# x402 AI Gateway – XAF/AOA Currency Conversion

> x402 AI Gateway – XAF/AOA Currency Conversion is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.0002/call, status down (last checked 2026-10-13).

Converts a specified amount between XAF (Central African CFA franc) and AOA (Angolan kwanza) currencies, with micropayment required via x402 protocol.

## Facts

- Endpoint: POST https://api.fastapi.online/f/fx/aoa/xaf?utm_source=zero.xyz
- Price: $0.0002/call
- Payment: x402
- Status: down
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-ai-gateway-xaf-aoa-currency-conversion-03f18ca8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KY2xJhAr6zSeEm3uhL3Vi

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-xaf-aoa-currency-conversion-03f18ca8 -d '<json body>'
```

Example prompt: Can you convert 1000 XAF (Central African CFA francs) to Angolan kwanza (AOA) for me?

## When to prefer this

Use this endpoint when you specifically need to convert between XAF (Central African CFA franc) and AOA (Angolan kwanza), particularly in an agent context where micropayment via x402/USDC on Base is already supported. Prefer this over general FX APIs when you need a pay-per-call model with no subscription required.

## Known failure modes

- Invalid or missing amount field returns an error
- Micropayment not provided or invalid results in 402 Payment Required response
- Network or gateway downtime returns 5xx error
- Unsupported currency pair may return an empty or error response
- Amount of zero or negative value may return an error or undefined behavior

## 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 amount and likely the exchange rate applied, from XAF to AOA (or vice versa) for the given 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-xaf-aoa-currency-conversion-03f18ca8/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)