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SYNTHORA Currency Convert
x402
SYNTHORA Currency Convert is a paid API for AI agents from forex-convert.hergertsynthora.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Converts a specified amount from one currency to another using real-time ECB exchange rates via the Frankfurter API
Price / call$0.05
Success—
StatusUnknown
How this service works
Convert any amount between 30+ currencies at real ECB rates. For payment and treasury agents pricing cross-currency. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.
Output
Returns a JSON object with ok:true, the source and target currency codes, the conversion date, the ECB exchange rate used, the original amount, and the converted amount as a float. Example: converting 100 USD to EUR at rate 0.87489 yields 87.489 EUR.
Example use cases
Cross-border invoice pricing
“I'm billing a UK client for 3000 USD — can you tell me what that is in GBP at today's ECB rate so I can put it on the invoice?”
Treasury multi-currency reconciliation
“We received a payment of 50000 JPY — convert that to USD using real ECB rates so I can book it in our accounts.”
E-commerce checkout currency display
“A customer's cart total is 199 EUR — what's that in CAD right now so I can show them the price in their local currency?”
Technical details
Endpoint
POSThttps://forex-convert.hergertsynthora.com/serviceWhen to prefer
Choose this endpoint when you need real ECB exchange rates (not mid-market estimates) for cross-currency payment processing, treasury reconciliation, or invoice pricing. It is particularly well-suited for payment and finance agents that need auditable, provenance-tagged rate data with a known source URL. At $0.001 USDC per call it is cost-effective for high-frequency pricing lookups. Prefer alternatives if you need cryptocurrency rates, historical time-series data, or currencies outside the ECB basket.
Side effects
- Unsupported currency code returns an error (only 30+ ECB-tracked currencies supported)
- Non-integer amount field may cause validation error
- Upstream Frankfurter/ECB API unavailability causes failure
- Missing required fields (from, to, amount) return a schema validation error
- Payment failure via x402 prevents call from being executed
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "forex_convert",
"result": {},
"receipt": {}
}
}Tags
x402
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