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Android API Reference

Android API Reference

#Overview

The Magic SDK for Android is your entry-point to secure, passwordless authentication for your mobile app. This guide will cover some important topics for getting started with Android APIs and to make the most of Magic's features.

Magic can support either server-based or serverless web applications. It is up to the developers to implement the Admin SDK to validate the DID Token.

#Getting Started

The Magic class is the entry-point to the Magic SDK. It must be instantiated with a Magic publishable key. The minimum Android version supported by the Android Magic SDK is version 24.

#Installation

Magic SDK is available in mavenCentral. Simply add the following to your build.gradle and settings.gradle, respectively.

Groovy
01// build.gradle file
02

03dependencies {
04    implementation 'link.magic:magic-android:9.1.0'
05    implementation 'org.web3j:core:4.8.8-android' 
06}
Groovy
01// settings.gradle file
02

03repositories {
04    mavenCentral()
05}

Sync the project with new dependencies settings.

#Constructor

#Magic()

Parameter

Type

Definition

context

Context

Android Context object

apiKey

String

Your publishable API Key retrieved from the Magic Dashboard.

ethNetwork?

EthNetwork

An enum with values Mainnet and Goerli. Use customNodeConfiguration for other network options.

Defaults to Ethereum Mainnet.

customNodeConfiguration?

CustomNodeConfiguration

A custom node configuration with the following shape: ⁠ ⁠

rpcUrl (String): A URL pointing to your custom Ethereum Node. ⁠ ⁠

chainId? (Number): Some Node infrastructures require you to pass an explicit chain ID. If you are aware that your Node requires this configuration, pass it here as an integer. ⁠

locale?

String

Customize the language of Magic's modal, email and confirmation screen. See Localization for more.

#Initialization

Kotlin
01class MagicDemoApp: Application() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate() {
06        magic = Magic(this, "PUBLISHABLE_API_KEY")
07        super.onCreate()
08    }
09}

#Auth Module

The Auth Module and its members are accessible on the Magic SDK instance by the auth property.

Kotlin
01import link.magic.android.Magic
02

03var magic: Magic
04

05magic.auth;
06magic.auth.loginWithSMS;
07magic.auth.loginWithEmailOTP;

#loginWithSMS

note

Only available with Dedicated Wallet

Authenticate a user passwordlessly using a one-time code sent to the specified phone number.

List of Currently Blocked Country Codes

#Arguments

  • context (Context): Global information about application environment
  • configuration (LoginWithSMSConfiguration):
    • phoneNumber (str): The user phone number to log in with

#Returns

  • DIDToken: Response<String>() - The function resolves upon authentication request success and rejects with a specific error code if the request fails. The resolved value is a Decentralized ID token with a default 15-minute lifespan.

#Example

Kotlin
01class MagicActivity: AppCompatActivity() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate(savedInstanceState: Bundle?) {
06        super.onCreate(savedInstanceState)
07

08        magic = Magic(this, "PUBLISHABLE_API_KEY")
09    }
10

11   fun login(v: View) {
12        val phoneNumber = findViewById<EditText>(R.id.phone_number_input)
13        val configuration = LoginWithSMSConfiguration(phoneNumber.text.toString())
14        val completable = magic.auth.loginWithSMS(configuration)
15

16        // Logging in
17        completable.whenComplete { response: DIDToken?, error: Throwable? ->
18            if (error != null) {
19                // Handle error
20            }
21            if (response != null && !response.hasError()) {
22                Log.d("Magic", "You're logged in!" + response.result)
23            } else {
24                Log.d("Magic", "Not Logged in")
25            }
26        }
27    }
28}

#loginWithEmailOTP

note

Only available with Dedicated Wallet

Authenticate a user passwordlessly using an email one-time code sent to the specified user's email address.

#Arguments

  • context (Context): Global information about application environment
  • configuration (LoginWithEmailOTPConfiguration):
    • email (str): The user email to log in with

#Returns

  • DIDToken: Response<String>() - The function resolves upon authentication request success and rejects with a specific error code if the request fails. The resolved value is a Decentralized ID token with a default 15-minute lifespan.

