{"data":{"slug":"would-pay-again-ad-slot-booking","name":"Would Pay Again — Ad Slot Booking","description":"Would Pay Again is a newsletter about the machine-payments (x402) economy, produced by paying x402 endpoints. It sells its own ad inventory the same way: two products (classified, sponsor card), 1-4 issue bookings, one fixed-price x402 route per SKU. Storefront and live availability at GET /api/ads (free).","base_url":"https://wouldpayagain.com","website_url":"https://wouldpayagain.com","category":"Content","endpoint_count":9,"min_price_usd":0.2,"uptime_24h":100,"source":"submitted","status":"online","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-10-22T15:01:16.445Z","last_success_at":"2026-10-15T15:01:16.445Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-15T15:01:16.445Z","created_at":"2026-08-31T09:06:21.626Z","uptime":{"24h":100,"7d":100,"30d":100,"90d":100,"coverage":{"24h":{"daysCovered":1,"checkCount":57},"7d":{"daysCovered":7,"checkCount":597},"30d":{"daysCovered":30,"checkCount":2665},"90d":{"daysCovered":46,"checkCount":4067}}},"avg_response_time_ms":244,"total_checks":2743,"networks":["BSE"],"networks_caip2":["eip155:8453"],"asset":"USDC","endpoints":[{"id":"8639a14c-af71-431f-9e18-d843fc12a38b","method":"POST","path":"/api/ads/book/classified-1","description":"Confirm and pay for a RESERVED Classified newsletter ad (1 issue, $0.2 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).","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.392Z","variable_amount":false,"min_price_usd":0.2,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"200000","price_usd":"0.2000000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]},{"id":"71a1c3dc-0efd-498d-a1e5-048b2303e7c4","method":"POST","path":"/api/ads/book/classified-2","description":"Confirm and pay for a RESERVED Classified newsletter ad (2 issues, $0.4 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).","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.410Z","variable_amount":false,"min_price_usd":0.4,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"400000","price_usd":"0.4000000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]},{"id":"63680243-8415-4997-a284-76a3af3d4d40","method":"POST","path":"/api/ads/book/classified-3","description":"Confirm and pay for a RESERVED Classified newsletter ad (3 issues, $0.6 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).","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.341Z","variable_amount":false,"min_price_usd":0.6,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"600000","price_usd":"0.6000000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]},{"id":"0721e525-b7a4-4fa3-8daa-ebd3a7efacf5","method":"POST","path":"/api/ads/book/classified-4","description":"Confirm and pay for a RESERVED Classified newsletter ad (4 issues, $0.7 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).","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.300Z","variable_amount":false,"min_price_usd":0.7,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"700000","price_usd":"0.7000000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]},{"id":"1de5f2f2-bf22-429b-a77c-f618111575d6","method":"POST","path":"/api/ads/book/sponsor-1","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).","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.422Z","variable_amount":false,"min_price_usd":0.5,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"500000","price_usd":"0.5000000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]},{"id":"3b9f8754-3ea9-4730-af40-0af1894056eb","method":"POST","path":"/api/ads/book/sponsor-2","description":"Confirm and pay for a RESERVED Sponsor card newsletter ad (2 issues, $1 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).","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.276Z","variable_amount":false,"min_price_usd":1,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1000000","price_usd":"1.0000000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]},{"id":"2800ad27-3168-4561-9d9a-29df327137ba","method":"POST","path":"/api/ads/book/sponsor-3","description":"Confirm and pay for a RESERVED Sponsor card newsletter ad (3 issues, $1.5 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).","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.370Z","variable_amount":false,"min_price_usd":1.5,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1500000","price_usd":"1.5000000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]},{"id":"a9ec9fdc-72b5-4d52-b407-16c043208aed","method":"POST","path":"/api/ads/book/sponsor-4","description":"Confirm