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x402 AI Gateway — ARS to BYN Currency Converter
x402
x402 AI Gateway — ARS to BYN 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 2026-10-16).
Converts a given amount from Argentine Peso (ARS) to Belarusian Ruble (BYN), 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 a JSON object containing the converted currency value from ARS to BYN, based on the provided input amount.
Example use cases
Travel budget estimation Belarus from Argentina
“I'm traveling from Argentina to Belarus and want to know how much 10000 ARS is worth in Belarusian Rubles so I can plan my spending.”
Cross-border payment amount check
“Before I send money from Argentina, can you tell me what 2500 Argentine Pesos converts to in BYN?”
Exchange rate spot check for accounting
“I need the current ARS to BYN conversion for 1 peso — just the base rate for my bookkeeping records.”
Technical details
Endpoint
POSThttps://api.fastapi.online/f/fx/ars/byn?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need to convert Argentine Peso (ARS) to Belarusian Ruble (BYN) and are operating in an x402-enabled micropayment context using USDC on Base. It is appropriate for lightweight, per-call currency lookups at very low cost ($0.0002 USDC).
Side effects
- Missing or invalid x402 payment header — returns HTTP 402 Payment Required
- Amount field missing defaults to 1 but may return unexpected results if malformed
- No explicit schema for error objects — unclear error messages on failure
- Service may be unavailable if self-hosted instance is down
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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