diff --git a/examples/node/examples/bridge.ts b/examples/node/examples/bridge.ts
index ad07c7f1..80f773a8 100644
--- a/examples/node/examples/bridge.ts
+++ b/examples/node/examples/bridge.ts
@@ -1,4 +1,5 @@
 import * as lifiDataTypes from '@lifi/data-types'
+import type { RouteExtended, Execution } from '@lifi/sdk'
 import {
   executeRoute,
   getRoutes,
@@ -82,12 +83,15 @@ async function run() {
 
   // here we are using the update route hook to report the execution steps to the terminal
   const executionOptions = {
-    updateRouteHook: (updatedRoute) => {
-      const lastExecution = updatedRoute.steps.reduce((accum, step) => {
-        if (step.execution) {
-          return step.execution
-        }
-      }, undefined)
+    updateRouteHook: (updatedRoute: RouteExtended) => {
+      const lastExecution = updatedRoute.steps.reduce(
+        (accum, step) => {
+          if (step.execution) {
+            return step.execution
+          }
+        },
+        undefined as undefined | Execution
+      )
       console.info(lastExecution)
     },
   }
diff --git a/examples/node/examples/klimaRetireExactCarbon.ts b/examples/node/examples/klimaRetireExactCarbon.ts
index f5716527..246b38dd 100644
--- a/examples/node/examples/klimaRetireExactCarbon.ts
+++ b/examples/node/examples/klimaRetireExactCarbon.ts
@@ -22,7 +22,6 @@ import {
 } from 'viem'
 import { mainnet, arbitrum, optimism, polygon } from 'viem/chains'
 import { privateKeyToAccount } from 'viem/accounts'
-import { publicActionsL2 } from 'viem/op-stack'
 import 'dotenv/config'
 import { promptConfirm } from '../helpers/promptConfirm'
 import { AddressZero } from './constants'
@@ -91,7 +90,7 @@ const run = async () => {
       transport: http(),
     })
 
-    const sourceAmountDefaultRetirement = await publicClient.readContract({
+    const sourceAmountDefaultRetirement = (await publicClient.readContract({
       address: KLIMA_ETHEREUM_CONTRACT_POL,
       abi,
       functionName: 'getSourceAmountDefaultRetirement',
@@ -100,7 +99,7 @@ const run = async () => {
         Base_Carbon_Tonne_POL, // address poolToken,
         retireAmount, // uint256 retireAmount,
       ],
-    })
+    })) as bigint
 
     const usdcAmount = parseUnits(
       sourceAmountDefaultRetirement.toString(),
@@ -125,7 +124,6 @@ const run = async () => {
       ],
     })
 
-    // quote
     const contractCallsQuoteRequest: ContractCallsQuoteRequest = {
       fromChain,
       fromToken,
@@ -168,7 +166,10 @@ const run = async () => {
       )
 
       // set approval if needed
-      if (approval < BigInt(contactCallsQuoteResponse.action.fromAmount)) {
+      if (
+        approval &&
+        approval < BigInt(contactCallsQuoteResponse.action.fromAmount)
+      ) {
         const txHash = await setTokenAllowance({
           walletClient: client,
           spenderAddress: contactCallsQuoteResponse.estimate.approvalAddress,
@@ -191,17 +192,18 @@ const run = async () => {
       }
     }
 
-    const transactionRequest = contactCallsQuoteResponse.transactionRequest
+    const transactionRequest =
+      contactCallsQuoteResponse.transactionRequest || {}
 
     console.info('>> Execute transaction', transactionRequest)
 
     const hash = await client.sendTransaction({
       to: transactionRequest.to as Address,
       account: client.account!,
+      data: transactionRequest.data as Hash,
       value: transactionRequest.value
         ? BigInt(transactionRequest.value)
         : undefined,
-      data: transactionRequest.data as Hash,
       gas: transactionRequest.gasLimit
         ? BigInt(transactionRequest.gasLimit as string)
         : undefined,
diff --git a/examples/node/examples/multihop.ts b/examples/node/examples/multihop.ts
index 6590a8dd..9083c487 100644
--- a/examples/node/examples/multihop.ts
+++ b/examples/node/examples/multihop.ts
@@ -136,7 +136,10 @@ const run = async () => {
       )
 
       // set approval if needed
-      if (approval < BigInt(contactCallsQuoteResponse.action.fromAmount)) {
+      if (
+        approval &&
+        approval < BigInt(contactCallsQuoteResponse.action.fromAmount)
+      ) {
         const txHash = await setTokenAllowance({
           walletClient: client,
           spenderAddress: contactCallsQuoteResponse.estimate.approvalAddress,
@@ -159,7 +162,8 @@ const run = async () => {
       }
     }
 
-    const transactionRequest = contactCallsQuoteResponse.transactionRequest
+    const transactionRequest =
+      contactCallsQuoteResponse.transactionRequest || {}
 
     console.info('>> Execute transaction', transactionRequest)
 
