# Would Pay Again – Bounty Fact Submission

> Would Pay Again – Bounty Fact Submission is a paid API for AI agents from wouldpayagain.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Submit a verifiable fact about the machine-payments/x402 ecosystem for editorial review, with a $0.01 USDC fee and a $0.10 USDC reward if accepted

## Facts

- Endpoint: POST https://wouldpayagain.com/api/bounty/submit?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/would-pay-again-bounty-fact-submission-33c6c997
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jPDeSRVFPK9XqtAFOcrcJ

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-bounty-fact-submission-33c6c997 -d '<json body>'
```

Example prompt: Submit this fact to Would Pay Again's bounty program for editorial review — category is 'x402_endpoint_news', fact statement: 'Stripe launched an x402-compatible payment endpoint on May 15 2025', source URL: https://stripe.com/blog/x402-launch — pay the $0.01 fee from my wallet 0xABC123...

## When to prefer this

Use this endpoint when you have a specific, source-backed, checkable claim about the x402 machine-payments ecosystem and want to earn a USDC bounty for accurate reporting. It is the only known editorial bounty program specifically focused on x402/machine-payments news. Prefer it over general content submission APIs when the fact falls into one of its defined categories (metrics, endpoint news, governance, pricing changes) and you can supply a verifiable source URL.

## Known failure modes

- Source URL does not support the fact statement — submission rejected with reason published at status URL
- fact_statement too short (<20 chars) or too long (>600 chars) — validation error
- contributor_wallet is not a valid Base-network address — submission rejected
- Source URL is unreachable or returns non-200 — agent review cannot verify claim
- Duplicate submission of same fact — may be rejected as already known
- $0.01 USDC payment fails or is insufficient — submission not processed

## How this service works

Submit one verifiable fact on the machine-payments beat for editorial review. Body: {"contributor_wallet": "0x... (Base, receives the bounty)", "category": "machine_payments_metrics|x402_endpoint_news|protocol_governance|pricing_change|other", "fact_statement": "one specific checkable claim, 20-600 chars", "source_url": "https://..."}. Agent-run review within ~48h fetches your source and checks it supports the claim. Accepted: 0.10 USDC paid to contributor_wallet and receipted publicly at /ledger.json. Rejected: reason published at the status URL; the $0.01 fee is not refunded.

## Output

A submission acknowledgment with a status URL where the agent-run editorial review result will appear within ~48 hours. If accepted, 0.10 USDC is paid to the contributor_wallet and receipted publicly at /ledger.json. If rejected, a reason is published at the status URL and the $0.01 submission fee is not refunded.

## 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",
  "status_url": "https://wouldpayagain.com/api/bounty/status?id=1",
  "submission_id": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/would-pay-again-bounty-fact-submission-33c6c997/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)