# x402 AI Gateway — FX/AOA to TWD Currency Converter

> x402 AI Gateway — FX/AOA to TWD Currency 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 an amount from AOA (Angolan Kwanza) to TWD (New Taiwan Dollar) via a micropayment-gated AI API gateway using x402/USDC on Base.

## Facts

- Endpoint: POST https://api.fastapi.online/f/fx/aoa/twd?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-aoa-to-twd-currency-converter-8be30ebd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rAnLedVoYOhEoCHGS3v2h

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-aoa-to-twd-currency-converter-8be30ebd -d '<json body>'
```

Example prompt: Convert 500 Angolan Kwanza (AOA) to New Taiwan Dollars (TWD) for me — I need to know the current equivalent amount.

## When to prefer this

Use this endpoint when you specifically need to convert AOA (Angolan Kwanza) to TWD (New Taiwan Dollar) and are operating in an x402-enabled micropayment environment on Base/USDC. Suitable for agents that already handle x402 payment flows and need lightweight per-call FX lookups without a subscription-based currency API.

## Known failure modes

- Payment not included or rejected: HTTP 402 returned, conversion not executed
- Invalid or missing amount field: API may return error or default to 1 AOA
- Network timeout or gateway unavailability: no result returned
- Amount is zero or negative: may return error or zero result
- Rate data unavailable: conversion result may be stale or absent

## 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 currency value representing the TWD equivalent of the input AOA amount, based on current exchange rates processed through the x402-gated API endpoint.

## 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-aoa-to-twd-currency-converter-8be30ebd/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)