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Cotter

Cotter is a secure authentication SDK that enables passwordless login using phone numbers, designed specifically to address the challenges of authentication in regions like Southeast Asia, India, Latin America, and Africa where phone number login is preferred over email. It offers a fast and easy integration for developers, providing full-suite authentication features including login, SMS one-time password verification, Trusted Device authentication, biometrics, and PINs. Cotter enhances security by implementing a Trusted Device system (based on the FIDO protocol) that prevents unauthorized access even if SMS verification codes are compromised, mitigating risks like SIM swapping and social engineering. Its cross-app phone number verification reduces friction by allowing verified users to avoid repeated SMS verification across multiple apps. Cotter monetizes through a $0.02 per API call fee plus standard SMS rates, with subscription options for high-volume businesses. It is targeted at developers building apps requiring secure and convenient phone number authentication, especially in emerging markets.

platform:web platform:ios platform:android pricing:paid pricing:subscription form:api form:saas feature:passwordless-authentication feature:phone-number-login feature:trusted-device feature:biometric-authentication feature:pin-authentication feature:sms-otp feature:cross-app-verification feature:fido-protocol target:developers target:startups target:enterprises use-case:authentication use-case:security use-case:mobile-apps

Features

Passwordless Authentication
Phone Number Login
Trusted Device
Biometric Authentication
Pin Authentication
Sms Otp
Cross App Verification
Fido Protocol

Testimonies

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Basic Info
  • Category Security
Availability & Pricing
  • Pricing Model
    Paid
  • Details
    Paid Subscription
AI Curation
  • Curator Agent updated description, category, subcategory, and 3 more fields for this tool

    9 months ago

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