#Example

Kotlin
01class MagicActivity: AppCompatActivity() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate(savedInstanceState: Bundle?) {
06        super.onCreate(savedInstanceState)
07

08        magic = Magic(this, "PUBLISHABLE_API_KEY")
09    }
10

11   fun login(v: View) {
12        val email = findViewById<EditText>(R.id.email_input)
13        val configuration = LoginWithEmailOTPConfiguration(email.text.toString())
14        val completable = magic.auth.loginWithEmailOTP(configuration)
15

16        // Logging in
17        completable.whenComplete { response: DIDToken?, error: Throwable? ->
18            if (error != null) {
19                // Handle error
20            }
21            if (response != null && !response.hasError()) {
22                Log.d("Magic", "You're logged in!" + response.result)
23            } else {
24                Log.d("Magic", "Not Logged in")
25            }
26        }
27    }
28}

#Wallet Module

The Wallet Module and its members are accessible on the Magic SDK instance by the wallet property.

Kotlin
01import link.magic.android.Magic
02

03var magic: Magic
04

05magic.wallet;
06magic.wallet.connectWithUI;
07magic.wallet.showUI;
08magic.wallet.requestUserInfoWithUI;

#connectWithUI

Renders a simple login form UI to collect the user's email address and authenticate them passwordlessly using a one-time passcode (OTP) sent to their email address they input.

#Arguments

  • context (Context): Global information about application environment

#Returns

  • A promiEvent which returns an String[] when resolved: An array of user accounts that are connected, with the first element being the current public address of the user. You can read more on PromiEvents here.

#Example

Kotlin
01private fun mcLogin(v: View) {
02    val accounts = (magic as Magic).wallet.connectWithUI(this)
03    accounts.whenComplete { response: ConnectWithUIResponse?, error: Throwable? ->
04        if (error != null) {
05            Log.d("error", error.localizedMessage)
06        }
07        if (response != null && !response.hasError()) {
08           response.result?.let { Log.d("Your Public Address is:", it.first()) }
09           startTabActivity()
10       } else {
11            response?.result?.let { Log.d("Your Public Address is:", it.first()) }
12            Log.i("mcLogin RESPONSE", "Response is: ${response.toString()}")
13            Log.d("MC Login", "Magic Connect Not logged in")
14        }
15    }
16}

#showUI

Displays the fully navigable wallet to the user that adheres to the toggled configurations on your developer dashboard’s Widget UI tab. ⁠ ⁠This is only supported for users who login with email or Google and not third party wallets such as metamask. User must be signed in for this method to return or else it will throw an error.

#Arguments

  • context (Context): Global information about application environment

#Returns

  • Promise which resolves when the user closes the window

Optionally, add a .on() handler to catch the disconnect event emitted when the user logs out from the wallet widget.

#Example

Kotlin
01fun showUI(v: View) {
02    val completable = magic.wallet.showUI(this.requireContext())
03    completable.whenComplete { response: ShowWalletResponse?, error: Throwable? ->
04        if (error != null) {
05            Log.d("error", error.localizedMessage)
06        }
07        if (response != null) {
08            tabActivity.toastAsync("show Wallet:" + response.result)
09        }
10    }
11}

#requestUserInfoWithUI

Displays the wallet widget within an iframe that prompts the user to consent to sharing information with the requesting dApp with OpenID profile scopes. Currently, the only profile scope that can be requested is a verified email. Collecting a verified email address from third-party wallet users (MetaMask, Coinbase Wallet, etc.) is a premium feature but included in the free trial period (see pricing). User must be signed in for this method to return or else it will throw an error.

#Arguments

  • context (Context): Global information about application environment
  • configuration (RequestUserInfoWithUIConfiguration):
    • email (str): The user email to log in with

#Returns

  • Promise which resolves when the user closes the window

#Example

Kotlin
01fun requestUserInfoWithUI(v: View) {
02        val config = RequestUserInfoWithUIConfiguration(
03            scope = WalletUserInfoScope(email = WalletUserInfoEmailOptions.required)
04        )
05        val completable = magic.wallet.requestUserInfoWithUI(this.requireContext(), config)
06        completable.whenComplete { response: RequestUserInfoWithUIResponse?, error: Throwable? ->
07            if (error != null) {
08                Log.d("error", error.localizedMessage)
09            }
10            if (response != null) {
11                tabActivity.toastAsync("Request User Info" + response.result.email)
12            }
13        }
14    }

#User Module

The User Module and its members are accessible on the Magic SDK instance by the user property.

Kotlin
01import link.magic.android.Magic
02

03var magic: Magic
04

05magic.user
06magic.user.updateEmail
07magic.user.getIdToken
08magic.user.generateIdToken
09magic.user.getMetadata
10magic.user.isLoggedIn
11magic.user.logout
12magic.user.showSettings
13magic.user.updatePhoneNumber
14magic.user.recoverAccount
15magic.user.revealPrivateKey

#updateEmail

note

Only available with Dedicated Wallet

Initiates the update email flow that allows a user to change to a new email.

