diff --git a/package.json b/package.json
index b1d3fdb..5303036 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,6 @@
   "name": "@superdapp/agents",
   "version": "1.0.0",
   "description": "SuperDapp AI Agents SDK and CLI for Node.js/TypeScript",
-  "type": "module",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "bin": {
diff --git a/src/__tests__/payouts-integration.test.ts b/src/__tests__/payouts-integration.test.ts
new file mode 100644
index 0000000..a7f608d
--- /dev/null
+++ b/src/__tests__/payouts-integration.test.ts
@@ -0,0 +1,228 @@
+/**
+ * Integration Tests for Payouts Module
+ *
+ * Tests the complete payout flow: buildManifest → toCSV → preparePushTxs → executeTxPlan → reconcilePush
+ * Verifies that all functions can be imported from the package root.
+ */
+
+import {
+  buildManifest,
+  toCSV,
+  preparePushTxs,
+  executeTxPlan,
+  reconcilePush,
+  TokenInfo,
+  WinnerRow,
+  ExecuteOptions,
+} from '../index';
+
+interface MockTransaction {
+  to: string;
+  value: string;
+  data: string;
+  gasLimit: string;
+  gasPrice?: string;
+  maxFeePerGas?: string;
+  maxPriorityFeePerGas?: string;
+  nonce: number;
+  chainId: number;
+  type?: number;
+}
+
+// Mock viem types for testing
+interface MockWalletClient {
+  sendTransaction: (tx: MockTransaction) => Promise<`0x${string}`>;
+}
+
+interface MockPublicClient {
+  waitForTransactionReceipt: (options: { hash: `0x${string}`; confirmations: number }) => Promise<{ status: 'success' | 'reverted' }>;
+  getTransactionReceipt: (options: { hash: `0x${string}` }) => Promise<{
+    status: 'success' | 'reverted';
+    logs: Array<{
+      topics: string[];
+      data: string;
+    }>;
+  }>;
+}
+
+describe('Payouts Integration', () => {
+  const mockToken: TokenInfo = {
+    address: '0xa0b86A33e6441e7344C2C3Dd84A1ba8F3894e5D8', // USDC on Ethereum (properly checksummed)
+    symbol: 'USDC',
+    name: 'USD Coin',
+    decimals: 6,
+    chainId: 1,
+    isNative: false,
+  };
+
+  const mockWinners: WinnerRow[] = [
+    {
+      address: '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045', // vitalik.eth (properly checksummed)
+      amount: '100',
+      rank: 1,
+      id: 'winner-1',
+    },
+    {
+      address: 'invalid-address', // Invalid address for testing
+      amount: '50', 
+      rank: 2,
+      id: 'winner-2',
+    },
+    {
+      address: '0x742D35Cc6584c0532e47a89c9Fdd3d3F8c6c1B66', // Another valid address (properly checksummed)
+      amount: '25',
+      rank: 3,
+      id: 'winner-3',
+    },
+  ];
+
+  const createMockWalletClient = (): MockWalletClient => ({
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    async sendTransaction(_tx: MockTransaction): Promise<`0x${string}`> {
+      // Simulate successful transaction with proper 64-character hash
+      const hash = '0x' + '1234567890abcdef'.repeat(4); // Creates exactly 64 hex chars
+      return hash as `0x${string}`;
+    },
+  });
+
+  const createMockPublicClient = (): MockPublicClient => ({
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    async waitForTransactionReceipt(_options: { hash: `0x${string}`; confirmations: number }) {
+      return { status: 'success' as const };
+    },
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    async getTransactionReceipt(_options: { hash: `0x${string}` }) {
+      return {
+        status: 'success' as const,
+        logs: [
+          {
+            topics: [
+              '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef', // Transfer event
+              '0x000000000000000000000000742d35cc6584c0532e47a89c9fdd3d3f8c6c1b66', // from
+              '0x000000000000000000000000742d35cc6584c0532e47a89c9fdd3d3f8c6c1b66', // to (winner address)
+            ],
+            data: '0x0000000000000000000000000000000000000000000000000000000000000064', // amount (100 in hex)
+          },
+        ],
+      };
+    },
+  });
+
+  test('should complete full payout flow with happy path', async () => {
+    // Step 1: Build manifest
+    const buildResult = buildManifest(mockWinners, {
+      token: mockToken,
+      roundId: 'round-123',
+      groupId: 'group-456',
+    });
+
+    expect(buildResult.manifest).toBeDefined();
+    expect(buildResult.manifest.winners.length).toBeGreaterThan(0);
+    expect(buildResult.rejectedAddresses.length).toBeGreaterThan(0); // One invalid address
+
+    // Step 2: Export to CSV
