# x402 AI Gateway — FX/ANG to KRW Converter

> x402 AI Gateway — FX/ANG to KRW Converter 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 a specified amount from ANG (Netherlands Antillean Guilder) to KRW (South Korean Won), requiring a $0.0002 USDC micropayment via x402 on Base before executing.

## Facts

- Endpoint: POST https://api.fastapi.online/f/fx/ang/krw?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-ang-to-krw-converter-70bed466
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4HxQ2mrskN9Xvc1_YjcRh

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-ang-to-krw-converter-70bed466 -d '<json body>'
```

Example prompt: Can you convert 250 ANG to KRW for me? I need to know the South Korean Won equivalent of 250 Netherlands Antillean Guilders.

## When to prefer this

Use this endpoint when you specifically need to convert ANG (Netherlands Antillean Guilder) to KRW (South Korean Won) and are operating in an x402-enabled payment context on the Base blockchain. Prefer this over general FX APIs when you need a pay-per-call micropayment model with no subscription required.

## Known failure modes

- Payment not provided or rejected — x402 payment required before execution
- Invalid or missing 'amount' field — defaults to 1 if omitted
- Exchange rate data unavailable — upstream FX feed may be down
- Non-numeric amount input — schema validation error
- Server error on self-hosted instance — 5xx response

## How this service works

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

## Output

Returns an object containing the converted value of the specified ANG amount expressed in KRW (South Korean Won), reflecting the current exchange rate at time of call.

## 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-ang-to-krw-converter-70bed466/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)