Products How we build Capabilities AI layer About Start a project

Software for the shop on the corner, the gym down the road, and everything after.

Jai Devs builds SaaS products and custom platforms for Indian businesses — billing, bookings, memberships, and the AI layer that connects them. Two products are already live and running.

Start a project See what we've shipped
Live right now
Shops App ↗Billing & bookings for local shops
GymOS ↗Membership OS for gyms
JAI DEVS
SYSTEM ACTIVITY · TODAY
Shops AppOrder #1148 · Sharma Store
₹1,450
GymOSQR check-in · Rahul K.
Verified
MCP ServerQuery resolved · 84ms
200 OK
Shops AppWhatsApp booking confirmed
Sent
Uptime today99.98%
Systems operational
JAIDEVS.IN · GORAKHPUR / LUCKNOW

Built for real businesses, not case studies.

These aren't concept mockups. Shops App and GymOS are in production, handling real orders and real check-ins every day.

01 / Shops App

The counter, the ledger, and the shop's own website — in one app.

Multi-tenant SaaS for local businesses

Barbers, bakeries, restaurants, gyms and retail shops each get their own micro-website, a customer ledger, GST billing, and WhatsApp-first ordering — built mobile-first and bilingual for Tier 2 and Tier 3 India.

  • Auto-generated shop micro-websites
  • WhatsApp bookings & order updates
  • GST billing & invoicing
  • Inventory & stock tracking
  • Customer CRM & running ledger
  • Theme system & section builder
Explore Shops App →
Sharma General Store
GSTIN 09ABCPS1234K1Z5
INV-2026-0847
07 Sep 2026
ItemQtyAmount
Basmati Rice 5kg1₹620
Mustard Oil 1L2₹380
Atta 10kg1₹450
Subtotal₹1,450
GST (0%, exempt goods)₹0
Total₹1,450
MEMBERSHIP
Iron Fit Gym — Annual
GYMOS
RK
Rahul Kumar
Valid till 15 Dec 2026
156
MEMBERS
34
PRESENT
₹92.4k
REVENUE
🔥 12-day streak
02 / GymOS

Everyone in the gym — owner, trainer, member — on one system.

The operating system for gyms & fitness clubs

A multi-tenant B2B platform covering the full gym cycle — GPS-verified QR attendance, fee collection, workout programming, walk-in lead follow-up, staff salaries, and a branded microsite for every gym.

  • GPS-verified QR attendance
  • Workout plans & exercise builder
  • Fee collection & tax invoices
  • Member mobile portal (PWA)
  • Walk-in lead CRM
  • Staff & salary management
Explore GymOS →

How a product actually gets built here.

The same five stops, every time — it's how Shops App and GymOS both went from a business problem to something people use daily.

Problem
Sit with the actual workflow before opening an editor.
Design
Screens and data models for how the business really runs.
Engineering
Build the core system — auth, data, billing, the daily-use paths.
Automation
WhatsApp, reminders, reports — remove the manual follow-up.
Ship
Into real hands, then iterate on what actually gets used.

What we build, beyond the two products.

Custom software for businesses whose workflow doesn't fit an off-the-shelf tool.

01
Business applications
Custom platforms built around your workflow — multi-tenant dashboards, role-based access, real-time data.
02
SaaS products
Multi-user, scalable software from idea to launch — subscription billing, tenant isolation, feature gating.
03
Management systems
Dashboards, billing, operations and reporting — built for people who open them every single day.
04
Web applications
Responsive, mobile-first apps with PWA support, offline handling, and fast load times on patchy networks.
05
APIs & integrations
RESTful APIs, WhatsApp integration, payment gateways, and connectors between your existing systems.
06
AI-powered applications
MCP servers, intelligent automation, and LLM integration layered onto products you already run.

Make your existing software AI-ready.

You already have applications, data, and workflows. We build the layer that lets an AI assistant work with them safely.

What this means in practice

We build MCP (Model Context Protocol) servers — a standard that lets assistants like Claude and ChatGPT read and act on your existing systems, without replacing them.

  • Query business data in plain language
  • Trigger workflows and automate repeat tasks
  • Connect internal tools to an AI assistant
  • Give AI controlled, scoped access to your systems
  • Generate reports straight from your own data
Claude
ChatGPT
Gemini & compatible models
Your application

Business data, workflows, APIs, dashboards

REST / GraphQL
MCP server

Built by Jai Devs — tools, resources, access control

MCP protocol
AI assistant

Claude, ChatGPT, or a compatible model

What guides the work

1

Start with the workflow

We build around how your business actually operates, not around what the technology makes easy.

2

Design for the person using it daily

Mobile-first, touch-friendly, and bilingual where it's needed — not just for the person who commissioned it.

3

Connect everything on purpose

WhatsApp, payments, invoicing, analytics — the systems should talk to each other without manual copying.

4

Leave room for what's next

Modern, well-structured architecture, so automation and AI can be added later without a rebuild.

Have a specific problem? Let's build the solution.

Beyond Shops App and GymOS, we build custom software for businesses that need something an off-the-shelf product doesn't cover — internal tools, customer portals, workflow automation, custom dashboards, API integrations, and MCP servers.

Talk to Jai Devs
jaikrishnaverma@gmail.com +91 87567 06608