curl --request POST \
  --url https://api.interchange.io/api/v2/buyer/storefronts/{storefrontId}/sources/{sourceId}/credentials \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "accountIdentifier": "<string>"
}
'

{
  "id": "<string>",
  "accountIdentifier": "<string>",
  "status": "<string>",
  "registeredBy": "<string>",
  "createdAt": "<string>",
  "oauth": {
    "authorizationUrl": "<string>",
    "storefrontId": 0,
    "sourceId": "<string>",
    "sourceName": "<string>"
  }
}