# Would Pay Again - Sponsor 2 Ad Booking

> Would Pay Again - Sponsor 2 Ad Booking is a paid API for AI agents from wouldpayagain.com, paid per call via x402, $1/call, status unknown (last checked 2026-10-29).

Books a sponsored ad placement in the 'Sponsor 2' slot of the Would Pay Again newsletter, paying $1 USDC via x402 machine payments on Base.

## Facts

- Endpoint: POST https://wouldpayagain.com/api/ads/book/sponsor-2?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/would-pay-again-sponsor-2-ad-booking-79a7c4c9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JFt9Sg-JIbc_kWIOma_B5

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability would-pay-again-sponsor-2-ad-booking-79a7c4c9 -d '<json body>'
```

Example prompt: Book the Sponsor 2 ad slot in the Would Pay Again newsletter — here's the ad body as JSON, pay the $1 USDC via x402 and send me back the booking confirmation and tearsheet link.

## When to prefer this

Choose this endpoint when you need to programmatically purchase the 'Sponsor 2' ad slot in the Would Pay Again newsletter and can pay $1 USDC on Base via the x402 protocol. It is ideal for AI agents or automated workflows targeting the machine-payments and x402 community with minimal friction, paying directly on-chain without a manual checkout flow.

## Known failure modes

- Payment not settled on-chain — x402 payment verification fails, booking not created
- Invalid or missing required body fields — 400-level error returned
- Sponsor slot already booked for the requested period — conflict error
- x402 facilitator unreachable — payment cannot be processed
- Malformed bodyType or method enum value — schema validation error

## How this service works

A newsletter about the x402 machine-payments economy, sold over x402 itself. USDC on Base.

## Output

Returns a JSON object with a boolean ok flag, a status field (e.g. 'pending_review'), a confirmed boolean, a tearsheet URL for the ad booking, a numeric booking_id, and the on-chain settlement transaction hash (settlement_tx) on Base.

## Request schema (JSON Schema)

```json
{
 "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": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "status": "pending_review",
  "confirmed": true,
  "tearsheet": "https://wouldpayagain.com/api/ads/booking/6",
  "booking_id": 6,
  "settlement_tx": "0x…"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/would-pay-again-sponsor-2-ad-booking-79a7c4c9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from wouldpayagain.com](https://www.zero.xyz/host/wouldpayagain.com/llms.txt)