diff --git a/src/rest-client-v5.ts b/src/rest-client-v5.ts
index 703eb58..e65f611 100644
--- a/src/rest-client-v5.ts
+++ b/src/rest-client-v5.ts
@@ -65,6 +65,20 @@ import {
   ExecutionV5,
   GetClosedPnLParamsV5,
   ClosedPnLV5,
+  GetWalletBalanceParamsV5,
+  WalletBalanceV5,
+  UnifiedAccountUpgradeResultV5,
+  GetBorrowHistoryParamsV5,
+  BorrowHistoryRecordV5,
+  CollateralInfoV5,
+  CoinGreeksV5,
+  FeeRateV5,
+  AccountInfoV5,
+  GetTransactionLogParamsV5,
+  TransactionLogV5,
+  AccountMarginModeV5,
+  MMPModifyParamsV5,
+  MMPStateV5,
 } from './types';
 import { REST_CLIENT_TYPE_ENUM } from './util';
 import BaseRestClient from './util/BaseRestClient';
@@ -544,6 +558,134 @@ export class RestClientV5 extends BaseRestClient {
     return this.getPrivate('/v5/position/closed-pnl', params);
   }
 
+  /**
+   *
+   * Account APIs
+   *
+   */
+
+  /**
+   * Obtain wallet balance, query asset information of each currency, and account risk rate information under unified margin mode.
+   *
+   * By default, currency information with assets or liabilities of 0 is not returned.
+   */
+  getWalletBalance(
+    params: GetWalletBalanceParamsV5
+  ): Promise<APIResponseV3WithTime<WalletBalanceV5>> {
+    return this.getPrivate('/v5/account/wallet-balance', params);
+  }
+
+  /**
+   * Upgrade to unified account.
+   *
+   * Banned/OTC loan/Net asset unsatisfying/Express path users cannot upgrade the account to Unified Account for now.
+   */
+  upgradeToUnifiedAccount(): Promise<
+    APIResponseV3WithTime<UnifiedAccountUpgradeResultV5>
+  > {
+    return this.postPrivate('/v5/account/upgrade-to-uta');
+  }
+
+  /**
+   * Get interest records, sorted in reverse order of creation time.
+   *
+   * Unified account
+   */
+  getBorrowHistory(
+    params?: GetBorrowHistoryParamsV5
+  ): Promise<APIResponseV3WithTime<CursorListV5<BorrowHistoryRecordV5[]>>> {
+    return this.getPrivate('/v5/account/borrow-history', params);
+  }
+
+  /**
+   * Get the collateral information of the current unified margin account, including loan interest rate,
+   * loanable amount, collateral conversion rate, whether it can be mortgaged as margin, etc.
+   */
+  getCollateralInfo(
+    currency?: string
+  ): Promise<APIResponseV3WithTime<{ list: CollateralInfoV5[] }>> {
+    return this.getPrivate('/v5/account/collateral-info', { currency });
+  }
+
+  /**
+   * Get current account Greeks information
+   */
+  getCoinGreeks(
+    baseCoin?: string
+  ): Promise<APIResponseV3WithTime<{ list: CoinGreeksV5[] }>> {
+    return this.getPrivate(
+      '/v5/asset/coin-greeks',
+      baseCoin ? { baseCoin } : undefined
+    );
+  }
+
+  /**
+   * Get the trading fee rate of derivatives.
+   * Covers: USDT perpetual / Inverse perpetual / Inverse futures
+   */
+  getFeeRate(
+    symbol?: string
+  ): Promise<APIResponseV3WithTime<{ list: FeeRateV5[] }>> {
+    return this.getPrivate(
+      '/v5/account/fee-rate',
+      symbol ? { symbol } : undefined
+    );
+  }
+
+  /**
+   * Query the margin mode and the upgraded status of account
+   */
+  getAccountInfo(): Promise<APIResponseV3<AccountInfoV5>> {
+    return this.getPrivate('/v5/account/info');
+  }
+
+  /**
+   * Query transaction logs in Unified account.
+   */
+  getTransactionLog(
+    params?: GetTransactionLogParamsV5
+  ): Promise<APIResponseV3WithTime<CursorListV5<TransactionLogV5[]>>> {
+    return this.getPrivate('/v5/account/transaction-log', params);
+  }
+
+  /**
+   * Default is regular margin mode.
