diff --git a/src/lib/coinpayportal.test.ts b/src/lib/coinpayportal.test.ts
index abff35e2..5ef1365a 100644
--- a/src/lib/coinpayportal.test.ts
+++ b/src/lib/coinpayportal.test.ts
@@ -4,6 +4,7 @@ import {
   createPayment,
   createInvoice,
   sendInvoice,
+  coinToPaymentCurrency,
   getBusinessWalletCurrencies,
   getSupportedCoins,
   preferredCoinToPaymentCurrency,
@@ -196,6 +197,12 @@ describe("CoinPayPortal supported coins API", () => {
     expect(preferredCoinToPaymentCurrency("USDC")).toBe("usdc_sol");
   });
 
+  it("maps CoinPay OAuth wallet cryptocurrency and chain fields", () => {
+    expect(coinToPaymentCurrency({ cryptocurrency: "USDC", chain: "POL" })).toBe("usdc_pol");
+    expect(coinToPaymentCurrency({ cryptocurrency: "USDT", chain: "ETH" })).toBe("usdt_eth");
+    expect(coinToPaymentCurrency({ cryptocurrency: "SOL", chain: "SOL" })).toBe("sol");
+  });
+
   it("rejects preferred coins CoinPayPortal payment creation cannot represent", async () => {
     await expect(resolveSupportedPaymentCurrency("LN")).rejects.toThrow(
       "CoinPayPortal payments do not support LN"
diff --git a/src/lib/coinpayportal.ts b/src/lib/coinpayportal.ts
index 431d6a15..e5a72a16 100644
--- a/src/lib/coinpayportal.ts
+++ b/src/lib/coinpayportal.ts
@@ -76,6 +76,7 @@ export interface SupportedCoin {
   symbol?: string;
   code?: string;
   currency?: string;
+  cryptocurrency?: string;
   id?: string;
   name?: string;
   chain?: string;
@@ -281,6 +282,7 @@ export function coinToPaymentCurrency(coin: SupportedCoin): SupportedCurrency |
     normalizeCoinSymbol(coin.symbol) ||
     normalizeCoinSymbol(coin.code) ||
     normalizeCoinSymbol(coin.currency) ||
+    normalizeCoinSymbol(coin.cryptocurrency) ||
     normalizeCoinSymbol(coin.id);
   const chain =
     normalizeCoinSymbol(coin.chain) ||