# Coockies.ai Sales Tax Calculator

> Coockies.ai Sales Tax Calculator is a paid API for AI agents from coockies-ai.vercel.app, paid per call via x402, $0.186778/call, status unknown (last checked 2026-10-12).

Calculates sales tax for a given transaction or location via a pay-per-call API on the Base blockchain

## Facts

- Endpoint: POST https://coockies-ai.vercel.app/api/sales-tax-calculator?utm_source=zero.xyz
- Price: $0.186778/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coockies-ai-sales-tax-calculator-164f04dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5U6jBh-8jk7HAyXgz0xEJ

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 coockies-ai-sales-tax-calculator-164f04dc -d '<json body>'
```

Example prompt: Can you calculate the sales tax on a $150 order being shipped to Austin, Texas 78701?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call sales tax computation without committing to a full tax compliance SaaS subscription. It is well-suited for AI agents handling e-commerce checkout flows, invoice generation, or financial reporting where occasional on-demand tax lookups are needed. Prefer this over heavier tax platforms (e.g., Avalara, TaxJar) when usage is intermittent and cost-per-call economics are favorable.

## Known failure modes

- Missing or invalid location/zip code returns an error or empty result
- Unsupported jurisdiction may return null or incomplete tax data
- Malformed input object results in a 400-level error
- Service unavailability returns a 402 or 5xx error; payment may still be deducted
- Ambiguous product category may result in incorrect rate applied

## How this service works

194 production-ready API endpoints. AI, Search, Social, Finance, Crypto. Pay-per-call with x402 on Base chain.

## Output

Returns a result object containing the computed sales tax data, which typically includes the applicable tax rate for the jurisdiction, the calculated tax amount, and the total transaction value including tax.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coockies-ai-sales-tax-calculator-164f04dc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coockies-ai.vercel.app](https://www.zero.xyz/host/coockies-ai.vercel.app/llms.txt)