diff --git a/.gitignore b/.gitignore
index fd3dbb5..a14154f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,7 @@
 
 # misc
 .DS_Store
+.vscode/
 *.pem
 
 # debug
diff --git a/components/build-deploy-panel.tsx b/components/build-deploy-panel.tsx
index 9509f7d..99691d2 100644
--- a/components/build-deploy-panel.tsx
+++ b/components/build-deploy-panel.tsx
@@ -6,13 +6,15 @@ import { useCliCommands } from "./workspace/use-cli-commands";
 import useSWR, { mutate } from "swr";
 import { db } from "@/data/db";
 import { useWorkspaceId } from "./workspace/use-workspace-id";
-import { Download, Rocket, ShieldCheck, Wrench, TestTube2, Link2 } from "lucide-react";
+import { Download, Rocket, ShieldCheck, Wrench, TestTube2, Link2, HandCoins } from "lucide-react";
 import UploadModal from "./workspace/upload-modal";
 import { Tooltip } from "./tooltip";
+import { AuditType } from "@/data/audit";
 
 export function BuildDeployPanel() {
   const commands = useCliCommands();
   const [isAuditing, setIsAuditing] = useState(false);
+  const [isSaveGasFeeAuditing, setIsSaveGasFeeAuditing] = useState(false);
   const [isBuilding, setIsBuilding] = useState(false);
   const [isDeploying, setIsDeploying] = useState(false);
   const [isTesting, setIsTesting] = useState(false);
@@ -38,7 +40,7 @@ export function BuildDeployPanel() {
       onClick: async () => {
         setIsAuditing(true);
         try {
-          await commands.audit();
+          await commands.audit(AuditType.DEFAULT);
         } catch (err) {
           console.log(err);
         } finally {
@@ -47,6 +49,21 @@ export function BuildDeployPanel() {
       },
       icon: ShieldCheck,
     },
+    {
+      disabled: isSaveGasFeeAuditing,
+      title: "Save Gas Fee",
+      onClick: async () => {
+        setIsSaveGasFeeAuditing(true);
+        try {
+          await commands.audit(AuditType.SAVE_GAS_FEE);
+        } catch (err) {
+          console.log(err);
+        } finally {
+          setIsSaveGasFeeAuditing(false);
+        }
+      },
+      icon: HandCoins,
+    },
     {
       disabled: isBuilding,
       title: "Build",
diff --git a/components/file-explorer/index.tsx b/components/file-explorer/index.tsx
index 44c7d23..780544e 100644
--- a/components/file-explorer/index.tsx
+++ b/components/file-explorer/index.tsx
@@ -94,7 +94,7 @@ const FileExplorer = () => {
             });
 
             if (children.length === 0) {
-              setSearchParams("file", encodeURIComponent(id));
+              setSearchParams({ file: encodeURIComponent(id) });
             }
           }}
           // @ts-expect-error
diff --git a/components/workspace/use-cli-commands.tsx b/components/workspace/use-cli-commands.tsx
index 84d7f65..e98f67f 100644
--- a/components/workspace/use-cli-commands.tsx
+++ b/components/workspace/use-cli-commands.tsx
@@ -7,7 +7,12 @@ import { usePathname } from "next/navigation";
 import { PropsWithChildren, useContext, useEffect, useState } from "react";
 import { TerminalContext } from "react-terminal";
 import { useWorkspaceId } from "./use-workspace-id";
-import { uploadContractCode, useAudit, useAuditReport } from "@/data/audit";
+import {
+  AuditType,
+  uploadContractCode,
+  useAudit,
+  useAuditReport,
+} from "@/data/audit";
 import clsx from "clsx";
 import { fileContentToZip } from "@/lib/file-content-to-zip";
 import { saveAs } from "file-saver";
@@ -36,7 +41,9 @@ export function useCliCommands() {
             <li className="ml-8">test - tests the current workspace</li>
             <li className="ml-8">deploy - deploys the built smart contract</li>
             <li className="ml-8">export - exports the current workspace</li>
-            <li className="ml-8">share - generates a share link for the current workspace</li>
+            <li className="ml-8">
+              share - generates a share link for the current workspace
+            </li>
             <li className="ml-8">
               check txID - checks the result of transaction
             </li>
@@ -44,7 +51,7 @@ export function useCliCommands() {
         </div>
       );
     },
-    audit: async () => {
+    audit: async (auditType: AuditType) => {
       const start = `${pathname}/`;
       terminalContext.setBufferedContent(
         <>
@@ -70,7 +77,7 @@ export function useCliCommands() {
       );
 
       try {
-        const codeHash = await uploadContractCode(files);
+        const codeHash = await uploadContractCode(auditType, files);
 
         terminalContext.setBufferedContent(
           <>
@@ -80,13 +87,17 @@ export function useCliCommands() {
 
         if (!wallet) return;
 