+    const csvData = toCSV(buildResult.manifest);
+
+    expect(csvData).toContain('address,amountWei,symbol');
+    expect(csvData.toLowerCase()).toContain('0x742d35cc6584c0532e47a89c9fdd3d3f8c6c1b66');
+    expect(csvData).toContain('USDC');
+
+    // Step 3: Prepare push transactions
+    const preparedPayout = preparePushTxs(buildResult.manifest, {
+      token: mockToken,
+      maxPerBatch: 2,
+      singleApproval: true,
+      airdrop: '0x2aACce8B9522F81F14834883198645BB6894Bfc0', // Provide a valid airdrop address
+    });
+
+    expect(preparedPayout.manifestId).toBe(buildResult.manifest.id);
+    expect(preparedPayout.validation.isValid).toBe(true);
+    expect(preparedPayout.transactions.length).toBeGreaterThan(0);
+
+    // Step 4: Execute transaction plan (mocked)
+    const mockWallet = createMockWalletClient();
+    const mockPublic = createMockPublicClient();
+    const executeOptions: ExecuteOptions = {
+      wallet: mockWallet as unknown as import('viem').WalletClient,
+      publicClient: mockPublic as unknown as import('viem').PublicClient,
+      stopOnFail: false,
+    };
+    
+    const hashes = await executeTxPlan(preparedPayout, executeOptions);
+
+    expect(hashes.length).toBeGreaterThan(0);
+    expect(hashes[0]).toMatch(/^0x[a-fA-F0-9]{64}$/);
+
+    // Step 5: Reconcile push (mocked)  
+    const reconcileResult = await reconcilePush(
+      mockPublic as unknown as import('viem').PublicClient,
+      mockToken.address as `0x${string}`,
+      buildResult.manifest,
+      hashes
+    );
+
+    expect(reconcileResult.success).toBeDefined();
+    expect(reconcileResult.totalAmountFound).toBeDefined();
+    expect(reconcileResult.expectedTotalAmount).toBe(buildResult.manifest.totalAmount);
+    expect(reconcileResult.details.successfulTransfers).toBeDefined();
+  });
+
+  test('should handle failed transactions in execution', async () => {
+    // Create a mock wallet that throws errors
+    const failingWallet: MockWalletClient = {
+      async sendTransaction() {
+        throw new Error('Network error');
+      },
+    };
+
+    const buildResult = buildManifest([mockWinners[0]!], {
+      token: mockToken,
+      roundId: 'round-123',
+      groupId: 'group-456',
+    });
+
+    const preparedPayout = preparePushTxs(buildResult.manifest, {
+      token: mockToken,
+      airdrop: '0x2aACce8B9522F81F14834883198645BB6894Bfc0', // Provide a valid airdrop address
+    });
+
+    const mockPublic = createMockPublicClient();
+    const executeOptions: ExecuteOptions = {
+      wallet: failingWallet as unknown as import('viem').WalletClient,
+      publicClient: mockPublic as unknown as import('viem').PublicClient,
+      stopOnFail: false,
+    };
+
+    const hashes = await executeTxPlan(preparedPayout, executeOptions);
+
+    // Should return empty array when all transactions fail
+    expect(hashes.length).toBe(0);
+  });
+
+  test('should import all required functions from package root', () => {
+    // This test verifies the main requirement from the issue
+    // that all functions can be imported from the package root
+    expect(typeof buildManifest).toBe('function');
+    expect(typeof toCSV).toBe('function');
+    expect(typeof preparePushTxs).toBe('function');
+    expect(typeof executeTxPlan).toBe('function');
+    expect(typeof reconcilePush).toBe('function');
+  });
+
+  test('should export CSV with correct format', () => {
+    const buildResult = buildManifest([mockWinners[0]!], {
+      token: mockToken,
+      roundId: 'round-123',
+      groupId: 'group-456',
+    });
+
+    const csvData = toCSV(buildResult.manifest);
+    
+    // Test canonical format: address,amountWei,symbol,roundId,groupId
+    expect(csvData).toContain('address,amountWei,symbol,roundId,groupId');
+    expect(csvData.toLowerCase()).toContain('0xd8da6bf26964af9d7eed9e03e53415d37aa96045');
+    expect(csvData).toContain('USDC');
+    expect(csvData).toContain('round-123');
+    expect(csvData).toContain('group-456');
+  });
+});
\ No newline at end of file
diff --git a/src/__tests__/payouts/exporters.test.ts b/src/__tests__/payouts/exporters.test.ts
index df954fe..46a2dd6 100644
--- a/src/__tests__/payouts/exporters.test.ts
+++ b/src/__tests__/payouts/exporters.test.ts
@@ -76,8 +76,8 @@ describe('Payouts Exporters', () => {
       const lines = csv.split('\n');
       expect(lines).toHaveLength(3); // header + 2 winners
       
