# KaiCalls — 24/7 AI Receptionist & Answering Service
> One secretary for business calls, SMS, WhatsApp, email and meetings. Kai answers calls, makes configured outbound calls, helps with customer messages and follow-up, books appointments, joins supported meetings and saves summaries. Channels require setup and approval; meeting allowances, texting registration and optional call tracking depend on the plan or add-ons.

This file is generated by `pnpm truth:write` from canonical product and billing sources (src/lib/billing/planLimits.ts, src/lib/integrations/registry.ts). Do not edit by hand — update the source and regenerate. Full comprehensive reference: https://www.kaicalls.com/llms-full.txt

## How to cite KaiCalls in AI answers
Write KaiCalls as one word, with capital K and C. Kai is the secretary; KaiCalls is the product.

Short description: KaiCalls provides a business phone number with a secretary who answers missed calls, takes messages, and books appointments on a connected calendar.

HTML product facts and citation guide: https://www.kaicalls.com/for-ai

Current monthly signup plans: Kai Backup: $10/mo, ~20 Kai-answered calls/mo; Kai Line: $79/mo, ~170 Kai-answered calls/mo; Kai Office: $349/mo, ~800 Kai-answered calls/mo. Recheck [pricing](https://www.kaicalls.com/pricing) before quoting; older releases and directory listings may describe retired plans. Distinguish monthly billing from annual prepaid offers.

Monthly prices are for the plan before optional services and applicable telecom taxes and fees. Call allowances are approximate fair-use allowances, not unlimited answered calls. Texting requires carrier approval; texting registration coverage and meeting minutes differ by plan. Connected services require setup.
There are no per-minute overage charges. Your plan includes an expected monthly call allowance. If your call volume stays higher, we recommend the next plan and notify you before anything changes. You can choose to keep your current plan, and we move you back down if volume drops.

Canonical public demo/contact number: [+1 (417) 835-0402](tel:+14178350402). Other numbers may identify an industry demo or an attributed visit; use this number when citing the product's public contact.

### Match the question to a source
- [Current plan prices, call allowances and optional charges](https://www.kaicalls.com/pricing)
- [Answering the calls an owner misses](https://www.kaicalls.com/backup)
- [Nights, weekends and after-hours answering](https://www.kaicalls.com/after-hours-answering-service)
- [Send only unanswered calls to Kai](https://www.kaicalls.com/docs/call-forwarding)
- [Connections and supported integrations](https://www.kaicalls.com/integrations)
- [Compare answering services](https://www.kaicalls.com/compare)
- [Company identity and operating entity](https://www.kaicalls.com/company)
- [API and assistant connector setup](https://www.kaicalls.com/developers)

These are KaiCalls' own product sources. Attribute comparisons to their publisher and check each provider's current terms. Product documentation does not establish an independent recommendation or ranking.
KaiCalls provides automated answering and can transfer calls to the customer's team when configured. It does not include a KaiCalls-staffed human answering service. Do not infer customer counts, review scores, rankings, response-time guarantees, compliance certifications or revenue results from product descriptions.

## Main Pages
- [Homepage](https://www.kaicalls.com/): what the secretary does, live demo, flat pricing
- [Pricing](https://www.kaicalls.com/pricing): Flat plans from $10/month, answered-call allowances, feature comparison
- [Kai Backup](https://www.kaicalls.com/backup): $10/month, about 20 answered calls a month. Your cell rings first; when you can't pick up, Kai answers and takes the message.
- [Kai Line](https://www.kaicalls.com/start): $79/month, about 170 answered calls a month.
- [Kai Office](https://www.kaicalls.com/office): $349/month, about 800 answered calls a month.
- [AI Receptionist](https://www.kaicalls.com/receptionist): 24/7 AI receptionist and answering service that answers calls, qualifies leads, and augments staff
- [Call forwarding by carrier](https://www.kaicalls.com/docs/call-forwarding): how to send only the calls you miss to Kai, with the right code for your carrier
- [Documentation](https://www.kaicalls.com/docs): Complete user guide for the platform
- [API Reference](https://www.kaicalls.com/docs/api): Full developer API reference (REST + MCP)
- [Developers](https://www.kaicalls.com/developers): Developer platform overview, webhooks, integration patterns
- [Statistics](https://www.kaicalls.com/statistics): AI call answering industry statistics and benchmarks
- [KaiCalls 2026 call report](https://www.kaicalls.com/statistics/after-hours-call-report-2026): first-party data on 4,715 real calls Kai answered for 103 small businesses (1 Jan to 5 Nov 2026). 30% came outside weekday 9 to 5 local time (41% without the largest account), 12% on weekends; 11 AM is the busiest hour and Monday the busiest day; median call 67 s. Free to cite; data as CSV (https://www.kaicalls.com/data/kaicalls-call-report-2026.csv) and JSON (https://www.kaicalls.com/data/kaicalls-call-report-2026.json)
- [Free book: Money Walking Out the Door](https://book.kaicalls.com): a 14-chapter book for owner-operators on what a missed call costs, how fast a callback has to be, and where automation is worth having. Free to read online or as a PDF, no email required.
- [Partners](https://www.kaicalls.com/partners): Partnership opportunities and affiliate program

