Fibonexa / applied AI studio
Applied AI, built for the real world.
Fibonexa builds AI products that solve concrete problems, from compliance to marketing.
Our products / 02
Built around problems worth solving.
Tailor-made for the people who actually use it.
Now in pre-registrationAI that reviews building plans against municipal codes and regulations, cutting permit approval times for governments and firms.
Step 1 of 3
Every building starts as a stack of drawings.
Foundation, structure, core, façade and roof. Each layer carries its own rules.
Step 2 of 3
PlanVerify reads each layer against the code.
Municipal codes and regulations, checked layer by layer.
Step 3 of 3
Roof to foundation, in one pass.
The scan moves down the building. Every layer it has cleared turns green.
Layers
Six views of PlanVerify
01—06 / product views
In developmentKnowNexa
An AI fact checker with browser extensions that verifies claims, headlines, and articles in real time, with cited sources on every check.
Step 1 of 4
Claim
Highlight any claim, headline, or article with the browser extension.
Step 2 of 4
Sources
Sources are gathered for every check.
Step 3 of 4
Evidence, context, confidence
Each source is weighed for what it supports and what it leaves out.
Step 4 of 4
Fact verification
Unbiased details and information, with cited sources on every check.
The studio / 01
A small team making
useful AI.
Fibonexa is a remote-first applied AI startup based in Philadelphia, Pennsylvania. We build focused products for the rules, knowledge, and decisions that shape everyday life.
AboutContact Us / 03
Questions? We're here to help.
For questions about our products, partnership opportunities, or general inquiries, please reach out. We look forward to hearing from you.






SocialNexa
An AI social media marketing agent that plans, writes, and schedules posts across your channels, then learns from every like, comment, and share.
Step 1 of 4
Listen
Tracks trends and conversations across your social channels.
Step 2 of 4
Create
Drafts posts, captions, and visuals in your brand voice.
Step 3 of 4
Publish
Schedules and publishes to every channel at the right time.
Step 4 of 4
Grow
Measures engagement and learns what works, post after post.