From b9d306894e68f6dbc0727d65a5b6fd090dcc8b11 Mon Sep 17 00:00:00 2001
From: jeffyanta <jeff@flipcash.com>
Date: Fri, 12 Dec 2025 11:39:51 -0500
Subject: [PATCH] Add USDC package

---
 ocp/common/mint.go     |  3 ++-
 ocp/data/external.go   | 11 ++++++-----
 ocp/transaction/alt.go |  2 ++
 usdc/usdc.go           | 15 +++++++++++++++
 usdf/usdf.go           |  4 ++--
 5 files changed, 27 insertions(+), 8 deletions(-)
 create mode 100644 usdc/usdc.go

diff --git a/ocp/common/mint.go b/ocp/common/mint.go
index 17cf02f..03375fe 100644
--- a/ocp/common/mint.go
+++ b/ocp/common/mint.go
@@ -9,6 +9,7 @@ import (
 	"github.com/code-payments/ocp-server/ocp/config"
 	ocp_data "github.com/code-payments/ocp-server/ocp/data"
 	"github.com/code-payments/ocp-server/solana/currencycreator"
+	"github.com/code-payments/ocp-server/usdc"
 	"github.com/code-payments/ocp-server/usdf"
 )
 
@@ -46,7 +47,7 @@ func IsCoreMint(mint *Account) bool {
 
 func IsCoreMintUsdStableCoin() bool {
 	switch CoreMintAccount.PublicKey().ToBase58() {
-	case usdf.Mint:
+	case usdf.Mint, usdc.Mint:
 		return true
 	default:
 		return false
diff --git a/ocp/data/external.go b/ocp/data/external.go
index 20419fd..0eb131e 100644
--- a/ocp/data/external.go
+++ b/ocp/data/external.go
@@ -5,12 +5,13 @@ import (
 	"errors"
 	"time"
 
-	"github.com/code-payments/ocp-server/ocp/config"
-	"github.com/code-payments/ocp-server/ocp/data/currency"
 	currency_lib "github.com/code-payments/ocp-server/currency"
 	"github.com/code-payments/ocp-server/currency/coingecko"
 	"github.com/code-payments/ocp-server/currency/fixer"
 	"github.com/code-payments/ocp-server/metrics"
+	"github.com/code-payments/ocp-server/ocp/config"
+	"github.com/code-payments/ocp-server/ocp/data/currency"
+	"github.com/code-payments/ocp-server/usdc"
 	"github.com/code-payments/ocp-server/usdf"
 )
 
@@ -50,7 +51,7 @@ func (dp *WebProvider) GetCurrentExchangeRatesFromExternalProviders(ctx context.
 	var err error
 
 	switch config.CoreMintPublicKeyString {
-	case usdf.Mint:
+	case usdc.Mint, usdf.Mint:
 		coinGeckoRates[string(currency_lib.USD)] = 1.0
 	default:
 		coinGeckoData, err := dp.coinGecko.GetCurrentRates(ctx, string(config.CoreMintSymbol))
@@ -83,7 +84,7 @@ func (dp *WebProvider) GetPastExchangeRatesFromExternalProviders(ctx context.Con
 	ts := t
 	var err error
 	switch config.CoreMintPublicKeyString {
-	case usdf.Mint:
+	case usdc.Mint, usdf.Mint:
 		coinGeckoRates[string(currency_lib.USD)] = 1.0
 	default:
 		coinGeckoData, err := dp.coinGecko.GetCurrentRates(ctx, string(config.CoreMintSymbol))
@@ -116,7 +117,7 @@ func computeAllExchangeRates(coreMintRates map[string]float64, usdRates map[stri
 		return nil, errors.New("usd rate missing")
 	}
 	switch config.CoreMintPublicKeyString {
-	case usdf.Mint:
+	case usdc.Mint, usdf.Mint:
 		coreMintToUsd = 1.0
 	}
 
diff --git a/ocp/transaction/alt.go b/ocp/transaction/alt.go
index 1a0f661..a205725 100644
--- a/ocp/transaction/alt.go
+++ b/ocp/transaction/alt.go
@@ -10,6 +10,7 @@ import (
 	ocp_data "github.com/code-payments/ocp-server/ocp/data"
 	"github.com/code-payments/ocp-server/solana"
 	"github.com/code-payments/ocp-server/solana/system"
+	"github.com/code-payments/ocp-server/usdc"
 )
 
 // GetAltForMint gets an address lookup table to operate in a versioned
@@ -47,6 +48,7 @@ func GetAltForMint(ctx context.Context, data ocp_data.Provider, mint *common.Acc
 			common.CoreMintAccount.PublicKey().ToBytes(),
 			system.RentSysVar,
 			system.RecentBlockhashesSysVar,
+			usdc.TokenMint,
 		},
 	}, nil
 }
diff --git a/usdc/usdc.go b/usdc/usdc.go
new file mode 100644
index 0000000..0f2a7c7
--- /dev/null
+++ b/usdc/usdc.go
@@ -0,0 +1,15 @@
+package usdc
+
+import (
+	"crypto/ed25519"
+)
+
+const (
+	Mint          = "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
+	QuarksPerUsdf = 1000000
+	Decimals      = 6
+)
+
+var (
+	TokenMint = ed25519.PublicKey{198, 250, 122, 243, 190, 219, 173, 58, 61, 101, 243, 106, 171, 201, 116, 49, 177, 187, 228, 194, 210, 246, 224, 228, 124, 166, 2, 3, 69, 47, 93, 97}
+)
diff --git a/usdf/usdf.go b/usdf/usdf.go
index b0efaed..f755645 100644
--- a/usdf/usdf.go
+++ b/usdf/usdf.go
@@ -7,11 +7,11 @@ import (
 // todo: Update config once USDF is created
 
 const (
-	Mint          = "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
+	Mint          = "USDFmFa553nkGNSvFn2gXCnpPuWLkgre2aHmPMDyaWi"
 	QuarksPerUsdf = 1000000
 	Decimals      = 6
 )
 
 var (
-	TokenMint = ed25519.PublicKey{198, 250, 122, 243, 190, 219, 173, 58, 61, 101, 243, 106, 171, 201, 116, 49, 177, 187, 228, 194, 210, 246, 224, 228, 124, 166, 2, 3, 69, 47, 93, 97}
+	TokenMint = ed25519.PublicKey{7, 7, 48, 54, 200, 135, 41, 84, 87, 240, 35, 129, 5, 62, 49, 49, 241, 253, 42, 157, 138, 222, 175, 252, 65, 146, 180, 12, 103, 218, 59, 22}
 )