diff --git a/src/content/docs/build/guides/first-transaction.mdx b/src/content/docs/build/guides/first-transaction.mdx
index 73988111..a54bbee1 100644
--- a/src/content/docs/build/guides/first-transaction.mdx
+++ b/src/content/docs/build/guides/first-transaction.mdx
@@ -746,7 +746,7 @@ This tutorial will guide you through creating and submitting your first transact
          ```
 
          <Aside type="note">
-           Notice that Alice's balance decreased by more than 1000 octas. The extra amount is the gas fee paid to process the transaction. Behind the scenes, when checking balances, the SDK queries the CoinStore resource for the AptosCoin (`0x1::coin::CoinStore<0x1::aptos_coin::AptosCoin>`) and reads the current stored value. This demonstrates how the SDK abstracts away complex blockchain interactions into simple function calls.
+           Notice that Alice's balance decreased by more than 1000 octas. The extra amount is the gas fee paid to process the transaction. When checking balances, the TypeScript SDK uses `getAccountAPTAmount`, which resolves APT after the Fungible Asset migration and does not rely on the legacy `CoinStore` resource (new accounts may not have it).
          </Aside>
     </Steps>
   </TabItem>
@@ -847,7 +847,7 @@ This tutorial will guide you through creating and submitting your first transact
          ```
 
          <Aside type="note">
-           Notice that Alice's balance decreased by more than 1000 octas. The extra amount is the gas fee paid to process the transaction. Behind the scenes, when checking balances, the SDK queries the CoinStore resource for the AptosCoin (`0x1::coin::CoinStore<0x1::aptos_coin::AptosCoin>`) and reads the current stored value.
+           Notice that Alice's balance decreased by more than 1000 octas. The extra amount is the gas fee paid to process the transaction. When checking balances, the Python SDK's `account_balance` uses the node's balance APIs, which reflect APT after the Fungible Asset migration rather than only the legacy `CoinStore` resource.
          </Aside>
     </Steps>
   </TabItem>
diff --git a/src/content/docs/build/sdks/ts-sdk/account/account-abstraction.mdx b/src/content/docs/build/sdks/ts-sdk/account/account-abstraction.mdx
index ffb2217e..11706819 100644
--- a/src/content/docs/build/sdks/ts-sdk/account/account-abstraction.mdx
+++ b/src/content/docs/build/sdks/ts-sdk/account/account-abstraction.mdx
@@ -248,8 +248,7 @@ const abstractedAccount = new AbstractedAccount({
      const coinTransferTransaction = await aptos.transaction.build.simple({
        sender: abstractedAccount.accountAddress,
        data: {
-         function: "0x1::coin::transfer",
-         typeArguments: ["0x1::aptos_coin::AptosCoin"],
+         function: "0x1::aptos_account::transfer",
          functionArguments: [alice.accountAddress, 100],
        },
      });
@@ -595,11 +594,10 @@ In this example, we will create an authenticator that allows users to permit cer
      is the same as the abstracted account's address.
 
      ```typescript
-     const coinTransferTransaction = new aptos.transaction.build.simple({
+     const coinTransferTransaction = await aptos.transaction.build.simple({
        sender: abstractedAccount.accountAddress,
        data: {
-         function: "0x1::coin::transfer",
-         typeArguments: ["0x1::aptos_coin::AptosCoin"],
+         function: "0x1::aptos_account::transfer",
          functionArguments: [alice.accountAddress, 100],
        },
      });
diff --git a/src/content/docs/build/sdks/ts-sdk/fetch-data-via-sdk.mdx b/src/content/docs/build/sdks/ts-sdk/fetch-data-via-sdk.mdx
index 21ec1198..ce75732f 100644
--- a/src/content/docs/build/sdks/ts-sdk/fetch-data-via-sdk.mdx
+++ b/src/content/docs/build/sdks/ts-sdk/fetch-data-via-sdk.mdx
@@ -42,18 +42,27 @@ The `Aptos` client can out of the box query both network data from [fullnodes](h
 
