diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..a167842
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,30 @@
+name: Code Check
+
+on:
+  push:
+    branches:
+      - main
+  pull_request: {}
+
+concurrency:
+  group: ${{ github.job }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    name: Lint
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'npm'
+      - name: Install dependencies
+        run: npm ci
+      - name: Lint
+        run: npm run lint:check
+      - name: Prettier
+        run: npm run format:check
diff --git a/package.json b/package.json
index 070df8e..9cbc0a0 100644
--- a/package.json
+++ b/package.json
@@ -10,11 +10,13 @@
     "postinstall": "npx prisma generate",
     "build": "nest build",
     "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
+    "format:check": "prettier --check \"src/**/*.ts\" \"test/**/*.ts\"",
     "serve": "nest start",
     "serve:dev": "nest start --watch",
     "serve:debug": "nest start --debug --watch",
     "serve:prod": "node dist/main",
     "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
+    "lint:check": "eslint \"{src,apps,libs,test}/**/*.ts\"",
     "test": "jest",
     "test:watch": "test jest --watch",
     "test:cov": "jest --coverage",
diff --git a/src/api/pairs/controller.ts b/src/api/pairs/controller.ts
index 985791f..a38da5b 100644
--- a/src/api/pairs/controller.ts
+++ b/src/api/pairs/controller.ts
@@ -149,9 +149,8 @@ the real response type is \`Array<Array<PairWithLiquidityAndTokenAddresses>>\``,
     @Query('only-listed') onlyListedStr: string, //false | true
   ): Promise<dto.PairWithLiquidityAndTokenAddresses[][]> {
     const onlyListed = !!onlyListedStr && onlyListedStr !== 'false';
-    const pairs = await this.pairsService.getAllPairsWithLiquidityInfo(
-      !!onlyListed,
-    );
+    const pairs =
+      await this.pairsService.getAllPairsWithLiquidityInfo(!!onlyListed);
     const edges = pairs.map((data) => ({
       data,
       t0: data.token0.address,