Create a hosted checkout session. checkoutUrl + token are bearer secrets returned only on creation (hash-only at rest) — GET and idempotent replays return them as null. Persist the create response or mint a fresh session.

POST/v1/checkout/sessions

Authorization

AuthorizationBearer token · headerrequired

Public API key bearer token.

Query parameters

environmentstringrequired

merchantAccountIdstringrequired

Header parameters

Idempotency-Keystring

Required for production-safe retries on mutating routes. Reusing a key with a different request body returns 409.

min length 1

Request body

requiredapplication/json

modestring

Allowed:paymentsubscription

invoiceNumberstring

invoiceNumbersstring[]

min items 1

customerExternalIdstring

billingAccountIdstring

subscriptionExternalIdstring

collectionModestring

Allowed:manualautomatic

startAtstring<date-time>

lineItemsCheckoutSessionLineItemRequest[]

min items 1

Show properties

Array of CheckoutSessionLineItemRequest

priceIdstringrequired

quantityinteger

min 1

metadataMetadata

paymentRequestIdstring

expiresAtstring<date-time>

createdByRefstring

metadataMetadata

Responses

201Success

dataobjectrequired

requestIdstringrequired

400Bad request, including malformed JSON

errorobjectrequired

Show properties

codestringrequired

Allowed:bad_requestunauthorizedforbiddennot_foundconflictrate_limitedvalidation_failurenot_implementedinternal_error

messagestringrequired

requestIdstring

docsUrlstring

Deep link to the errors guide section for this code.

detailsobject

401Missing or invalid API key

errorobjectrequired

Show properties

codestringrequired

Allowed:bad_requestunauthorizedforbiddennot_foundconflictrate_limitedvalidation_failurenot_implementedinternal_error

messagestringrequired

requestIdstring

docsUrlstring

Deep link to the errors guide section for this code.

detailsobject

409Conflict, including idempotency body drift

errorobjectrequired

Show properties

codestringrequired

Allowed:bad_requestunauthorizedforbiddennot_foundconflictrate_limitedvalidation_failurenot_implementedinternal_error

messagestringrequired

requestIdstring

docsUrlstring

Deep link to the errors guide section for this code.

detailsobject

422Validation failed

errorobjectrequired

Show properties

codestringrequired

Allowed:bad_requestunauthorizedforbiddennot_foundconflictrate_limitedvalidation_failurenot_implementedinternal_error

messagestringrequired

requestIdstring

docsUrlstring

Deep link to the errors guide section for this code.

detailsobject

429API key rate limit exceeded

errorobjectrequired

Show properties

codestringrequired

Allowed:bad_requestunauthorizedforbiddennot_foundconflictrate_limitedvalidation_failurenot_implementedinternal_error

messagestringrequired

requestIdstring

docsUrlstring

Deep link to the errors guide section for this code.

detailsobject

defaultError

errorobjectrequired

Show properties

codestringrequired

Allowed:bad_requestunauthorizedforbiddennot_foundconflictrate_limitedvalidation_failurenot_implementedinternal_error

messagestringrequired

requestIdstring

docsUrlstring

Deep link to the errors guide section for this code.

detailsobject

Request

curl -X POST "https://api.vortex.nyc/v1/checkout/sessions?environment=string&merchantAccountId=string" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
  "mode": "payment",
  "invoiceNumber": "string",
  "invoiceNumbers": [
    "string"
  ],
  "customerExternalId": "string",
  "billingAccountId": "string",
  "subscriptionExternalId": "string",
  "collectionMode": "manual",
  "startAt": "2024-01-01T00:00:00Z",
  "lineItems": [
    {
      "priceId": "string",
      "quantity": 0,
      "metadata": {}
    }
  ],
  "paymentRequestId": "string",
  "expiresAt": "2024-01-01T00:00:00Z",
  "createdByRef": "string",
  "metadata": {}
}'

const response = await fetch("https://api.vortex.nyc/v1/checkout/sessions?environment=string&merchantAccountId=string", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_TOKEN",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
  "mode": "payment",
  "invoiceNumber": "string",
  "invoiceNumbers": [
    "string"
  ],
  "customerExternalId": "string",
  "billingAccountId": "string",
  "subscriptionExternalId": "string",
  "collectionMode": "manual",
  "startAt": "2024-01-01T00:00:00Z",
  "lineItems": [
    {
      "priceId": "string",
      "quantity": 0,
      "metadata": {}
    }
  ],
  "paymentRequestId": "string",
  "expiresAt": "2024-01-01T00:00:00Z",
  "createdByRef": "string",
  "metadata": {}
})
});

import requests

response = requests.post(
    "https://api.vortex.nyc/v1/checkout/sessions?environment=string&merchantAccountId=string",
    headers={
        "Authorization": "Bearer YOUR_TOKEN",
        "Content-Type": "application/json"
    },
    json={
  "mode": "payment",
  "invoiceNumber": "string",
  "invoiceNumbers": [
    "string"
  ],
  "customerExternalId": "string",
  "billingAccountId": "string",
  "subscriptionExternalId": "string",
  "collectionMode": "manual",
  "startAt": "2024-01-01T00:00:00Z",
  "lineItems": [
    {
      "priceId": "string",
      "quantity": 0,
      "metadata": {}
    }
  ],
  "paymentRequestId": "string",
  "expiresAt": "2024-01-01T00:00:00Z",
  "createdByRef": "string",
  "metadata": {}
},
)

Response

{
  "data": {},
  "requestId": "string"
}