 ## Using Generic Queries
 
-Some queries are intentionally broad, but this can make inferring the proper return type difficult. To accommodate that, these broad requests like `getAccountResources` allow you to specify what the expected response type should be.
+Some queries are intentionally broad, but this can make inferring the proper return type difficult. To accommodate that, broad requests like `getAccountResources` allow you to specify what the expected response type should be when you use `getAccountResource`.
+
+After the [Fungible Asset migration](/build/smart-contracts/fungible-asset), use [`getAccountAPTAmount`](https://aptos-labs.github.io/aptos-ts-sdk/) for APT balances. New accounts may not publish the legacy `0x1::coin::CoinStore<0x1::aptos_coin::AptosCoin>` resource, so reading it with `getAccountResource` can return "resource not found".
+
+```typescript filename="fetch-data.ts"
+const aptAmount = await aptos.getAccountAPTAmount({
+  accountAddress: testAccount.accountAddress,
+});
+```
+
+For other on-chain resources, use `getAccountResource` with a generic type parameter:
 
 ```typescript filename="fetch-data.ts"
-type Coin = { coin: { value: string } };
+type OnChainAccount = { sequence_number: string; authentication_key: string };
 
-const resource = await aptos.getAccountResource<Coin>({
+const accountResource = await aptos.getAccountResource<OnChainAccount>({
   accountAddress: testAccount.accountAddress,
-  resourceType: "0x1::coin::CoinStore<0x1::aptos_coin::AptosCoin>",
+  resourceType: "0x1::account::Account",
 });
 
-// Now you have access to the response type property
-const value = resource.coin.value;
+const sequenceNumber = accountResource.sequence_number;
 ```
 
 ## Using Move View Functions
diff --git a/src/content/docs/build/sdks/ts-sdk/quickstart.mdx b/src/content/docs/build/sdks/ts-sdk/quickstart.mdx
index 44f49d98..c9db82d3 100644
--- a/src/content/docs/build/sdks/ts-sdk/quickstart.mdx
+++ b/src/content/docs/build/sdks/ts-sdk/quickstart.mdx
@@ -159,6 +159,8 @@ import { Aside, Steps, TabItem, Tabs } from '@astrojs/starlight/components';
          function: "0x1::aptos_account::transfer",
          functionArguments: [bob.accountAddress, 100],
        },
+       // Lower default gas fits typical devnet faucet funding (1 APT)
+       options: { maxGasAmount: 100_000 },
      });
      ...
      ```
@@ -229,8 +231,6 @@ import { Aside, Steps, TabItem, Tabs } from '@astrojs/starlight/components';
 
 import { Account, Aptos, AptosConfig, Network } from "@aptos-labs/ts-sdk";
 
-const APTOS_COIN = "0x1::aptos_coin::AptosCoin";
-const COIN_STORE = `0x1::coin::CoinStore<${APTOS_COIN}>`;
 const ALICE_INITIAL_BALANCE = 100_000_000;
 const BOB_INITIAL_BALANCE = 100;
 const TRANSFER_AMOUNT = 100;
@@ -267,20 +267,17 @@ async function example() {
   });
   console.log("Alice and Bob's accounts have been funded!");
 
-  // Look up the newly funded account's balances
+  // Look up the newly funded account's balances (uses Fungible Asset balance APIs;
+  // legacy CoinStore resources may be absent on new accounts)
   console.log("\n=== Balances ===\n");
-  const aliceAccountBalance = await aptos.getAccountResource({
+  const aliceBalance = await aptos.getAccountAPTAmount({
     accountAddress: alice.accountAddress,
-    resourceType: COIN_STORE,
   });
-  const aliceBalance = Number(aliceAccountBalance.coin.value);
   console.log(`Alice's balance is: ${aliceBalance}`);
 
-  const bobAccountBalance = await aptos.getAccountResource({
+  const bobBalance = await aptos.getAccountAPTAmount({
     accountAddress: bob.accountAddress,
-    resourceType: COIN_STORE,
   });
-  const bobBalance = Number(bobAccountBalance.coin.value);
   console.log(`Bob's balance is: ${bobBalance}`);
 
