curl --request GET \
  --url https://api-sandbox.circle.com/v1/addressBook/vasps \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440000",
      "name": "Example VASP A"
    },
    {
      "id": "661f9511-f30c-52e5-b660-709766551111",
      "name": "Example VASP B"
    }
  ]
}