KaiCalls

Your business. With a secretary.

Keep working.
Kai takes the call.

When you can’t pick up, Kai answers, takes the details and saves the conversation. Bring your calls, messages, email campaigns and meetings together, so following through is easier when you get back to your customers.

Live demo: 1 (417) 835-0402

$2 for your first week, then from $10/mo. Cancel anytime. See plans

No card for your browser preview. A paid plan is required for a real number and live phone service. Keep your existing number with optional call forwarding.

A plumber on his back under a sink, both hands on a wrench.
Kai's summary from the KaiCalls app: Water heater is leaking in the garage. Wants someone out today and asked for a call back before 3pm. Caller asked to be called back.

Trusted by teams using KaiCalls

The whole customer relationship. With Kai.

Bring in business.
Get on with yours.

Campaigns to reach customers. Calls and messages to keep them moving. A secretary to help with the work in between.

Watch the services come together · 35 seconds

Sound like your day?

All the tools.
Still all on you.

  • Send the campaign.
  • Answer the phone. Call them back.
  • Find the email. Reply to the text.
  • Update the contact. Book the time.
  • Take the notes. Brief the team.
With KaiCalls

The services together.
Kai on the follow-through.

Reach out, answer, call back and follow up—with customer details close at hand. You set the direction. Kai helps carry it forward.

Business phoneEmail campaignsText campaignsUnified messagesCustomer historyConnected bookingMeeting notesOwner briefings

Less on your plate.
Here’s what that looks like.

Pick the work you want help with.

“We have openings. I should email our customers.”

Put your customer list to work.

Run full email and text campaigns. Choose who to reach, prepare your message and review it before launch. Give past customers a reason to get in touch again.

You choose the audience and approve the campaign.

Explore email & text campaigns
Email campaign Ready for review
KaiCalls campaign review showing the sender, message, audience and draft receipt for a sample email campaign
Actual campaign review screen. Example business and audience.

Email campaigns · SMS campaigns · Sending domain · Reply inbox

Start with the work that’s piling up.

Keep your number. Connect your mailbox. Add the services you need.

Put Kai to work

First, see a call handled.

A caller becomes a saved contact, a clear summary and a next step. Watch the actual product, from picking up to following through.

Watch the full storyMore videos on YouTube
Ken Rent / Starrs Party · Customer recording

In their own words

More time for the business.

“It gives us more time to work on the business.”

Ken Rent / Starrs Party

Watch the customer story
Ken Rent / Starr’s PartyPete Gallic, owner · tent and party rental, New Jersey

Case study

How a tent and party rental shop got $443K in orders from calls the crew couldn’t answer

in orders from Kai callers
$443K
orders
269
first-time customers
129
“When we implemented KaiCalls, all of a sudden, customers were calling in and actually talking to a person.”Pete Gallic
“It’s replaced a full-time employee for us at a cost of maybe 20% of that.”Pete Gallic

Pete recorded this on his phone. The cuts here are edited from that one recording. The call and cost numbers he mentions are his own estimates. The order counts on this page are our own count from Ken Rent’s order data.

Read the case study

Start with the calls you miss.
Keep the number they know.

Follow the call

However customers reach you, Kai picks up and puts it where you work.

Customers reach you on

  • Phone calls
  • Texts
  • WhatsApp
  • Web chat
  • Email

Leads come in from

  • Meta lead adsSoon
  • Thumbtack
  • Google LSA
  • Web forms

AI agents

  • ChatGPT
  • Claude
  • A2A
KaiYour secretary
  • Answers as your business
  • Books the appointment
  • Texts back
  • Makes calls for you
  • Sends a payment link
  • Transfers the call to you
  • Hands off every detail

Lands where you work

  • Your phone
  • Your inbox
  • Dashboard
  • Your AI agents
  • Google Calendar
  • Jobber
  • Housecall Pro
  • GoHighLevel
  • HubSpot
  • Rentopian
  • Zapier
  • Slack
+ 24 more integrations

Results land as a text, an email, a reply or a record in the tools you connect.

Examples

  • Missed call · booked Tue 9am in Google Calendar
  • ChatGPT · “who called today?” answered from your line
  • Web form · Kai called the lead back, booked in Google Calendar
  • Web chat · quote request texted to you
  • Claude · Kai calls the supplier for you, transcript back
  • Google LSA message · Kai replied, lead in GoHighLevel
  • After-hours call · payment link texted to the caller
  • Thumbtack lead · instant reply sent, lead in your dashboard
  • Another business’s agent asks over A2A · Kai answers from your business info
  • Missed call · job request sent to Jobber
  • Text from a customer · new lead sent through Zapier
  • Urgent call · transferred to your cell
  • ChatGPT · text sent to a customer from your number
  • WhatsApp message · Kai replied, thread in Messages
  • Email inquiry · reply drafted for your review
  • Rental call · quote drafted in Rentopian
The results shown are examples. Each message channel and integration needs its own setup.
  1. 01Your phones ring first

    Your cell and your team’s phones ring together on the number you already have. Press 1 on a cell to take it. Forwarding from an old number? Forward only the calls you don’t pick up, so your own phone keeps ringing.

  2. 02Kai answers what you miss

    After the time you set, Kai answers as your business and gets the need, urgency, timing and contact details. Texts, chats and messages get the same secretary.

  3. 03You get the text

    A text with what they wanted and the recording, for the calls Kai took and the ones your team answered. The details also land in the tools you connect, and your AI agents can read them.

Your number is one place to start. Connect email, add campaigns and bring Kai into your meetings when you’re ready.

Introducing the first agentic phone number.

Turn the sound on.