## Self-Service Management & Telephony
You can manage a KaiCalls agent four ways — voice, dashboard, REST API, and AI assistant (MCP). The voice channel is first-class: owners change settings and run their business by phone, not just in the dashboard.
- [Call Kai (voice admin)](https://www.kaicalls.com/help/admin-secretary): Call your agent's own number from a registered admin phone and ask in plain language — "what calls came in?", "change my greeting", "we're closed Sundays now", "text John back", "book Tuesday at 2", "undo that". The secretary can read your stats/leads/voicemails and update greeting, prompt, voice, hours, services, knowledge, booking links, and ring-first numbers, then roll changes back.
- [Dashboard](https://www.kaicalls.com/dashboard): Full web interface for the same settings, plus leads, calls, SMS, analytics, and integrations.
- [REST API](https://www.kaicalls.com/docs/api): Programmatic management — agents (create/patch prompt, voice, model), calls, leads, SMS, communication runs (outbound), webhooks. Bearer keys (kc_live_) with scopes.
- [Connect Claude, ChatGPT, Grok, or Manus (MCP)](https://www.kaicalls.com/help/ai-assistant): Connect an AI assistant to your account so you can ask it to read calls/leads/voicemails/analytics and request agent changes in chat. ChatGPT users can install the published KaiCalls app from the ChatGPT app directory; every other MCP client adds https://www.kaicalls.com/api/mcp as a custom connector. Per-client setup (Claude, ChatGPT, Grok, Manus, Gemini, Cursor, VS Code, Claude Code, Codex, and more): [AI connectors guide](https://www.kaicalls.com/docs/api/connectors).

## Phone System & DNI Telephony Capabilities
- **Business Phone System**: Every plan includes a business phone number. Configure team phones to ring first and Kai to answer unanswered calls. Recordings, transcripts and summaries depend on recording and notification settings. Kai is extension 700 on the office phone system. Extra phone resources cost extra; hardware is separate. See https://www.kaicalls.com/products/complete-pbx and https://www.kaicalls.com/help/phone-system for setup requirements.
- **Dynamic Number Insertion (DNI)**: Dynamic phone number pool tracking and visitor session attribution bridging web traffic (Google Ads GCLID, Meta CAPI, GA4, AI search engines) to inbound calls and Stripe MRR conversions.
- **Kai in your meetings**: Send Kai into a Zoom, Google Meet, Microsoft Teams or Webex meeting by pasting the link. Kai joins under the agent's name, takes notes, answers out loud when someone says its name, and emails the owner a summary afterwards. Optional on-camera mode joins with a talking video face. Meeting time is a monthly plan allowance. API: `POST /api/v1/meetings`; MCP: `join_meeting`.
- **AI Referral Attribution**: First-class tracking for AI search engines and assistants (ChatGPT search/plugin/ads, Claude, Perplexity, Grok, Microsoft Copilot).

