Websites · Online booking · AI assistants

Stop losing bookingsafter hours.

Websites, online booking and AI assistants for small businesses. Live in 7 days.

The demo is built for your business before you pay anything.

Late? Every week of delay adds a free month of care.

Built with

  • Claude
  • Mercado Pago
  • Cloudflare
  • Gemini
  • Google Calendar
  • Telegram
  • Resend
  • Vercel
  • Android

How much are you losing?

Every unanswered call or late reply is a client who books somewhere else. Put in your numbers.

8
USD

You could be losing about

USD 1,560

per month

Over a year USD 18,720

Get a free demo

Your numbers stay in your browser.

Selected work

Vitalquimia website home page in a desktop browser
Vitalquimia home page on a phone
Real client

Vitalquimia

Dermatology & aesthetics clinic · Buenos Aires

Patients choose a treatment and a time, pay the deposit with Mercado Pago and get their confirmation by email. An AI assistant answers questions about treatments, and bookings can be checked or cancelled without creating an account.

  • Online booking
  • Deposits via Mercado Pago
  • AI assistant
Stock app on a phone: stock list with low-stock alerts
Stock app on a phone: the day’s close, with sales by payment method
Real client

Retail store · stock & sales app

Small business · Argentina

Screenshots with sample data: the real catalog is the client's.

Replaced the paper notebook: products, prices, daily sales and stock in one Android app that works offline.

  • Android
  • Works offline
  • Daily sales
Jarvis OS control panel design, with system status and task counters
Own product

Jarvis OS

My own AI agent system

Runs 24/7: finds potential clients, checks every fact before writing, drafts replies and asks me on Telegram before anything irreversible.

  • AI agents
  • Telegram
  • Human approval
In development

Creator AI app

For Instagram & YouTube creators

Connects your accounts, finds what works in your videos and helps with scripts, photos and video.

  • Instagram
  • YouTube
  • AI

What I build

Prices for USA / Canada (USD)

Order by Nov 30 → live before Dec 15

  • 7-Day Website

    Live in 1 week

    A fast, modern site that turns visitors into messages and bookings. Built for phones first.

    fromUSD 400

  • Clients pick a time and pay a deposit online. Automatic reminders cut no-shows.

    fromUSD 700

  • Missed-Call Rescue

    Answers 24/7

    When you can't pick up, an automatic text or an AI assistant answers the question and books the appointment.

    fromUSD 500

  • AI WhatsApp assistant

    WhatsApp and email

    Answers your customers on WhatsApp or email at any hour, using your business info, and hands the chat to a person when one is needed.

    fromUSD 650

  • Mobile apps

    Android and iPhone

    Custom apps for your business or your customers: orders, stock, bookings or loyalty. Like the stock and sales app in my work.

    fromUSD 900

  • Custom AI agents

    With your approval

    A digital employee that handles the repetitive tasks on its own (finding data, replying, entering orders) and asks you before anything important.

    fromUSD 1,200

  • Custom automations & internal apps

    Scoped with you

    Stock, sales, reports, the spreadsheet you fight every day, turned into a tool that works for you.

    Quoted per project

  • Meta and Google ads

    Monthly

    I set up and optimize your Instagram, Facebook and Google campaigns, with clear reports. You approve every budget change.

    fromUSD 300/mo

  • Care Plan

    Monthly

    Hosting, changes, backups and support. You never touch anything technical.

    fromUSD 50/mo

  • Need something else?

    Just ask

    If what you need isn't on the list, I can probably build it too. Tell me what you're after.

    Ask about it

Final price depends on what you need. You get a fixed quote before anything starts.

On-time guarantee

Every project has a delivery date in writing: 7 days, 14 at most. If I'm late, every week of delay adds a free month of care.

Included with every project

  • Google Business profile set up or improved
  • A QR code that invites every client to leave a Google review

I take 8 projects per month.

How it works

  1. 01

    Free demo

    Tell me about your business. I build a preview of your site or system, free.

  2. 02

    You approve

    We adjust it until it's what you want. No commitment until you say yes.

  3. 03

    50% deposit, we build

    Half to start, half on delivery. Fixed price, fixed date.

  4. 04

    Launch + care plan

    Your system goes live and I keep it running, updated and backed up.

Recommend Onykrom and you both win

Know a business that needs this? When they hire with your code, they get 10% off plus a free month of care. So do you.

Ask me for your code by email or Instagram.

Who's behind it

I'm Santi, founder and developer of Onykrom. I build from Argentina for businesses anywhere in the world.

I work alone on purpose: you talk directly to the person who builds your system. No account managers, no outsourcing.

  • Based in Argentina
  • Remote, worldwide
  • Reply within 24 business hours
  • English & Spanish

Common questions

Do I pay anything before seeing the demo?
No. I build the demo for your business for free. If you approve it, we start with a 50% deposit and the rest is paid on delivery.
How long does it take?
A website, 7 days. Online booking, 14 days at most. The delivery date is in writing, and if I am late, every week of delay adds a free month of care.
How much does it cost?
Every service has a starting price and you get a fixed quote before anything starts. Custom automations are quoted on what you need.
Do I need to be technical?
No. With the care plan I handle hosting, changes, backups and support. You never touch anything technical.
Do you work with businesses in other countries?
Yes. I work remotely for any country, in English or Spanish, with pricing for your region.

Let's build yours

Ask for a free demo, a quote or a question. I reply within 24 business hours.

I only use what you write here to answer you. Privacy