From 3b6317af39705541cca88e7b2c81d4800e37a7ec Mon Sep 17 00:00:00 2001
From: Sakshi Joshi <sakshijoshi217@bitgo.com>
Date: Thu, 18 Jun 2026 12:32:30 +0530
Subject: [PATCH] feat(sdk-core): add PolyxSwitchValidatorOptions for
 multi-nomination switch

TICKET: SI-842
---
 modules/sdk-core/src/bitgo/staking/iStakingWallet.ts | 10 +++++++++-
 modules/sdk-core/src/bitgo/staking/stakingWallet.ts  |  6 +++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/modules/sdk-core/src/bitgo/staking/iStakingWallet.ts b/modules/sdk-core/src/bitgo/staking/iStakingWallet.ts
index 6c423a306f..0283d2c969 100644
--- a/modules/sdk-core/src/bitgo/staking/iStakingWallet.ts
+++ b/modules/sdk-core/src/bitgo/staking/iStakingWallet.ts
@@ -227,6 +227,12 @@ export interface TaoSwitchValidatorOptions extends SwitchValidatorOptions {
   netUID: string;
 }
 
+export interface PolyxSwitchValidatorOptions {
+  delegationId: string;
+  validators: string[];
+  clientId?: string;
+}
+
 export interface ClaimRewardsOptions {
   amount: string;
   clientId?: string;
@@ -322,7 +328,9 @@ export interface IStakingWallet {
     options: StakeOptions | TronStakeOptions | TaoStakeOptions | VetStakeOptions | StoryStakeOptions | XdcStakeOptions
   ): Promise<StakingRequest>;
   unstake(options: UnstakeOptions | EthUnstakeOptions): Promise<StakingRequest>;
-  switchValidator(options: SwitchValidatorOptions | TaoSwitchValidatorOptions): Promise<StakingRequest>;
+  switchValidator(
+    options: SwitchValidatorOptions | TaoSwitchValidatorOptions | PolyxSwitchValidatorOptions
+  ): Promise<StakingRequest>;
   claimRewards(options: ClaimRewardsOptions): Promise<StakingRequest>;
   getStakingRequest(stakingRequestId: string): Promise<StakingRequest>;
   getTransactionsReadyToSign(stakingRequestId: string): Promise<TransactionsReadyToSign>;
diff --git a/modules/sdk-core/src/bitgo/staking/stakingWallet.ts b/modules/sdk-core/src/bitgo/staking/stakingWallet.ts
index 0521aed59e..1ce798e2a8 100644
--- a/modules/sdk-core/src/bitgo/staking/stakingWallet.ts
+++ b/modules/sdk-core/src/bitgo/staking/stakingWallet.ts
@@ -23,6 +23,7 @@ import {
   TronStakeOptions,
   TaoStakeOptions,
   TaoSwitchValidatorOptions,
+  PolyxSwitchValidatorOptions,
   VetStakeOptions,
   StoryStakeOptions,
   XdcStakeOptions,
@@ -84,7 +85,9 @@ export class StakingWallet implements IStakingWallet {
    * @param options - switch validator options
    * @return StakingRequest
    */
-  async switchValidator(options: SwitchValidatorOptions | TaoSwitchValidatorOptions): Promise<StakingRequest> {
+  async switchValidator(
+    options: SwitchValidatorOptions | TaoSwitchValidatorOptions | PolyxSwitchValidatorOptions
+  ): Promise<StakingRequest> {
     return await this.createStakingRequest(options, 'SWITCH_VALIDATOR');
   }
 
@@ -325,6 +328,7 @@ export class StakingWallet implements IStakingWallet {
       | TronStakeOptions
       | TaoStakeOptions
       | TaoSwitchValidatorOptions
+      | PolyxSwitchValidatorOptions
       | VetStakeOptions
       | StoryStakeOptions
       | XdcStakeOptions,