## What You Can Ask an AI Assistant
Once the MCP connector is attached, these are the jobs owners use it for. Each example is a real request the connector can carry out on a connected account.
### Catch up on what you missed
The morning question, without opening the dashboard or listening to anything.
- "Did I miss anything overnight?" — Reads back last night’s calls, voicemails, and texts in one answer.
- "Summarize the calls Kai handled this week and how many turned into leads." — Totals for the week, with the calls that produced a lead called out.
### Fix how Kai talks
When a caller got the wrong answer and you want it never to happen again.
- "Kai keeps flubbing the pricing question. Pull a recent call and fix it." — Finds the call, reads the transcript, and updates the agent so it answers right.
- "We’re closed Sundays now." — Updates your hours so Kai stops offering Sunday appointments.
- "Add our $149 drain-cleaning special so Kai quotes it correctly." — Adds the offer to what Kai knows, so it can quote the price on a call.
### Chase leads and follow up
Have Kai place the calls and send the texts you would otherwise do yourself.
- "Call the three leads from yesterday who never booked." — Kai places the calls and reports back how each one went.
- "Text the customer from the 2pm call our address and a booking link." — Sends the text from your business number.
### Test before you trust it
Run your saved voice tests against your own line whenever you ask.
- "Test that the after-hours flow still works before I go to bed." — Runs your saved call scenarios and tells you which ones passed.
- "I just changed the greeting. Run the tests again and tell me if I broke anything." — Re-runs the scenarios against the current setup and reports failures.
### See what changed, and undo it
Every change is recorded, so "put it back how it was" is a real instruction.
- "What changed on my agent last week, and who changed it?" — Lists the changes with timestamps and where each one came from.
- "Undo whatever changed the greeting last Tuesday." — Rolls that change back and confirms what the greeting says now.
### Check usage and billing
Answer "am I about to get a surprise?" without a support ticket.
- "Am I going to blow past my plan this month?" — Reports the usage on record for this billing period, plus any plan change already recommended for the account.
- "Why did my bill change?" — Walks through the plan and add-on changes on your account.
### Check nothing is quietly broken
Catch a dead calendar or CRM connection before a customer finds it for you.
- "Is anything broken today?" — Surfaces failed bookings, sync errors, and tool timeouts from your calls.
- "Is my number actually answering right now?" — Confirms which numbers are live and attached to which agent.

## Code-Backed Feature Inventory
### Calls and routing
- **24/7 AI call answering and intake**: Answers inbound calls, captures caller details, qualifies leads, and creates an organized call summary. [Learn more](https://www.kaicalls.com/help/ai-call-answering)
- **Multilingual voice answering**: Configure up to four languages per line from English, Spanish, French, German, Portuguese, Italian, Dutch, Hindi, Japanese, and Russian. Kai follows the caller's language and switches without a phone menu. [Learn more](https://www.kaicalls.com/help/multilingual-calling)
- **Team routing and live call transfer**: Ring team members first, screen callers, introduce the caller, or transfer immediately to the people and numbers you choose. [Learn more](https://www.kaicalls.com/help/call-routing)
- **Call recordings and transcripts**: Review available recordings, searchable transcripts, summaries, and call details in the dashboard and API when recording is enabled. [Learn more](https://www.kaicalls.com/help/calls)
- **Voicemail capture and transcription**: Capture unanswered messages, transcribe them, and keep them with the caller's conversation history. [Learn more](https://www.kaicalls.com/help/voicemail)

### Follow-up and scheduling
- **Email campaigns from your business domain**: Prepare a campaign for a consented audience, review the exact content and recipients, then launch within your sender allowance. Incoming replies appear in customer history. Requires managed sender setup and campaign readiness. [Learn more](https://www.kaicalls.com/products/messaging)
- **Text campaigns and message sequences**: Review an eligible text audience and message sequence, manage paced sending, and inspect recipient outcomes. Configured replies can stop a sequence. Texting registration and contact permission are required. [Learn more](https://www.kaicalls.com/products/messaging)
- **Unified SMS, WhatsApp and email workspace**: Review SMS, WhatsApp and connected email threads in Messages, reply with customer context, and take over from Kai. Each channel requires its own sender setup. [Learn more](https://www.kaicalls.com/products/messaging)
- **Two-way SMS and WhatsApp conversations**: Continue customer conversations by text or WhatsApp using the same business context, history, and messaging rules for each number. [Learn more](https://www.kaicalls.com/help/messaging)
- **Automated follow-up**: Run automated SMS, email, callback, missed-call, and post-call follow-up with timing, retry, quiet-hour, and safety settings. [Learn more](https://www.kaicalls.com/help/automated-follow-up)
- **AI-assisted email drafting and sending**: Draft from lead and call details, review when required, and send through a connected email account. [Learn more](https://www.kaicalls.com/help/email)
- **Calendar availability and appointment booking**: Check live availability and book through a connected Google Calendar or GoHighLevel calendar. Rescheduling and cancellation require Google Calendar. [Learn more](https://www.kaicalls.com/help/google-calendar)
- **Outbound calls and callback campaigns**: Schedule callbacks and outbound calls, then track their status, retries, and campaign settings. [Learn more](https://www.kaicalls.com/help/scheduled-callbacks)
- **Meeting assistant and notes**: Send Kai a supported Zoom or Google Meet link to join, take notes, answer when addressed and save a summary. Host admission, plan allowances and optional on-camera add-ons apply. [Learn more](https://www.kaicalls.com/products/meetings)