-      // Check first winner row
-      expect(lines[1]).toBe('0x742d35cc6584C0532E47A89c9Fdd3D3f8C6c1B66,100500000000000000000,SUPR,round-123,group-456');
+      // Check first winner row (using proper EIP-55 checksummed address)
+      expect(lines[1]).toBe('0x742D35Cc6584c0532e47a89c9Fdd3d3F8c6c1B66,100500000000000000000,SUPR,round-123,group-456');
       
       // Check second winner row
       expect(lines[2]).toBe('0x1234567890123456789012345678901234567890,50250000000000000000,SUPR,round-123,group-456');
diff --git a/src/payouts/builder.ts b/src/payouts/builder.ts
index 0351094..6309d7e 100644
--- a/src/payouts/builder.ts
+++ b/src/payouts/builder.ts
@@ -53,29 +53,34 @@ export function validateAndChecksumAddress(address: string): string | null {
 }
 
 /**
- * Convert address to checksum format (EIP-55)
- * Note: This is a simplified implementation for demo purposes.
- * In production, you should use a proper Keccak-256 implementation.
+ * Convert address to checksum format (EIP-55) using viem's implementation
  */
 function toChecksumAddress(address: string): string {
-  const cleanAddress = address.replace(/^0x/i, '').toLowerCase();
-  
-  // For this implementation, we'll return a properly formatted address
-  // In production, this should use Keccak-256 hash for proper EIP-55 checksumming
-  let result = '0x';
-  for (let i = 0; i < cleanAddress.length; i++) {
-    const char = cleanAddress[i];
-    if (!char) continue;
+  // Use viem's getAddress which provides proper EIP-55 checksumming
+  try {
+    const { getAddress } = require('viem');
+    return getAddress(address);
+  } catch (error) {
+    // Fallback to original implementation if viem is not available
+    const cleanAddress = address.replace(/^0x/i, '').toLowerCase();
     
-    // Simple pattern for demo - alternate case based on position
-    if (i % 4 < 2) {
-      result += char.toUpperCase();
-    } else {
-      result += char;
+    // For this implementation, we'll return a properly formatted address
+    // In production, this should use Keccak-256 hash for proper EIP-55 checksumming
+    let result = '0x';
+    for (let i = 0; i < cleanAddress.length; i++) {
+      const char = cleanAddress[i];
+      if (!char) continue;
+      
+      // Simple pattern for demo - alternate case based on position
+      if (i % 4 < 2) {
+        result += char.toUpperCase();
+      } else {
+        result += char;
+      }
     }
+    
+    return result;
   }
-  
-  return result;
 }
 
 /**
diff --git a/src/payouts/execute.ts b/src/payouts/execute.ts
index 328eaa9..697b9b2 100644
--- a/src/payouts/execute.ts
+++ b/src/payouts/execute.ts
@@ -76,7 +76,7 @@ export async function executeTxPlan(
       }
 
       // Send transaction
-      const hash = await wallet.sendTransaction(viemTx as any);
+      const hash = await wallet.sendTransaction(viemTx as Parameters<typeof wallet.sendTransaction>[0]);
       successfulHashes.push(hash);
 
       // Fire progress callback with hash
diff --git a/src/payouts/tx-preparer.ts b/src/payouts/tx-preparer.ts
index 6498c5a..52989d8 100644
--- a/src/payouts/tx-preparer.ts
+++ b/src/payouts/tx-preparer.ts
@@ -84,7 +84,7 @@ export function preparePushTxs(
   opts: PushPrepareOptions
 ): PreparedPayout {
   const { airdrop: providedAirdrop, token, maxPerBatch = 50, singleApproval = true } = opts;
-  const totalWei = manifest.totals.amountWei;
+  const totalWei = manifest.totalAmount;
   const transactions: PreparedTx[] = [];
   const errors: string[] = [];
   const warnings: string[] = [];
diff --git a/src/utils/helpers.ts b/src/utils/helpers.ts
index 92680c9..67a35e4 100644
--- a/src/utils/helpers.ts
+++ b/src/utils/helpers.ts
@@ -126,14 +126,10 @@ export function deepMerge<T extends object>(target: T, source: Partial<T>): T {
 }
 
 /**
- * Extract Ethereum address from event log topic
+ * Extract an Ethereum address from a bytes32 topic (e.g., from event logs)
  * 
- * Event log topics contain addresses padded to 32 bytes (64 hex characters).
- * This function extracts the actual 20-byte address from the padded topic.
- * 
- * @param topic - The hex string topic from an event log (should be 66 chars: 0x + 64 hex)
- * @returns The extracted Ethereum address (20 bytes, 42 chars including 0x prefix)
- * @throws Error if the topic is not properly formatted
+ * @param topic - The bytes32 topic string (66 chars: 0x + 64 hex chars)
+ * @returns The extracted Ethereum address (0x + 40 hex chars)
  */
 export function extractAddressFromTopic(topic: string): `0x${string}` {
   if (!topic || typeof topic !== 'string') {