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fastapi.online Fiat Exchange Rates
x402
fastapi.online Fiat Exchange Rates is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.0005/call, status unknown (last checked 2026-10-16).
Returns current fiat currency exchange rates for a given currency code
Price / call$0.0005
Success—
StatusUnknown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.
Output
A response containing current fiat exchange rate data for the specified currency, likely including rate values relative to a base currency such as USD or a set of cross-rates.
Example use cases
Live forex rate for invoicing
“What is the current exchange rate for GBP so I can calculate how much to invoice my UK client in their local currency?”
Multi-currency budget conversion
“Fetch the current fiat rates for JPY — I need to know today's rate to plan my travel budget for Japan.”
Crypto-to-fiat price reference
“Get me the current fiat exchange rate for USD so I can display the dollar equivalent of a USDC payment on my checkout page.”
Technical details
Endpoint
POSThttps://api.fastapi.online/fiat-rates?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, per-call fiat exchange rate lookup without signing up for a traditional forex API, and you are already using the fastapi.online ecosystem or want to pay per call with crypto (USDC) via x402.
Side effects
- Unsupported or invalid currency code returns an error or empty result
- Network timeout or service unavailability
- Payment required (402) if no valid x402 payment or API key is provided
- Malformed request body returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| currency | string |
Tags
x402
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