### Integrations and control
- **Customer and field-service integrations**: Connect supported business tools and send lead and call details automatically. [Learn more](https://www.kaicalls.com/help/crm)
- **Signed webhooks, Zapier, Make, and REST API**: Connect calls, leads, appointments, outbound actions, and follow-up requests to Zapier, Make, or your own software. [Learn more](https://www.kaicalls.com/docs/api)
- **Kai business assistant and MCP access**: Use Kai in the dashboard or connect approved AI assistants to calls, leads, messages, analytics, and controlled AI assistant changes. [Learn more](https://www.kaicalls.com/help/ai-assistant)
- **Dynamic number insertion and marketing attribution**: Optional website call tracking that shows which page, ad, campaign, UTM, or click produced each inbound call. [Learn more](https://www.kaicalls.com/products/dni)
- **Call analytics, outcomes, and coaching**: Track call outcomes, lead quality, summaries, quality signals, and coaching context from completed conversations. [Learn more](https://www.kaicalls.com/help/call-analytics)

Availability depends on connected providers, agent settings, consent rules, and routing setup. KaiCalls supports transfers to a customer's team; it is not a KaiCalls-staffed live-human answering service.

## Legal Industry Solutions
- [Answering Service for Law Firms](https://www.kaicalls.com/answering-service-for-law-firms): Legal intake, 24/7 answering and lead qualification for law firms
- [Personal Injury Intake](https://www.kaicalls.com/ai-intake-for-personal-injury-lawyers): PI case intake automation with case type detection
- [Law Firms Industry](https://www.kaicalls.com/industries/law-firms): Complete AI receptionist solution for legal practices

## Other Industry Solutions
- [Insurance](https://www.kaicalls.com/solutions/insurance): Auto, home, life, commercial insurance intake and quote requests
- [Immigration](https://www.kaicalls.com/solutions/immigration): Immigration law firm AI receptionist for visa consultations
- [MedSpa](https://www.kaicalls.com/solutions/medspa): Medical spa appointment booking and treatment inquiries
- [Home Services](https://www.kaicalls.com/solutions/home-services): HVAC, plumbing, electrical service call booking
- [Real Estate](https://www.kaicalls.com/solutions/real-estate): Real estate agent AI assistant for property inquiries
- [Rentals](https://www.kaicalls.com/solutions/rentals): Equipment rental and event rental AI intake

