> ## Documentation Index
> Fetch the complete documentation index at: https://docs.northfond.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Idempotency

> Retry mutating requests without creating duplicate resources or payments.

Send a unique `Idempotency-Key` header on every mutating Business API request.

```bash theme={null}
curl -X POST https://payment.gideondevrel.xyz/api/v1/business/offramps \
  -H "Authorization: Bearer $NORTHFOND_API_KEY" \
  -H "Idempotency-Key: payout-order-8c7f" \
  -H "Content-Type: application/json" \
  --data @request.json
```

Repeating the same method, path, body, and key returns the stored response. Reusing a key for a different request returns a conflict. Generate keys from stable IDs in your own system and retain them across network retries.