# SignalDesk AI VAT Extractor

> SignalDesk AI VAT Extractor is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).

Computes net amount and VAT tax from a gross amount and a supplied VAT rate percentage

## Facts

- Endpoint: POST https://x402-agent.kariguetoazul.workers.dev/api/finance/vat-extract?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-vat-extractor-8fa6332e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nJF8v0g-wzqGHOo0fO84D

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 signaldesk-ai-vat-extractor-8fa6332e -d '<json body>'
```

Example prompt: I have a gross amount of €123 and the VAT rate is 23% — can you break that down into the net price and the tax portion for me?

## When to prefer this

Choose this endpoint when you need a quick, deterministic arithmetic decomposition of a VAT-inclusive gross amount into net and tax components using a rate you already know. It is not a tax rate lookup service and does not validate or recommend rates — use it when the rate is already determined and you need the math done reliably at $0.001 per call.

## Known failure modes

- Missing gross or rate_percent inputs returns a validation error
- Negative values rejected by schema minimum of 0
- Floating-point rounding may produce minor precision differences vs accounting systems
- Extremely large values near the 1,000,000,000,000 maximum may hit edge cases
- Non-numeric inputs cause schema validation failure

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

Returns a JSON object with three fields: net (pre-tax amount), tax (VAT portion), and gross (the original total), along with a notice clarifying this is a pure arithmetic calculation and not tax advice.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "gross": {
   "type": "number",
   "maximum": 1000000000000,
   "minimum": 0,
   "description": "Amount in one consistent currency; floating-point calculation, not an accounting ledger."
  },
  "rate_percent": {
   "type": "number",
   "maximum": 1000,
   "minimum": 0,
   "description": "Supplied percentage rate, not a fetched or recommended rate."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "net": 100,
  "tax": 23,
  "gross": 123,
  "notice": "Calculation from supplied inputs only; no tax, investment or lending advice."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-vat-extractor-8fa6332e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)