# Austrian Company Firmenbuch Lookup

> Austrian Company Firmenbuch Lookup is a paid API for AI agents from api.strale.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-09).

Look up official Austrian company registration data from the Firmenbuch by Firmenbuchnummer or fuzzy company name

## Facts

- Endpoint: POST https://api.strale.io/x402/austrian-company-data?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-strale-io-9621b0ee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Uojm_7BjeqOTunyhlShQ4

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability api-strale-io-9621b0ee -d '<json body>'
```

Example prompt: Can you look up the official Firmenbuch registration details for Red Bull GmbH in Austria — I need their VAT number, address, and business type? Their Firmenbuchnummer is FN 150913f.

## When to prefer this

Use this endpoint when you specifically need Austrian company data from the official Firmenbuch register, either by Firmenbuchnummer (e.g. FN 150913f) or a fuzzy company name like 'Red Bull' or 'Erste Group'. Prefer this over generic business data APIs when Austrian jurisdiction accuracy and official VAT/registration numbers are required, such as for KYC, supplier onboarding, or invoice validation workflows.

## Known failure modes

- Company not found by FN number or fuzzy name — status field indicates no match
- Invalid FN number format returns an error
- Ambiguous company name matches multiple entries — may return partial or best-match result
- Network or upstream Firmenbuch unavailability causes timeout
- Missing both fn_number and company_name fields causes input validation error

## How this service works

Look up Austrian company data from the Firmenbuch. Accepts Firmenbuchnummer (e.g. FN 150913f) or fuzzy company name. SQS: 96/100.

## Output

Returns a JSON object with the company's official name, registration number, EU VAT number, registered address, business type, jurisdiction (AT), and status as recorded in the Austrian Firmenbuch.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "fn_number": {
   "type": "string",
   "description": "Firmenbuchnummer (e.g. FN 150913f). If you only have a company name, use the company_name field."
  },
  "company_name": {
   "type": "string",
   "description": "Company name for fuzzy search (e.g. Red Bull, OMV, Erste Group)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "status": {
  "type": "string"
 },
 "address": {
  "type": "string"
 },
 "vat_number": {
  "type": "string",
  "description": "EU VAT number (auto-derived from national ID when possible)"
 },
 "company_name": {
  "type": "string"
 },
 "jurisdiction": {
  "type": "string",
  "description": "ISO 3166-1 alpha-2 country code"
 },
 "business_type": {
  "type": "string"
 },
 "registration_number": {
  "type": "string"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-strale-io-9621b0ee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)