Software & marketing lab · La Paz, Mexico
We build websites, Shopify stores, custom systems, social media content and WhatsApp bots. The person you talk to is the person who builds it: no middlemen.
Websites from $3,500 MXN · Contract and invoice
Real clients
Spa · Social
Hotel · SocialServices
Most vendors make you choose between someone who codes and someone who designs. We do both, so you never coordinate two teams blaming each other.
Websites, online stores and the systems that run your operation.
From $3,500 MXN
See the service: Custom softwareMonthly on-brand content so your business looks active and reaches new people.
Plans from $999 MXN per month
See the service: Marketing & social mediaAn assistant that replies, asks for missing details and hands your team tidy requests.
From $8,000 MXN + $500 per month
See the service: AI automation & WhatsApp botsTechnology
We pick the tool for the problem. These are the ones we master and run in production.
When the problem is about data or processes, we work in Python. This is what we can build for your business:
01APIs and back ends with FastAPI
Fast, documented services so your systems, app or store can talk to each other.
02Data processing
Clean, match and transform data from Excel, CSV, databases or other systems, once or on a schedule.
03Integrations
Connect external services, payment gateways and internal systems so nothing is typed twice.
04OCR with vision models
Read documents, receipts and IDs from a photo or a PDF.
05Structured extraction
Turn what a document says into tidy fields, ready for your system or spreadsheet.
06Automations
Scheduled jobs and workflows that run on their own and flag when a person is needed.
No automatic reading is perfect: accuracy depends on document quality, so for critical data we keep a human review step.
How we work
A short, clear process. We ask before we assume, and everything is put in writing.
01
Tell us about your business on WhatsApp or in person in La Paz. We find what is costing you time or customers.
02
Clear scope, price and timeline before we start. We sign a contract and issue invoices.
03
With a 20% deposit of the total we start designing and building.
04
You see real progress. Design, content and development come from the same team.
05
We go live, check everything works and stay on for maintenance if you need it.
Work
An in-house product we use every day, software and social media clients, and projects for businesses across industries.
In-house product · in operation
Our CRM, operated by people and by AI agents.
It is the system ELROI Labs uses for its leads, follow-ups, tasks and reports. We built it, we use it every day, and we can implement the same for your business.
Custom system
Custom ERP for the company’s operations.
Social media
Monthly content for Instagram and Facebook.
Social media
Boutique hotel: social media and Google Ads.
Landing pages we have designed and built for other businesses.
Landing page for a law firm.
Landing page for a law firm.
Landing page for a general and laparoscopic surgeon.
Landing page for an architecture, construction, surveying and appraisal company.
Made at ELROI
Before we offer you an automation, we use it ourselves. This is what runs at ELROI Labs today and what we can set up for your business:
Our CRM: leads, follow-ups, tasks and reports, with an MCP server so AI agents can operate it with each user’s permissions.
WhatsApp built into the CRM: AI writes the draft and a person approves it before it is sent. A bot replies with the business context.
Social posts scheduled with Postiz on our own server; a webhook logs in the CRM what got published.
AI agent routines on top of the CRM: morning plan, end-of-day close and the follow-up queue.
Bot demo
A simulation made for this page with a fictional business. Pick replies and watch the bot ask for missing details and hand your team a ready-to-quote request.
T-shirt print shop
Fictional business · demo
Bot: Hi! I am the shop’s assistant. How can I help?
The request shows up here as the bot collects the details.
Simulated in your browser: it sends no messages and stores no data.
Pricing
Prices in Mexican pesos (MXN), plus VAT if you need an invoice. The final number depends on scope, and we confirm it in writing before we start.
Basic
A one-page template site with your info, photos, location and a WhatsApp button to book or request a quote.
From$3,500
Professional
Custom design, several sections, contact form and basic SEO.
From$7,000
Complete
A 5–6 section site, content editing panel, visual material and SEO.
From$15,000
Basic store
Setup, up to about 30 products and online payments.
From$12,000
Complete store
Large catalog, shipping and custom design.
From$20,000
Existing store fix-up
Catalog clean-up, inventory and domain.
From$6,000
Simple system
Records, scheduling and job tracking.
From$25,000
Client portal
Progress, documents and payments for your clients.
From$40,000
CRM, ERP and integrations
Larger systems, quoted after a review.
Quoted after review
Starter
For a business that just needs to look active.
$999per month
Presence
To look good and consistent.
$2,500per month
Growth
To reach new people.
$3,500per month
Sales
To get messages that turn into sales.
$4,500per month
Enterprise
For multiple locations, tourism or a large brand.
$7,500per month
Social media plans are billed at the start of each month, with no setup fee. Ad spend (what Meta or Google charge for ads) is separate and paid directly with your card.
Online booking
Time slots, capacity and confirmation.
+$6,000
Quote builder or order form
Customers put their order together on their own.
+$5,000
Catalog with date availability
Great for furniture or equipment rentals.
+$5,000
AI WhatsApp bot
Asks for missing details and organizes requests.
+$8,000+ $500 per month
Basic maintenance
Hosting, domain, backups and minor changes.
$350per month
Pro maintenance
All of the above plus 2 hours of changes per month.
$800per month
Estimator
Pick what you need and see the starting price instantly. We confirm it in writing afterwards.
Team
ELROI Labs is a lab, not a call center. The person who writes to you is the person who does the work, and you notice it in turnaround and in the way we treat you.
Based in La Paz, Baja California Sur. We work in person in La Paz and remotely with businesses in other cities.
Development, software and AI
Full-stack engineer. Builds the stores, systems and automations: Laravel, Python and FastAPI, Shopify, React and applied AI.
Content and social media
Runs content and social media: shooting, editing, stories and day-to-day care of your community.
FAQ
In La Paz, Baja California Sur, Mexico. We meet in person in La Paz and work remotely with businesses in other cities.
From $3,500 MXN for Basic, $7,000 for Professional and $15,000 for Complete, plus VAT if you need an invoice. The final price depends on scope and we confirm it in writing.
Yes. Every project has a contract and we issue Mexican tax invoices (factura).
We start with a 20% deposit of the total. Social media plans are billed at the start of each month, with no setup fee.
Yes. We set up stores, load the catalog, connect payments and shipping, fix existing stores and build back-end integrations with Laravel or Python.
Yes. We use Python and FastAPI for APIs and back ends, data processing, integrations and AI, such as reading documents and IDs with vision models and turning them into structured data.
Yes. We pick up, improve and finish projects someone else started.
No. We manage the ads; the ad spend (what Meta or Google charge) is paid directly with your card.
It answers frequent questions, asks for missing details and organizes requests so your team only has to confirm. When needed, it alerts a person.
Contact
WhatsApp is the fastest way. If you prefer, leave us a message and we will reach out.
WhatsApp+52 615 155 9659Message us and the person who will do the work replies directly.