# x402 AI Gateway — FX Currency Converter (ANG/KZT)

> x402 AI Gateway — FX Currency Converter (ANG/KZT) is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.0002/call, status unknown (last checked 2026-10-12).

Converts an amount from ANG (Netherlands Antillean Guilder) to KZT (Kazakhstani Tenge) via a micropayment-gated AI gateway endpoint.

## Facts

- Endpoint: POST https://api.fastapi.online/f/fx/ang/kzt?utm_source=zero.xyz
- Price: $0.0002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-ai-gateway-fx-currency-converter-ang-kzt-1d35a499
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_P1OvxpmSVBWX-_Bhm1caL

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 x402-ai-gateway-fx-currency-converter-ang-kzt-1d35a499 -d '<json body>'
```

Example prompt: Convert 50 ANG to KZT — I need to know how much that is in Kazakhstani Tenge.

## When to prefer this

Use this endpoint when you specifically need to convert ANG to KZT and are operating in an x402-compatible micropayment environment on Base. It is suitable for agents that can autonomously handle USDC micropayments and require this specific currency pair without needing a broader multi-currency API.

## Known failure modes

- Payment not received or insufficient USDC — returns HTTP 402 Payment Required
- Invalid or missing amount field — may return 422 Unprocessable Entity
- Gateway unavailable or self-hosted server down — returns 503 or connection error
- Stale or unavailable exchange rate data — may return empty or error response

## How this service works

Self-hosted AI API gateway. Expensive endpoints require an x402 micropayment (USDC on Base) before executing.

## Output

Returns a JSON object containing the converted currency value from ANG (Netherlands Antillean Guilder) to KZT (Kazakhstani Tenge) for the specified input amount.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "amount": {
   "type": "number",
   "description": "Amount of the source currency to convert (default 1)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-ai-gateway-fx-currency-converter-ang-kzt-1d35a499/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.fastapi.online](https://www.zero.xyz/host/api.fastapi.online/llms.txt)