Quickstart

This guide walks you through creating your first crypto payment via Hosted Checkout — from API key to a confirmed test payment, in about 5 minutes.

1. Get a test API key

   In the ParaSta Dashboard → Developers → API Keys, copy your Secret test key (starts with sk_test_).

   Caution

   Treat secret keys like passwords. Never commit them, never expose them in client code, and rotate them in the Dashboard if leaked.

2. Create a Checkout Session

   amount is in the smallest unit of the currency — USDT has 6 decimals, so 10000000 means 10 USDT.

   cURL

   curl https://api.parasta.io/v1/checkout/sessions \
     -H "Authorization: Bearer sk_test_..." \
     -H "Content-Type: application/json" \
     -d '{
       "line_items": [{ "name": "T-shirt", "amount": 10000000, "currency": "USDT" }],
       "success_url": "https://your-site.com/success",
       "cancel_url": "https://your-site.com/cancel"
     }'

   Node.js

   const session = await parasta.checkout.sessions.create({
     line_items: [{ name: 'T-shirt', amount: 10_000_000, currency: 'USDT' }],
     success_url: 'https://your-site.com/success',
     cancel_url: 'https://your-site.com/cancel',
   });

   Python

   session = parasta.checkout.Session.create(
     line_items=[{'name': 'T-shirt', 'amount': 10_000_000, 'currency': 'USDT'}],
     success_url='https://your-site.com/success',
     cancel_url='https://your-site.com/cancel',
   )

   The response contains url. Redirect your customer to that URL to complete the payment.

3. Listen for the webhook

   When payment confirms on-chain, ParaSta sends a checkout.session.completed webhook to your server. The webhook is the reliable signal for fulfillment — never rely on the redirect alone.

   See Webhooks → Overview for setup.

Try it without writing code

In the Dashboard’s API Playground you can fire test requests against your sandbox account without leaving the browser.

Next steps

GuideHosted Checkout

Full integration: lifecycle, URL placeholders, optional parameters.

GuideQR Payments

For in-store, POS, and kiosks — customer scans a QR with their wallet.

GuideSettlement options

Receive in coin, auto-convert to fiat (USD, KRW, IDR), or split between recipients.