About

Built by a small team for the
small businesses tired of missing calls.

Human Add AI was started in 2025 to give small service businesses the same 24/7 phone coverage that enterprise call centers take for granted. The team builds each AI voice agent by hand for the specific vertical (HVAC, plumbing, dental, legal) so the conversation sounds like a senior receptionist, not a chatbot. The platform powers thousands of conversations per month across fifty US metros.

Human Add AI started in 2023 with a simple observation: most small businesses lose revenue not because their service is bad, but because the phone rings while everyone is already busy serving customers. We built a 24/7 AI voice receptionist that answers, qualifies, and books , on the first ring, every ring.

2023
Founded
13
Industries served
24/7
Always on
4.9★
From 47 owners

Meet the founder

Brandon, Founder of Human Add AI

Brandon

Founder · Human Add AI

I started Human Add AI because I watched too many small businesses lose revenue from missed calls , not because the work wasn’t there, but because the people doing the work couldn’t pick up the phone.

We build on Retell AI’s low-latency voice infrastructure and layer on a custom-trained knowledge base for each business , their services, their pricing, their scheduling rules, their tone. The AI sounds human, handles unlimited concurrent calls, and books appointments straight into the customer’s CRM. No per-minute fees. No contracts. Live in 48 hours.

“If your phone rings 100 times today and you only answer 70 of them, we’re the cheapest way to capture the other 30.”

The story

In 2023 we started building voice AI agents one customer at a time , a dental practice that needed appointment rescheduling without a front desk on weekends, an HVAC company drowning in after-hours emergency calls, a plaintiff law firm whose paralegals were taking intake calls instead of working cases.

Each one taught us the same lesson: the AI has to know the business better than a temp would after a week of shadowing. Generic call scripts and one-size FAQ bots fail the moment a real customer asks something specific. So we built a deeper customization layer , an AI that scrapes the customer’s website, ingests their pricing and scheduling rules, and trains on their actual voice and brand , and wrapped it in a 5-minute self-serve setup.

Today Human Add AI runs in 13 industries across the United States. Our customers include solo trades, multi-location practices, and a few enterprise deployments where the AI handles thousands of calls a day. We ship pricing, the comparison page, and the demo number publicly because we believe small business owners can decide on their own whether the product fits.

What we believe

Transparent pricing.

Pricing is on the website. No “contact us for a quote.” $497/$997/$1,997 with a $10 trial activation. If you can read the number you can decide whether the product fits.

No contracts.

Month-to-month. If we’re not driving more bookings than we cost, you cancel. We don’t lock anyone in.

Transfer to human.

When the AI hits its knowledge edge, it transfers , not pretends. The fastest way to lose a customer is to fake an answer.

Real ownership.

Each customer gets a dedicated phone number, full call recordings, transcripts, and lead data. Your data, exportable, anytime.

Reach us

The fastest way to evaluate Human Add AI is to call our demo line and hear the AI handle your call yourself, or start the 7-day trial and let it run against real calls into your business.

Demo line

(617) 812-5251

Email

support@humanaddai.com

Headquartered

Boston, MA · United States

Hear it in action.

A 90-second demo call beats any pitch deck. Pick a path:

The honest pricing breakdown for operators

Human Add AI charges $497, $997, or $1,997 per month depending on the volume tier, with outbound calling metered at fourteen cents per minute on top of the Professional and Enterprise plans. There is no setup fee, no annual contract, no per-seat charge, no per-lead charge, and no per-call charge on inbound. The platform is intentionally priced to be a flat monthly line item that an operator can compare directly against the cost of a virtual receptionist service or the salary of a part-time in-house front desk.

The Starter tier is the right entry point for most operators. It covers a single location, up to 250 inbound calls per month, and the full conversation engine. The 250-call cap maps to a typical service business doing roughly 50 to 60 inbound calls per week. Operators expecting much higher volume should price the Professional tier, which raises the cap to 750 inbound calls per month and unlocks the multi-location routing and the CRM-deep-integration matrix.

Professional at $997 monthly is also the tier where after-hours emergency escalation routing becomes standard, where the CRM integration set covers Jobber, Housecall Pro, ServiceTitan, FieldEdge, mHelpDesk, Workiz, Salesforce, HubSpot, Pipedrive, Clio Manage, Lawmatics, MyCase, PracticePanther, Dentrix Ascend, Open Dental, Eaglesoft, Curve Dental, ServiceM8, RazorSync, and twenty other vertical-specific systems, and where the SLA-backed response time on agent tuning tightens.

Enterprise at $1,997 monthly is for operators who want the volume cap removed entirely, the dedicated agent-tuning contact, the white-label phone numbers, the on-call dispatcher priority routing, and the outbound module. The outbound module unlocks four use cases at the same fourteen-cents-per-minute rate: missed-call callback (the highest-ROI use), appointment reminders (24 hours before the booked time), post-service review collection, and lead nurture for prospects who asked for information but did not book on the first call.

How setup works (the 48-hour timeline)

Setup happens in three steps and finishes inside two business days. Step one is the ten-minute onboarding form. You enter your business name, service area, hours of operation, average ticket size, the questions a senior receptionist would ask to qualify a lead, your booking calendar URL (Cal.com, Google Calendar, Calendly, Acuity, or anything that accepts a public booking link), and the names plus phone numbers of the people who should get SMS alerts when a real lead comes in.