and pay for a RESERVED Sponsor card newsletter ad (4 issues, $1.75 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).","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.285Z","variable_amount":false,"min_price_usd":1.75,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1750000","price_usd":"1.7500000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]},{"id":"12c1abe0-a887-42c5-b65e-16f99afd8082","method":"POST","path":"/api/sponsor/request","description":"Confirm a sponsored review AFTER approval. Requires a \"confirmation_code\" from an approved inquiry (see POST /api/sponsor/inquire, free, first) -- paying without a valid code is not honored as a sponsorship and will need a refund. Body: {\"confirmation_code\": \"...\"}.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-08-31T09:06:21.626Z","last_seen_at":"2026-10-15T15:01:16.315Z","variable_amount":false,"min_price_usd":25,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"25000000","price_usd":"25.0000000000","pay_to":"0x0828D14c01e5429fB72e751F3a754331A26cE998","max_timeout_seconds":300}]}],"assessment":{"updated_at":"2026-10-15T14:33:03.784Z","input_hash":"e351f67b317430d6ab14847915ac49a003e0085ffb02a92f6f704ed6b33741e8","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":100,"7d":100,"30d":100,"90d":100},"response_p95_ms":296,"avg_response_ms":245,"last_checked_at":"2026-10-15T14:29:15.226Z","consecutive_failures":0,"total_checks":2741},"compliance":{"grade":"A","passed":14,"total":14,"checks":[{"id":"payload_captured","label":"402 payload captured","pass":true},{"id":"accepts_present","label":"accepts[] array present","pass":true},{"id":"payto_recoverable","label":"payTo address recoverable","pass":true},{"id":"payto_conformant","label":"payTo at accepts[0].payTo (conformant shape)","pass":true},{"id":"payto_shape","label":"payTo is a valid on-chain address","pass":true},{"id":"price_present","label":"atomic price declared","pass":true},{"id":"price_sane","label":"atomic price in a sane range","pass":true},{"id":"asset_declared","label":"asset (token) address declared","pass":true},{"id":"network_caip2","label":"network resolves to CAIP-2","pass":true},{"id":"scheme_declared","label":"payment scheme declared","pass":true},{"id":"transport_https","label":"served over HTTPS","pass":true},{"id":"x402_version_current","label":"declares the current x402 version (2)","pass":true},{"id":"eip712_domain_extra","label":"EIP-712 domain parameters present on every EVM entry","pass":true},{"id":"version_channel_coherent","label":"x402 v2 envelope delivered in the payment-required header","pass":true}],"pay_to_source":"payTo","pay_to_location":"accept","staleness":{"probe_failing":false,"last_success_at":"2026-10-15T15:01:16.445Z","envelope_captured_at":"2026-08-31T09:07:01.466Z"}},"site":{"homepage":true,"openapi":true,"pricing":true,"llms_txt":false,"robots":true,"terms":true,"checked_at":"2026-10-15T14:33:03.076Z"},"domain":{"age_days":87,"registrar":"Porkbun LLC","free_host":false,"created_date":"2026-07-18T10:53:07.000Z","checked_at":"2026-10-13T13:13:03.492Z"},"economics":{"price_usd":0.2,"price_atomic":"200000","model":"tiered","category_percentile":66,"stability":1,"price_max_usd":25,"category_percentile_max":90,"endpoint_count":9,"distinct_price_count":9},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":3.913,"tx_count_30d":92,"unique_buyers_30d":15,"last_settlement_at":"2026-10-15T10:18:47Z","top_buyer_share_30d":0.6261180679785332,"top_3_buyers_share_30d":0.8714541272680808,"concentrated_volume":false,"trend_7d_vs_30d":0.8115804461319412,"shared_payout":false,"shared_with":0,"measured_networks":["eip155:8453"],"first_settlement_at":"2026-08-12T16:55:25Z","volume_usd_all_time":4.8,"tx_count_all_time":126,"median_settlement_usd_30d":0.01,"max_settlement_usd_30d":1.75,"settled_via":["payAI"],"settled_via_detail":[{"id":"payAI","volume_usd_30d":3.913,"tx_count_30d":92}],"shared_with_services":[],"pro_quota_share":1,"caveat":"Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.","all_time_caveat":"All-time is floored at the start of our harvest window, not the service full history."}}},"provenance":{"license":"CC-BY-4.0","attribution_required":true,"attribution":"Data: x402-list.com (CC BY 4.0)","cite_as":"https://x402-list.com/services/would-pay-again-ad-slot-booking","source":"https://x402-list.com"}}