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SignalDesk AI VAT Calculator
x402
SignalDesk AI VAT Calculator 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 VAT tax amount and gross price from a net amount and a caller-supplied VAT rate percentage
Price / call$0.001
Success—
StatusUnknown
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
A JSON object containing the original net amount, the computed tax amount (net × rate/100), and the gross amount (net + tax), along with a disclaimer notice that the result is a mathematical calculation from supplied inputs only and does not constitute tax, investment, or lending advice.
Example use cases
Invoice line-item VAT calculation
“I'm building an invoice and need to add 23% VAT to a net amount of 850. What's the tax amount and the total gross I should show the customer?”
E-commerce checkout tax display
“A product costs 49.99 net and I need to show the customer the VAT at 19% and the final price including tax — can you work that out?”
Bulk pricing quote with VAT
“We're quoting a client for a service worth 12500 net. Apply a 15% VAT rate and tell me the tax portion and the gross total to put on the quote.”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/finance/vat-add?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, stateless VAT/tax addition computation and already know the applicable rate — it does not look up jurisdiction-specific rates or provide tax advice. Prefer it for invoice generation, pricing display, or quoting workflows where the rate is externally determined and you just need the arithmetic performed as a paid micro-service call.
Side effects
- net or rate_percent missing or null — likely returns a 4xx validation error
- rate_percent exceeds 1000 or is negative — rejected by schema validation
- net exceeds 1,000,000,000,000 — rejected by schema maximum
- Floating-point precision issues for very large or very small values — result may have minor rounding artifacts
- Payment not included or rejected — returns HTTP 402 requiring x402 micropayment of $0.001 USDC
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| net | number | Amount in one consistent currency; floating-point calculation, not an accounting ledger. |
| rate_percent | number | Supplied percentage rate, not a fetched or recommended rate. |
Output
Schema · Response
{
"type": "json",
"example": {
"net": 100,
"tax": 23,
"gross": 123,
"notice": "Calculation from supplied inputs only; no tax, investment or lending advice."
}
}Tags
x402
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