   // Send a transaction from Alice's account to Bob's account
@@ -289,8 +286,9 @@ async function example() {
     data: {
       // All transactions on Aptos are implemented via smart contracts.
       function: "0x1::aptos_account::transfer",
-      functionArguments: [bob.accountAddress, 100],
+      functionArguments: [bob.accountAddress, TRANSFER_AMOUNT],
     },
+    options: { maxGasAmount: 100_000 },
   });
 
   console.log("\n=== Transfer transaction ===\n");
@@ -306,18 +304,14 @@ async function example() {
   console.log("Transaction hash:", executedTransaction.hash);
 
   console.log("\n=== Balances after transfer ===\n");
-  const newAliceAccountBalance = await aptos.getAccountResource({
+  const newAliceBalance = await aptos.getAccountAPTAmount({
     accountAddress: alice.accountAddress,
-    resourceType: COIN_STORE,
   });
-  const newAliceBalance = Number(newAliceAccountBalance.coin.value);
   console.log(`Alice's balance is: ${newAliceBalance}`);
 
-  const newBobAccountBalance = await aptos.getAccountResource({
+  const newBobBalance = await aptos.getAccountAPTAmount({
     accountAddress: bob.accountAddress,
-    resourceType: COIN_STORE,
   });
-  const newBobBalance = Number(newBobAccountBalance.coin.value);
   console.log(`Bob's balance is: ${newBobBalance}`);
 
   // Bob should have the transfer amount
diff --git a/src/content/docs/zh/build/guides/first-transaction.mdx b/src/content/docs/zh/build/guides/first-transaction.mdx
index 1d416544..8ade70cb 100644
--- a/src/content/docs/zh/build/guides/first-transaction.mdx
+++ b/src/content/docs/zh/build/guides/first-transaction.mdx
@@ -137,7 +137,6 @@ import { Aside, Steps, TabItem, Tabs } from '@astrojs/starlight/components';
     from aptos_sdk.account import Account
     from aptos_sdk.client import RestClient
     from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
-    from aptos_sdk.type_tag import TypeTag, StructTag
     ```
   </TabItem>
 </Tabs>
@@ -237,8 +236,7 @@ import { Aside, Steps, TabItem, Tabs } from '@astrojs/starlight/components';
       const transaction = await aptos.transaction.build.simple({
         sender: alice.accountAddress,
         data: {
-          function: "0x1::coin::transfer",
-          typeArguments: ["0x1::aptos_coin::AptosCoin"],
+          function: "0x1::aptos_account::transfer",
           functionArguments: [bob.accountAddress, 1_000_000], // 0.01 APT
         },
       });
@@ -274,9 +272,9 @@ import { Aside, Steps, TabItem, Tabs } from '@astrojs/starlight/components';
     async def transfer_coins(alice, bob):
         # 构建交易
         payload = EntryFunction.natural(
-            "0x1::coin",
+            "0x1::aptos_account",
             "transfer",
-            [TypeTag(StructTag.from_str("0x1::aptos_coin::AptosCoin"))],
+            [],
             [
                 TransactionArgument(bob.address(), "address"),
                 TransactionArgument(1_000_000, "u64"),  # 0.01 APT
@@ -388,8 +386,7 @@ import { Aside, Steps, TabItem, Tabs } from '@astrojs/starlight/components';
       const transaction = await aptos.transaction.build.simple({
         sender: alice.accountAddress,
         data: {
-          function: "0x1::coin::transfer",
-          typeArguments: ["0x1::aptos_coin::AptosCoin"],
+          function: "0x1::aptos_account::transfer",
           functionArguments: [bob.accountAddress, 1_000_000], // 0.01 APT
         },
       });
diff --git a/src/content/docs/zh/build/sdks/ts-sdk/account/account-abstraction.mdx b/src/content/docs/zh/build/sdks/ts-sdk/account/account-abstraction.mdx
index 0ebdb385..b59b58e5 100644
--- a/src/content/docs/zh/build/sdks/ts-sdk/account/account-abstraction.mdx
+++ b/src/content/docs/zh/build/sdks/ts-sdk/account/account-abstraction.mdx
@@ -240,8 +240,7 @@ const abstractedAccount = new AbstractedAccount({
      const coinTransferTransaction = await aptos.transaction.build.simple({
        sender: abstractedAccount.accountAddress,
        data: {
-         function: "0x1::coin::transfer",
-         typeArguments: ["0x1::aptos_coin::AptosCoin"],
+         function: "0x1::aptos_account::transfer",
          functionArguments: [alice.accountAddress, 100],
        },
      });
@@ -577,11 +576,10 @@ const abstractedAccount = new AbstractedAccount({
      创建抽象账户后,我们可以正常使用它来签署交易.需要注意的是,交易中的 `sender` 字段必须与抽象账户地址一致.
 
