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Multi Factor (2FA) Authentication consolidated and automated. Receive your account verification codes all in Slack and access your shared accounts easily, and securely.
Phone numbers are real US mobile numbers that will work with all major online platforms.
Receive a verification code in a private or shared Slack channel via SMS or voice call instantly and securely.
Use numbers on any website and speed up login with your partners and employees by sharing MFA in Slack.
If you’re sharing a login with someone, there isn’t an easy way to properly secure your account - until now. Enable two-factor authentication and receive verification codes right in Slack.
Get started by adding the app to your Slack workspace.
Generate a unique virtual or mobile phone number that belongs only to you.
Turn on two step verification on your various online accounts.
A verification code will be sent to your Slack channel via text or voice call.
All non-voip numbers are USA based and will work with any service.
Refer to our support documentation for a full breakdown
All Non-VoIP numbers are USA based real phone numbers that will work with ALL online services.
We support both VoIP and Non-VoIP phone numbers. All plans include unlimited users and unlimited seats.
Non-voip plan is based on 100 SMS codes per month. If you require more reach out to support.
We know there's a lot to learn and read about all that Clerk can do. Here are some of the most frequently asked questions.
SMS verification, or SMS two-factor authentication (2FA) and SMS one-time password (OTP), allows users to verify their identities with a code that is sent to them via text message.
This is real mobile number that is associated with a physical sim card. Highly secure services such as Banks, Facebook, LinkedIn will only send a verification sms to a non virtual number.
Absolutely. We can send the verification SMS direct to your email address, or any webhook.
If you are unable to receive SMS verification codes most likely the service you are enabling MFA on does not accept VOIP phone numbers. You will need to request a Clerk non-voip number.
Yes. Most existing internet services such as Google, Apple, and others allow the use of a US based phone number for verification purposes.
Our phone numbers are NEVER recycled and completely unique for each individual customer.
*Chat with us! Talk to a real customer success specialist, respond in less than 90 seconds hours 6:00 am PST - 9:00 pm PST