Onboard a customer

curl -X POST https://sandbox.core.linkio.world/api/customers/onboard \
  -H "X-BRIDGE-API-Key: $BRIDGE_API_KEY" \
  -H "API-Version: 2026-10-29-atlas" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "retail",
    "details": {
      "first_name": "Ada",
      "last_name": "Obi",
      "email": "ada@example.com",
      "phone": "+2348012345678"
    }
  }'

curl -X POST https://sandbox.core.linkio.world/api/customers/onboard \
  -H "X-BRIDGE-API-Key: $BRIDGE_API_KEY" \
  -H "API-Version: 2026-10-29-atlas" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "business",
    "details": {
      "business_name": "Kola Traders Ltd",
      "business_email": "finance@kolatraders.com",
      "business_phone": "+233201234567",
      "registered_address": "12 Oxford Street, Accra",
      "registered_country": "GH"
    }
  }'

{
  "id": "cus_4hT9pL2mQx8VnR3tY7wZ1cB5dE",
  "type": "retail",
  "name": "Ada Obi",
  "email": "ada@example.com",
  "phone": "+2348012345678",
  "address": null,
  "country": null,
  "metadata": {}
}

{
  "error": {
    "type": "validation_error",
    "code": "validation_failed",
    "message": "Request validation failed",
    "request_id": "req_3VnR7tY1wZ4cB6dE8fK2mQ9xLp",
    "status": 422,
    "errors": [
      { "field": "details.email", "message": "Invalid email address" }
    ]
  }
}