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No. 9 of 28 ·RCS Business Messaging Software

Telesign Communications Platform

Web · API

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Freedom report

One barScore 5.4

  • Free tierNo free tier on record
  • Open codeNo open-source code on record
  • Runs widely1 of 6 device platforms
  • DocumentedPlans, terms and facts published

Telesign Communications Platform provides APIs for customer communications, verification, and identity insights. Its Messaging API supports SMS, MMS, email, RCS, WhatsApp, and Viber through one API, with routing that can redirect failed messages through another carrier route or channel. Telesign says its SMS API reaches more than 230 countries and territories and supports 80+ languages. Customers can purchase or lease phone numbers with area and country codes matched to geographic locations. Developer resources include code samples and SDKs for C#, PHP, curl, Node.js, Python, Java, and Ruby. A free trial account requires no credit card and includes $5 in credit that never expires. Telesign says its REST API uses TLS 1.2/1.3 and signed requests, and that the company is ISO 27001 certified and HIPAA compliant. Support is available 24/7 to current customers. Pricing is available on request. The Messaging API is not available for purchase or use in mainland China.

Who it is for

It suits developers and organizations building customer communication, verification, or identity-insight workflows through APIs. The trial and listed SDKs provide a starting point for integration work.

What is good

  • Messaging API supports six listed channels
  • SMS API reaches 230+ countries and territories
  • Trial requires no credit card and includes $5 credit
  • Support is available 24/7 to current customers

What to know first

  • Messaging API unavailable in mainland China
  • Pricing is available on request

Verdict

Telesign combines multi-channel messaging APIs with verification and identity insights. Its trial includes $5 in credit, while buyers should note the mainland China availability limit and request pricing.

Telesign Communications Platform plans and pricing

All plans
Telesign Communications Platform Not published Pricing is not stated on the opened pages; contact sales telesign.com · 30 Sept 2026

Compared on RCS business messaging software

Free plan
No
Channels supported
SMS, MMS, email, RCS, WhatsApp, Viber, voice
Pricing model
payg
Programmable voice
Yes
Programmable messaging
Yes
SDK platforms
C#, Java, Node.js, PHP, Python, Ruby
Phone number support
Yes

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