      ```typescript
-     const coinTransferTransaction = new aptos.transaction.build.simple({
+     const coinTransferTransaction = await aptos.transaction.build.simple({
        sender: abstractedAccount.accountAddress,
        data: {
-         function: "0x1::coin::transfer",
-         typeArguments: ["0x1::aptos_coin::AptosCoin"],
+         function: "0x1::aptos_account::transfer",
          functionArguments: [alice.accountAddress, 100],
        },
      });
diff --git a/src/content/docs/zh/build/sdks/ts-sdk/fetch-data-via-sdk.mdx b/src/content/docs/zh/build/sdks/ts-sdk/fetch-data-via-sdk.mdx
index 9b51432d..6a2b8bac 100644
--- a/src/content/docs/zh/build/sdks/ts-sdk/fetch-data-via-sdk.mdx
+++ b/src/content/docs/zh/build/sdks/ts-sdk/fetch-data-via-sdk.mdx
@@ -42,18 +42,27 @@ const tokens = await aptos.getAccountOwnedTokens({ accountAddress: "0x123" });
 
 ## 使用通用查询
 
-某些查询设计上是宽泛的,但这可能使得推断正确的返回类型变得困难.为了适应这种情况,像 `getAccountResources` 这样的广泛请求允许你指定预期的响应类型.
+某些查询设计上是宽泛的,但这可能使得推断正确的返回类型变得困难.为了适应这种情况,像 `getAccountResources` 这样的广泛请求允许你在使用 `getAccountResource` 时指定预期的响应类型.
+
+在[同质化资产迁移](/zh/build/smart-contracts/fungible-asset)之后,请使用 [`getAccountAPTAmount`](https://aptos-labs.github.io/aptos-ts-sdk/) 查询 APT 余额.新账户可能不会发布旧版 `0x1::coin::CoinStore<0x1::aptos_coin::AptosCoin>` 资源,因此用 `getAccountResource` 读取它可能返回「资源未找到」.
+
+```typescript filename="fetch-data.ts"
+const aptAmount = await aptos.getAccountAPTAmount({
+  accountAddress: testAccount.accountAddress,
+});
+```
+
+对于其他链上资源,可使用带泛型类型参数的 `getAccountResource`:
 
 ```typescript filename="fetch-data.ts"
-type Coin = { coin: { value: string } };
+type OnChainAccount = { sequence_number: string; authentication_key: string };
 
-const resource = await aptos.getAccountResource<Coin>({
+const accountResource = await aptos.getAccountResource<OnChainAccount>({
   accountAddress: testAccount.accountAddress,
-  resourceType: "0x1::coin::CoinStore<0x1::aptos_coin::AptosCoin>",
+  resourceType: "0x1::account::Account",
 });
 
-// 现在你可以访问响应类型属性
-const value = resource.coin.value;
+const sequenceNumber = accountResource.sequence_number;
 ```
 