+   *
+   * This mode is valid for USDT Perp, USDC Perp and USDC Option.
+   */
+  setMarginMode(
+    marginMode: AccountMarginModeV5
+  ): Promise<
+    APIResponseV3<{ reasons: { reasonCode: string; reasonMsg: string }[] }>
+  > {
+    return this.postPrivate('/v5/account/set-margin-mode', {
+      setMarginMode: marginMode,
+    });
+  }
+
+  /**
+   * Configure Market Maker Protection (MMP)
+   */
+  setMMP(params: MMPModifyParamsV5): Promise<APIResponseV3<undefined>> {
+    return this.postPrivate('/v5/account/mmp-modify', params);
+  }
+
+  /**
+   * Once the mmp triggered, you can unfreeze the account via this endpoint
+   */
+  resetMMP(baseCoin: string): Promise<APIResponseV3<undefined>> {
+    return this.postPrivate('/v5/account/mmp-modify', { baseCoin });
+  }
+
+  /**
+   * Get MMP State
+   */
+  getMMPState(
+    baseCoin: string
+  ): Promise<APIResponseV3WithTime<{ result: MMPStateV5[] }>> {
+    return this.getPrivate('/v5/account/mmp-state', { baseCoin });
+  }
+
   //
   //
   //
diff --git a/src/types/request/index.ts b/src/types/request/index.ts
index 46749cf..a00cf23 100644
--- a/src/types/request/index.ts
+++ b/src/types/request/index.ts
@@ -8,6 +8,7 @@ export * from './usdc-perp';
 export * from './usdc-options';
 export * from './usdc-shared';
 export * from './unified-margin';
+export * from './v5-account';
 export * from './v5-market';
 export * from './v5-position';
 export * from './v5-trade';
diff --git a/src/types/request/v5-account.ts b/src/types/request/v5-account.ts
new file mode 100644
index 0000000..5213ce4
--- /dev/null
+++ b/src/types/request/v5-account.ts
@@ -0,0 +1,34 @@
+import { AccountTypeV5, CategoryV5, TransactionTypeV5 } from '../v5-shared';
+
+export interface GetWalletBalanceParamsV5 {
+  accountType: AccountTypeV5;
+  coin?: string;
+}
+
+export interface GetBorrowHistoryParamsV5 {
+  currency?: string;
+  startTime?: number;
+  endTime?: number;
+  limit?: number;
+  cursor?: string;
+}
+
+export interface GetTransactionLogParamsV5 {
+  accountType?: AccountTypeV5;
+  category?: CategoryV5;
+  currency?: string;
+  baseCoin?: string;
+  type?: TransactionTypeV5;
+  startTime?: number;
+  endTime?: number;
+  limit?: number;
+  cursor?: string;
+}
+
+export interface MMPModifyParamsV5 {
+  baseCoin: string;
+  window: string;
+  frozenPeriod: string;
+  qtyLimit: string;
+  deltaLimit: string;
+}
diff --git a/src/types/response/index.ts b/src/types/response/index.ts
index d93addb..d882d87 100644
--- a/src/types/response/index.ts
+++ b/src/types/response/index.ts
@@ -4,6 +4,7 @@ export * from './shared';
 export * from './spot';
 export * from './usdt-perp';
 export * from './unified-margin';
+export * from './v5-account';
 export * from './v5-market';
 export * from './v5-position';
 export * from './v5-trade';
diff --git a/src/types/response/v5-account.ts b/src/types/response/v5-account.ts
new file mode 100644
index 0000000..7e99ea0
--- /dev/null
+++ b/src/types/response/v5-account.ts
@@ -0,0 +1,113 @@
+import { AccountTypeV5, CategoryV5, TransactionTypeV5 } from '../v5-shared';
+
+export interface WalletBalanceV5Coin {
+  coin: string;
+  equity: string;
+  usdValue: string;
+  walletBalance: string;