#Arguments

  • context (Context): Global information about application environment
  • configuration (UpdateEmailConfiguration):
    • email (str): The user email to update with
    • showUI (boolean): If true, show an out-of-the-box pending UI while the request is in flight

#Returns

  • UpdateEmailResponse: Response<Boolean>() - The Completable resolves with a true boolean value if update email is successful and rejects with a specific error code if the request fails

#Example

Kotlin
01class MagicActivity: AppCompatActivity() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate(savedInstanceState: Bundle?) {
06        super.onCreate(savedInstanceState)
07

08        magic = Magic(this, "PUBLISHABLE_API_KEY")
09    }
10

11    // Assuming user is logged in
12    fun updateEmail(v: View) {
13

14        val configuration = UpdateEmailConfiguration("new_user_email@example.com")
15        val completable = magic.user.updateEmail(this, configuration)
16        completable.whenComplete { response: UpdateEmailResponse?, error: Throwable? ->
17            if (response != null) {
18                Log.d("Magic", response.result.toString()) // "True"
19            } else {
20                // handle error
21            }
22        }
23    }
24}

#getIdToken

note

Only available with Dedicated Wallet

Generates a Decentralized Id Token which acts as proof of authentication to resource servers.

#Arguments

  • context (Context): Global information about application environment
  • configuration (GetIdTokenConfiguration):
    • lifespan (number): will set the lifespan of the generated token. Defaults to 900s (15 mins).

#Returns

  • PromiEvent<string> - Base64-encoded string representation of a JSON tuple representing [proof, claim]
Kotlin
01class MagicActivity: AppCompatActivity() {
02    lateinit var magic: Magic
03

04    override fun onCreate(savedInstanceState: Bundle?) {
05        super.onCreate(savedInstanceState)
06

07        magic = Magic(this, "PUBLISHABLE_API_KEY")
08    }
09

10    // Assuming user is logged in
11    fun getIdToken(v: View) {
12        val configuration = GetIdTokenConfiguration(lifespan = 900)
13        val completable = magic.user.getIdToken(configuration)
14        completable.whenComplete { response: GetIdTokenResponse?, error: Throwable? ->
15            if (response != null) {
16                Log.d("Magic", response.result)
17            } else {
18                // handle Error
19            }
20        }
21    }
22}

#generateIdToken

note

Only available with Dedicated Wallet

Generates a Decentralized Id Token with optional serialized data.

#Arguments

  • configuration (GenerateIdTokenConfiguration):
    • lifespan (number): will set the lifespan of the generated token. Defaults to 900s (15 mins).
    • attachment (str): will set a signature of serialized data in the generated token. Defaults to "none".

#Returns

  • GenerateIdTokenResponse: Response<String>() - Base64-encoded string representation of a JSON tuple representing [proof, claim]

#Example

Kotlin
01class MagicActivity: AppCompatActivity() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate(savedInstanceState: Bundle?) {
06        super.onCreate(savedInstanceState)
07

08        magic = Magic(this, "PUBLISHABLE_API_KEY")
09    }
10

11    // Assuming user is logged in
12    fun generateIdToken(v: View) {
13        val configuration = GenerateIdTokenConfiguration(lifespan = 900, attachment = "none")
14        val completable = magic.user.generateIdToken(configuration)
15

16        completable.whenComplete { response: GenerateIdTokenResponse?, error: Throwable? ->
17            if (response != null) {
18                Log.d("Magic", response.result)
19            } else {
20                // handle Error
21            }
22        }
23    }
24}

#getMetadata

Retrieves information for the authenticated user.

#Arguments

  • None.

#Returns

  • GetMetadataResponse: Response<UserMetadataResponse>() - The Completable containing the issuer, email, phone number, and cryptographic public address of the authenticated user.
    • issuer (str): The Decentralized ID of the user. In server-side use-cases, we recommend this value to be used as the user ID in your own tables.
    • email (str): Email address of the authenticated user
    • phoneNumber (str): Phone number of the authenticated user
    • publicAddress (str): The authenticated user's public address (a.k.a.: public key). Currently, this value is associated with the Ethereum blockchain.

