// lab
Try it before you hire me.
Six things I build for businesses, running right on this page: an AI assistant, payments on several platforms, PDF documents, automations, a SaaS dashboard and integrations. The businesses and data are samples: nothing is sent or charged.
// 01 · AI assistant
An assistant that answers, quotes and books
This is the chat of Tracción, a fictional tire shop. Ask about prices or payment options, or ask for an appointment: it checks the schedule, the booking shows up on the side and you can download a PDF confirmation or add it to your calendar.
Booking through a validated tool
The AI doesn’t just “say” it booked: it calls a function that checks the schedule and rejects taken slots.
Daily spending cap
Each visitor and the whole site have a daily limit. Cost is checked before calling the model.
Fallback without AI
If the cap is reached or the provider fails, a rule-based assistant takes over. Nobody is left without an answer.
Only the business’s data
Prices, hours and promotions come from the loaded data; when it doesn’t know, it says so.
Tracción · Tire shop
Assistant · replies instantly
// 02 · payments
Get paid on the platform your customer uses
A sample checkout with six ways to pay. Pick the currency and the platform and pay: you’ll see how the payment notice arrives, how it is verified and the receipt that is issued. It is a simulation: nothing is charged and no platform is contacted.
Multiple currencies
Each platform only shows the currencies it accepts.
Verified notice
The payment notice is signed and checked before the order is marked as paid.
No double charges
If the same notice arrives twice, it is processed once.
Automatic receipt
Once approved, a PDF receipt is issued.
Payment platform
Notice sent by the platform
Computed signature
Simulation: no data goes to the platforms. With a real client, each one connects with its own account and keys, in test mode first.
// 03 · documents
Quotes, invoices and contracts as PDF, instantly
Fill in the details and download the document. The system does the math, applies taxes and discounts, and the contract is signed on screen with a fingerprint that detects any change.
What about an assistant that answers from your documents and cites the source? See it at Estudio PazPreview
Documents are generated in your browser and carry a “SAMPLE” mark.
// 04 · live automation
From the form to the sheet, the CRM and the inbox, on its own
Fill in the contact form of a sample business and watch each step run. The email and the team alert show up in the inbox below: nothing is sent to anyone.
Three real n8n workflows with AI, to run node by node- 01
Form received
The request comes in with its data.
- 02
Validate and clean
Valid email, trimmed text, no duplicates.
- 03
Classify
Priority by budget and urgency; interest by keywords.
- 04
Spreadsheet
Adds a row with the whole request.
- 05
CRM
Creates the deal in the right column.
- 06
Reply to the client
Personalized email with the next step.
- 07
Team alert
Message to the team channel if it is high priority.
| Date | Name | Company | Industry | USD | Interest | Priority |
|---|
Send the form to see what arrives.
High priority
Medium priority
Follow-up
Send the form to see what arrives.
Send the form to see what arrives.
Everything runs in your browser. With a real client, each step is a service: Google Sheets, a CRM, the business’s email and Slack or WhatsApp.
// 05 · SaaS dashboard
One platform for many businesses
A sample dashboard with several accounts, each with its own currency, plan and quotas. Switch businesses, browse the sections and try upgrading the plan.
A full management dashboard with sales, collections, debtors and stock: Grupo MolleBookings per day · last 14 days
| Day | Bookings |
|---|
Upcoming bookings
| Time | Customer | Service | Status |
|---|
| Name | Visits | Last visit | Spent |
|---|
No results.
Current plan
Monthly quotas
Each account only sees its own data. Quotas are enforced on the server before every action that costs money.
// 06 · integrations
It connects with what you already use
These are some of the platforms I integrate systems with. Tap one to see how it connects: account authorization, encrypted key storage and a connection test (simulated).
A WhatsApp assistant on the official Meta API, in support or sales mode, with an inbox for the teamPayments
- Mercado Pago
- Stripe
- PayPal
- Dodo Payments
- Pix
- Bank transfers
Messaging
- WhatsApp Business
- Telegram
- Email (Resend, SMTP)
- Instagram
Productivity
- Google Calendar
- Google Sheets
- Google Drive
- Gmail
- Microsoft 365
- Outlook
Invoicing
- ARCA (Argentine e-invoicing)
- PDF and QR
- VAT ledger
Artificial intelligence
- Claude
- Gemini
- OpenAI
- Document reading
Automation and data
- n8n
- Zapier
- Make
- Webhooks
- PostgreSQL
- REST API
Websites and stores
- WordPress
- Shopify
- Tiendanube
- Astro
Using something else? If it has an API or exports data, it can almost certainly be connected.
Want something like this for your business?
Tell me what you need and I’ll reply by email with a proposal.
Get in touch