+  borrowAmount: string;
+  availableToBorrow: string;
+  availableToWithdraw: string;
+  accruedInterest: string;
+  totalOrderIM: string;
+  totalPositionIM: string;
+  totalPositionMM: string;
+  unrealisedPnl: string;
+  cumRealisedPnl: string;
+}
+
+export interface WalletBalanceV5 {
+  accountType: AccountTypeV5;
+  accountIMRate: string;
+  accountMMRate: string;
+  totalEquity: string;
+  totalWalletBalance: string;
+  totalMarginBalance: string;
+  totalAvailableBalance: string;
+  totalPerpUPL: string;
+  totalInitialMargin: string;
+  totalMaintenanceMargin: string;
+  coin: WalletBalanceV5Coin[];
+}
+
+export type UnifiedUpdateStatusV5 = 'FAIL' | 'PROCESS' | 'SUCCESS';
+
+export interface UnifiedAccountUpgradeResultV5 {
+  unifiedUpdateStatus: UnifiedUpdateStatusV5;
+  unifiedUpdateMsg: {
+    msg: string[] | null;
+  };
+}
+
+export interface BorrowHistoryRecordV5 {
+  currency: string;
+  createdTime: number;
+  borrowCost: string;
+  hourlyBorrowRate: string;
+  InterestBearingBorrowSize: string;
+  costExemption: string;
+}
+
+export interface CollateralInfoV5 {
+  currency: string;
+  hourlyBorrowRate: string;
+  maxBorrowingAmount: string;
+  freeBorrowingAmount: string;
+  borrowAmount: string;
+  availableToBorrow: string;
+  borrowable: boolean;
+  marginCollateral: boolean;
+  collateralRatio: string;
+}
+
+export interface CoinGreeksV5 {
+  baseCoin: string;
+  totalDelta: string;
+  totalGamma: string;
+  totalVega: string;
+  totalTheta: string;
+}
+
+export interface FeeRateV5 {
+  symbol: string;
+  takerFeeRate: string;
+  makerFeeRate: string;
+}
+
+export interface AccountInfoV5 {
+  unifiedMarginStatus: number;
+  marginMode: 'REGULAR_MARGIN' | 'PORTFOLIO_MARGIN';
+  updatedTime: string;
+}
+
+export interface TransactionLogV5 {
+  symbol: string;
+  category: CategoryV5;
+  side: string;
+  transactionTime: string;
+  type: TransactionTypeV5;
+  qty: string;
+  size: string;
+  currency: string;
+  tradePrice: string;
+  funding: string;
+  fee: string;
+  cashFlow: string;
+  change: string;
+  cashBalance: string;
+  feeRate: string;
+  tradeId: string;
+  orderId: string;
+  orderLinkId: string;
+}
+
+export interface MMPStateV5 {
+  baseCoin: string;
+  mmpEnabled: boolean;
+  window: string;
+  frozenPeriod: string;
+  qtyLimit: string;
+  deltaLimit: string;
+  mmpFrozenUntil: string;
+  mmpFrozen: boolean;
+}
diff --git a/src/types/v5-shared.ts b/src/types/v5-shared.ts
index 1fc21bb..99c23ee 100644
--- a/src/types/v5-shared.ts
+++ b/src/types/v5-shared.ts
@@ -11,6 +11,28 @@ export type PositionIdx = 0 | 1 | 2;
  */
 export type TradeModeV5 = 0 | 1;
 export type TPSLModeV5 = 'Full' | 'Partial';
+export type AccountMarginModeV5 = 'REGULAR_MARGIN' | 'PORTFOLIO_MARGIN';
+
+export type AccountTypeV5 =
+  | 'CONTRACT'
+  | 'SPOT'
+  | 'INVESTMENT'
+  | 'OPTION'
+  | 'UNIFIED'
+  | 'FUND';
+
+export type TransactionTypeV5 =
+  | 'TRANSFER_IN'
+  | 'TRANSFER_OUT'
+  | 'TRADE'
+  | 'SETTLEMENT'
+  | 'DELIVERY'
+  | 'LIQUIDATION'
+  | 'BONUS'
+  | 'FEE_REFUND'
+  | 'INTEREST'
+  | 'CURRENCY_BUY'
+  | 'CURRENCY_SELL';
 
 export interface CategoryCursorListV5<T extends unknown[]> {
   category: CategoryV5;