diff --git a/abi-USDT-polygon-amoy.js b/abi-USDT-polygon-amoy.js
new file mode 100644
index 0000000..cb02a91
--- /dev/null
+++ b/abi-USDT-polygon-amoy.js
@@ -0,0 +1,397 @@
+module.exports = [
+  {
+    constant: true,
+    inputs: [],
+    name: 'name',
+    outputs: [
+      {
+        name: '',
+        type: 'string',
+      },
+    ],
+    payable: false,
+    stateMutability: 'view',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: '_spender',
+        type: 'address',
+      },
+      {
+        name: '_value',
+        type: 'uint256',
+      },
+    ],
+    name: 'approve',
+    outputs: [
+      {
+        name: 'success',
+        type: 'bool',
+      },
+    ],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: 'totalSupply',
+    outputs: [
+      {
+        name: '',
+        type: 'uint256',
+      },
+    ],
+    payable: false,
+    stateMutability: 'view',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: '_from',
+        type: 'address',
+      },
+      {
+        name: '_to',
+        type: 'address',
+      },
+      {
+        name: '_value',
+        type: 'uint256',
+      },
+    ],
+    name: 'transferFrom',
+    outputs: [
+      {
+        name: 'success',
+        type: 'bool',
+      },
+    ],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: 'decimals',
+    outputs: [
+      {
+        name: '',
+        type: 'uint8',
+      },
+    ],
+    payable: false,
+    stateMutability: 'view',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: '_value',
+        type: 'uint256',
+      },
+    ],
+    name: 'burn',
+    outputs: [
+      {
+        name: 'success',
+        type: 'bool',
+      },
+    ],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: '_value',
+        type: 'uint256',
+      },
+    ],
+    name: 'unfreeze',
+    outputs: [
+      {
+        name: 'success',
+        type: 'bool',
+      },
+    ],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: 'amount',
+        type: 'uint256',
+      },
+    ],
+    name: 'withdrawByOwner',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        name: '',
+        type: 'address',
+      },
+    ],
+    name: 'balanceOf',
+    outputs: [
+      {
+        name: '',
+        type: 'uint256',
+      },
+    ],
+    payable: false,
+    stateMutability: 'view',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: 'tokenSymbolNew',
+        type: 'string',
+      },
+    ],
+    name: 'resetTokenSymbol',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: 'owner',
+    outputs: [
+      {
+        name: '',
+        type: 'address',
+      },
+    ],
+    payable: false,
+    stateMutability: 'view',
+    type: 'function',
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: 'symbol',
+    outputs: [
+      {
+        name: '',
+        type: 'string',
+      },
+    ],
+    payable: false,
+    stateMutability: 'view',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: '_to',
+        type: 'address',
+      },
+      {
+        name: '_value',
+        type: 'uint256',
+      },
+    ],
+    name: 'transfer',
+    outputs: [
+      {
+        name: 'success',
+        type: 'bool',
+      },
+    ],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        name: '',
+        type: 'address',
+      },
+    ],
+    name: 'freezeOf',
+    outputs: [
+      {
+        name: '',
+        type: 'uint256',
+      },
+    ],
+    payable: false,
+    stateMutability: 'view',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: 'tokenNameNew',
+        type: 'string',
+      },
+    ],
+    name: 'resetTokenName',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        name: '_value',
+        type: 'uint256',
+      },
+    ],
+    name: 'freeze',
+    outputs: [
+      {
+        name: 'success',
+        type: 'bool',
+      },
+    ],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        name: '',
+        type: 'address',
+      },
+      {
+        name: '',
+        type: 'address',
+      },
+    ],
+    name: 'allowance',
+    outputs: [
+      {
+        name: '',
+        type: 'uint256',
+      },
+    ],
+    payable: false,
+    stateMutability: 'view',
+    type: 'function',
+  },
+  {
+    inputs: [
+      {
+        name: 'tokenSymbol',
+        type: 'string',
+      },
+      {
+        name: 'tokenName',
+        type: 'string',
+      },
+      {
+        name: 'tokenSupply',
+        type: 'uint256',
+      },
+    ],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'constructor',
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        name: 'from',
+        type: 'address',
+      },
+      {
+        indexed: true,
+        name: 'to',
+        type: 'address',
+      },
+      {
+        indexed: false,
+        name: 'value',
+        type: 'uint256',
+      },
+    ],
+    name: 'Transfer',
+    type: 'event',
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        name: 'from',
+        type: 'address',
+      },
+      {
+        indexed: false,
+        name: 'value',
+        type: 'uint256',
+      },
+    ],
+    name: 'Burn',
+    type: 'event',
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        name: 'from',
+        type: 'address',
+      },
+      {
+        indexed: false,
+        name: 'value',
+        type: 'uint256',
+      },
+    ],
+    name: 'Freeze',
+    type: 'event',
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        name: 'from',
+        type: 'address',
+      },
+      {
+        indexed: false,
+        name: 'value',
+        type: 'uint256',
+      },
+    ],
+    name: 'Unfreeze',
+    type: 'event',
+  },
+]
diff --git a/chaindata.js b/chaindata.js
index 7e2db3a..ae7d8dd 100644
--- a/chaindata.js
+++ b/chaindata.js
@@ -1,5 +1,6 @@
 module.exports = {
   ETH_MAINNET: {
+    chainId: 1,
     USDT: {
       scanner: 'https://etherscan.io/token/0xdAC17F958D2ee523a2206206994597C13D831ec7',
       contractAddress: '0xdAC17F958D2ee523a2206206994597C13D831ec7', // https://tether.to/en/supported-protocols
@@ -22,6 +23,7 @@ module.exports = {
     },
   },
   MATIC_MAINNET: {
+    chainId: 137,
     USDT: {
       scanner: 'https://polygonscan.com/token/0xc2132d05d31c914a87c6611c10748aeb04b58e8f',
       contractAddress: '0xc2132D05D31c914a87C6611C10748AEb04B58e8F',
@@ -34,14 +36,24 @@ module.exports = {
     },
   },
   ETH_SEPOLIA: {
+    chainId: 11155111,
     USDT: {
       about: 'deployed by someone else. I learned this from a youtube video',
+      scanner: 'https://sepolia.etherscan.io/token/0xaA8E23Fb1079EA71e0a56F48a2aA51851D8433D0',
       contractAddress: '0xaA8E23Fb1079EA71e0a56F48a2aA51851D8433D0',
       contractAbi: require('./abi-USDT-sepolia.js'),
     },
   },
-  MATIC_AMOY: {},
+  MATIC_AMOY: {
+    chainId: 80002,
+    USDT: {
+      about: '20241005 我从hardhat用VIC合约部署成 USDT',
+      contractAddress: '0xceC7b5e60d0C6875CBbCA9619cb11389d21d8051',
+      contractAbi: require('./abi-USDT-polygon-amoy.js'),
+    },
+  },
   TUC_TEST: {
+    chainId: 6882,
     ERC20: {
       VIC: {
         about: 'installed on 2024-10-03 to test wagmi send ERC20 transaction',