#Example

Kotlin
01class MagicActivity: AppCompatActivity() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate(savedInstanceState: Bundle?) {
06        super.onCreate(savedInstanceState)
07

08        magic = Magic(this, "PUBLISHABLE_API_KEY")
09    }
10

11    // Assuming user is logged in
12    fun getMetadata(v: View) {
13        val completable = magic.user.getMetadata()
14        completable.whenComplete { response: GetMetadataResponse?, error: Throwable? ->
15            if (response != null) {
16                Log.d("Magic", "Email: " + response.result.email)
17                Log.d("Magic", "Issuer: " + response.result.issuer)
18            } else {
19                // handle Error
20            }
21        }
22    }
23}

#isLoggedIn

Checks if a user is currently logged in to the Magic SDK.

#Arguments

  • None

#Returns

  • IsLoggedInResponse: Response<Boolean>(): A boolean value indicating if a user is logged in

#Example

Kotlin
01class MagicActivity: AppCompatActivity() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate(savedInstanceState: Bundle?) {
06        super.onCreate(savedInstanceState)
07

08        magic = Magic(this, "PUBLISHABLE_API_KEY")
09    }
10

11    // Assuming user is logged in
12    fun isLoggedIn(v: View) {
13        val completable = magic.user.isLoggedIn()
14        completable.whenComplete { response: IsLoggedInResponse?, error: Throwable? ->
15            if (response != null && response.result) {
16                Log.d("Magic", "You're Logged In")
17            }
18            if (error != null) {
19                // handle Error
20            }
21        }
22    }
23}

#logout

Logs out the currently authenticated Magic user.

#Arguments

  • None

#Returns

  • LogoutResponse: Response<Boolean>(): A boolean value indicating if a user has been logged out.

#Example

Kotlin
01class MagicActivity: AppCompatActivity() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate(savedInstanceState: Bundle?) {
06        super.onCreate(savedInstanceState)
07

08        magic = Magic(this, "PUBLISHABLE_API_KEY")
09    }
10

11    // Assuming user is logged in
12    fun logout(v: View) {
13        val completable = magic.user.logout()
14        completable.whenComplete { response: LogoutResponse?, error: Throwable? ->
15            if (response != null && response.result) {
16                Log.d("Magic", "You're logged out!")
17            }
18            if (error != null) {
19                // handle Error
20            }
21        }
22    }
23}

#showSettings

Displays an iframe with the current user’s settings. Allows for users to update their email address, enable multi-factor authentication, and add a recovery factor.

note

Only available with Dedicated Wallet. Access to MFA and account recovery require paid add-ons.

#Arguments

  • page? (String): Optional argument to deeplink to a specific page ('mfa' | 'update-email' | 'recovery')

#Returns

  • Promise which resolves when the user closes the window

#Example

Kotlin
01class MagicActivity: AppCompatActivity() {
02

03    lateinit var magic: Magic
04

05    override fun onCreate(savedInstanceState: Bundle?) {
06        super.onCreate(savedInstanceState)
07

08        magic = Magic(this, "PUBLISHABLE_API_KEY")
09    }
10

11    // Assuming user is logged in
12    fun showSettings(v: View) {
13        val result = magic.user.showSettings()
14        result.whenComplete { response: GetMetadataResponse?, error: Throwable? ->
15            if (error != null) {
16                Log.d("error", error.localizedMessage)
17            }
18            if (response != null) {
19                tabActivity.toastAsync("Email: " + response.result.email + "\n" + "issuer: " + response.result.issuer + "\n")
20            }
21        }
22    }
23}

#updatePhoneNumber

Initiates the update phone number flow that allows a user to change their phone number.

#Arguments

  • context (Context): Global information about application environment
  • configuration:
    • phoneNumber (str): The user phone number to update with
    • showUI (boolean): If true, show an out-of-the-box pending UI while the request is in flight

#Returns

  • PromiEvent<boolean>: The promise resolves with a true boolean value if update email is successful and rejects with a specific error code if the request fails

#Example

Kotlin
01fun updateSMS(v: View) {
02    val completable = magic.user.updatePhoneNumber(this.requireActivity())
03    completable.whenComplete { updatePhoneNumberResponse: UpdatePhoneNumberResponse?, error: Throwable? ->
04        if (error != null) {
05           Log.d("error", error.localizedMessage)
06        }
07        if (updatePhoneNumberResponse != null) {
08           Log.d("Update phone number result", updatePhoneNumberResponse.result.toString())
09        }
10    }
11}

#recoverAccount

Initiates the account recovery flow that allows a user to recover their account using their email address.

