Clerk - SMS for Slack

Customers, contractors, and partners never have to install an app to message your team. It’s perfect for keeping track of customer support, operations, and sales messages. Confirm appointments, ask for reviews, offer promotions, the possibilities are endless.


Easy, Secure, and Reliable Business Text Messaging

Text messaging has a 98% open rate and over a 50% reply rate. Clerk allows you to engage with leads more efficiently and reduce the time it takes to qualify them.

Clerk Chat - SMS for Slack | Product Hunt Embed
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Start a new business text conversation from Slack

Using Clerk command to send business text messages to any of your contacts. It's simple for people to text your existing business phone number. Or get a new phone number. Your team will see the customer’s messages in Slack and can reply. And since it’s Slack, all messages are searchable for future reference.

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Read and reply to SMS on any mobile phone

Use your desktop computer, iPad or a cellphone through the Slack app and get notifications instantaneously when someone texts your company. Reach your customers faster: 98% of text messages are read within the first few minutes that they are received.

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Industries that love Clerk

Start texting your customers today. Keep your company’s text messages organized and secure with Clerk.


Reach your customers faster and grow your customer base more efficiently. Close sales by answering customer questions quickly.

Law Firms

Attorneys, paralegals, and assistants can schedule and confirm legal appointments, submit document requests, and confirm court dates.

Insurance Agencies

Send text messages to reach your team on the mobile devices that they are already using.

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Real Estate

Connect with prospects and close more deals. Create a better customer experience.

Support Teams

Increase efficiency of your support teams and handle multiple customer issues simultaneously all in Slack.

Medical Offices

Send SMS to confirm appointments, change treatments, or ask questions. SMS enable your business phone number, while keeping the existing voice service intact.

Pricing plans

Choose the best plan for your business. Try for free, no credit card required.

per month
per month
Features Professional Starter Free
SMS Per Month 750 250 10
Address Book
Import Contacts
Local Area Code
Group Messaging
API Access / Twilio Integration
SMS Packs - $0.04/sms
Access To Add-ons

*Prices reflect US/Canada ONLY. International pricing varies.

Ready to get the conversations started?

Add-ons you will love

Make communication fun and simple. Incorporate technology into your business.

Import Your Number

Give your customers the option to text directly to your business landline, VoIP, or toll-free number. You'll still be able to receive calls as usual.

Multiple Numbers

Want to give customers the ability to text several numbers? Maybe you need a different number for customer support, sales or appointmens.

Toll Free Numbers

1-800 numbers are also supported in Clerk! Let your customers text your global support system, right in Slack.

Call Forwarding

Never miss a call with Clerk - push all incoming calls to a number of your choice.


The essential classic: let your customers leave you a voicemail right in Slack. The message is uploaded as a .mp3 so you can listen right away.

Call Transcription

Let customers leave you a message and have Clerk automagically transcribe everything into text, right in Slack.

2 Factor Authentication

Work in IT, banking or consulting and need to share 2FA with members of your team on behalf of clients? We can enable this work flow instantly.


Don't leave your clients hanging. Setup automatic responses for when your business is closed or for the first time a client texts you to welcome them.

Helpful answers

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.

Yes. Clerk allows to send and receive txt messages coming from your phone number. Just let us know what number or area code you would like to use and we will set it up.

Yes. Clerk allows you to have a unique phone number in every Slack channel.

Absolutely. Please reach out to and we will get back to you asap.

Yes. Our group texting service lets you reach large groups of people with a single text. The group size can be small, medium, large, or huge. It all depends on the number of contacts in your addressbook.

Use Clerk the same way you would use your mobile phone. Both emoji and image messages are suported.

Yes. Clerk includes a free 10 message trial.