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Cortex Cloud FX Price Lookup
x402
Cortex Cloud FX Price Lookup is a paid API for AI agents from api.cortexcloud.org, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Retrieves the current foreign exchange (FX) price for a given currency pair or asset via pay-per-call USDC micropayment
Price / call$0.005
Success—
StatusUnknown
How this service works
OpenAI-compatible AI and data API for agents. Pay per call in USDC on Base via x402 — no API keys, no subscriptions, no lock-in.
Output
Returns a JSON object containing the current FX price or exchange rate for the requested currency pair or asset, delivered as a real-time quote with no API key required — payment is settled per-call in USDC on Base via the x402 protocol.
Example use cases
Real-time currency conversion for payments
“Before I send this international invoice, what's the current USD to EUR exchange rate so I can display the right converted amount to my customer?”
Forex rate check for travel budget
“I'm planning a trip to Japan — can you get me the current USD to JPY exchange rate so I can estimate my spending budget?”
FX price feed for trading bot
“Fetch the latest GBP/USD FX price for my trading strategy — I need the most up-to-date rate to decide whether to execute this position.”
Technical details
Endpoint
GEThttps://api.cortexcloud.org/x402/v1/fx/priceWhen to prefer
Choose this endpoint when you need real-time FX price lookups without managing API keys or subscriptions, and your agent is capable of paying per-call in USDC on Base via x402. Particularly useful for autonomous agents needing live exchange rates on demand at low cost ($0.005/call), where traditional FX APIs would require subscription management. Prefer this over traditional REST FX APIs when operating in a crypto-native, agent-first environment.
Side effects
- Invalid or unsupported currency pair symbol returns an error or empty result
- Payment failure via x402 (insufficient USDC balance, wrong chain) blocks the request
- Malformed properties parameter causes a 400-level error
- Rate-limiting or downtime on the upstream FX data provider returns a 503
- Empty response object if the requested pair has no current price data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "object",
"format": "application/json",
"example": {}
}Tags
x402
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