Payment infrastructure from PIX to stablecoins.
Astron Pay connects PIX to on-chain settlement. Receive and send in reais, convert to stablecoin and credit your customer's wallet, with one API, a locked quote and an auditable ledger.
REST API · Signed webhooks · Sandbox environment
Numbers
Running in production.
R$ 0 million
Transacted on the platform
0%
Uptime SLA
0s
Locked quote validity
0
Supported networks
Product
One integration, both directions.
Payin and payout run through the same quote engine, the same dashboard and the same ledger. You choose the direction on every order.
Payin: reais to crypto
An incoming PIX becomes stablecoin in your customer's wallet, with a locked quote and on-chain settlement.
- Quote locked for 30 seconds before the order
- Copy-and-paste PIX code to show your customer
- Payment confirmation in real time
- End-user KYC built into the API
Payout: crypto to reais
A stablecoin deposit becomes a PIX transfer to your customer, with the same locked quote and the same ledger.
- On-chain deposit address on every order
- PIX sent to your customer's key
- Quote locked for 30 seconds before the order
- Webhook on every status change
Integration
One quote, one order, one webhook.
Key-and-secret authentication, predictable responses and documentation written by people who have integrated PSPs. The sandbox is fully isolated from production.
- Authentication with x-api-key and x-api-secret
- An explicit quote before every order, no pricing surprises
- Signed webhooks for every status change
- Double-entry ledger, reconcilable order by order
curl -X POST https://api.astronpay.co/api/v1/quote/payin \
-H "x-api-key: $API_KEY" \
-H "x-api-secret: $API_SECRET" \
-H "Content-Type: application/json" \
-d '{
"receiverId": "rcv_01hxy...",
"amountBrl": 1000,
"targetToken": "USDC"
}'
# 200 OK — cotação travada por 30s
{
"quoteId": "qt_01hxy...",
"amountBrl": 1000,
"amountToken": "195.69",
"targetToken": "USDC",
"expiresAt": "2026-04-17T18:30:30Z"
}How it works
From PIX to the wallet. And back.
Both flows are symmetric and run through the same quote engine, ledger and webhooks.
amountBrl
0
amountToken
—
- Quote
- 2Order
- 3Payment
- 4Settlement
Networks and coins
Stablecoins on the networks your customers already use.
USDC and USDT, with the network chosen per order, no new wallet, no manual bridging.
Supported networks
- Solana
- Ethereum
- Polygon
- Tron
Supported coins
- USDC
- USDT
Platform
KYC, webhooks and reconciliation on the same API.
receiver
rcv_01hxy...
FAQ
Frequently asked questions.
Start with PIX. Grow into stablecoins.
Create your account and integrate in the sandbox today.