iulianpascalau · iulianpascalau · Feb 6, 2026 · Feb 1, 2026 · Feb 1, 2026 · Feb 1, 2026
diff --git a/.github/workflows/check-contract-build.yml b/.github/workflows/check-contract-build.yml
diff --git a/.github/workflows/rs-tests.yml b/.github/workflows/rs-tests.yml
diff --git a/.gitignore b/.gitignore
@@ -31,3 +31,4 @@ data/
 logs/
 .idea/
 epoch-proxy-server
+contracts/
diff --git a/Jenkinsfile-crypto-prod b/Jenkinsfile-crypto-prod
diff --git a/Jenkinsfile-crypto-staging b/Jenkinsfile-crypto-staging
diff --git a/Jenkinsfile-proxy-prod → Jenkinsfile-prod b/Jenkinsfile-proxy-prod → Jenkinsfile-prod
diff --git a/Jenkinsfile-proxy-staging → Jenkinsfile-staging b/Jenkinsfile-proxy-staging → Jenkinsfile-staging
diff --git a/frontend/src/Dashboard.tsx b/frontend/src/Dashboard.tsx
@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react';
 import { getAccessKey, clearAuth, getUserInfo, parseJwt, type User as AuthUser } from './auth';
 import { useNavigate } from 'react-router-dom';
-import { LogOut, Key, Users, Copy, Trash2, Shield, Loader, Plus, User, Pencil, RotateCcw, ChevronLeft, ChevronRight, ArrowUpDown, ArrowUp, ArrowDown, Check, X as XIcon, UserCog, BookOpen, ExternalLink, Zap, AlertTriangle, CreditCard, Wallet } from 'lucide-react';
+import { LogOut, Key, Users, Copy, Trash2, Shield, Loader, Plus, User, Pencil, RotateCcw, ChevronLeft, ChevronRight, ChevronUp, ArrowUpDown, ArrowUp, ArrowDown, Check, X as XIcon, UserCog, BookOpen, ExternalLink, Zap, AlertTriangle, CreditCard, Wallet } from 'lucide-react';
 import axios from 'axios';
 
 
@@ -29,15 +29,15 @@ interface UserDetails {
 interface CryptoPaymentState {
     isServiceAvailable: boolean;
     isPaused: boolean;
-    requestsPerEGLD: number;
+    creditsPerEGLD: number;
     walletURL: string;
     explorerURL: string;
     contractAddress: string;
     minimumBalance: number;
 
     paymentId: number | null;
     depositAddress: string | null;
-    numberOfRequests: number;
+    credits: number;
 
