curl -X POST https://checkout.noxpay.io/v2/naas/crossramp_checkout \
-H "api-key: <key>" \
-H "X-Signature: <signed-body-signature>" \
-H "Content-Type: application/json" \
-d '{
"timestamp": "2026-05-19T14:30:00Z",
"correlation_id": "a1b2c3d4-e5f6-4789-abcd-000000000001",
"payload": {
"currency_code": "USDT_ERC20",
"amount_fiat": 500.00,
"webhook": "https://yourserver.com/webhook",
"return_url": "https://yourserver.com/thank-you",
"payer_document": "12345678900"
}
}'
import requests
# sign_envelope defined in NaaS Setup
body, sig = sign_envelope({
"currency_code": "USDT_ERC20",
"amount_fiat": 500.00,
"webhook": "https://yourserver.com/webhook",
"return_url": "https://yourserver.com/thank-you",
"payer_document": "12345678900",
}, "a1b2c3d4-e5f6-4789-abcd-000000000001")
response = requests.post(
"https://checkout.noxpay.io/v2/naas/crossramp_checkout",
headers={"api-key": "<key>", "X-Signature": sig, "Content-Type": "application/json"},
data=body,
)
print(response.json())
// signEnvelope defined in NaaS Setup
const { body, signature } = signEnvelope({
currency_code: "USDT_ERC20",
amount_fiat: 500.00,
webhook: "https://yourserver.com/webhook",
return_url: "https://yourserver.com/thank-you",
payer_document: "12345678900",
}, "a1b2c3d4-e5f6-4789-abcd-000000000001");
const response = await fetch("https://checkout.noxpay.io/v2/naas/crossramp_checkout", {
method: "POST",
headers: { "api-key": "<key>", "X-Signature": signature, "Content-Type": "application/json" },
body,
});
const data = await response.json();
{ "link": "https://checkout.noxpay.io/e2e/NOXabc123" }
NaaS — Crossramp Checkout
Create Checkout
POST /v2/naas/crossramp_checkout — create a checkout link for a sub-merchant.
curl -X POST https://checkout.noxpay.io/v2/naas/crossramp_checkout \
-H "api-key: <key>" \
-H "X-Signature: <signed-body-signature>" \
-H "Content-Type: application/json" \
-d '{
"timestamp": "2026-05-19T14:30:00Z",
"correlation_id": "a1b2c3d4-e5f6-4789-abcd-000000000001",
"payload": {
"currency_code": "USDT_ERC20",
"amount_fiat": 500.00,
"webhook": "https://yourserver.com/webhook",
"return_url": "https://yourserver.com/thank-you",
"payer_document": "12345678900"
}
}'
import requests
# sign_envelope defined in NaaS Setup
body, sig = sign_envelope({
"currency_code": "USDT_ERC20",
"amount_fiat": 500.00,
"webhook": "https://yourserver.com/webhook",
"return_url": "https://yourserver.com/thank-you",
"payer_document": "12345678900",
}, "a1b2c3d4-e5f6-4789-abcd-000000000001")
response = requests.post(
"https://checkout.noxpay.io/v2/naas/crossramp_checkout",
headers={"api-key": "<key>", "X-Signature": sig, "Content-Type": "application/json"},
data=body,
)
print(response.json())
// signEnvelope defined in NaaS Setup
const { body, signature } = signEnvelope({
currency_code: "USDT_ERC20",
amount_fiat: 500.00,
webhook: "https://yourserver.com/webhook",
return_url: "https://yourserver.com/thank-you",
payer_document: "12345678900",
}, "a1b2c3d4-e5f6-4789-abcd-000000000001");
const response = await fetch("https://checkout.noxpay.io/v2/naas/crossramp_checkout", {
method: "POST",
headers: { "api-key": "<key>", "X-Signature": signature, "Content-Type": "application/json" },
body,
});
const data = await response.json();
{ "link": "https://checkout.noxpay.io/e2e/NOXabc123" }
Creates a crypto-to-BRL checkout link scoped to the sub-merchant identified by
*If neither Response
Redirect the sub-merchant’s customer to this URL.
correlation_id. A split process is automatically created to transfer the configured portion to the master merchant once the checkout completes.
Payload fields
| Field | Type | Required | Description |
|---|---|---|---|
currency_code | string | Yes | Crypto asset to receive (e.g. USDT_ERC20, BTC) |
amount_fiat | number | No* | Fixed BRL amount the payer must send |
amount_crypto | number | No* | Fixed crypto amount (alternative to amount_fiat) |
webhook | string | No | URL that receives status updates |
return_url | string | No | URL the payer is redirected to after completing payment |
payer_document | string | No | CPF or CNPJ of the payer (digits only) |
payer_name | string | No | Payer name, used when creating a new client record |
amount_fiat nor amount_crypto is provided, the checkout is open-amount.
Response 200 OK
{ "link": "https://checkout.noxpay.io/e2e/NOXabc123" }
curl -X POST https://checkout.noxpay.io/v2/naas/crossramp_checkout \
-H "api-key: <key>" \
-H "X-Signature: <signed-body-signature>" \
-H "Content-Type: application/json" \
-d '{
"timestamp": "2026-05-19T14:30:00Z",
"correlation_id": "a1b2c3d4-e5f6-4789-abcd-000000000001",
"payload": {
"currency_code": "USDT_ERC20",
"amount_fiat": 500.00,
"webhook": "https://yourserver.com/webhook",
"return_url": "https://yourserver.com/thank-you",
"payer_document": "12345678900"
}
}'
import requests
# sign_envelope defined in NaaS Setup
body, sig = sign_envelope({
"currency_code": "USDT_ERC20",
"amount_fiat": 500.00,
"webhook": "https://yourserver.com/webhook",
"return_url": "https://yourserver.com/thank-you",
"payer_document": "12345678900",
}, "a1b2c3d4-e5f6-4789-abcd-000000000001")
response = requests.post(
"https://checkout.noxpay.io/v2/naas/crossramp_checkout",
headers={"api-key": "<key>", "X-Signature": sig, "Content-Type": "application/json"},
data=body,
)
print(response.json())
// signEnvelope defined in NaaS Setup
const { body, signature } = signEnvelope({
currency_code: "USDT_ERC20",
amount_fiat: 500.00,
webhook: "https://yourserver.com/webhook",
return_url: "https://yourserver.com/thank-you",
payer_document: "12345678900",
}, "a1b2c3d4-e5f6-4789-abcd-000000000001");
const response = await fetch("https://checkout.noxpay.io/v2/naas/crossramp_checkout", {
method: "POST",
headers: { "api-key": "<key>", "X-Signature": signature, "Content-Type": "application/json" },
body,
});
const data = await response.json();
{ "link": "https://checkout.noxpay.io/e2e/NOXabc123" }