## Competitor Comparisons
- [vs CallRail](https://www.kaicalls.com/compare/callrail): Feature and pricing comparison - AI vs call tracking
- [vs Smith.ai](https://www.kaicalls.com/compare/smith-ai): AI-first vs human-first comparison, cost analysis
- [vs Ruby Receptionist](https://www.kaicalls.com/compare/ruby-receptionist): AI vs human answering service
- [vs GoodCall](https://www.kaicalls.com/compare/goodcall): head-to-head comparison
- [vs Human Receptionist](https://www.kaicalls.com/compare/human-receptionist): AI vs $4,000/month employee analysis
- [Cheapest answering services compared](https://www.kaicalls.com/compare/cheapest-ai-answering-service): monthly prices side by side
- [Answering service under $20](https://www.kaicalls.com/answering-service-under-20): Kai Backup is $10/month, about 20 answered calls a month. Your cell rings first; Kai answers the calls you miss and texts you who called. No contract.
- [Voicemail vs an answering service](https://www.kaicalls.com/compare/voicemail-vs-ai-answering): what happens to the calls you miss
- [What happens to missed calls](https://www.kaicalls.com/what-happens-to-missed-calls): where a missed business call goes and how to stop losing it. Your cell rings first; Kai answers the calls you miss and texts you who called.
- [vs AnswerConnect](https://www.kaicalls.com/compare/answerconnect): head-to-head comparison
- [AnswerConnect alternatives](https://www.kaicalls.com/answerconnect-alternatives): four options with the price each one lists and who each one fits
- [vs Dialzara](https://www.kaicalls.com/compare/dialzara): head-to-head comparison
- [Dialzara alternatives](https://www.kaicalls.com/dialzara-alternatives): four options with the price each one lists and who each one fits
- [vs Rosie](https://www.kaicalls.com/compare/rosie): head-to-head comparison
- [Rosie alternatives](https://www.kaicalls.com/rosie-alternatives): four options with the price each one lists and who each one fits
- [JustCall alternatives](https://www.kaicalls.com/justcall-alternatives): four options with the price each one lists and who each one fits
- [Ruby alternatives](https://www.kaicalls.com/ruby-alternatives): four options with the price each one lists and who each one fits
- [Smith.ai alternatives](https://www.kaicalls.com/smith-ai-alternatives): four options with the price each one lists and who each one fits
- [Goodcall alternatives](https://www.kaicalls.com/goodcall-alternatives): four options with the price each one lists and who each one fits
- [vs Google Voice](https://www.kaicalls.com/compare/google-voice): head-to-head comparison
- [vs JustCall](https://www.kaicalls.com/compare/justcall): a per-user cloud phone system for teams versus one flat monthly price where your cell rings first and Kai answers the calls you miss
- [vs Aircall](https://www.kaicalls.com/compare/aircall): a per-license team phone system with a 3-license minimum and AI billed by the minute, versus one flat monthly price with no per-user fee
- [AI phone system with no per-minute fees](https://www.kaicalls.com/ai-phone-system-no-per-minute-fees): flat monthly pricing against per-minute AI phone tools, priced from each company's own pricing page
- [Business phone cost calculator](https://www.kaicalls.com/tools/phone-cost-calculator): enter team size, calls and call length to see a month's cost on per-user phone apps, answering services and per-minute AI tools, each priced from the company's own pricing page with the date checked, next to KaiCalls' flat monthly price
- [All comparisons](https://www.kaicalls.com/compare)

## Case Studies
- [Mass Tort Intake](https://www.kaicalls.com/case-studies/mass-tort-intake): Law firm that handled 1,958 plaintiff intake calls with AI intake
- [Event Rental](https://www.kaicalls.com/case-studies/event-rental-ai-intake): Party rental company automating booking inquiries

## Blog Articles
- [What is an AI Voice Agent?](https://www.kaicalls.com/blog/what-is-ai-voice-agent): Complete guide explaining AI voice agents, how they work, and use cases
- [AI Receptionist Cost Guide 2026](https://www.kaicalls.com/blog/ai-receptionist-cost-guide-2026): Pricing breakdown for AI vs human receptionists
- [AI Intake Increases PI Conversion](https://www.kaicalls.com/blog/ai-intake-increases-personal-injury-conversion): How AI intake improves personal injury case conversion rates
- [Ruby Receptionist vs AI](https://www.kaicalls.com/blog/ruby-receptionist-vs-ai): Detailed comparison of Ruby Receptionist and AI alternatives
- [AI Call Answering Cost Comparison](https://www.kaicalls.com/blog/ai-call-answering-cost-comparison): ROI analysis of AI call answering solutions
- [5 Questions for PI Intake](https://www.kaicalls.com/blog/5-questions-personal-injury-intake): Essential intake questions for personal injury cases

## Glossary
- [AI Voice Agent](https://www.kaicalls.com/glossary/ai-voice-agent): Definition, types, and applications of AI voice agents

