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Telesign

Phone Number, SMS & Identity Verification APIs

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Telesign is a communications and identity verification platform that provides APIs for SMS, voice, messaging channels, phone number intelligence, and user verification. It helps businesses onboard customers securely, detect suspicious behavior, protect account access, and prevent account takeovers. The platform combines digital identity signals with global communication capabilities to support fraud protection and customer engagement.

Key products include Intelligence and Phone ID for reputation scoring and phone number intelligence, Omnichannel Messaging for SMS, RCS, Viber, and WhatsApp, Phone Numbers for verified numbers in over 110 countries, Number Masking, Voice, SMS Verify, Silent Verification, Verify Plus, and Viber for Business. Machine learning and data science deliver identity risk recommendations, and the platform integrates with access management and internal fraud models.

Telesign is designed for enterprises and developers building customer onboarding, authentication, and communication workflows. Pricing is pay-as-you-go with no contracts or monthly fees, based on destination, with volume discounts available for committed use. A free trial account with test credits is available for SMS, SMS Verify, Verify Plus, Phone ID, Phone ID Contact, and Intelligence, supporting testing via code samples, SDKs in seven programming languages, or browser-based API Explorers.

12 alternatives to Telesign

Ranked by how well each tool replaces Telesign: shared features, audience, price and popularity.

  1. Didit

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    Covers 2 of 15 key features.

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  2. Sinch

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    Covers 2 of 15 key features.

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  4. Yoti

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  5. Jumio

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  6. MobileSMS.io

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  7. Kairos

    Instant Identity Verification powered by AI

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  8. Authy

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  9. Auth0

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    Covers 1 of 15 key features.

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  10. MyOTP.App

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    Covers 2 of 15 key features.

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  11. Trinsic

    Accept the world's digital IDs through a single API.

    Covers 2 of 15 key features and is open source.

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  12. Veriff

    The Enterprise Identity Verification Platform

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    53 out of 100 match$49/mo