Amazon Cognito

Simple and Secure User Sign-Up, Sign-In, and Access Control

Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. Amazon Cognito scales to millions of users and supports sign-in with social identity providers, such as Apple, Facebook, Google, and Amazon, and enterprise identity providers via SAML 2.0 and OpenID Connect.

50,000 active users free

per month with the AWS Free Tier

Get started for free »

Spend your time creating great apps.

Let Amazon Cognito handle authentication.

Secure and scalable identity store

Amazon Cognito User Pools provide a secure identity store that scales to millions of users. Cognito User Pools can be more easily set up without provisioning any infrastructure, and all members of the user pool have a directory profile that you can manage through a Software Development Kit (SDK).

It really is this easy

iOS Objective C
Android
iOS Swift
React Native
Web Apps

iOS Objective C

// iOS Objective-C
// AppDelegate.m
- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey, id> *)options {
  return [[AWSCognitoAuth defaultCognitoAuth] application:app openURL:url options:options];
}
// ViewController.m
AWSCognitoAuth * cognitoAuth = [AWSCognitoAuth defaultCognitoAuth];
[cognitoAuth getSession:self completion:^(AWSCognitoAuthUserSession * _Nullable session, NSError * _Nullable error) {
  if(error) {
    NSLog(@"Error: %@", error.userInfo[@"error"]);
  } else {
    //Do something with session
    NSLog(@"Claims: %@", t.result.idToken.claims);       
  }
}];

Android

//Android
// 1) -- Create an instance of Auth --
Auth.Builder builder = new Auth.Builder()
  .setAppClientId(getString(R.string.cognito_client_id));    
  .setAppCognitoWebDomain(getString(R.string.cognito_web_domain));
  .setApplicationContext(getApplicationContext());
  .setAuthHandler(new callback());
  .setSignInRedirect(getString(R.string.app_redirect_signin));
  .setSignOutRedirect(getString(R.string.app_redirect_signout));
  .setScopes(userScopes);
  auth = builder.build();
 
// 2) – Set up url redirect in your app manifest --
<intent-filter>
  <data android:host="YOUR_REDIRECT_URI_AUTHORITY"android:scheme="YOUR_REDIRECT_SCHEME"/>
</intent-filter>
 
// 3) -- Get tokens for your user --
auth.getSession();

iOS Swift

// iOS Swift
// AppDelegate.swift
func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
  return AWSCognitoAuth.default().application(app, open: url, options: options)
}
// ViewController.swift
let cognitoAuth = AWSCognitoAuth.default()
cognitoAuth.getSession(self)  { (session:AWSCognitoAuthUserSession?, error:Error?) in
  if(error != nil) {
    print((error! as NSError).userInfo["error"] as? String)
   }else {
   //Do something with session
  }
}

React Native

// Add 'aws-amplify' and 'aws-amplify-react-native' libraries into your application

// Configure Auth category with your Amazon Cognito credentials
Amplify.configure({
    Auth: {
        identityPoolId: 'XX-XXXX-X:XXXXXXXX-XXXX', // Amazon Cognito Identity Pool ID
        region: 'XX-XXXX-X', // Amazon Cognito Region
    }
});

// The withAuthenticator component adds Sign Up and Sign In capabilities to your app 
export default withAuthenticator(class App extends React.Component {
     // ... your main component
});

Web Apps

// Add 'aws-amplify' library into your application

// Configure Auth category with your Amazon Cognito credentials
Amplify.configure({
    Auth: {
        identityPoolId: 'XX-XXXX-X:XXXXXXXX-XXXX', // Amazon Cognito Identity Pool ID
        region: 'XX-XXXX-X', // Amazon Cognito Region
    }
});

// Call Auth.signIn with user credentials
Auth.signIn(username, password)
    .then(user => console.log(user))
    .catch(err => console.log(err));

Trusted by developers

Pay only for what you use. No minimums.

If you are using Amazon Cognito Identity to create a User Pool, you pay based on your monthly active users (MAUs) only. A user is counted as a MAU if, within a calendar month, there is an identity operation related to that user, such as sign-up, sign-in, token refresh, password change, or a user account attribute is updated. You are not charged for subsequent sessions or for inactive users within that calendar month.

Pricing Tier (MAUs)	Price per MAU
First 50,000	Free
Next 50,000	$0.00550
Next 900,000	$0.00460
Next 9,000,000	$0.00325
Greater than 10,000,000	$0.00250

For users who sign in through SAML or OIDC federation, the price for MAUs above the 50 MAU free tier is $0.015 per MAU. Using the Federated Identities feature to get AWS credentials for authenticated or guest users is always free with Amazon Cognito. Read more about our pricing here.

Check out the product features

Learn more about adding user sign-up, sign-in, and access control to your web and mobile apps.

Learn more

Instantly get access to the AWS Free Tier.

Start building in the console

Get started building with Amazon Cognito in the AWS Management Console.