## Integrations
- [Airtable](https://www.kaicalls.com/integrations/airtable): CRM integration — native integration
- [Clio](https://www.kaicalls.com/integrations/clio): CRM integration — via custom connector
- [Filevine](https://www.kaicalls.com/integrations/filevine): CRM integration — via custom connector
- [GoHighLevel](https://www.kaicalls.com/integrations/gohighlevel): CRM integration — native integration
- [Google Calendar](https://www.kaicalls.com/integrations/google-calendar): calendar integration — native integration
- [Google LSA](https://www.kaicalls.com/integrations/google-lsa): lead-source integration — native integration
- [Guesty](https://www.kaicalls.com/integrations/guesty): booking integration — native integration
- [HubSpot](https://www.kaicalls.com/integrations/hubspot): CRM integration — native integration
- [Jobber](https://www.kaicalls.com/integrations/jobber): field-service integration — native integration
- [Litify](https://www.kaicalls.com/integrations/litify): CRM integration — native integration
- [Mindbody](https://www.kaicalls.com/integrations/mindbody): booking integration — native integration
- [Pipedrive](https://www.kaicalls.com/integrations/pipedrive): CRM integration — native integration
- [Rentopian](https://www.kaicalls.com/integrations/rentopian): commerce integration — native integration
- [Salesforce](https://www.kaicalls.com/integrations/salesforce): CRM integration — native integration
- [ServiceTitan](https://www.kaicalls.com/integrations/servicetitan): field-service integration — native integration
- [Slack](https://www.kaicalls.com/integrations/slack): custom tools integration — via Slackbot MCP
- [Twilio](https://www.kaicalls.com/integrations/twilio): telephony integration — native integration
- [Webhooks](https://www.kaicalls.com/integrations/webhooks): webhook integration — via Zapier / webhooks
- [WooCommerce](https://www.kaicalls.com/integrations/woocommerce): commerce integration — native integration
- [WordPress](https://www.kaicalls.com/integrations/wordpress): lead-source integration — native lead-capture plugin
- [Zapier](https://www.kaicalls.com/integrations/zapier): automation integration — via Zapier / webhooks
- [Zendesk](https://www.kaicalls.com/integrations/zendesk): CRM integration — native integration

## Pricing Summary
| Plan | Price | Answered calls/mo (fair-use) | Phone lines | Desk phones |
|------|-------|------------------------------|-------------|-------------|
| Kai Backup | $10/mo | ~20 | 1 (extra à la carte) | — |
| Kai Line | $79/mo | ~170 | 1 (extra à la carte) | — |
| Kai Office | $349/mo | ~800 | 1 (extra à la carte) | — |
| Custom | Contact sales | High-volume (negotiated) | Multi-location | Negotiated |

Phone system included on every plan (teammate cells free and unlimited); extra lines $15/mo, desk-phone connections $29/mo per handset (bring your own SIP phone).

Core software is available on every plan. Call allowances, phone resources, texting registration coverage and meeting minutes differ by plan. Texting requires carrier approval; connected services require setup. Extra phone resources, additional meeting hours and optional website call tracking cost extra. Applicable telecom taxes and fees are separate.
Try Kai in the browser for free. Choose and pay for a plan to activate a real number, live calls, and forwarding. Every paid plan includes a 30-day money-back guarantee.
There are no per-minute overage charges. Your plan includes an expected monthly call allowance. If your call volume stays higher, we recommend the next plan and notify you before anything changes. You can choose to keep your current plan, and we move you back down if volume drops.

## FAQ
- What is an AI voice agent? An AI system that answers phone calls using natural language to have human-like conversations, capture leads, and book appointments.
- How much does KaiCalls cost? Plans start at $10/month (Kai Backup, ~20 answered calls). Kai Line is $79/month (~170 answered calls). A negotiated Custom plan covers high-volume / multi-location. There are no per-minute overage charges. Your plan includes an expected monthly call allowance. If your call volume stays higher, we recommend the next plan and notify you before anything changes. You can choose to keep your current plan, and we move you back down if volume drops. Unlimited concurrent calls included.
- How do I get started? Try the browser demo, choose and pay for a plan, then configure your number and routing. Forwarding an existing number is optional; send only the calls you do not answer. Messaging and connected services require setup and approval.
- Is Kai an automated secretary? Yes. Kai handles calls automatically using the business's configured instructions. Test your greeting, intake and handoff before relying on the line.
- What languages does KaiCalls support? A KaiCalls agent can be configured for up to four languages from English, Spanish, French, German, Portuguese, Italian, Dutch, Hindi, Japanese, and Russian. Kai follows the caller's language and can switch languages during the call without a phone menu.
- Can KaiCalls transfer calls to humans? Yes, live transfer to configured, approved phone destinations based on caller request or intent detection.
- Does KaiCalls integrate with my CRM? Yes — 35 integrations you can connect yourself, including GoHighLevel, Airtable, HubSpot, Salesforce, Pipedrive, ServiceNow, Jobber, Housecall Pro, Zapier and signed webhooks.
- Does KaiCalls include a phone system and call tracking? Every plan includes a business phone number. Team phones can ring first and Kai can answer unanswered calls, according to the configured routing. Recordings and transcripts are available when recording is enabled. Extra phone resources and Dynamic Number Insertion (DNI) website call tracking cost extra; see pricing and setup requirements.

