BrainerceGet checkout prefill data
Returns the customer contact details and default address in the shape the checkout forms expect, so a signed-in shopper skips retyping them. The default address is the one flagged default, else the first.
For /api/vc/{connectionId}/* routes the connectionId (vc_*) is in the URL path — not a header. Live-mode requests must also send a matching Origin header.
In: header
Path Parameters
Sales channel ID (vc_*), the canonical salesChannelId. connectionId is the deprecated name of the same value and is still the literal path segment.
Header Parameters
Origin of the storefront page making the call, for example https://shop.example.com. Required: a request with no Origin header is refused with 403. On a LIVE channel its host must equal the channel's registered domain (or one of its subdomains) or match an allowed origin. A TEST channel with no domain accepts any origin; once a domain is set it is matched as on LIVE.
Customer token as Bearer <token>, returned by customers/login, customers/register or the OAuth callback. Expires after 7 days. It is a customer token, never an API key.
Version of the calling SDK (the Brainerce SDK sends it automatically). Informational: it is recorded on the channel and never changes the response.
curl -X GET "https://api.brainerce.com/api/vc/string/customers/me/checkout-prefill" \ -H "origin: string" \ -H "authorization: string" \ -H "X-SDK-Version: string"{
"customer": {
"id": "clcus_abc123",
"email": "[email protected]",
"firstName": "Jane",
"lastName": "Doe",
"phone": "+14155552671",
"emailVerified": true,
"birthMonth": 4,
"birthDay": 17
},
"defaultAddress": {
"id": "addr_abc123",
"label": "Home",
"firstName": "Jane",
"lastName": "Doe",
"company": "Acme Inc",
"line1": "123 Main St",
"line2": "Apt 4B",
"city": "San Francisco",
"region": "CA",
"postalCode": "94103",
"country": "US",
"phone": "+14155552671",
"isDefault": true,
"createdAt": "2025-08-01T09:00:00.000Z",
"updatedAt": "2026-05-12T11:24:08.000Z"
},
"shippingAddress": {
"email": "[email protected]",
"firstName": "string",
"lastName": "string",
"company": "string",
"line1": "string",
"line2": "string",
"city": "string",
"region": "string",
"postalCode": "string",
"country": "US",
"phone": "string"
}
}{
"statusCode": 401,
"code": "UNAUTHORIZED",
"message": "Invalid or expired credential",
"timestamp": "2026-08-23T10:15:00.000Z",
"path": "/api/vc/{connectionId}/customers/me/checkout-prefill"
}{
"statusCode": 403,
"code": "INSUFFICIENT_SCOPE",
"message": "API key does not have the required scope: products:write",
"timestamp": "2026-08-23T10:15:00.000Z",
"path": "/api/vc/{connectionId}/customers/me/checkout-prefill"
}{
"statusCode": 404,
"code": "RESOURCE_NOT_FOUND",
"message": "Resource not found",
"timestamp": "2026-08-23T10:15:00.000Z",
"path": "/api/vc/{connectionId}/customers/me/checkout-prefill"
}{
"statusCode": 429,
"code": "RATE_LIMITED",
"message": "Too many requests",
"details": {
"retryAfterSeconds": 12
},
"timestamp": "2026-08-23T10:15:00.000Z",
"path": "/api/vc/{connectionId}/customers/me/checkout-prefill"
}