 ## 使用 Move 视图函数
diff --git a/src/content/docs/zh/build/sdks/ts-sdk/quickstart.mdx b/src/content/docs/zh/build/sdks/ts-sdk/quickstart.mdx
index cf3e8b41..05256eb6 100644
--- a/src/content/docs/zh/build/sdks/ts-sdk/quickstart.mdx
+++ b/src/content/docs/zh/build/sdks/ts-sdk/quickstart.mdx
@@ -155,6 +155,8 @@ import { Aside, Steps, TabItem, Tabs } from '@astrojs/starlight/components';
          function: "0x1::aptos_account::transfer",
          functionArguments: [bob.accountAddress, 100],
        },
+       // 降低默认 gas 上限以适配常见 devnet 水龙头额度（1 APT）
+       options: { maxGasAmount: 100_000 },
      });
      ...
      ```
@@ -225,8 +227,6 @@ import { Aside, Steps, TabItem, Tabs } from '@astrojs/starlight/components';
 
 import { Account, Aptos, AptosConfig, Network } from "@aptos-labs/ts-sdk";
 
-const APTOS_COIN = "0x1::aptos_coin::AptosCoin";
-const COIN_STORE = `0x1::coin::CoinStore<${APTOS_COIN}>`;
 const ALICE_INITIAL_BALANCE = 100_000_000;
 const BOB_INITIAL_BALANCE = 100;
 const TRANSFER_AMOUNT = 100;
@@ -263,20 +263,16 @@ async function example() {
   });
   console.log("Alice 和 Bob 的账户已成功注资！");
 
-  // 查询新注资账户的余额
+  // 查询新注资账户的余额（使用同质化资产余额接口；新账户可能没有旧版 CoinStore 资源）
   console.log("\n=== 余额 ===\n");
-  const aliceAccountBalance = await aptos.getAccountResource({
+  const aliceBalance = await aptos.getAccountAPTAmount({
     accountAddress: alice.accountAddress,
-    resourceType: COIN_STORE,
   });
-  const aliceBalance = Number(aliceAccountBalance.coin.value);
   console.log(`Alice 的余额是: ${aliceBalance}`);
 
-  const bobAccountBalance = await aptos.getAccountResource({
+  const bobBalance = await aptos.getAccountAPTAmount({
     accountAddress: bob.accountAddress,
-    resourceType: COIN_STORE,
   });
-  const bobBalance = Number(bobAccountBalance.coin.value);
   console.log(`Bob 的余额是: ${bobBalance}`);
 
   // 从 Alice 账户向 Bob 账户发送交易
@@ -285,8 +281,9 @@ async function example() {
     data: {
       // Aptos 上的所有交易都是通过智能合约实现的。
       function: "0x1::aptos_account::transfer",
-      functionArguments: [bob.accountAddress, 100],
+      functionArguments: [bob.accountAddress, TRANSFER_AMOUNT],
     },
+    options: { maxGasAmount: 100_000 },
   });
 
   console.log("\n=== 转账交易 ===\n");
@@ -299,19 +296,16 @@ async function example() {
   const executedTransaction = await aptos.waitForTransaction({
     transactionHash: committedTxn.hash,
   });
-  console.log("交易哈希:", executedTransaction.hash);  console.log("\n=== 转账后余额 ===\n");
-  const newAliceAccountBalance = await aptos.getAccountResource({
+  console.log("交易哈希:", executedTransaction.hash);
+  console.log("\n=== 转账后余额 ===\n");
+  const newAliceBalance = await aptos.getAccountAPTAmount({
     accountAddress: alice.accountAddress,
-    resourceType: COIN_STORE,
   });
-  const newAliceBalance = Number(newAliceAccountBalance.coin.value);
   console.log(`Alice 的余额是: ${newAliceBalance}`);
 
-  const newBobAccountBalance = await aptos.getAccountResource({
+  const newBobBalance = await aptos.getAccountAPTAmount({
     accountAddress: bob.accountAddress,
-    resourceType: COIN_STORE,
   });
-  const newBobBalance = Number(newBobAccountBalance.coin.value);
   console.log(`Bob 的余额是: ${newBobBalance}`);
 
   // Bob 应该收到转账金额