diff --git a/.github/workflows/build-api.yml b/.github/workflows/build-api.yml
index 1e437c2..e067fdd 100644
--- a/.github/workflows/build-api.yml
+++ b/.github/workflows/build-api.yml
@@ -13,9 +13,61 @@ env:
   IMAGE_PREFIX: ${{ github.repository }}
 
 jobs:
+  test-api:
+    name: Test API
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_USER: sigma
+          POSTGRES_PASSWORD: sigma
+          POSTGRES_DB: sigma_test
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd "pg_isready -U sigma -d sigma_test"
+          --health-interval 5s
+          --health-timeout 5s
+          --health-retries 10
+      redis:
+        image: redis:7
+        ports:
+          - 6379:6379
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 5s
+          --health-timeout 5s
+          --health-retries 10
+
+    env:
+      DATABASE_URL: postgres://sigma:sigma@localhost:5432/sigma_test
+      REDIS_URL: redis://localhost:6379
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo registry and build
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: sigma-api
+
+      - name: Build sigma-api (including tests)
+        working-directory: sigma-api
+        run: cargo build --tests --locked
+
+      - name: Run sigma-api tests
+        working-directory: sigma-api
+        run: cargo test -p sigma-api -- --test-threads=1
+
   build-api:
     name: Build API
     runs-on: ubuntu-latest
+    needs: test-api
     permissions:
       contents: read
       packages: write