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Halowerk Business Resolve
x402
Halowerk Business Resolve is a paid API for AI agents from tools.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-15).
Merges and cross-validates company identity data (name, legal form, address, VAT ID, registry number, contacts, authorized persons) from user input and EU VIES, reporting the source and any conflicts per field.
Price / call$0.006
Success—
StatusUnknown
How this service works
Fuehrt Name, Rechtsform, Anschrift, Umsatzsteuer-Identifikationsnummer, Registernummer, Kontakt und vertretungsberechtigte Personen aus drei Quellen zusammen: der Eingabe, der Pruefung gegen das europaeische Mehrwertsteuer-Informationssystem und den Pflichtangaben der eigenen Seite. Meldet je Feld die Herkunft und weist Widersprueche zwischen den Quellen aus.
Output
A merged company profile combining user-supplied data and VIES lookup results, with each field annotated by its source (user input, VIES, or mandatory legal imprint). Any discrepancies between sources are explicitly flagged, giving the agent a clear picture of data consistency and trustworthiness per field.
Example use cases
Supplier onboarding VAT check
“Before we onboard this supplier, can you resolve their business identity? Company name is Acme Logistics BV, address is Keizersgracht 1, 1015 Amsterdam, Netherlands, VAT ID NL123456789B01 — pull data from VIES and tell me if anything conflicts with what they've submitted.”
Invoice compliance verification
“I received an invoice from Schmidt & Partner GmbH, Hauptstraße 5, 80333 München, VAT ID DE987654321 — can you verify their details against the EU VAT register and report which fields match, which differ, and where each piece of info comes from?”
Cross-border contract due diligence
“We're signing a contract with a French company: Dupont SAS, 12 Rue de la Paix, 75001 Paris, VAT ID FR12345678901. Can you merge this with VIES data, identify who the authorized representatives are, and highlight any mismatches in name, address, or legal form?”
Technical details
Endpoint
POSThttps://tools.halowerk.com/v1/business/resolveWhen to prefer
Choose this endpoint when you need authoritative, source-attributed European business identity data — especially for VAT compliance, supplier onboarding, invoice verification, or contract due diligence. It is uniquely suited for detecting discrepancies between user-provided company data and the EU VIES registry, and for knowing which source each field comes from. Prefer it over a plain VAT format validator when you need full entity resolution across multiple data sources.
Side effects
- VAT ID not found in VIES — returns source-only data from user input with VIES fields empty
- Invalid VAT ID format — returns format validation error before VIES lookup
- VIES service temporarily unavailable — endpoint may return partial results or error indicating external service failure
- Country prefix mismatch between VAT ID and address — flagged as conflict
- Missing required fields — returns validation error specifying which fields are absent
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| name | string | |
| domain | string | |
| vat_id | string | USt-IdNr. mit Laenderpraefix |
| address | string | |
| country | string | |
| include_raw | boolean | |
| registration_number | string |
Tags
x402
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