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Instead of Duo Auth API

Duo Auth API alternatives

Apps that do what Duo Auth API does, from the multi-factor authentication apis list, the ones you can start free with first.

1. 1

   OpenOTP Authentication Server

   by OpenOTP Authentication Server

   Free plan AndroidAPIiPhone+5
   7.3 Free plan · 30-day trial Visit site
2. 2

   privacyIDEA

   Free plan AndroidAPIiPhone+4
   7.3 Open source Visit site
3. 3 S

   Sinch Verification API

   Free plan AndroidAPIiPhone+1
   7.2 Visit site
4. 4 S

   Stytch

   Free plan AndroidAPIiPhone+1
   7.2 Free plan Visit site
5. 5

   Plivo Verify

   Free plan APIWeb
   7.0 Visit site
6. 6

   Authsignal

   Free trial AndroidAPIiPhone+1
   6.6 From $499/mo · 30-day trial Visit site
7. 7

   LoginRadius

   Free trial AndroidAPIiPhone+2
   6.3 Pricing on request · 14-day trial Visit site
8. 8 T

   TraitWare SDK

   Free trial AndroidAPIExtension+6
   5.9 Pricing on request Visit site
9. 9 T

   Twilio Verify

   Free trial APIWeb
   5.6 From $0.05 Visit site
10. 10 Y

    YubiCloud

    Free plan Web
    5.6 Free plan Visit site
11. 11 I

    Infobip 2FA

    Paid Web
    4.5 60-day trial Visit site
12. 12 T

    Telesign Verify

    Paid AndroidiPhoneWeb
    4.5 Visit site
13. 13 Y

    Yubico SDKs

    Paid AndroidiPhoneLinux+2
    4.4 Open source Visit site
14. 14 V

    Vonage Verify

    Paid Web
    4.3 Visit site
15. 15 T

    Telnyx Verify

    Paid Web
    4.1 From $0.03 Visit site
16. 16 R

    Rublon REST API

    Paid
    3.9 Pricing on request Visit site

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