# Clash of Coins Pricing

Machine-readable pricing reference for agents comparing checkout options.

```json
{
  "version": 1,
  "service": "Clash of Coins Checkout",
  "currency": "USD",
  "paymentCurrency": "USDC",
  "canonicalCatalog": "https://x402.clashofcoins.com/catalog",
  "discoveryResources": "https://x402.clashofcoins.com/discovery/resources",
  "finalPriceAuthority": "quote_or_402_payment_challenge",
  "retrySemantics": {
    "x402": {
      "unpaidStatus": 402,
      "paymentHeader": "PAYMENT-SIGNATURE",
      "preserveRequestBody": true
    },
    "mpp": {
      "unpaidStatus": 402,
      "paymentHeader": "Authorization: Payment",
      "preserveRequestBody": true
    }
  },
  "items": [
    {
      "id": "sale:391",
      "title": "Sale #391",
      "minUsd": "9",
      "maxUsd": "9",
      "currency": "USD"
    },
    {
      "id": "sale:392",
      "title": "Sale #392",
      "minUsd": "90",
      "maxUsd": "90",
      "currency": "USD"
    },
    {
      "id": "sale:393",
      "title": "Sale #393",
      "minUsd": "900",
      "maxUsd": "900",
      "currency": "USD"
    },
    {
      "id": "sale:394",
      "title": "Sale #394",
      "minUsd": "270",
      "maxUsd": "270",
      "currency": "USD"
    }
  ]
}
```

- Canonical catalog: https://x402.clashofcoins.com/catalog
- Discovery resources: https://x402.clashofcoins.com/discovery/resources
- Quote endpoints should be treated as final price authority before buy.

| Source | Title | Min USD | Max USD |
| --- | --- | --- | --- |
| sale:391 | Sale #391 | 9 | 9 |
| sale:392 | Sale #392 | 90 | 90 |
| sale:393 | Sale #393 | 900 | 900 |
| sale:394 | Sale #394 | 270 | 270 |

## Notes

- Values are discovery-time snapshots and can change by offer lifecycle.
- For x402 and MPP, final payable amount is the challenge/quote amount at transaction time.
- For personalized shop offers, provide exactly one recipient: nickname or wallet address.