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FreeTier Agent API — Currency Exchange Rate Lookup
x402
FreeTier Agent API — Currency Exchange Rate Lookup is a paid API for AI agents from freetier-agent-api.pages.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-18).
Converts a currency amount from one currency to another and returns the exchange rate and converted result.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call data API for AI agents: AI model prices and cost calculator, 4,259 MCP servers, email domain checks, text-to-JSON extraction, country/holiday/currency lookup, page and link checks, page-to-markdown, 2,230 verified APIs. x402, USDC on Base, no signup. Sources cited in every response.
Output
Returns a JSON object with the source currency (from), target currency (to), the current exchange rate (rate), the input amount, the converted result, and the rate date (e.g. {"from":"USD","to":"DKK","rate":6.9,"amount":100,"result":690,"rate_date":"2026-10-16"}).
Example use cases
Travel budget currency conversion
“I'm heading to Denmark next week — how much is 500 US dollars in Danish Krone at today's rate?”
International invoice pricing
“I need to bill a client in Japan — what's the current exchange rate from EUR to JPY, and how much would 2500 euros come out to?”
Crypto-to-fiat cost check
“My API costs $0.002 USDC per call — what would that be in British pounds? Use the current USD to GBP rate.”
Technical details
Endpoint
GEThttps://freetier-agent-api.pages.dev/api/currency?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call currency conversion without signup, especially in agent workflows that already use x402/USDC micropayments on Base. Ideal for one-off FX lookups, international pricing calculations, or travel budget conversions where a full-featured forex subscription is overkill.
Side effects
- Invalid or unsupported currency code returns an error response
- Missing required 'from' or 'to' query parameters causes a 400-level error
- Payment not fulfilled via x402/USDC results in a 402 Payment Required response
- Stale or unavailable rate data may return a rate_date that is not today's date
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "DKK",
"from": "USD",
"rate": 6.9,
"amount": 100,
"result": 690,
"rate_date": "2026-10-16"
}
}Tags
x402
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