@@ -177,7 +181,7 @@ const run = async () => {
         ? BigInt(transactionRequest.gasPrice as string)
         : undefined,
       chain: null,
-    } as any)
+    })
 
     console.info('>> Transaction sent', hash)
 
diff --git a/examples/node/examples/polynomialDeposit.ts b/examples/node/examples/polynomialDeposit.ts
index 49a10078..37c2cfa0 100644
--- a/examples/node/examples/polynomialDeposit.ts
+++ b/examples/node/examples/polynomialDeposit.ts
@@ -21,7 +21,6 @@ import { privateKeyToAccount } from 'viem/accounts'
 import { mainnet, arbitrum, optimism, polygon } from 'viem/chains'
 import 'dotenv/config'
 import { promptConfirm } from '../helpers/promptConfirm'
-import type { WalletClientWithPublicActions } from './types'
 import { AddressZero } from './constants'
 
 const run = async () => {
@@ -39,7 +38,7 @@ const run = async () => {
       account,
       chain: mainnet,
       transport: http(),
-    }).extend(publicActions) as WalletClientWithPublicActions
+    }).extend(publicActions)
 
     const switchChains = [mainnet, arbitrum, optimism, polygon]
 
@@ -124,7 +123,10 @@ const run = async () => {
       )
 
       // set approval if needed
-      if (approval < BigInt(contactCallsQuoteResponse.action.fromAmount)) {
+      if (
+        approval &&
+        approval < BigInt(contactCallsQuoteResponse.action.fromAmount)
+      ) {
         const txHash = await setTokenAllowance({
           walletClient: client,
           spenderAddress: contactCallsQuoteResponse.estimate.approvalAddress,
@@ -147,28 +149,26 @@ const run = async () => {
       }
     }
 
-    const transactionRequest = contactCallsQuoteResponse.transactionRequest
+    const transactionRequest =
+      contactCallsQuoteResponse.transactionRequest || {}
 
     console.info('>> Execute transaction', transactionRequest)
 
-    const { maxFeePerGas, maxPriorityFeePerGas } =
-      await client.estimateFeesPerGas()
-
     const hash = await client.sendTransaction({
       to: transactionRequest.to as Address,
       account: client.account!,
-      value: transactionRequest.value ? transactionRequest.value : undefined,
+      value: transactionRequest.value
+        ? BigInt(transactionRequest.value as string)
+        : undefined,
       data: transactionRequest.data as Hash,
       gas: transactionRequest.gasLimit
         ? BigInt(transactionRequest.gasLimit as string)
         : undefined,
-      // gasPrice: transactionRequest.gasPrice
-      //   ? BigInt(transactionRequest.gasPrice as string)
-      //   : undefined,
-      maxFeePerGas,
-      maxPriorityFeePerGas,
+      gasPrice: transactionRequest.gasPrice
+        ? BigInt(transactionRequest.gasPrice as string)
+        : undefined,
       chain: null,
-    } as any)
+    })
 
     console.info('>> Transaction sent', hash)
 
diff --git a/examples/node/examples/swap.ts b/examples/node/examples/swap.ts
index 20768460..d0593859 100644
--- a/examples/node/examples/swap.ts
+++ b/examples/node/examples/swap.ts
@@ -1,4 +1,5 @@
 import * as lifiDataTypes from '@lifi/data-types'
+import type { RouteExtended, Execution } from '@lifi/sdk'
 import {
   createConfig,
   EVM,
@@ -73,12 +74,15 @@ async function run() {
 
