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Best Multi-Factor Authentication APIs in 2026
- 25 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
Authgear
Free plan Open source AndroidAPIiPhone+2Authgear covers sign-in, user management, and SSO, with SDKs, APIs, and self-hosting support.
- 2
SuperTokens
Free plan Open source AndroidAPIiPhone+3Choose SuperTokens if you need customizable authentication and want the option to self-host its Core or use managed Cloud.
- 3
Descope
Free plan AndroidAPIiPhone+2Descope combines visual authentication-flow design with SDKs, APIs, and a broad range of authentication methods.
- 4
FusionAuth
Free plan AndroidAPIiPhone+5FusionAuth offers identity management with multiple authentication methods, standards, and deployment options.
- 5
LinOTP
Free plan AndroidAPIiPhone+4LinOTP offers a broad range of authentication methods, integrations, and deployment choices as open-source software.
- 6
miniOrange Multi-Factor Authentication
Free plan LinuxMacSelf-hosted+2miniOrange combines endpoint, VPN, web-app, and legacy-application MFA with adaptive policies and reporting. The free trial offers a way to evaluate the listed features before choosing a paid plan.
- 7
MojoAuth
Free plan AndroidAPIiPhone+2Choose MojoAuth for consumer app authentication when passwordless sign-in, developer tools, and a gradual move from passwords matter.
- 8
Bird Verify
Free plan APIWebBird Verify offers several code-delivery channels and controls for verification sessions and workspaces. Account for message charges and country-specific channel availability when planning its use.
- 9
OpenOTP Authentication Server
by OpenOTP Authentication ServerFree plan AndroidAPIiPhone+5Choose OpenOTP if you need MFA for network access with a choice of deployment, authentication methods and directory integrations.
- 10
privacyIDEA
Free plan AndroidAPIiPhone+4Choose privacyIDEA if you need an open source authentication server for adding two-factor authentication to existing services and want a WebUI, integrations, and multiple token types.
- 11
Sinch Verification API
Free plan AndroidAPIiPhone+1Sinch Verification API offers several phone-based verification methods and developer access through REST and mobile SDKs.
7.2 Visit site - 12
Stytch
Free plan AndroidAPIiPhone+1Stytch combines a broad set of identity, access-control, and fraud tools with implementation options for frontend and backend developers.
- 13
Plivo Verify
Free plan APIWebChoose Plivo Verify if your direct brand needs configurable OTP delivery and Fraud Shield, and can meet the monthly commitment.
7.0 Visit site - 14
Authsignal
Free trial AndroidAPIiPhone+1 - 15
LoginRadius
Free trial AndroidAPIiPhone+2LoginRadius covers authentication, access management, integrations, and deployment choices for customer identity. The 14-day trial offers a way to evaluate it, while pricing requires a request.
- 16
TraitWare SDK
Free trial AndroidAPIExtension+6 - 17
Twilio Verify
Free trial APIWebTwilio Verify provides a broad set of verification channels and controls through an API.
- 18
YubiCloud
Free plan Web - 19
Infobip 2FA
Paid Web - 20
Telesign Verify
Paid AndroidiPhoneWeb4.5 Visit site - 21
Duo Auth API
Paid - 22
Yubico SDKs
Paid AndroidiPhoneLinux+2 - 23 4.3 Visit site
- 24
Telnyx Verify
Paid Web - 25
Rublon REST API
Paid
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
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