Introduction

ParaSta API · v1

Build crypto-native payments and digital-asset products.

Accept stablecoin payments on Polygon, Ethereum, and Solana — settle in coin or fiat (USD, KRW, IDR). Private chains and custom payment tokens also supported. Plus the full Platform API for KYC, asset connection, transfers, and exchange.

5 minQuickstart

Create your first Hosted Checkout session and confirm a test payment.

PaymentsAccept your first payment

End-to-end production walkthrough — Checkout, redirect, verify, webhook.

WebhooksWebhooks overview

Sign verification, retries, and idempotency for reliable fulfillment.

ReferenceAPI Reference

Every endpoint, parameter, and response — auto-generated from OpenAPI.

Two API surfaces

ParaSta exposes two distinct APIs. Most integrators only need the first.

Surface	What it does	Start here
Payments API	Accept crypto payments (USDT, USDC, ETH, SOL) on Polygon, Ethereum, Solana via Hosted Checkout or QR. Settle in coin or fiat (USD, KRW, IDR).	Quickstart
Platform API	KYC, asset connection (banks, securities, exchanges, wallets), transfers, charges, exchange. Originally built for the ParaSta consumer app, exposed for partners.	Platform overview

Base URL

https://api.parasta.io

All endpoints are versioned under /v1. See Versioning.

Conventions

All requests and responses are JSON.
Amounts are integers in the smallest unit of the currency. USDT uses 6 decimals — 1000000 means 1 USDT. See Currency.
Timestamps are ISO 8601 in UTC.
IDs are prefixed with the object type:

pi_Paymentcs_Checkout Sessionqrs_QR Sessionre_Refundevt_Webhook Eventwe_Webhook Endpoint