{"uid":"cap_nqUds7vIpcY868qOYTzlF","slug":"would-pay-again-book-sponsor-card-ad-1-issue-fa5f9d96","name":"Would Pay Again – Book Sponsor Card Ad (1 Issue)","description":"Confirm and pay for a RESERVED Sponsor card newsletter ad (1 issue, $0.5 USDC). Requires the matching \"reservation_code\" from POST /api/ads/reserve (free, first) — paying without one, or paying a different SKU than reserved, is not honored as a booking. Body: {\"reservation_code\": \"...\"}. Product docs: GET /api/ads (free).","url":"https://wouldpayagain.com/api/ads/book/sponsor-1","method":"POST","headers":{},"bodySchema":{"type":"object","$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":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.5","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_7_aD5jP0p6v1BTSdjViGQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.5","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Confirms and pays ($0.5 USDC) for a pre-reserved Sponsor card newsletter ad slot in one issue of the Would Pay Again newsletter, using a reservation code obtained from the free reserve endpoint.","exampleAgentPrompt":"I've already reserved a sponsor card slot in the Would Pay Again newsletter — my reservation code is RES-ABC123. Go ahead and confirm the booking and pay the $0.5 USDC to lock it in.","exampleUseCases":[{"title":"Locking in a newsletter ad campaign","prompt":"I reserved a sponsor card ad in Would Pay Again earlier — the reservation code is RES-XYZ789. Please finalize the booking and pay the 50-cent USDC fee to secure my slot."},{"title":"Automating ad purchases for a product launch","prompt":"We just got a reservation code LAUNCH-001 for a sponsor spot in the Would Pay Again x402 newsletter. Can you complete the payment and confirm the booking so our ad goes in the next issue?"},{"title":"Agent-driven B2B advertising workflow","prompt":"My team reserved a Would Pay Again sponsor card using reservation code CAMP-2024A. Confirm the booking by paying the $0.5 USDC now so we're locked in for that issue."}],"resultDescription":"A booking confirmation indicating the sponsor card ad reservation has been accepted and payment of $0.5 USDC has been processed, locking in the ad placement for one issue of the Would Pay Again newsletter.","failureModes":["Missing or invalid reservation_code returns an error — payment without a valid code is not honored","Reservation code from a different SKU (e.g. Classified) is rejected — must match the Sponsor card SKU","Expired reservation_code (reservation window lapsed) results in a booking failure","Insufficient USDC balance or x402 payment failure prevents confirmation","Attempting to pay without first calling POST /api/ads/reserve returns an error"],"whenToPreferThis":"Use this endpoint as the second step in the two-step Would Pay Again ad booking flow, after obtaining a reservation_code via POST /api/ads/reserve. This is specifically for the Sponsor card ad tier ($0.5 USDC) — use the sibling Classified endpoint for the $0.2 USDC tier. Ideal for agents or workflows that want to advertise to the machine-payments/x402 developer audience via a crypto-native newsletter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:41:24.989Z","isFirstParty":false}