-        setSearchParams("auditId", codeHash);
+        setSearchParams({ auditId: codeHash, auditType });
 
         const { TransactionId } = await wallet.auditTransfer(codeHash);
 
         terminalContext.setBufferedContent(
           <>
-            <AuditReport codeHash={codeHash} transactionId={TransactionId} />
+            <AuditReport
+              auditType={auditType}
+              codeHash={codeHash}
+              transactionId={TransactionId}
+            />
           </>
         );
       } catch (err) {
@@ -258,7 +269,9 @@ export function useCliCommands() {
       const file = new File(
         [zip],
         `${pathname?.split("/")?.pop() || "export"}.zip`,
-        { type: "data:application/octet-stream;base64," }
+        {
+          type: "data:application/octet-stream;base64,",
+        }
       );
       saveAs(file);
     },
@@ -281,7 +294,8 @@ export function useCliCommands() {
         <>
           <p>Loaded files: {files.map((i) => i.path).join(", ")}</p>
           <p>
-            <Loader2 className="h-4 w-4 animate-spin inline" /> Generating share link...
+            <Loader2 className="h-4 w-4 animate-spin inline" /> Generating share
+            link...
           </p>
         </>
       );
@@ -293,9 +307,7 @@ export function useCliCommands() {
         });
         const { id } = await res.json();
 
-        terminalContext.setBufferedContent(
-          <ShareLink id={id} />
-        );
+        terminalContext.setBufferedContent(<ShareLink id={id} />);
       } catch (err) {
         if (err instanceof Error)
           terminalContext.setBufferedContent(<>{err.message}</>);
@@ -385,21 +397,29 @@ function DeployedContractDetails({ id }: { id?: string }) {
 }
 
 function AuditReport({
+  auditType,
   codeHash,
   transactionId,
 }: {
+  auditType: AuditType;
   codeHash: string;
   transactionId: string;
 }) {
-  const { isLoading, error } = useAudit(codeHash, transactionId);
+  const { isLoading, error } = useAudit(auditType, codeHash, transactionId);
 
   if (isLoading || !!error) return <Loading>Loading report...</Loading>;
 
-  return <AuditReportResult codeHash={codeHash} />;
+  return <AuditReportResult auditType={auditType} codeHash={codeHash} />;
 }
 
-function AuditReportResult({ codeHash }: { codeHash: string }) {
-  const { data, isLoading } = useAuditReport(codeHash);
+function AuditReportResult({
+  auditType,
+  codeHash,
+}: {
+  auditType: AuditType;
+  codeHash: string;
+}) {
+  const { data, isLoading } = useAuditReport(auditType, codeHash);
 
   if (isLoading || !data) return <Loading>Loading report...</Loading>;
 
@@ -438,4 +458,3 @@ function AuditReportResult({ codeHash }: { codeHash: string }) {
     </>
   );
 }
-
diff --git a/data/audit.ts b/data/audit.ts
index fc03e89..7d08bd4 100644
--- a/data/audit.ts
+++ b/data/audit.ts
@@ -7,9 +7,30 @@ import { fileContentToZip } from "@/lib/file-content-to-zip";
 import { v4 as uuidv4 } from "uuid";
 import { useSearchParams } from "next/navigation";
 
+export enum AuditType {
+  DEFAULT = "default",
+  SAVE_GAS_FEE = "saveGasFee",
+}
+
+const URL_CONFIG = {
+  [AuditType.DEFAULT]: {
+    uploadContractCode: "/api/playground/audit/uploadContractCode",
+    auditContractCode: "/api/playground/audit/auditContractCode",
+    report: "/api/playground/report",
+  },
+  [AuditType.SAVE_GAS_FEE]: {
+    uploadContractCode: "/api/playground/adjustGasFee/uploadContractCode",
+    auditContractCode: "/api/playground/adjustGasFee/execute",
+    report: "/api/playground/adjustGasFee/report",
+  },
+};
+
 const uploadContractCodeSchema = z.object({ codeHash: z.string() });
 
