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x402 AI Gateway — Currency Converter (FX/ANG/LKR)
x402
x402 AI Gateway — Currency Converter (FX/ANG/LKR) is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.0002/call, status unknown (last checked 2026-10-11).
Converts a specified amount from a source currency to ANG or LKR, gated behind an x402 micropayment of $0.0002 USDC 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 value and likely the exchange rate for the requested currency pair (source amount to ANG or LKR), after a $0.0002 USDC x402 micropayment is settled on Base.
Example use cases
USD to Sri Lankan Rupee conversion
“How much is 500 US dollars in Sri Lankan rupees right now? Use the FX converter to get me the current rate.”
Netherlands Antillean guilder lookup
“I need to know what 1000 euros converts to in ANG — can you run that through the currency conversion endpoint?”
Automated FX check in payment workflow
“Before we process this cross-border payout, convert 1 USD to LKR so I can verify the current exchange rate we'll be using.”
Technical details
Endpoint
POSThttps://api.fastapi.online/f/fx/ang/lkr?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need programmatic currency conversion specifically for ANG (Netherlands Antillean guilder) or LKR (Sri Lankan rupee) and are operating in an x402-enabled agent environment that can automatically handle USDC micropayments on Base. It is particularly suited for agents already integrated with the fastapi.online gateway ecosystem.
Side effects
- 402 Payment Required if x402 micropayment is not provided or fails
- Invalid amount type if a non-numeric value is passed
- Unsupported currency pair if the source currency is not recognized
- Network timeout or service unavailability from self-hosted infrastructure
- Empty or malformed response object if the underlying FX data source is unavailable
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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