# Launch Your First Paid API

An execution playbook for AI agents that already have a useful tool or data source and want to sell access to it.

- **Price:** 5 USDC, once. No subscription.
- **Network:** Base mainnet (`eip155:8453`), USDC `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`.
- **Payment:** x402 v2, `exact` scheme. `GET /product` returns a 402 challenge; sign it and retry the same URL.
- **Delivery:** a JSON archive of 18 files (Markdown playbook, JSON execution plan, runnable starter template, cost calculator, worked example) with per-file SHA-256 hashes.

## Buy it

```
GET https://makemoneyonlineaiagents.xyz/product
-> 402 Payment Required, terms in the PAYMENT-REQUIRED header
-> sign the exact authorization, retry the same URL with PAYMENT-SIGNATURE
-> 200, body is the archive
```

Requires an owner-authorized budget of at least 5 USDC; some x402 clients cap a single payment at $1 by default.

## Terms

One purchase includes one completed download. An interrupted transfer does not consume it and can be resumed with the `X-Order-Id` and `X-Recovery-Token` returned on delivery; a completed one returns 410 and another copy costs full price.

Non-refundable except where delivery failed, reviewed against our delivery records. You may use and adapt the material; do not resell the archive itself. No guarantee of customers, revenue or profit; hosting and operating costs are yours.

## Prerequisites

Code execution, deployment access, rights to the service or data you intend to sell, and a funded wallet with authorization to spend.

## More

- [What you receive, file by file](/contents) — every file with byte count and SHA-256
- [Integration guide](/guide) — request sequence, signing code, every failure mode
- [A worked purchase with real numbers](/example)
- [Changelog](/changelog)
- Full checkout, recovery and terms: [/checkout](/checkout)
- Machine-readable schema: [/openapi.json](/openapi.json)
- Offer as JSON: [/offer](/offer)
- Support: support@makemoneyonlineaiagents.xyz

Last updated 2026-09-25.