# German Tax Number Pattern Validator (Steuernummer)

> German Tax Number Pattern Validator (Steuernummer) is a paid API for AI agents from kihustle.tech, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Validates and extracts German Steuernummer (tax number) patterns from a given text string

## Facts

- Endpoint: POST https://kihustle.tech/api/v1/de-steuernummer-pattern
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/german-tax-number-pattern-validator-steuernummer-8e589560
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jEroT_7tFUqQz4ksaRKvf

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 german-tax-number-pattern-validator-steuernummer-8e589560 -d '<json body>'
```

Example prompt: Can you check whether '123/456/78901' is a valid German Steuernummer pattern? Just scan the text and tell me if it matches the correct format.

## When to prefer this

Use this endpoint when you need to validate or detect German Steuernummer (personal/business tax numbers) specifically — not German VAT IDs (Umsatzsteuer-ID) or other EU tax identifiers. Best suited for processing German invoices, freelancer onboarding forms, or document compliance checks where the Steuernummer format must be verified.

## Known failure modes

- Empty or missing text field returns an error or unmatched result
- Non-German tax number formats (e.g. VAT ID, IBAN) may cause false negatives
- Malformed JSON input returns a processing error
- Edge-case Steuernummer regional formats may not be recognized
- Service may return generic 'processed/success' response without explicit match detail

## How this service works

Kostenlose Guides, Solo-Playbooks und Artikel zu KI, Automation und Side Hustles — für Menschen, die mit echten Systemen online Einkommen aufbauen wollen. Transparent finanziert über faire Affiliate-Links.

## Output

Returns a JSON object indicating whether the submitted text contains a valid German Steuernummer pattern, with a result status field and success indicator. Likely includes whether the pattern was matched and possibly the extracted tax number string.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "processed",
  "status": "success"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/german-tax-number-pattern-validator-steuernummer-8e589560/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kihustle.tech](https://www.zero.xyz/host/kihustle.tech/llms.txt)