curl --request GET \
  --url https://api.e-invoice.be/api/lookup

{
  "queryMetadata": {
    "identifierScheme": "<string>",
    "identifierValue": "<string>",
    "smlDomain": "<string>",
    "timestamp": "<string>",
    "version": "<string>"
  },
  "status": "<string>",
  "errors": [
    "<string>"
  ],
  "dnsInfo": {
    "status": "<string>",
    "smlHostname": "<string>",
    "dnsRecords": [
      {
        "ip": "<string>"
      }
    ],
    "smpHostname": "smp.e-invoice.be",
    "error": "DNS lookup failed: no such domain",
    "lookupMethod": "naptr"
  },
  "serviceMetadata": {
    "status": "<string>",
    "queryTimeMs": 123,
    "endpoints": [
      {
        "status": "<string>",
        "url": "<string>",
        "documentTypes": [
          {
            "scheme": "<string>",
            "value": "<string>"
          }
        ],
        "processes": [
          {
            "processId": {
              "scheme": "<string>",
              "value": "<string>"
            },
            "endpoints": [
              {
                "transportProfile": "<string>",
                "address": "<string>",
                "serviceActivationDate": "2022-01-01T00:00:00Z",
                "serviceExpirationDate": "2025-01-01T00:00:00Z",
                "serviceDescription": "Company XYZ's AP service",
                "technicalContactUrl": "https://support.e-invoice.be",
                "technicalInformationUrl": "https://api.e-invoice.be",
                "certificate": {
                  "status": "<string>",
                  "details": {},
                  "error": "Certificate expired"
                }
              }
            ]
          }
        ],
        "error": "Connection timeout"
      }
    ],
    "error": "Service unavailable"
  },
  "businessCard": {
    "status": "<string>",
    "entities": [
      {
        "name": "Example Corporation Ltd",
        "countryCode": "NO",
        "registrationDate": "2021-06-15T00:00:00Z",
        "additionalInformation": [
          "VAT: BE1018265814",
          "Organization number: 1018.265.814"
        ]
      }
    ],
    "queryTimeMs": 123,
    "error": "Business card not found"
  },
  "certificates": [
    {
      "status": "<string>",
      "details": {},
      "error": "Certificate expired"
    }
  ],
  "executionTimeMs": 123
}