diff --git a/.github/workflows/test_mock-service_code.yml b/.github/workflows/test_mock-service_code.yml
index 32638e1e4a..1727d7a731 100644
--- a/.github/workflows/test_mock-service_code.yml
+++ b/.github/workflows/test_mock-service_code.yml
@@ -35,6 +35,10 @@ jobs:
         working-directory: ${{ env.workingDirectory }}
         run: 'npm run lint'
 
+      - name: Check for TS errors
+        working-directory: ${{ env.workingDirectory }}
+        run: 'npm run typecheck'
+
       - name: Test
         working-directory: ${{ env.workingDirectory }}
         run: 'npm run test'
diff --git a/.github/workflows/test_service_code.yml b/.github/workflows/test_service_code.yml
index 573780e07f..993699ea3f 100644
--- a/.github/workflows/test_service_code.yml
+++ b/.github/workflows/test_service_code.yml
@@ -39,6 +39,10 @@ jobs:
         working-directory: ${{ env.workingDirectory }}
         run: 'npm run knip'
 
+      - name: Check for TS errors
+        working-directory: ${{ env.workingDirectory }}
+        run: 'npm run typecheck'
+
       - name: Unit-Test
         working-directory: ${{ env.workingDirectory }}
         env:
diff --git a/services/121-service/package.json b/services/121-service/package.json
index dd754b0686..f00136bf4e 100644
--- a/services/121-service/package.json
+++ b/services/121-service/package.json
@@ -33,7 +33,9 @@
     "migration:run": "npm run typeorm migration:run -- -d ./src/datasource-manage-migrations.ts",
     "migration:revert": "npm run typeorm migration:revert -- -d ./src/datasource-manage-migrations.ts",
     "knip": "knip",
-    "knip:fix": "knip --fix-type files,exports,types"
+    "knip:fix": "knip --fix-type files,exports,types",
+    "typecheck": "tsc --noEmit",
+    "typecheck:dev": "tsc --noEmit --watch"
   },
   "private": true,
   "dependencies": {
diff --git a/services/mock-service/package.json b/services/mock-service/package.json
index 97b3e6bc4a..95d63d7b59 100644
--- a/services/mock-service/package.json
+++ b/services/mock-service/package.json
@@ -16,7 +16,9 @@
     "build": "nest build -p tsconfig.json",
     "start": "GLOBAL_121_VERSION=$(test -f \"VERSION.txt\" && cat VERSION.txt || echo $GLOBAL_121_VERSION)  node dist/main.js",
     "prestart:dev": "npm install --no-fund --no-audit",
-    "start:dev": "nest start -r tsconfig-paths/register -b swc -w -p tsconfig.json"
+    "start:dev": "nest start -r tsconfig-paths/register -b swc -w -p tsconfig.json",
+    "typecheck": "tsc --noEmit",
+    "typecheck:dev": "tsc --noEmit --watch"
   },
   "private": true,
   "dependencies": {