diff --git a/apps/dashboard/src/components/contract-components/contract-deploy-form/custom-contract.tsx b/apps/dashboard/src/components/contract-components/contract-deploy-form/custom-contract.tsx
index 4d9304048c0..36c1a111eed 100644
--- a/apps/dashboard/src/components/contract-components/contract-deploy-form/custom-contract.tsx
+++ b/apps/dashboard/src/components/contract-components/contract-deploy-form/custom-contract.tsx
@@ -386,7 +386,9 @@ export const CustomContractForm: React.FC<CustomContractFormProps> = ({
         throw new Error("no chain");
       }
 
-      const compilerType = isZkSyncChain(walletChain) ? "zksolc" : "solc";
+      const compilerType = (await isZkSyncChain(walletChain))
+        ? "zksolc"
+        : "solc";
 
       let _contractURI = "";
 
diff --git a/packages/thirdweb/src/contract/deployment/deploy-via-autofactory.ts b/packages/thirdweb/src/contract/deployment/deploy-via-autofactory.ts
index cd475d1cb1f..3c4410fe8a9 100644
--- a/packages/thirdweb/src/contract/deployment/deploy-via-autofactory.ts
+++ b/packages/thirdweb/src/contract/deployment/deploy-via-autofactory.ts
@@ -73,7 +73,7 @@ export async function deployViaAutoFactory(
     salt,
   } = options;
 
-  if (isZkSyncChain(chain)) {
+  if (await isZkSyncChain(chain)) {
     return zkDeployProxy({
       chain,
       client,
diff --git a/packages/thirdweb/src/contract/deployment/utils/bootstrap.ts b/packages/thirdweb/src/contract/deployment/utils/bootstrap.ts
index 2642d8444f5..1da6c8c24b6 100644
--- a/packages/thirdweb/src/contract/deployment/utils/bootstrap.ts
+++ b/packages/thirdweb/src/contract/deployment/utils/bootstrap.ts
@@ -44,7 +44,7 @@ export async function getOrDeployInfraForPublishedContract(
     compilerType,
   } = args;
 
-  if (isZkSyncChain(chain)) {
+  if (await isZkSyncChain(chain)) {
     const cloneFactoryContract = await zkDeployCreate2Factory({
       chain,
       client,
diff --git a/packages/thirdweb/src/extensions/prebuilts/deploy-published.ts b/packages/thirdweb/src/extensions/prebuilts/deploy-published.ts
index c78a4f2cc2c..2be090bd2a0 100644
--- a/packages/thirdweb/src/extensions/prebuilts/deploy-published.ts
+++ b/packages/thirdweb/src/extensions/prebuilts/deploy-published.ts
@@ -267,7 +267,7 @@ async function directDeploy(options: {
   const { account, client, chain, compilerMetadata, contractParams, salt } =
     options;
 
-  if (isZkSyncChain(chain)) {
+  if (await isZkSyncChain(chain)) {
     return zkDeployContract({
       account,
       client,
diff --git a/packages/thirdweb/src/extensions/prebuilts/get-required-transactions.ts b/packages/thirdweb/src/extensions/prebuilts/get-required-transactions.ts
index c55b69a9203..241926c612d 100644
--- a/packages/thirdweb/src/extensions/prebuilts/get-required-transactions.ts
+++ b/packages/thirdweb/src/extensions/prebuilts/get-required-transactions.ts
@@ -43,6 +43,8 @@ export async function getRequiredTransactions(
     modules = [],
   } = options;
 
+  const isZkSync = await isZkSyncChain(chain);
+
   if (deployMetadata?.deployType === "autoFactory") {
     const results: (
       | DeployTransactionResult
@@ -53,7 +55,7 @@ export async function getRequiredTransactions(
         chain,
         client,
       }).then((c) =>
-        c || isZkSyncChain(chain)
+        c || isZkSync
           ? null
           : ({ type: "infra", contractId: "Create2Factory" } as const),
       ),
@@ -62,7 +64,7 @@ export async function getRequiredTransactions(
         client,
         contractId: "Forwarder",
       }).then((c) =>
-        c || isZkSyncChain(chain)
+        c || isZkSync
           ? null
           : ({ type: "infra", contractId: "Forwarder" } as const),
       ),
@@ -78,7 +80,7 @@ export async function getRequiredTransactions(
           }),
         },
       }).then((c) =>
-        c || isZkSyncChain(chain)
+        c || isZkSync
           ? null
           : ({ type: "infra", contractId: "TWCloneFactory" } as const),
       ),
diff --git a/packages/thirdweb/src/utils/any-evm/zksync/isZkSyncChain.ts b/packages/thirdweb/src/utils/any-evm/zksync/isZkSyncChain.ts
index 72b00a252e6..54360eff765 100644
--- a/packages/thirdweb/src/utils/any-evm/zksync/isZkSyncChain.ts
+++ b/packages/thirdweb/src/utils/any-evm/zksync/isZkSyncChain.ts
@@ -1,12 +1,44 @@
 import type { Chain } from "../../../chains/types.js";
+import { withCache } from "../../promise/withCache.js";
 
-export function isZkSyncChain(chain: Chain) {
-  return (
-    chain.id === 324 ||
-    chain.id === 300 ||
-    chain.id === 302 ||
-    chain.id === 11124 ||
-    chain.id === 282 || // cronos zkevm testnet
-    chain.id === 388 // cronos zkevm mainnet
+export async function isZkSyncChain(chain: Chain) {
+  if (chain.id === 1337 || chain.id === 31337) {
+    return false;
+  }
+
+  const stack = await getChainStack(chain.id).catch(() => {
+    // fall back to checking against these zksync chain-ids
+    if (
+      chain.id === 324 ||
+      chain.id === 300 ||
+      chain.id === 302 ||
+      chain.id === 11124 ||
+      chain.id === 282 || // cronos zkevm testnet
+      chain.id === 388 // cronos zkevm mainnet
+    ) {
+      return "zksync-stack";
+    }
+
+    return "";
+  });
+
+  return stack === "zksync-stack";
+}
+
+async function getChainStack(chainId: number): Promise<string> {
+  return withCache(
+    async () => {
+      const res = await fetch(`https://${chainId}.rpc.thirdweb.com/stack`);
+
+      if (!res.ok) {
+        res.body?.cancel();
+        throw new Error(`Error fetching stack for ${chainId}`);
+      }
+
+      const data = await res.json();
+
+      return data.stack;
+    },
+    { cacheKey: `stack:${chainId}`, cacheTime: 24 * 60 * 60 * 1000 },
   );
 }
diff --git a/packages/thirdweb/src/wallets/smart/index.ts b/packages/thirdweb/src/wallets/smart/index.ts
index 7ac16fea68c..27c95b84a06 100644
--- a/packages/thirdweb/src/wallets/smart/index.ts
+++ b/packages/thirdweb/src/wallets/smart/index.ts
@@ -104,7 +104,7 @@ export async function connectSmartWallet(
   const sponsorGas =
     "gasless" in options ? options.gasless : options.sponsorGas;
 
-  if (isZkSyncChain(chain)) {
+  if (await isZkSyncChain(chain)) {
     return [
       createZkSyncAccount({
         creationOptions,