diff --git a/package-lock.json b/package-lock.json
index 42763eb..c4f4e2c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,6 +16,7 @@
         "@types/node": "^16.18.119",
         "bcrypt": "^5.1.1",
         "concurrently": "^9.0.1",
+        "cors": "^2.8.5",
         "deterministic-object-hash": "^2.0.2",
         "dotenv": "^16.4.5",
         "express": "^4.21.1",
@@ -1835,6 +1836,19 @@
       "version": "1.0.6",
       "license": "MIT"
     },
+    "node_modules/cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "license": "MIT",
+      "dependencies": {
+        "object-assign": "^4",
+        "vary": "^1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/create-require": {
       "version": "1.1.1",
       "devOptional": true,
diff --git a/package.json b/package.json
index c0f6a7f..36467d4 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
     "@types/node": "^16.18.119",
     "bcrypt": "^5.1.1",
     "concurrently": "^9.0.1",
+    "cors": "^2.8.5",
     "deterministic-object-hash": "^2.0.2",
     "dotenv": "^16.4.5",
     "express": "^4.21.1",
diff --git a/src/index.ts b/src/index.ts
index 5888a9a..ff4cd62 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,6 +4,7 @@ import express, {
   type Response,
   type NextFunction,
 } from 'express';
+import cors from 'cors';
 import swaggerJsDoc from 'swagger-jsdoc';
 import swaggerUi from 'swagger-ui-express';
 import swaggerOptions from '@/swagger';
@@ -29,6 +30,8 @@ process.on('uncaughtException', (error: Error) => {
 const app = express();
 const logger = createLogger();
 
+app.use(cors());
+
 app.get('/', (req, res) => {
   res.json({
     deployedCommitHash: `https://github.com/gitcoinco/checker-api/commit/${execSync('git rev-parse HEAD').toString().trim()}`,