     isLoading: boolean;
     error: string | null;
@@ -111,14 +111,14 @@ export const Dashboard = () => {
     const [cryptoState, setCryptoState] = useState<CryptoPaymentState>({
         isServiceAvailable: false,
         isPaused: false,
-        requestsPerEGLD: 10000,
+        creditsPerEGLD: 10000,
         walletURL: 'https://devnet-wallet.multiversx.com',
         explorerURL: 'https://devnet-explorer.multiversx.com',
         contractAddress: 'erd1qqqqqqqqqqqqqpgqc6u0p4kfkr5ekcrae86m6knx46gr36khrqqqhf96zw',
         minimumBalance: 0,
         paymentId: null,
         depositAddress: null,
-        numberOfRequests: 0,
+        credits: 0,
         isLoading: false,
         error: null
     });
@@ -141,7 +141,7 @@ export const Dashboard = () => {
             const newState = {
                 isServiceAvailable: config.isAvailable,
                 isPaused: config.isPaused,
-                requestsPerEGLD: config.requestsPerEGLD,
+                creditsPerEGLD: config.creditsPerEGLD,
                 walletURL: ensureProtocol(config.walletURL),
                 explorerURL: ensureProtocol(config.explorerURL),
                 contractAddress: config.contractAddress,
@@ -164,7 +164,7 @@ export const Dashboard = () => {
                             ...prev,
                             paymentId: accountRes.data.paymentId,
                             depositAddress: accountRes.data.address,
-                            numberOfRequests: accountRes.data.numberOfRequests
+                            credits: accountRes.data.credits
                         }));
                     }
                 } catch (accErr: any) {
@@ -177,7 +177,7 @@ export const Dashboard = () => {
                             ...prev,
                             paymentId: null,
                             depositAddress: null,
-                            numberOfRequests: 0
+                            credits: 0
                         }));
                     }
                 }
@@ -191,7 +191,7 @@ export const Dashboard = () => {
                 isServiceAvailable: false,
                 isPaused: false, // Ensure paused state is cleared if service is down
                 isLoading: false,
-                requestsPerEGLD: 0, // Reset rate
+                creditsPerEGLD: 0, // Reset rate
                 error: err.response?.data?.error || "Crypto service unavailable"
             }));
         }
@@ -217,7 +217,7 @@ export const Dashboard = () => {
                     ...prev,
                     paymentId: accountRes.data.paymentId,
                     depositAddress: accountRes.data.address,
-                    numberOfRequests: accountRes.data.numberOfRequests,
+                    credits: accountRes.data.credits,
                     isLoading: false
                 }));
                 // Also refresh the main user data to ensure all views are in sync
@@ -636,7 +636,7 @@ export const Dashboard = () => {
                                                 </p>
                                                 <div className="flex flex-wrap gap-2 mb-6">
                                                     <span className="bg-white/5 px-2 py-1 rounded text-xs text-slate-300">
-                                                        Rate: {cryptoState.requestsPerEGLD ? cryptoState.requestsPerEGLD.toLocaleString() : '-'} req / 1 EGLD
+                                                        Rate: {cryptoState.creditsPerEGLD ? cryptoState.creditsPerEGLD.toLocaleString() : '-'} credits / 1 EGLD
                                                     </span>
                                                     <span className="bg-white/5 px-2 py-1 rounded text-xs text-slate-300">Activation: under 3 minutes</span>
                                                 </div>
@@ -727,7 +727,7 @@ export const Dashboard = () => {
                                                     </div>
                                                     <div>
                                                         <label className="text-xs text-slate-500 block mb-1">Current Rate</label>
-                                                        <div className="text-slate-200">{cryptoState.requestsPerEGLD ? cryptoState.requestsPerEGLD.toLocaleString() : '-'} req/EGLD</div>
+                                                        <div className="text-slate-200">{cryptoState.creditsPerEGLD ? cryptoState.creditsPerEGLD.toLocaleString() : '-'} credits/EGLD</div>
                                                     </div>
                                                     <div className="col-span-2 mt-1">
                                                         <div className="text-[10px] text-amber-500/80 font-medium flex items-center gap-1.5 uppercase tracking-wide">
@@ -1180,8 +1180,28 @@ export const Dashboard = () => {
                                 <ExternalLink size={18} />
                             </a>
                             <div className="text-center w-full border-t border-white/5 pt-6">
-                                <p style={{ fontSize: '0.8rem' }} className="text-slate-500">
-                                    Build {appInfo.version} | <a href="https://github.com/iulianpascalau/mx-epoch-proxy-go" className="hover:text-slate-400 underline decoration-slate-600 underline-offset-2" target="_blank" rel="noopener noreferrer">Solution</a>
+                                <p style={{ fontSize: '0.8rem' }} className="text-slate-500 flex items-center justify-center gap-1">
+                                    Build {appInfo.version} |
+                                    <div className="relative group inline-block ml-1">
+                                        <button className="hover:text-slate-300 underline decoration-slate-600 underline-offset-2 flex items-center gap-1 transition-colors">
+                                            Source Code <ChevronUp size={12} />
+                                        </button>
+                                        <div className="absolute bottom-full left-1/2 -translate-x-1/2 mb-2 w-56 bg-slate-900/95 border border-slate-700/50 backdrop-blur-xl rounded-lg shadow-2xl opacity-0 invisible group-hover:visible group-hover:opacity-100 transition-all duration-200 transform origin-bottom z-50 flex flex-col">
+                                            <div className="px-4 py-2 border-b border-white/5 text-[10px] uppercase font-bold text-slate-500 tracking-wider">
+                                                Repositories
+                                            </div>
+                                            <a href="https://github.com/iulianpascalau/mx-epoch-proxy-go" target="_blank" rel="noopener noreferrer" className="px-4 py-3 hover:bg-indigo-500/10 hover:text-indigo-300 text-slate-300 text-xs text-left transition-colors flex items-center gap-2">
+                                                <span className="w-1.5 h-1.5 rounded-full bg-indigo-500"></span> Epoch Proxy (Go)
+                                            </a>
+                                            <a href="https://github.com/iulianpascalau/mx-crypto-payments" target="_blank" rel="noopener noreferrer" className="px-4 py-3 hover:bg-emerald-500/10 hover:text-emerald-300 text-slate-300 text-xs text-left transition-colors flex items-center gap-2">
+                                                <span className="w-1.5 h-1.5 rounded-full bg-emerald-500"></span> Crypto Payments (Go)
+                                            </a>
+                                            <a href="https://github.com/iulianpascalau/mx-credits-contract-rs" target="_blank" rel="noopener noreferrer" className="px-4 py-3 hover:bg-amber-500/10 hover:text-amber-300 text-slate-300 text-xs text-left transition-colors flex items-center gap-2 rounded-b-lg">
+                                                <span className="w-1.5 h-1.5 rounded-full bg-amber-500"></span> Credits Contract (Rust)
+                                            </a>
+                                            <div className="absolute -bottom-1 left-1/2 -translate-x-1/2 w-2 h-2 bg-slate-900 border-r border-b border-slate-700/50 transform rotate-45"></div>
+                                        </div>
+                                    </div>
                                 </p>
                             </div>
 