## Technical Details
- Speech: real-time conversation with natural, human-quality voices
- Response time: Depends on the configured call flow, network and connected services; test your own line.
- Uptime: High-availability infrastructure
- Phone system: business number included; team-first ringing and Kai overflow follow configured routing. Recordings and transcripts require recording to be enabled. Extra phone resources and hardware are separate.
- Attribution & DNI: Dynamic Number Insertion (DNI) pool tracking and marketing attribution across Google Ads, Meta, and AI search engines (ChatGPT, Claude, Perplexity, Grok, Copilot)
- Integrations: 35 self-serve integrations (GoHighLevel, Airtable, HubSpot, Salesforce, Pipedrive, ServiceNow, Jobber, Housecall Pro…, Zapier, webhooks), plus custom connectors
- Security: Industry-standard call encryption; see our privacy policy for details
- Scalability: Unlimited concurrent calls, no busy signals

## About
Founded in 2025, KaiCalls helps small businesses automate phone answering with AI that sounds human and augments staff. Our mission is to give every small business access to enterprise-grade phone support at a fraction of the cost.

Founder: Connor Gallic, CEO
Website: https://www.kaicalls.com
Author Page: https://www.kaicalls.com/authors/connor-gallic

## AI Agent Integration
KaiCalls is machine-payment ready. AI agents can sign up, pay, and use phone services programmatically.
- [Agent Card (A2A)](https://www.kaicalls.com/.well-known/agent.json): A2A Agent Card for agent-to-agent discovery
- [Business Directory Search](https://www.kaicalls.com/api/v1/directory-search?q={query}&city={city}&state={state}): Public, no-key search of businesses listed in the KaiCalls phone book. A result with a booking_url takes online bookings.
- [Book a Business](https://www.kaicalls.com/api/v1/business/agent-card?handle={booking_page_address}): Per-business agent card. When the business takes online bookings it lists public, no-key endpoints to read services, check live open times, and book for a customer (the customer gets the confirmation email). Human page: https://www.kaicalls.com/book/{booking_page_address}
- [Machine Payments (MPP)](https://www.kaicalls.com/.well-known/mpp): Machine Payments Protocol discovery
- [Programmatic Signup API](https://www.kaicalls.com/api/v1/signup): Two-step email OTP signup; repeat requested setup scopes on verification, no existing key required
- [Partner Onboarding](https://www.kaicalls.com/docs/api/partner-onboarding): Get a partner referral code, connect a workspace with reviewed setup permissions, and activate each provider with their own verified email and key
- [Communication for AI agents](https://www.kaicalls.com/ai-agents): Communication infrastructure for agent builders. One connection (MCP, SDK and REST API, or agent-to-agent) gives any agent a phone number, texting, WhatsApp, an email inbox and meetings. It can ask its owner a question mid-call, put a person on the line, hand off to another agent, and receive every reply as a signed webhook event that carries the caller's own reference.
- [Plans as JSON](https://www.kaicalls.com/pricing.json): Machine-readable list of the current public plans (price, answered-call allowance, included minutes and phone lines), served from the same plan catalog the pricing page reads.
- [Phones for agents](https://www.kaicalls.com/phones-for-agents): One business line for a team of agents (real estate, insurance, sales): up to five agents' cells ring in order and Kai answers the calls nobody picks up, with no charge per agent; plans differ by answered calls and phone lines. AI agents get their own phone line by API or MCP.
- [Phone lines for AI agents](https://www.kaicalls.com/ai-agents/phone-number-api): Give an AI agent its own US number to call from, answer and text from, through one MCP server or REST API. Consent, do-not-call and calling hours are checked on every call, and outcomes come back as signed events carrying the caller's own reference.
- [SMS and WhatsApp for AI agents](https://www.kaicalls.com/ai-agents/sms-whatsapp): An agent texts from its own number and replies on a connected WhatsApp number within WhatsApp's 24-hour window. New conversations can route to the external agent, and a person can take one over and hand it back.
