Currency ExchangeGET /currency-exchange/convert · x402 API by netintel-production-440c
Convert any amount between 32 fiat currencies (live European Central Bank rates) AND major cryptocurrencies (BTC, ETH, USDC, SOL, ICP, CELO and more, live Coinbase spot rates) — fiat↔fiat, crypto↔fiat, and crypto↔crypto all work; fiat codes outside the ECB set and long-tail tickers fall back to Coinbase/CoinGecko spot. Returns converted amount, exchange rate, inverse rate, rate date, and the rate source (ecb | coinbase | coingecko | same) so agents can price, invoice, and compare across fiat and crypto without a paid forex/crypto API. Historical dates apply to fiat pairs only.
What does this x402 API do?
Currency Exchange. This is an x402-gated GET API resource from netintel-production-440c. TOLL·402 records origin and cross source evidence as of 2026-07-21. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base
- Latest evidence
- TOLL·402 records origin and cross source evidence as of 2026-07-21
- Resource ID
- 717e09fbadb645fd4734be23
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://netintel-production-440c.up.railway.app/currency-exchange/convert", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Exact route checked
http 402 invalid · accept-0:resource-mismatch;accept-1:resource-mismatch
- Origin reachable
HEAD https://netintel-production-440c.up.railway.app/ returned 200.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.