TambuaHelloduty
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Related Products
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About
SecondFactor is a cloud service for generating, sending, and verifying one-time passcodes (OTPs) for account sign-up, login, and other phone-verification workflows. Product and engineering teams integrate it through an API and SDKs for Kotlin, Swift, Dart, TypeScript, and server-side development, then manage authentication templates from a dashboard. For each OTP, its Price Intelligence Engine selects the lowest-cost eligible channel based on destination pricing and recipient eligibility. If delivery is not confirmed within eight seconds, automatic fallback tries the next eligible channel. SecondFactor supports SMS, WhatsApp, Viber, and RCS, subject to destination, recipient, and account setup. Delivery logs show the destination, channel, status, and cost for each request. The service handles OTP generation, delivery, and verification so teams can add phone verification to their applications and manage delivery across multiple channels and markets.
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About
Tambua is a developer-focused one-time password (OTP) verification API for applications serving users in African markets. Applications request a code and verify it through API calls, with delivery by SMS, WhatsApp, voice, email or M-PESA. Ordered channel fallback can route a code through another channel when delivery fails or times out. The service uses shared sender IDs and provides per-country pricing, signed webhooks, request logs, free test keys and a Node.js SDK. Developers can add verification to account sign-up, login and transaction-confirmation flows in fintech, e-commerce, gaming, logistics and other mobile or web applications. The API is intended for teams that need to verify phone numbers or confirm sensitive actions across African markets; channel availability and charges can vary by destination.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Not Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Vibe-coders and product teams at fintech, tech-enabled marketplaces, and international platforms that send OTPs to users in more than one country.
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Audience
Software developers, fintech, e-commerce, betting and gaming, logistics and mobile apps that need phone number verification, login and transaction verification across African markets.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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API
Offers API
Supported
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API
Offers API
Not Supported
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Screenshots and VideosNo images available
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Screenshots and VideosNo images available
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Supported
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationSecondFactor
Founded: 2020
Singapore
secondfactor.ai
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Company InformationHelloduty
Founded: 2020
Kenya
tambua.me
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Integrations
No info available.
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Integrations
No info available.
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