Step two is the build. A real human on the Human Add AI team writes your custom AI receptionist using your onboarding answers as the source of truth, runs it through the demo line three times to listen for awkward phrasing or wrong answers, tunes the voice to match the tone you want (warm and friendly, calm and professional, or fast and efficient), and ships you a recorded sample of three test conversations for sign-off. Most builds finish inside 24 hours of the onboarding form being submitted.

Step three is the forwarding switch. Once you approve the recorded samples, the team gives you a new phone number plus carrier-specific instructions for forwarding your existing business line. The help center has step-by-step guides for Verizon, AT and T, T-Mobile, Spectrum, Comcast, RingCentral, OpenPhone, Grasshopper, Vonage, 8x8, and Dialpad. Forwarding usually takes under five minutes. The moment you confirm the forward is active, every call your business receives is answered in two rings by your custom AI receptionist.

The first week after launch the team listens to a random sample of real calls every morning, flags any awkward moments, and tunes the agent in place. By the end of week one, the agent sounds indistinguishable from a senior in-house receptionist, every booked appointment lands on your calendar with the right details, and your phone gets an SMS for every qualified lead within seconds of the caller hanging up.

Common questions from service business operators

What does the caller actually hear when they dial my line?

The caller hears a custom greeting in the voice you picked during onboarding (warm, professional, or fast), followed by the agent asking how it can help. The conversation flows naturally, not as a menu tree. The agent introduces itself as part of your team on Starter and Professional plans, and uses your business name as the caller-facing identity on the Enterprise white-label tier. There is no holding music, no "press 1 for sales", and no robotic cadence.

How does the booking calendar integration handle conflicts?

The agent reads live availability against your calendar in real time, which means it never offers a slot that is already taken. If the calendar update happens between the moment the agent reads availability and the moment it confirms the booking (the rare race condition), the platform's conflict handler reverts the booking, texts the operator with both calls, and lets the operator decide which one keeps the slot. In practice this happens roughly once per ten thousand bookings.

What integrations exist for sending the lead summary to my CRM?

Native integrations cover Jobber, Housecall Pro, ServiceTitan, FieldEdge, mHelpDesk, Workiz, RazorSync, ServiceM8 in the field-service world, Salesforce, HubSpot, Pipedrive, Zoho, Close, Copper in the horizontal CRM world, Clio Manage, Lawmatics, Lawyaw, MyCase, Practice Panther, Smokeball in legal, Dentrix Ascend, Open Dental, Eaglesoft, Curve Dental in dental, and twenty other vertical-specific systems. Webhook handoffs cover everything else.

How does the platform handle emergency calls?

Emergency triage is configured during onboarding. The agent recognizes emergency signals in the caller's wording (specific keywords for the vertical, urgency tone, and explicit "this is an emergency" statements), routes the call directly to the on-call dispatcher number, and sends a high-priority SMS in parallel so the dispatcher can see the lead even if they miss the call. The emergency routing happens within the same call (no callback delay), which is critical for service business operators where the first business to answer wins the job.

What does the dashboard show?

The dashboard surfaces every inbound call (with searchable transcripts and recorded MP3), every booking, every SMS lead alert, the recovered-revenue math against your reported average ticket size, the conversion rate from call to booked appointment, the agent's confidence score per call, and the weekly summary email metrics. Operators on Professional and Enterprise also see the multi-location split and the outbound-call meter.

What is the SLA on agent tuning if something needs to change?

Standard tuning requests (script edits, new intake questions, calendar rule changes) are turned around inside 24 business hours on Starter, inside 8 business hours on Professional, and same-business-day on Enterprise. Operators can also self-serve most edits through the dashboard's knowledge base section, which propagates to the live agent within minutes.

How do I know it is actually working?

The weekly summary email shows the count of inbound calls, the count of bookings, the count of SMS lead alerts, the count of qualified leads texted to the dispatcher, and the recovered-revenue math based on the average ticket size reported during onboarding. The dashboard also has a "before / after" comparison view that runs against historical voicemail patterns if the operator imports them, so the lift is visible in dollar terms not just call counts.

Can I try it before committing?

Yes. The public demo line at (617) 812-5251 runs the production agent for a generic service business. Call from any phone and run a real scenario (an actual customer question, an actual scheduling constraint, an actual edge case). The agent will answer, qualify, and offer a real booking slot. The demo gives a faithful preview of what your own customers would experience. No signup, no form, no email collection on the demo path.

The operator-side decision math in 2026

Service-business operators making purchase decisions on phone infrastructure in 2026 typically run the math three ways before committing. Way one: monthly recurring cost compared to monthly recovered missed-call revenue, where the platform earns its keep inside the first week for any business handling more than about 100 inbound calls per month. Way two: total cost of ownership over a 12-month horizon including outbound usage, integration setup time, and the operator time spent on phone qualification that the platform now handles automatically. Way three: opportunity cost of not installing the platform, calculated as missed-call revenue lost during the months of delay while the operator evaluates options.

All three calculations land in the same place for almost every service-business profile: a single-location operator with 100 to 1,500 monthly calls and an average ticket size of $250 or more breaks even on the platform inside the first week and runs net positive for every week after that. The exception is a business with very low call volume (under 50 calls per month) or very low ticket size (under $100 per booked job), where the recovered-revenue math gets thinner.

For every other profile, the answer the math gives is to launch fast and let the platform compound. The 48-hour launch timeline means the operator can be live by the end of the week and start recovering missed-call revenue immediately. Every week of delay costs real money in lost bookings, and the operator can always cancel later if the platform underperforms the recovered-revenue model.