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DopamineDesk FX Rates API
x402
DopamineDesk FX Rates API is a paid API for AI agents from ai-data-marketplace-1042299154756.us-central1.run.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Returns the current exchange rate between two currency pairs (base and target), settling payment via x402 USDC on Base.
Price / call$0.02
Success—
StatusUnknown
How this service works
Fetch current reference foreign-exchange rates for a base currency, optionally filtered to target currencies.
Output
Returns a JSON object containing the base currency code, target currency code, the current exchange rate as a decimal number, and a Unix timestamp indicating when the rate was last updated.
Example use cases
Live forex rate for travel budgeting
“I'm heading to Japan next week — what's the current exchange rate from USD to JPY so I can figure out how much cash to bring?”
Currency conversion for international invoice
“I'm billing a client in the UK and need to know the current GBP to EUR exchange rate so I can set the right price on my invoice.”
FX monitoring for crypto-fiat arbitrage
“What's the live rate between EUR and USD right now? I'm comparing it against an on-chain price to spot any arbitrage.”
Technical details
Endpoint
GEThttps://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/fx_ratesWhen to prefer
Choose this endpoint when you need a quick, lightweight, pay-per-use FX rate lookup with USDC micropayment settlement on Base — ideal for AI agents that occasionally need spot exchange rates without a subscription or API key, especially in crypto-native or agentic payment workflows.
Side effects
- Unsupported or invalid currency code returns an error response
- Network timeout if the upstream FX data provider is unavailable
- Missing required query parameters (base or target) returns a 400-style error
- Payment failure via x402 if insufficient USDC balance on Base
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"base": "EUR",
"rates": {
"USD": 1.152984
},
"source": "https://www.exchangerate-api.com",
"success": true,
"source_url": "https://www.exchangerate-api.com/docs/free",
"updated_at": "2026-08-07T00:02:31.000Z",
"next_update_at": "2026-08-08T00:14:21.000Z",
"marketplace_metadata": {
"source": "ExchangeRate-API open endpoint",
"billable": true,
"data_mode": "live_source",
"availability": "operational"
}
}
}Tags
x402
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