Building in 2026

Software
that ships.

We build focused, opinionated software products for real-world professionals. No bloat. No fluff. Just tools that work.

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Products live
60%
No-show reduction with TopBook
24/7
Online booking, always on
AI
Predicting the future
Our products

Built for the people
doing the real work.

Every product we ship solves one problem, solves it well, and gets out of the way.

Booking SaaSLive

TopBook

Smart appointment scheduling for service businesses. WhatsApp reminders, online booking, multi-employee agendas. Zero no-shows.

  • Online booking page in 2 minutes
  • Automated WhatsApp reminders
  • Client management & history
  • Multi-employee scheduling
  • Stripe deposit collection
Visit topbook.app
topbook.app/maria-salon
Today's Agenda
Tuesday · May 22
● Live
14
Appointments
$2,450
Revenue
▲ 3
vs yesterday
9:00 AM
María González
Cut + Color · 90 min
Confirmed
10:30 AM
Carlos Ruiz
Beard Trim · 30 min
WhatsApp sent
12:00 PM
Lucía Martín
Manicure · 45 min
Pending
AI · HealthTechBeta

DenialXero

AI-native Revenue Cycle Assistant for dental clinics. Analyze claim risk before submission, draft appeals, recover lost revenue.

  • Claim risk analysis before submission
  • AI-generated appeal letters
  • Open Dental integration
  • HIPAA-compliant by design
  • Revenue dashboard & denial trends
Visit denialxero.com
denialxero.com/dashboard
Claim Risk Analysis
Real-time · Powered by AI
⚡ Live
$4,200
Recovered this month
#2847 · D2391
$185 · Submit ready
Low risk
#2848 · D2740
$920 · Add modifier 25
Medium
#2849 · D7140
$245 · Missing docs
High risk
✨
AI suggests: Add procedural notes for claim #2848 to reduce denial risk by 73%.
About

Small team.
Big focus.

MithrilCore is an independent software studio. We build vertical SaaS products for industries that have been underserved by software — service businesses, healthcare billing, and beyond.

We move fast, ship often, and stay close to our users. Every product is a bet on a specific problem being worth solving.

Questions? Reach us at jose.jinoria@mithrilcore.com

Appointments today
14
↑ 3 more than yesterday
Claims at risk
$4,200
7 claims flagged
No-show rate
2.1%
↓ from 12.4% before TopBook
Jose Jinoria — Founder & CEO of MithrilCore
Currently building
DenialXero · Beta
Founder & CEO

Jose Jinoria

Founder · CEO · Builder · MithrilCore

Engineer, operator, builder. I started MithrilCore to ship focused software for industries that tech has overlooked — service businesses, healthcare billing, and the long tail of small businesses that deserve great tools.

I write the code, talk to the customers, and ship every week. No layers, no fluff — just the work.

"Pick a problem worth solving. Then refuse to stop until it's solved."

Software, built
with intent.

Two products live, more on the way. If you're in service, healthcare, or any underserved vertical — let's talk.

Get in touch Browse products