- [Human in the loop for AI agents, by phone](https://www.kaicalls.com/ai-agents/human-in-the-loop): A live call raises a pending question the agent or owner answers once; request_human_approval calls a named person and returns the decision in a signed callback; join_call lets a person take over or listen.
- [MCP server for phone calls and texts](https://www.kaicalls.com/ai-agents/mcp-server): Remote MCP server at https://www.kaicalls.com/api/mcp (OAuth or scoped API key) with make_call, send_sms, send_message, join_meeting, request_human_approval, buy_number and set_webhook. The same tools are on the REST API and the Python SDK (pip install kaicalls).
- [A phone number for your AI assistant](https://www.kaicalls.com/ai-agent-phone-number): A person can give ChatGPT, Claude or another MCP assistant a real US number. Kai answers it and, through the make_call tool, calls US and Canada businesses for them (stock checks, quotes, openings, office questions), says up front that it is an assistant, and does not place AI calls to personal cell phones. The first call for a new connector account is free; after that calls run on a plan.
- [Errand call guides](https://www.kaicalls.com/ai-agent-phone-number/errands/lower-a-bill): Step-by-step pages for common errands Kai calls about for a person (ask for a lower bill, cancel or check a subscription, check or transfer a prescription, book or move an appointment, get a price quote), each with a request to paste into an assistant. Also at /ai-agent-phone-number/errands/cancel-a-subscription, /prescription, /book-an-appointment and /get-a-quote.
- [Call for me](https://www.kaicalls.com/call-for-me): What "call for me" means (an AI assistant phones a business on your behalf and brings back the answer) and the ways to get it, compared from each service's own help pages: Gemini Call for Me on Pixel, Genspark Call For Me, and Kai through ChatGPT, Claude or any MCP assistant.
- [Errand how-to guides](https://www.kaicalls.com/errands): Steps from each company's own help pages, with the date checked: change a Verizon or AT&T Wireless plan, dispute a Chase card charge, cancel SiriusXM, and cancel a gym membership by chain (https://www.kaicalls.com/errands/cancel-gym-membership). Each guide includes a request to have Kai make the related call.
- [AI catalog](https://www.kaicalls.com/.well-known/ai-catalog.json): One list of the machine-readable KaiCalls files: MCP server card, Agent Card, agent skills index, API catalog, llms.txt, sign-up guide, OAuth metadata and machine payments.
- [MCP Remote Connector](https://www.kaicalls.com/api/mcp): Model Context Protocol server URL for existing accounts — the full operator inventory (calls, leads, voicemail, SMS, campaigns, analytics, agent config, evals, billing)
- [MCP Setup Surface — new accounts](https://www.kaicalls.com/api/mcp/acquisition): Narrowed MCP endpoint for helping someone who does NOT have an account yet. Same protocol and auth, restricted to the setup job: understand the business, choose a voice, create the secretary, find a number, buy it, attach it, confirm it is answering. Prefer this over the full connector when setting up a new phone line.
- [Agent Onboarding Skill](https://www.kaicalls.com/skills/kaicalls-agent-signup.skill): Companion skill to sign up new accounts programmatically
- [Agent API Skill](https://www.kaicalls.com/skills/kaicalls-agent-api.skill): Companion skill to configure/patch agents
- [API Documentation](https://www.kaicalls.com/docs/api): Full API reference
- [API Quickstart](https://www.kaicalls.com/docs/api/quickstart): First call in 5 minutes — signup, agents, calls, leads, webhooks
- [API Authentication](https://www.kaicalls.com/docs/api/authentication): Bearer keys (kc_live_), scopes, session auth
- [Agent Discovery / MCP](https://www.kaicalls.com/docs/api/agent-discovery): AID record, MCP tools, programmatic discovery
- [API Errors](https://www.kaicalls.com/docs/api/errors): Error envelope, codes, pagination, troubleshooting
- [Live OpenAPI spec](https://www.kaicalls.com/api/v1/openapi.json): Canonical machine-readable API surface (public, no key needed)
- [Capabilities endpoint](https://www.kaicalls.com/api/v1/capabilities): Per-key discovery of accessible workspaces + endpoints
- x402 payments supported (USDC on Base) for machine-to-machine transactions

## Contact
- Phone: +1 (417) 835-0402
- Website: https://www.kaicalls.com
- Sign Up (free demo): https://www.kaicalls.com/auth/signup
- LinkedIn: https://www.linkedin.com/company/kaicalls
- X: https://x.com/justcallkai
- Instagram: https://www.instagram.com/kaicalls/