-export async function uploadContractCode(files: FileContent[]) {
+export async function uploadContractCode(
+  auditType: AuditType,
+  files: FileContent[]
+) {
   const zippedData = fileContentToZip(files);
 
   const formData = new FormData();
@@ -27,7 +48,7 @@ export async function uploadContractCode(files: FileContent[]) {
   };
 
   const res = await fetch(
-    `/api/playground/audit/uploadContractCode`,
+    URL_CONFIG[auditType].uploadContractCode,
     requestInit
   );
 
@@ -46,12 +67,16 @@ export async function uploadContractCode(files: FileContent[]) {
 
 const auditSchema = z.object({ reportUrl: z.string() });
 
-export function useAudit(auditId?: string, transactionId?: string) {
+export function useAudit(
+  auditType: AuditType,
+  auditId?: string,
+  transactionId?: string
+) {
   return useSWRImmutable(
     auditId && transactionId ? `audit-${auditId}-${transactionId}` : undefined,
     async () => {
       const res = await fetch(
-        `/api/playground/audit/auditContractCode?auditId=${auditId}&transactionId=${transactionId}`
+        `${URL_CONFIG[auditType].auditContractCode}?auditId=${auditId}&transactionId=${transactionId}`
       );
 
       const data = await res.json();
@@ -75,11 +100,13 @@ const auditReportSchema = z.record(
   )
 );
 
-export function useAuditReport(auditId?: string) {
+export function useAuditReport(auditType?: AuditType, auditId?: string) {
   return useSWRImmutable(
     auditId ? `audit-report-${auditId}` : undefined,
     async () => {
-      const res = await fetch(`/api/playground/report/${auditId}`);
+      if (!auditType) return;
+
+      const res = await fetch(`${URL_CONFIG[auditType].report}/${auditId}`);
 
       const data = await res.json();
 
@@ -94,5 +121,6 @@ export function useAuditReport(auditId?: string) {
 export function useAuditReportSearchParam() {
   const params = useSearchParams();
   const auditId = params.get("auditId");
-  return useAuditReport(auditId || undefined);
-}
\ No newline at end of file
+  const auditType = params.get("auditType") as AuditType | null;
+  return useAuditReport(auditType || undefined, auditId || undefined);
+}
diff --git a/lib/set-search-params.ts b/lib/set-search-params.ts
index 239f4a1..a70bc1f 100644
--- a/lib/set-search-params.ts
+++ b/lib/set-search-params.ts
@@ -9,11 +9,16 @@ export function useSetSearchParams() {
   const router = useRouter();
 
   const createQueryString = useCallback(
-    (key: string, value?: string) => {
+    (paramsObj: Record<string, string | undefined>) => {
       const params = new URLSearchParams(searchParams.toString());
-      params.delete(key);
 
-      if (value) params.set(key, value);
+      Object.keys(paramsObj).forEach((key) => {
+        params.delete(key);
+        const value = paramsObj[key];
+        if (value) {
+          params.set(key, value);
+        }
+      });
 
       const res = params.toString();
 
@@ -24,7 +29,7 @@ export function useSetSearchParams() {
     [searchParams]
   );
 
-  return (key: string, value?: string) => {
-    router.push(pathname + createQueryString(key, value));
+  return (paramsObj: Record<string, string | undefined>) => {
+    router.push(pathname + createQueryString(paramsObj));
   };
 }
diff --git a/next.config.mjs b/next.config.mjs
index e80071f..efbdc6f 100644
--- a/next.config.mjs
+++ b/next.config.mjs
@@ -38,6 +38,10 @@ if (process.env.NODE_ENV === "development") {
         source: "/api/playground/report/:path*",
         destination: `https://playground-next.test.aelf.dev/api/playground/report/:path*`,
       },
+      {
+        source: "/api/playground/adjustGasFee/:path*",
+        destination: `https://playground-next.test.aelf.dev/api/playground/adjustGasFee/:path*`,
+      },
     ];
   };
 }