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x402 AI Gateway — ARS to BRL Currency Converter
x402
x402 AI Gateway — ARS to BRL 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 2026-09-15).
Converts Argentine Peso (ARS) to Brazilian Real (BRL) at the current exchange rate, gated by an x402 USDC micropayment on Base.
Price / call$0.0002
Success—
StatusUnknown
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 from ARS to BRL, reflecting the current exchange rate applied to the requested amount.
Example use cases
Cross-border price comparison
“How much would 10,000 Argentine pesos be in Brazilian reais today? I'm comparing prices between Buenos Aires and São Paulo.”
Travel budget estimation
“I have 50,000 ARS to spend — convert that to Brazilian reais so I know roughly what my budget is for my trip to Rio.”
Business invoice conversion
“My supplier billed me 75,000 ARS. What's that in BRL right now so I can record it correctly?”
Technical details
Endpoint
POSThttps://api.fastapi.online/f/fx/ars/brlWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call ARS-to-BRL conversion without a subscription or API key — ideal for agents that occasionally need Latin American currency conversion and want to pay micro-fractions of a cent per lookup via USDC on Base.
Side effects
- Invalid or negative amount input — may return error or zero result
- Service unavailable if the self-hosted gateway is down
- x402 payment failure if USDC balance on Base is insufficient — returns HTTP 402
- Empty or malformed response if exchange rate data source is unavailable
- Rate limiting if too many consecutive calls are made
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| amount | number | Amount of the source currency to convert (default 1) |
Output
Schema · Response
{
"type": "object"
}Tags
x402
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