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# API Reference — Testing Payment Flow Security

## Tools

### Payment Testing

| Command | Description |
|---|---|
| `agent.js tamper` | Price |
| `agent.js coupon` | Coupon |
| `agent.js replay` | Replay |
| `agent.js currency` | Currency |

### Agent Script

```bash
node agent.js tamper --url <value> --param <value> --value <value>
node agent.js coupon --url <value> --codes <value>
node agent.js replay --request <value>
node agent.js currency --url <value> --source <value> --dest <value>
```
