# Free sample: Scope lock teaser

_Acceptance snippet only. Full in/out scope + change-order + sign-off: POST /v0/scope-lock → 0.012 USDC_

## Demo criteria (truncated)

```
(done = all true)
- AC1: Write a 1-page x402 micropay discovery brief for agent freelancers with 5 action bullets and cited sources…
```

## Upgrade — full scope lock
```http
POST https://x402.devvizion.com/v0/scope-lock
Content-Type: application/json
{ "brief":"…", "reward":12, "days":3, "deliverable":"markdown brief + sources", "platform":"taskmarket" }
```
Pay with x402 on Base USDC · unpaid → HTTP 402 · 0.012 USDC
payTo 0xE79e7fa7Ce7259C46F9B127b837d2907Bb036F95