# MoneyMaker x402 Seller Cheatsheet

> MoneyMaker x402 Seller Cheatsheet is a paid API for AI agents from moneymaker-x402.monie98-8b9.workers.dev, paid per call via x402, $5/call, status unknown (last checked 2026-09-13).

Returns a cheatsheet of tips and instructions for selling content via the x402 HTTP payment protocol on Base using USDC.

## Facts

- Endpoint: GET https://moneymaker-x402.monie98-8b9.workers.dev/x402-seller-cheatsheet
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/moneymaker-x402-seller-cheatsheet-be2af0ef
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MKmgNiSTL1BFQ8sjLy-f1

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 moneymaker-x402-seller-cheatsheet-be2af0ef
```

Example prompt: Pull up the x402 seller cheatsheet so I can see the step-by-step instructions for setting up a paid endpoint that accepts USDC on Base — I want to understand the payment flow and what I need to implement.

## When to prefer this

Choose this endpoint when you need a concise, authoritative reference for implementing the x402 seller-side payment protocol on Base using USDC — especially when building or debugging a Cloudflare Worker that gates content behind HTTP 402 micropayments. It is a paid cheatsheet itself, making it a live demonstration of the x402 pattern in addition to documentation.

## Known failure modes

- 402 Payment Required if USDC payment authorization is missing or invalid — agent must authorize exact USDC amount to the payTo address via facilitator then retry
- Payment amount mismatch causes rejection — must send exactly $5 USDC
- Facilitator unavailable may block payment settlement
- Malformed or missing payment header returns 402 with no content
- Network timeout on Base RPC during payment verification

## How this service works

Public x402 storefront on Base. Call paid GET routes; on 402 authorize Exact USDC to payTo via facilitator, then retry. Tip jar: GET|POST /tip ($0.10 Exact USDC). Paid email: moneymakerx402@email35.com via Email35 ($0.01) — docs at GET /paid-email.

## Output

Returns a cheatsheet document (JSON or raw text) containing seller-focused instructions for implementing the x402 HTTP payment protocol: how to respond with 402, how to specify payTo addresses, how to configure a USDC facilitator on Base, and how to validate client payment authorization before delivering content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "enum": [
    "json",
    "raw"
   ],
   "type": "string",
   "description": "Optional response format hint (ignored by server; present for agent input schema)."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/moneymaker-x402-seller-cheatsheet-be2af0ef/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from moneymaker-x402.monie98-8b9.workers.dev](https://www.zero.xyz/host/moneymaker-x402.monie98-8b9.workers.dev/llms.txt)