diff --git a/frontend/src/Login.tsx b/frontend/src/Login.tsx
@@ -1,7 +1,7 @@
 import React, { useState, useEffect } from 'react';
 import { setAuth } from './auth';
 import { useNavigate, Link, useLocation } from 'react-router-dom';
-import { Lock, User } from 'lucide-react';
+import { Lock, User, ChevronUp } from 'lucide-react';
 
 export const Login = () => {
     const [username, setUsername] = useState('');
@@ -121,8 +121,28 @@ export const Login = () => {
                 </form>
 
                 <div className="mt-6 text-center">
-                    <p style={{ fontSize: '0.8rem' }} className="text-slate-500">
-                        Build {version} | <a href="https://github.com/iulianpascalau/mx-epoch-proxy-go" className="hover:text-slate-400 underline decoration-slate-600 underline-offset-2" target="_blank" rel="noopener noreferrer">Solution</a>
+                    <p style={{ fontSize: '0.8rem' }} className="text-slate-500 flex items-center justify-center gap-1">
+                        Build {version} |
+                        <div className="relative group inline-block ml-1">
+                            <button className="hover:text-slate-300 underline decoration-slate-600 underline-offset-2 flex items-center gap-1 transition-colors">
+                                Source Code <ChevronUp size={12} />
+                            </button>
+                            <div className="absolute bottom-full left-1/2 -translate-x-1/2 mb-2 w-56 bg-slate-900/95 border border-slate-700/50 backdrop-blur-xl rounded-lg shadow-2xl opacity-0 invisible group-hover:visible group-hover:opacity-100 transition-all duration-200 transform origin-bottom z-50 flex flex-col">
+                                <div className="px-4 py-2 border-b border-white/5 text-[10px] uppercase font-bold text-slate-500 tracking-wider">
+                                    Repositories
+                                </div>
+                                <a href="https://github.com/iulianpascalau/mx-epoch-proxy-go" target="_blank" rel="noopener noreferrer" className="px-4 py-3 hover:bg-indigo-500/10 hover:text-indigo-300 text-slate-300 text-xs text-left transition-colors flex items-center gap-2">
+                                    <span className="w-1.5 h-1.5 rounded-full bg-indigo-500"></span> Epoch Proxy (Go)
+                                </a>
+                                <a href="https://github.com/iulianpascalau/mx-crypto-payments" target="_blank" rel="noopener noreferrer" className="px-4 py-3 hover:bg-emerald-500/10 hover:text-emerald-300 text-slate-300 text-xs text-left transition-colors flex items-center gap-2">
+                                    <span className="w-1.5 h-1.5 rounded-full bg-emerald-500"></span> Crypto Payments (Go)
+                                </a>
+                                <a href="https://github.com/iulianpascalau/mx-credits-contract-rs" target="_blank" rel="noopener noreferrer" className="px-4 py-3 hover:bg-amber-500/10 hover:text-amber-300 text-slate-300 text-xs text-left transition-colors flex items-center gap-2 rounded-b-lg">
+                                    <span className="w-1.5 h-1.5 rounded-full bg-amber-500"></span> Credits Contract (Rust)
+                                </a>
+                                <div className="absolute -bottom-1 left-1/2 -translate-x-1/2 w-2 h-2 bg-slate-900 border-r border-b border-slate-700/50 transform rotate-45"></div>
+                            </div>
+                        </div>
                     </p>
                 </div>
             </div>

diff --git a/go.mod b/go.mod
@@ -6,8 +6,8 @@ toolchain go1.24.11
 
 require (
 	github.com/dchest/captcha v1.1.0
-	github.com/gin-gonic/gin v1.10.0
 	github.com/golang-jwt/jwt/v5 v5.3.0
+	github.com/iulianpascalau/mx-crypto-payments-go v1.0.9
 	github.com/joho/godotenv v1.5.1
 	github.com/mattn/go-sqlite3 v1.14.33
 	github.com/multiversx/mx-chain-core-go v1.4.1
@@ -50,6 +50,7 @@ require (
 	github.com/gin-contrib/cors v1.6.0 // indirect
 	github.com/gin-contrib/pprof v1.4.0 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/gin-gonic/gin v1.10.0 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect

diff --git a/go.sum b/go.sum
@@ -268,6 +268,8 @@ github.com/ipfs/go-test v0.0.4 h1:DKT66T6GBB6PsDFLoO56QZPrOmzJkqU1FZH5C9ySkew=
 github.com/ipfs/go-test v0.0.4/go.mod h1:qhIM1EluEfElKKM6fnWxGn822/z9knUGM1+I/OAQNKI=
 github.com/ipld/go-ipld-prime v0.21.0 h1:n4JmcpOlPDIxBcY037SVfpd1G+Sj1nKZah0m6QH9C2E=
 github.com/ipld/go-ipld-prime v0.21.0/go.mod h1:3RLqy//ERg/y5oShXXdx5YIp50cFGOanyMctpPjsvxQ=
+github.com/iulianpascalau/mx-crypto-payments-go v1.0.9 h1:w5KmBFzrx4XxeJ2t56crTGcDthH9veMKtYt7ltN3WHY=
+github.com/iulianpascalau/mx-crypto-payments-go v1.0.9/go.mod h1:W7bSzZiEQaG3iAAMMBP/5y5PWpIlXeY7d724Xa5SvGs=
 github.com/jackpal/go-nat-pmp v1.0.2 h1:KzKSgb7qkJvOUTqYl9/Hg/me3pWgBmERKrTGD7BdWus=
 github.com/jackpal/go-nat-pmp v1.0.2/go.mod h1:QPH045xvCAeXUZOxsnwmrtiCoxIr9eob+4orBN1SBKc=
 github.com/jbenet/go-cienv v0.1.0/go.mod h1:TqNnHUmJgXau0nCzC7kXWeotg3J9W34CUv5Djy1+FlA=

diff --git a/integrationTests/go/e2e_test.go → integrationTests/e2e_test.go b/integrationTests/go/e2e_test.go → integrationTests/e2e_test.go
@@ -1,4 +1,4 @@
-package _go
+package integrationTests
 
 import (
 	"context"
@@ -8,23 +8,30 @@ import (
 	"testing"
 	"time"
 
-	"github.com/iulianpascalau/mx-epoch-proxy-go/integrationTests/go/framework"
+	cryptoPaymentsFramework "github.com/iulianpascalau/mx-crypto-payments-go/integrationTests/framework"
+	"github.com/iulianpascalau/mx-epoch-proxy-go/integrationTests/framework"
 	"github.com/multiversx/mx-chain-core-go/data/transaction"
+	logger "github.com/multiversx/mx-chain-logger-go"
 	"github.com/stretchr/testify/require"
 )
 
+var log = logger.GetOrCreate("integrationTests")
+
 func TestCreateFreeUserAndCreateKeyAndTestRequestsAreThrottledThenSwitchToPremium(t *testing.T) {
 	if !framework.IsChainSimulatorIsRunning() {
 		t.Skip("No chain simulator instance running found. Skipping slow test")
 	}
+
+	framework.EnsureTestContracts(t)
+
 	proxyService := framework.NewProxyService(t)
-	cryptoPaymentService := framework.NewCryptoPaymentService(t)
+	cryptoPaymentService := cryptoPaymentsFramework.NewCryptoPaymentService(t)
 
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
 	proxyService.Setup(ctx)
-	cryptoPaymentService.Setup(ctx, 100)
+	cryptoPaymentService.Setup(ctx, 100, framework.GetContractPath("credits"))
 
 	defer proxyService.TearDown()
 	defer cryptoPaymentService.TearDown()
@@ -87,7 +94,7 @@ func TestCreateFreeUserAndCreateKeyAndTestRequestsAreThrottledThenSwitchToPremiu
 	// Value: 0.5 EGLD = 0.5 * 10^18 = 500000000000000000
 	value := "500000000000000000"
 
-	receiverAddr := framework.NewMvxAddressFromBech32(t, session.GetDepositAddress())
+	receiverAddr := cryptoPaymentsFramework.NewMvxAddressFromBech32(t, session.GetDepositAddress())
 
 	// Send Tx
 	hash, _, status := cryptoPaymentService.ChainSimulator.SendTx(ctx, senderSk, receiverAddr, value, 500000, []byte{})
@@ -103,7 +110,7 @@ func TestCreateFreeUserAndCreateKeyAndTestRequestsAreThrottledThenSwitchToPremiu
 		// Generate a block to ensure any pending txs (from balanceProcessor) are processed
 		cryptoPaymentService.ChainSimulator.GenerateBlocks(ctx, 1)
 
-		reqs := session.GetNumberOfRequests()
+		reqs := session.GetCredits()
 		return reqs >= 50
 	}, 2*time.Minute, 1*time.Second)
 	log.Info("Done ✓")
-Original file line number
+Diff line change
@@ Expand Up / @@ -31,3 +31,4 @@ data/ @@
     logs/
     .idea/
     epoch-proxy-server
+    contracts/