   // here we are using the update route hook to report the execution steps to the terminal
   const executionOptions = {
-    updateRouteHook: (updatedRoute) => {
-      const lastExecution = updatedRoute.steps.reduce((accum, step) => {
-        if (step.execution) {
-          return step.execution
-        }
-      }, undefined)
+    updateRouteHook: (updatedRoute: RouteExtended) => {
+      const lastExecution = updatedRoute.steps.reduce(
+        (accum, step) => {
+          if (step.execution) {
+            return step.execution
+          }
+        },
+        undefined as undefined | Execution
+      )
       console.info(lastExecution)
     },
   }
diff --git a/examples/node/examples/types.ts b/examples/node/examples/types.ts
deleted file mode 100644
index 16e81071..00000000
--- a/examples/node/examples/types.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import type { PublicActions, WalletClient } from 'viem'
-
-export interface WalletClientWithPublicActions
-  extends WalletClient,
-    PublicActions {}
diff --git a/examples/node/package.json b/examples/node/package.json
index bfe7cea0..707477f1 100644
--- a/examples/node/package.json
+++ b/examples/node/package.json
@@ -9,12 +9,12 @@
   "dependencies": {
     "@lifi/data-types": "^4.2.1",
     "@lifi/rpc-wrapper": "^0.0.27",
-    "@lifi/sdk": "^3.0.0-alpha.62",
+    "@lifi/sdk": "^3.0.0-alpha.63",
     "@types/dotenv": "^8.2.0",
     "@wagmi/connectors": "^4.3.9",
     "@wagmi/core": "^2.9.7",
     "dotenv": "^16.4.5",
-    "viem": "^2.10.0"
+    "viem": "^2.12.1"
   },
   "scripts": {
     "example:swap": "tsx examples/swap.ts",
diff --git a/examples/node/tsconfig.json b/examples/node/tsconfig.json
index 508ac0d7..e42e3621 100644
--- a/examples/node/tsconfig.json
+++ b/examples/node/tsconfig.json
@@ -1,5 +1,6 @@
 {
   "compilerOptions": {
+    "strict": true,
     "module": "ESNext",
     "moduleResolution": "node",
   },
diff --git a/examples/node/yarn.lock b/examples/node/yarn.lock
index 51c44d03..cb57e883 100644
--- a/examples/node/yarn.lock
+++ b/examples/node/yarn.lock
@@ -700,20 +700,20 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@lifi/sdk@npm:^3.0.0-alpha.62":
-  version: 3.0.0-alpha.62
-  resolution: "@lifi/sdk@npm:3.0.0-alpha.62"
+"@lifi/sdk@npm:^3.0.0-alpha.63":
+  version: 3.0.0-alpha.63
+  resolution: "@lifi/sdk@npm:3.0.0-alpha.63"
   dependencies:
-    "@lifi/types": "npm:^13.3.0"
+    "@lifi/types": "npm:^13.7.1"
     "@solana/wallet-adapter-base": "npm:^0.9.23"
     "@solana/web3.js": "npm:^1.91.8"
     eth-rpc-errors: "npm:^4.0.3"
-    viem: "npm:^2.11.0"
+    viem: "npm:^2.12.1"
   peerDependencies:
     "@solana/wallet-adapter-base": ^0.9.0
     "@solana/web3.js": ^1.91.0
     viem: ^2.10.0
-  checksum: 10/d260664a1c9384cf83dc0f2959853782828eb30c0c8b7d5907cc6cbcfd4bfdb8a9aad818393356e5734f5149913515c649135a4e497f452a860d64a2ba4bee04
+  checksum: 10/c1cb9cab1ba8bb8fec1bd24ed0fa20a15d97516a1ebb283a38e9f06ef53022ef58afff65141f1c27368104d19239e8f58a585a02cb5a24b373ae1581e78f8e8b
   languageName: node
   linkType: hard
 
@@ -724,6 +724,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@lifi/types@npm:^13.7.1":
+  version: 13.7.1
+  resolution: "@lifi/types@npm:13.7.1"
+  checksum: 10/37d4dbb642342a0eb791f7657c19f46623cdf59396cbf7898602e25d5394735c8e8e2d71648d914a7b97e94ee552324f6826ab550407c319dabe653d3deec815
+  languageName: node
+  linkType: hard
+
 "@lit-labs/ssr-dom-shim@npm:^1.0.0, @lit-labs/ssr-dom-shim@npm:^1.1.0":
   version: 1.2.0
   resolution: "@lit-labs/ssr-dom-shim@npm:1.2.0"
@@ -4136,7 +4143,7 @@ __metadata:
   dependencies:
     "@lifi/data-types": "npm:^4.2.1"
     "@lifi/rpc-wrapper": "npm:^0.0.27"
-    "@lifi/sdk": "npm:^3.0.0-alpha.62"
+    "@lifi/sdk": "npm:^3.0.0-alpha.63"
     "@types/dotenv": "npm:^8.2.0"
     "@types/node": "npm:^20.12.12"
     "@wagmi/connectors": "npm:^4.3.9"
@@ -4144,7 +4151,7 @@ __metadata:
     dotenv: "npm:^16.4.5"
     tsx: "npm:^4.10.2"
     typescript: "npm:^5.4.5"
-    viem: "npm:^2.10.0"
+    viem: "npm:^2.12.1"
   languageName: unknown
   linkType: soft
 
@@ -5945,9 +5952,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"viem@npm:^2.10.0, viem@npm:^2.11.0":
-  version: 2.11.1
-  resolution: "viem@npm:2.11.1"
+"viem@npm:^2.12.1":
+  version: 2.13.1
+  resolution: "viem@npm:2.13.1"
   dependencies:
     "@adraffy/ens-normalize": "npm:1.10.0"
     "@noble/curves": "npm:1.2.0"
@@ -5962,7 +5969,7 @@ __metadata:
   peerDependenciesMeta:
     typescript:
       optional: true
-  checksum: 10/1dc5d1455d006e5788e865e6e8a702e7dcf8cd2ca5cdfecc2dccf5886a579044fc8e0915f6a53e6a5db82e52f8660d6cf1d18dfcf75486fde6cea379d02cbb8b
+  checksum: 10/bfddca57e09d30810eaaa8ea01b281b8b1bcdb6da698404bc0f2b1d0a01a57051d70e911da0f480d9cdd8ec22c04ea88de0f09e29de5b4f1459e93c16d712952
   languageName: node
   linkType: hard