The KaiCalls launch film. Lines from the film: ditch the voicemail; just call Kai; dumb to smart, we made it cool again.

Ditch thevoicemail.

Nobody leaves them. Nobody listens.

Just callKai.

Your phone rings. If you can’t get it, Kai does.

Dumb to smart.Cool again.

We made your business phone cool again.

Nobody leaves voicemails anymore.

So Kai answers instead, day or night, and writes up every call for you.

30% of the 4,715 calls Kai answered this year came when the office was closed. Read the 2026 call report →

A clock runs from 5 PM to 8 AM. After closing time four calls come in, at 6:12 PM, 8:40 PM, 11:05 PM and 6:30 AM, and Kai answers each one. In the morning view all four calls are listed as answered, with what each caller needed.

Calls Kai answered in the last year
—
Spent on the phone with callers
—
Average call, start to finish
—

Live from real calls, updated just now. Test calls and calls we placed ourselves aren't counted.

Hear Kai answer a call for a business like yours.

Choose a business similar to yours to see what Kai handles. Then call the demo line from your phone to hear the greeting, ask a question, and try leaving a callback request.

HVAC

Kai for HVAC

Peak-season overflow, no-heat emergencies, maintenance scheduling

Call the demo line · 1 (802) 232-8873

One demo line for every industry. Ask a question or leave a test message.

Kai subtly assisting an HVAC professional beside a rooftop condenser

Live in minutes.
Keep your number.

Rather talk it through first? Call Kai now and ask how setup works.

  1. Tell Kai about your business.

    Create your account. Add your website if you like, and Kai reads your services and hours from it.

  2. Get your new number.

    We pick a number for you. Want a different area code? Swap it. Your first week is $2.

  3. Call it. Then forward your line.

    Hear Kai answer on your new number first. Then forward only the calls you don’t pick up: your phone rings first, Kai takes the rest. Your number and your carrier stay the same.

Step-by-step forwarding for

Your line runs on

Phone networks
TwilioTelnyx
Speech and language
OpenAIAnthropicElevenLabsDeepgramAssemblyAI

Choose your starting point

Our pick for most businesses

Kai Line$79 a month

Your business line, with a secretary. When you can’t pick up, Kai answers and sends you the details.

Billing frequency

Same core software on every plan. Choose monthly or annual.

Includes ~170 Kai-answered calls/mo.

$2 for your first week, then $79/mo. Cancel anytime.

Introductory offer for eligible first-time subscribers; cannot be combined with another discount. Secure checkout confirms your total.

Every paid plan includes a 30-day money-back guarantee.

Before you activate

Can I keep my current business number?

Yes. You can forward calls from your existing number to Kai, or give customers your new Kai number. Forwarding is optional and depends on your carrier. Paying does not change your existing number or turn forwarding on.

What happens after I pay?

Payment starts your plan. Finish number setup and any required verification, then make a private test call before connecting customer calls. Number availability and verification still apply. Texting needs separate carrier approval.

What if Kai is not right for my business?

Every paid plan includes a 30-day money-back guarantee. You can cancel your subscription in billing. Turning off call forwarding with your carrier is a separate step.

This is your business phone plan. Email campaigns, messaging and meetings have their own setup and allowances. See what your plan includes before choosing the services you need.

Why it costs less than an answering service

No call center

There's no room full of operators to pay for. That cost never lands on your bill.

Kai answers every call

Day or night, Kai picks up, takes the details, and gets them to you.

No per-minute charges

Kai Line is $79 a month, flat. A long call costs the same as a short one.

Need a different size? Kai Backup is $10/mo and Kai Office is $349/mo. See every plan

You stay in charge

What Kai won't do without you

Bring calls, campaigns and follow-up together without handing over every decision. You set Kai’s instructions and review the work that needs your approval.

Visit the trust center
  • Your number stays yours

    Kai only gets the calls you forward. Turn forwarding off with your carrier any time.

  • You approve the campaign

    Review the exact sender, message, audience and limits before an email campaign can launch.

  • Prices and promises stay with you

    Set what Kai can say about pricing, advice and commitments. Anything else waits for you.

  • Test before customers hear Kai

    Call Kai on your new number and check the greeting and details before you forward a line.

Work with Kai from your AI assistant.

Install the published KaiCalls app in ChatGPT, or connect Claude and other MCP-compatible assistants. Then ask about recent calls, listen to voicemails, work with leads, or trigger follow-ups right from your chat.

ChatGPT, Claude, Meta Muse, Codex, Cursor, GitHub Copilot, and Gemini are trademarks of their respective owners. Except for the published, OpenAI-approved KaiCalls app in ChatGPT, compatibility does not imply endorsement or partnership.

Connects with the software you already run.

Keep the mailbox you use. Connect a supported calendar for booking and choose how customer details reach your CRM. Bring Kai into the tools your business already runs.

Google Calendar
Live appointment booking
Zapier
Custom app automations
HubSpot
Lead sync & transcripts
Gmail
Personal email & follow-up
Airtable
Caller database export
Calendly
Booking link sent by text
Make
Custom business workflows
Slack
Real-time office alerts

Guides people ask us about

Compare services, learn about legal intake, or see how calls connect to your existing tools.

Before you get started

Give your business a secretary.

Hear how Kai handles a customer question. When you are ready, choose a phone plan and put him to work for your business.

Free browser demo · payment required to activate live phone service. Then $10/mo, plus about $4 in regulatory fees and taxes, on their own line. Manage or cancel your subscription in billing.Every paid plan includes a 30-day money-back guarantee.

Kai answers calls 24/7, every day of the year. Request your free preview today