diff --git a/modules/sdk-coin-coredao/src/coredao.ts b/modules/sdk-coin-coredao/src/coredao.ts
index ba81cc8fe5..4be0ee0bb8 100644
--- a/modules/sdk-coin-coredao/src/coredao.ts
+++ b/modules/sdk-coin-coredao/src/coredao.ts
@@ -1,7 +1,8 @@
 import { BaseCoin, BitGoBase, common, MPCAlgorithm } from '@bitgo/sdk-core';
 import { BaseCoin as StaticsBaseCoin, coins } from '@bitgo/statics';
-import { AbstractEthLikeNewCoins, recoveryBlockchainExplorerQuery } from '@bitgo/abstract-eth';
+import { AbstractEthLikeNewCoins, optionalDeps, recoveryBlockchainExplorerQuery } from '@bitgo/abstract-eth';
 import { TransactionBuilder } from './lib';
+import BN from 'bn.js';
 
 export class Coredao extends AbstractEthLikeNewCoins {
   protected constructor(bitgo: BitGoBase, staticsCoin?: Readonly<StaticsBaseCoin>) {
@@ -31,4 +32,46 @@ export class Coredao extends AbstractEthLikeNewCoins {
     const explorerUrl = common.Environments[this.bitgo.getEnv()].coredaoExplorerBaseUrl;
     return await recoveryBlockchainExplorerQuery(query, explorerUrl as string, apiToken);
   }
+
+  /** @inheritDoc */
+  async queryAddressBalance(address: string): Promise<BN> {
+    const result = await this.recoveryBlockchainExplorerQuery({
+      module: 'account',
+      action: 'balance',
+      address: address,
+    });
+    // throw if the result does not exist or the result is not a valid number
+    if (!result || !result.result || isNaN(<number>result.result)) {
+      throw new Error(`Could not obtain address balance for ${address} from the explorer, got: ${result.result}`);
+    }
+
+    if (typeof result.result !== 'string') {
+      result.result = result.result.toString();
+    }
+
+    return new optionalDeps.ethUtil.BN(result.result, 10);
+  }
+
+  /** @inheritDoc */
+  async getAddressNonce(address: string): Promise<number> {
+    // Get nonce for backup key (should be 0)
+    let nonce = 0;
+
+    const result = await this.recoveryBlockchainExplorerQuery({
+      module: 'account',
+      action: 'txlist',
+      sort: 'desc',
+      address: address,
+    });
+    if (!result || !Array.isArray(result.result)) {
+      throw new Error('Unable to find next nonce from the explorer, got: ' + JSON.stringify(result));
+    }
+    const backupKeyTxList = result.result;
+    if (backupKeyTxList.length > 0) {
+      // Calculate last nonce used
+      const outgoingTxs = backupKeyTxList.filter((tx) => tx.from === address);
+      nonce = Math.max(...outgoingTxs.map((tx) => tx.nonce as number)) + 1;
+    }
+    return nonce;
+  }
 }
diff --git a/modules/sdk-core/src/bitgo/environments.ts b/modules/sdk-core/src/bitgo/environments.ts
index 1eec781efd..d8606402ff 100644
--- a/modules/sdk-core/src/bitgo/environments.ts
+++ b/modules/sdk-core/src/bitgo/environments.ts
@@ -153,7 +153,7 @@ const mainnetBase: EnvironmentTemplate = {
   hmacVerificationEnforced: true,
   suiNodeUrl: 'https://fullnode.mainnet.sui.io',
   etcNodeUrl: 'https://etc.blockscout.com',
-  coredaoExplorerBaseUrl: 'https://scan.coredao.org/',
+  coredaoExplorerBaseUrl: 'https://app.coredao.org/',
   oasExplorerBaseUrl: 'https://explorer.oasys.games',
 };
 
@@ -207,7 +207,7 @@ const testnetBase: EnvironmentTemplate = {
   hmacVerificationEnforced: false,
   suiNodeUrl: 'https://fullnode.testnet.sui.io',
   etcNodeUrl: 'https://etc-mordor.blockscout.com',
-  coredaoExplorerBaseUrl: 'https://scan.test.btcs.network',
+  coredaoExplorerBaseUrl: 'https://app.test.btcs.network',
   oasExplorerBaseUrl: 'https://explorer.testnet.oasys.games',
 };