Telegram Gateway is the cheapest way to verify phone numbers of users. It allows any service to send authorization codes through Telegram instead of traditional SMS – offering a powerful and convenient way to lower costs while increasing the security and delivery speed of your codes to Telegram’s 950+ million monthly active users.

Reduce Acquisition Costs

Verification via Telegram costs $0.01 per delivered code – greatly reducing operating costs for your service. By comparison, SMS verification can cost up to 50 times more per code. The Telegram Verification Platform also ensures instant delivery of your messages – unlike SMS, which can take several minutes to arrive and have failure rates as high as 5%.

Deliver Messages Securely

Telegram offers a proven encryption protocol and open-source, verifiable apps. In contrast, traditional SMS methods are not encrypted (anyone can read them!) and susceptible to vulnerabilities – such as carrier trust issues, sender forgery, and SIM swap attacks. By using Telegram, you can significantly enhance security and guarantee a more robust, encrypted, and reliable authorization process.

Who provides the contact number for users?

Services using the Gateway API must provide the relevant phone number for each message they send. All phone numbers they use must be from users who voluntarily shared their number with the service in order to receive messages to their registered Telegram account.
Telegram does not disclose user phone numbers to services that utilize the Telegram Verification Platform.
Do my users need to opt-in to receive my messages?

Yes. The registered phone numbers of Telegram users are always private – so users must voluntarily opt-in by sharing their phone number with your service and agreeing to receive your messages on Telegram.
What phone number format should I use?

All phone numbers should be provided in E.164 format.
How can I test my authorization flow?

To test the Gateway API, you can simply send codes to your own phone number on Telegram – all messages to yourself are free of charge.
Can I transfer funds between Gateway accounts?

No, transferring funds between Verification Platform accounts is currently not supported. All funds transferred to your account constitute advance-paid credits and cannot be transferred or withdrawn.
How do I check if a user can receive my messages on Telegram?

You can use the API method to check if a user can receive your messages on Telegram. If they cannot, your request will be free of charge.

TESOFT LTDCompany Number: 16064653

Phone: +44 7488 84 85 80Email: office@tesoft.ukAddress: Suite 13093, 43 Bedford Street, London WC2E 9HA, England

Created by

TESOFT LTDCompany Number: 16064653

Phone: +44 7488 84 85 80Email: office@tesoft.ukAddress: Suite 13093, 43 Bedford Street, London WC2E 9HA, England

Created by

Yes. The registered phone numbers of Telegram users are always private – so users must voluntarily opt-in by sharing their phone number with your service and agreeing to receive your messages on Telegram.

What phone number format should I use?

All phone numbers should be provided in E.164 format.

How can I test my authorization flow?

To test the Gateway API, you can simply send codes to your own phone number on Telegram – all messages to yourself are free of charge.

Can I transfer funds between Gateway accounts?

No, transferring funds between Verification Platform accounts is currently not supported. All funds transferred to your account constitute advance-paid credits and cannot be transferred or withdrawn.

How do I check if a user can receive my messages on Telegram?

You can use the API method to check if a user can receive your messages on Telegram. If they cannot, your request will be free of charge.