diff --git a/packages/connect/src/config/createConfig.ts b/packages/connect/src/config/createConfig.ts
index 980c83fd4..c947754fe 100644
--- a/packages/connect/src/config/createConfig.ts
+++ b/packages/connect/src/config/createConfig.ts
@@ -21,7 +21,7 @@ export const createConfig = <T extends WalletType>(walletType: T, options: Creat
   const { projectAccessKey, chainIds, wagmiConfig, ...rest } = options
 
   const chains = wagmiConfig?.chains || getDefaultChains(chainIds)
-  const transports = wagmiConfig?.transports || getDefaultTransports(chains)
+  const transports = wagmiConfig?.transports || getDefaultTransports(chains, projectAccessKey)
   const connectors = wagmiConfig?.connectors || getDefaultConnectors(walletType, options)
 
   return {
diff --git a/packages/connect/src/config/defaultTransports.ts b/packages/connect/src/config/defaultTransports.ts
index efd407a50..e046b5128 100644
--- a/packages/connect/src/config/defaultTransports.ts
+++ b/packages/connect/src/config/defaultTransports.ts
@@ -1,5 +1,29 @@
 import { http, type Chain } from 'viem'
 
-export const getDefaultTransports = (chains: readonly [Chain, ...Chain[]]) => {
-  return Object.fromEntries(chains.map(chain => [chain.id, http()]))
+const isSequenceNodeUrl = (url: string): boolean => {
+  return url.includes('sequence.app')
+}
+
+const appendAccessKey = (url: string, accessKey: string): string => {
+  const cleanUrl = url.endsWith('/') ? url.slice(0, -1) : url
+  if (url.endsWith(accessKey)) {
+    return url
+  }
+
+  return `${cleanUrl}/${accessKey}`
+}
+
+export const getDefaultTransports = (chains: readonly [Chain, ...Chain[]], projectAccessKey?: string) => {
+  return Object.fromEntries(
+    chains.map(chain => {
+      const rpcUrl = chain.rpcUrls.default.http[0]
+
+      if (projectAccessKey && rpcUrl && isSequenceNodeUrl(rpcUrl)) {
+        const urlWithAccessKey = appendAccessKey(rpcUrl, projectAccessKey)
+        return [chain.id, http(urlWithAccessKey)]
+      }
+
+      return [chain.id, http()]
+    })
+  )
 }