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Would Pay Again Ad Booking
x402
Would Pay Again Ad Booking is a paid API for AI agents from wouldpayagain.com, paid per call via x402, $0.2/call, status down (last checked 2026-10-13).
Book an advertisement slot in the Would Pay Again newsletter about the x402 machine-payments economy, paying $0.20 USDC via x402 on Base.
Price / call$0.2
Success—
StatusDown
How this service works
A newsletter about the x402 machine-payments economy, sold over x402 itself. USDC on Base.
Output
Returns a JSON object confirming the booking with fields: ok (boolean), status (e.g. 'pending_review'), confirmed (boolean), booking_id (integer), and settlement_tx (the on-chain transaction hash on Base for the $0.20 USDC payment).
Example use cases
Promote a crypto payments product
“I want to advertise my new USDC payment SDK in the Would Pay Again newsletter — can you book an ad slot for me and pay the 20-cent USDC fee?”
Sponsor machine-payments newsletter for startup
“Our startup is launching a Base-native wallet and we want to reach the x402 audience — book us an ad in Would Pay Again and handle the USDC payment on Base.”
Automated ad booking for agent-driven campaign
“For my ongoing campaign targeting the machine-payments community, book a new ad slot in Would Pay Again each week, paying $0.20 USDC each time.”
Technical details
Endpoint
POSThttps://wouldpayagain.com/api/ads/book?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you want to place a paid advertisement specifically in the Would Pay Again newsletter targeting readers interested in x402 machine-payments and USDC micropayments, and you are able to pay $0.20 USDC on Base via the x402 protocol. Prefer this over generic ad networks when your audience is crypto-native and specifically interested in programmable payments.
Side effects
- Insufficient USDC balance — x402 payment fails and booking is not created
- Invalid body type or missing required fields — API returns a validation error
- Ad content rejected after pending_review — booking_id issued but ad not published
- Network or blockchain congestion causes settlement_tx delay or timeout
- Duplicate booking attempts may create separate booking IDs with separate charges
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"status": "pending_review",
"confirmed": true,
"booking_id": 1,
"settlement_tx": "0x…"
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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