An API that can't double-pay.

# In your dashboard: Payments → New link
# Amount, description, done. Share it anywhere:

https://pay.kestopay.com/l/…

# Every payment shows up in your dashboard,
# tied to the link that created it.

curl https://api.kestopay.com/v1/payment-intents \
  -H "Authorization: Bearer kp_test_…" \
  -H "Idempotency-Key: order-A-219" \
  -H "Content-Type: application/json" \
  -d '{
    "amount": "10.00",
    "description": "Order A-219",
    "merchant_order_id": "A-219"
  }'

# → { "id": "pi_…", "status": "CREATED", ... }

curl https://api.kestopay.com/v1/payouts \
  -H "Authorization: Bearer kp_test_…" \
  -H "Idempotency-Key: reward-8812" \
  -H "Content-Type: application/json" \
  -d '{
    "amount": "50.00",
    "recipient": { "type": "cashtag", "value": "$jane_d" }
  }'

# Same Idempotency-Key twice? You get the same payout back.
# It is never sent twice.