diff --git a/.github/workflows/check_fullstack_demo_java_pr.yaml b/.github/workflows/check_fullstack_demo_java_pr.yaml
new file mode 100644
index 000000000..32ea1ff0d
--- /dev/null
+++ b/.github/workflows/check_fullstack_demo_java_pr.yaml
@@ -0,0 +1,32 @@
+name: Check Fullstack Demo Java Pull Request
+
+on:
+  pull_request:
+    branches: [ "main" ]
+    paths:
+      - ".github/workflows/check_fullstack_demo_java_pr.yaml"
+      - "lib/java/fullstack_demo/**"
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up JDK
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+
+    - name: Build Fullstack Demo with Java
+      working-directory: ./lib/java/fullstack_demo
+      env:
+        CLERK_PERISHABLE_KEY: 12345
+        CLERK_SECRET_KEY: 12345
+      run: ./gradlew check
\ No newline at end of file
diff --git a/.github/workflows/check_fullstack_demo_ts_pr.yaml b/.github/workflows/check_fullstack_demo_ts_pr.yaml
new file mode 100644
index 000000000..88db22176
--- /dev/null
+++ b/.github/workflows/check_fullstack_demo_ts_pr.yaml
@@ -0,0 +1,31 @@
+name: Check Fullstack Demo TS Pull Request
+
+on:
+  pull_request:
+    branches: [ "main" ]
+    paths:
+      - ".github/workflows/check_fullstack_demo_ts_pr.yaml"
+      - "lib/typescript/fullstack_demo/**"
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Use Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20.x'
+
+    - name: Build Fullstack Demo with Node.js
+      working-directory: ./lib/typescript/fullstack_demo
+      env:
+        NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY: ${{ secrets.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY }}
+      run: |
+        npm ci
+        npm run build
\ No newline at end of file
diff --git a/.github/workflows/check_push.yml b/.github/workflows/check_push.yml
index 92b5d99f8..b813adc68 100644
--- a/.github/workflows/check_push.yml
+++ b/.github/workflows/check_push.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches: [ "main" ]
     paths:
+      - ".github/workflows/check_push.yml"
       - "lib/**"
       - "lesson_02/quiz/**"
       - "lesson_03/quiz/**"
@@ -21,10 +22,9 @@ on:
       - "lesson_15/tdd/**"
       - "lesson_16/objects/**"
       - "lesson_17/bank/**"
-
+      - "lesson_26/api/**"
 jobs:
   build:
-
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -142,10 +142,26 @@ jobs:
       working-directory: ./lesson_17/bank
       run: ./gradlew check
 
+    - name: Build Lesson 26 with Java
+      working-directory: ./lesson_26/api/java
+      run: ./gradlew check
+
+    - name: Build Lesson 26 with Node.js
+      working-directory: ./lesson_26/api/javascript/api_app
+      run: |
+        npm ci
+        npm run test
+
     - name: Build Fullstack Demo with Java
       working-directory: ./lib/java/fullstack_demo
+      env:
+        CLERK_PERISHABLE_KEY: 12345
       run: ./gradlew check
 
     - name: Build Fullstack Demo with Node.js
       working-directory: ./lib/typescript/fullstack_demo
-      run: npm ci
\ No newline at end of file
+      env:
+        NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY: ${{ secrets.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY }}
+      run: |
+        npm ci
+        npm run build
\ No newline at end of file