#Arguments

  • email (str): The user email address to recover account with

#Returns

  • PromiEvent<boolean>: The promise resolves with a true boolean value if the account recovery is successful and rejects with a specific error code if the request fails

#Example

Kotlin
01private fun recoverAccount(v: View) {
02    val email = findViewById<EditText>(R.id.recovery_email_input)
03    val configuration = RecoverAccountConfiguration(email = email.text.toString())
04    val result = (magic as Magic).user.recoverAccount(this, configuration)
05    result.whenComplete { response: RecoverAccountResponse?, error: Throwable? ->
06        if (error != null) {
07            Log.d("error", error.localizedMessage)
08        }
09        if (response != null) {
10            var result = response.result
11            Log.d("recover account resp result", result.toString())
12            if (result != null) {
13                startTabActivity()
14           } else {
15                toastAsync("RecoverAccount error, consider using a different email")
16            }
17        }
18    }
19}

#revealPrivateKey

Displays an iframe revealing the current user’s private key. Allows for users to take their private key to another wallet. Neither Magic nor the developer can see this key; only the end user can.

#Arguments

  • None

#Returns

  • Promise which resolves when the user closes the window

#Example

Kotlin
01fun revealPrivateKey(v: View) {
02    val result = magic.user.revealPrivateKey(this.requireContext())
03    result.whenComplete { response: RevealPrivateKeyResponse?, error: Throwable? ->
04        if (error != null) {
05            Log.d("error", error.localizedMessage)
06        }
07        if (response != null) {
08            tabActivity.toastAsync("Key revealed")
09        }
10    }
11}

#OpenID Module

note

This module requires an enterprise agreement. For more details click here.

The OpenID Module and it's members are accessible on the Magic SDK instance by the openid property.

To use the OpenID Module in your application, install :magic:ext:oidc along with magic-android.

Groovy
01# In build.gradle
02implementation project(':magic:core')
03implementation project(':magic:ext:oidc')
04

05magic.openid;
06magic.openid.loginWithOIDC;

#loginWithOIDC

Authenticate users via your preferred OIDC client.

note

Only available with Dedicated Wallet.

#Arguments

  • jwt (String): The OIDC token from your identity provider

  • providerId (String): An alphanumeric ID provided by Magic after successful configuration of your identity provider

#Returns

  • PromiEvent<string | null>: The promise resolves upon authentication request success and rejects with a specific error code if the request fails. The resolved value is a Decentralized ID token with a default 15-minute lifespan.

#Example

Kotlin
01package link.magic.android.extension.oidc.*
02⁠
03magic = Magic(this, '<your_magic_api_key>')
04⁠
05private fun loginWithOIDC(v: View) {
06⁠   val providerId = findViewById<EditText>(R.id.provider_id_text)
07   val jwt = findViewById<EditText>(R.id.jwt_text)
08⁠
09   val configuration = OpenIdConfiguration(jwt.text.toString(),providerId.text.toString())
10

11   val did = magic.openid.loginWithOIDC(this, configuration)
12

13   did.whenComplete { response: DIDToken?, error: Throwable? ->
14     if (error != null) {
15       Log.d("error", error.localizedMessage)
16     }
17   
18     if (response != null && !response.hasError()) {
19       response.result?.let { Log.d("login", it) }
20     } else {
21       Log.d("login", "OpenID Not Logged in")
22     }
23   }
24}

#Resources

Previous

React Native

Next

iOS API Reference

Android API Reference
OverviewGetting StartedInstallationConstructorInitializationAuth ModuleloginWithSMSloginWithEmailOTPWallet ModuleconnectWithUIshowUIrequestUserInfoWithUIUser ModuleupdateEmailgetIdTokengenerateIdTokengetMetadataisLoggedInlogoutshowSettingsupdatePhoneNumberrecoverAccountrevealPrivateKeyOpenID ModuleloginWithOIDCResources

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© 2025 Magic Labs, Inc.

548 Market St., PMB 31387

San Francisco, California 94104-5401

Privacy Policy  |  Terms of Service

About

Blog
Brand Assets
Careers
Contact Us

Developers

Docs
Guides
GitHub
Pricing

Resources

Status Page
Trust Center
Whistleblower Hotline
Compliance
Security

Social

X
Discord
Farcaster
Linkedin
YouTube

© 2025 Magic Labs, Inc.

548 Market St., PMB 31387

San Francisco, California 94104-5401

Privacy Policy  |  Terms of Service

© 2025 Magic Labs, Inc.

548 Market St., PMB 31387

San Francisco, California 94104-5401

Privacy Policy  |  Terms of Service

About

Blog
Brand Assets
Careers
Contact Us

Developers

Docs
Guides
GitHub
Pricing

Resources

Status Page
Trust Center
Whistleblower Hotline
Compliance
Security

Social

X
Discord
Farcaster
Linkedin
YouTube