payment infrastructure providers wanting to reach an audience of x402 adopters. This is the only newsletter endpoint that processes real micropayments via x402 for advertising placement.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T21:41:00.637Z","isFirstParty":false,"canonicalSlug":"would-pay-again-book-sponsor-slot-3-9f6b91bd"}