moh-hee-oh · Māori for "to understand"
Write code. Change the world.
The first commercially available programming language with AI reasoning built in - generation, connection, integration, and agents, with no libraries to wire up. Reads close to plain English, runs anywhere, builds anything from a one-page site to a full-stack app.
Mohio isn't only for one kind of developer. It's a full language that runs anywhere and covers any kind of app - so it meets you wherever you build.
Ship a whole app - front, back, and database - in one language you can actually read.
Move fast without gluing ten tools together. AI, auth, and scaffolding come standard.
From a one-page site to a full app - pick your architecture and Mohio builds the bones.
Accountability built in - every AI decision can carry an audit trail by default.
A first language that reads like English - and a Young Pioneers track to learn it.
Finance, healthcare, logistics and more - compliance in one word. See Enterprise ↗
Vibe coding made it easy to say what you want. Mohio makes it easy to own what gets built.
A language you can read and control - with AI reasoning, compliance, and integration built in - so your time goes to logic and the people you're building for, not to plumbing. The scaffolding is the language's job. The idea is yours.
No account. No sign-up wall. Clone it, run it, and watch a real AI decision execute with a confidence threshold and an audit trail the compiler made mandatory.
pip install lark anthropic. That's the whole toolchain.mio run a complete sector: financial program - PCI, AML, and an ai.decide block, all live.ANTHROPIC_API_KEY and the same program calls a real model - confidence, fallback, and audit handled by the language.No AI library to import. No auth to wire. No boilerplate to copy. The hard parts of modern software are part of the language itself - so you spend your time on the thing you're actually building.
Generation, connection, integration, decisions - AI is part of the grammar, not an API you call. Write ai.decide the way you'd write a normal instruction, with confidence and a fallback handled for you. Other languages call AI. Mohio thinks in it.
The agentic era needs guardrails. In Mohio they're enforced by the language, not left to hope - an agent does what you authorized and stops at the boundary you set. Powerful agents, on a leash you control.
Pick an architecture - a single page or a full-stack app - and Mohio scaffolds it for you. The single-page command alone sets up your sitemap, robots.txt, routing, an .htaccess, and a starter database. Literally one line of code.
Drop Mohio's config into Claude Code right now and build by describing what you want - Copilot, Cursor, and Windsurf next. Because the AI works in a language with everything baked in, you get real, readable, finished code. Deploy to our platform, coming soon.
We retired the tangle of nested if / else. Mohio reads like a list of instructions a person would actually give - so anyone can follow the logic, and chasing down a bug doesn't mean untangling a knot.
Every block locks shut with its own name, so you always know exactly where you are and code can't get crossed up. Clear structure you can read top to bottom - power without the mess.
Choose how you want to build - a single page or a full-stack app - and Mohio scaffolds everything you need, the way you need it. No setup checklist. No copy-pasting config from old projects.
Two architectures are live today, with more on the way. Pick one with a single command and Mohio lays down the foundation automatically - so you start on your actual idea, not the plumbing.
.htaccess wired up for clean URLsOne terminal, four programs. The language conceived sixty days ago is serving live web applications today.
Zork - rebuilt on the Mohio runtime. Type a command, the AI responds in real time, the world remembers where you've been. Phrase something unexpected and it tries to work out what you meant. Simple on the surface; underneath, it's the same engine that powers a fraud check or a patient intake flow.
▶ Play it nowA $74,500 charge from an unknown device. The model returns 0.95 confidence against an 0.85 floor - blocked, audited, done.
422 · Transaction blockedA clinical triage call falls below the 0.95 confidence floor the sector enforces. It routes to a human automatically - as the language required.
202 · Referred to humanCharge a card, write the invoice, email the receipt - atomic. If any step fails, the rollback fires in reverse automatically.
201 · Order confirmedEvery claim below was checked against publicly available language specifications and documentation. These aren't marketing positions - they're structural facts about what Mohio does that no language did before.
Verified via independent AI-assisted research against public documentation. · Challenge any claim on GitHub
You don't have to be a developer to follow Mohio. Here's ordinary code next to the Mohio version - the difference is the whole point.
Nested if / else if / else is where logic goes to hide. Mohio reads like the instructions you'd actually give.
if (order.total > 100) { return "free shipping"; } else if (member.tier === "gold") { return "free shipping"; } else { return "standard shipping"; }
check order when total above 100 give back "free shipping" when member is gold give back "free shipping" otherwise give back "standard shipping" check: done
Every block closes with its own name, so you always know what just ended and code can't get crossed up.
function checkAccess(user) { if (user.role === "admin") { return true; } return false; } // which } closes what?
task checkAccess(user) check user.role when admin give back true otherwise give back false check: done task: done
You've seen what it does
Early access. A community of pioneers. And a direct line to tell us what you want to build.
Complete, production-ready programs. The sector declaration at the top does the compliance work. The rest is business logic - exactly as you'd describe it to a colleague.
## PCI_DSS + SOC2 + AML rules activated. One word. sector: financial listen for new sh.Transaction require role screener ## Pull member history. Cache it five minutes. find member in db.members where id is transaction.member_id cache for 5 minutes find: done ## Ask the AI. Require 85% confidence. ai.decide isFraudulent returns boolean confidence above 0.85 weigh transaction.amount, transaction.velocity_score, transaction.device_fingerprint, member.transaction_history ai.audit to fraud_audit_log not confident give back 202 "Referred to manual review" on.failure give back 503 "Fraud check unavailable" ai.decide: done check isFraudulent when true update db.transactions status blocked match id to transaction.id update: done give back 422 "Transaction blocked" otherwise give back 200 "Approved" check: done new: done listen: done
## HIPAA + HITECH activated. PHI encrypted. Audit trail on. sector: healthcare listen for new sh.PatientIntake require role clinician or staff validate intake_rules against request.body on.failure give back 422 errors validate: done ## save auto-applies: AES-256 · phi_audit_log · 6-year retention save to db.patients mrn request.body.mrn patient_name request.body.patient_name diagnosis request.body.diagnosis created_at now() save: done ## Clinical AI triage. 0.95 floor enforced by sector. ai.decide assess_triage returns text confidence above 0.95 weigh request.body.chief_complaint, request.body.vital_signs ai.audit to phi_audit_log not confident give back 202 "Clinical review required" ai.decide: done give back 201 "Patient intake complete" new: done listen: done
## This is all it takes. One line unlocks everything below. sector: financial ## What just activated automatically: ## ## COMPLIANCE PCI-DSS v4 · SOC2 · BSA/AML thresholds ## FIELDS card_cvv never stored · card_number tokenized ## ssn format-checked · transaction 5-yr retention ## THRESHOLDS >= $10k cash → CTR fires automatically ## >= $5k flagged → SAR needs 0.95 + human review ## all transactions → OFAC check required ## AI FLOORS transactions 0.85 · credit 0.90 + review on denial ## SECURITY AES-256 at rest · TLS 1.2+ · 15-min sessions ## AUDIT every read, write, and ai.decide → audit log ## ## One word. Everything above. The compiler does the rest. sector: healthcare ## Same model - HIPAA + HITECH + PHI
mio run fraud_check.mho
importProfiles teach the language your industry - its field types, retention rules, thresholds, and AI constraints. There are three tiers, and anyone can build one.
Open and free. Fork an existing profile, write your own, share it. Use at your own risk - community profiles are not reviewed or supported by Mohio.
Mohio reviews the profile and approves it, and the author pledges to support and update it as rules change. The trust layer between community and us.
Professionally built, legally reviewed, and kept current by the Mohio team as regulations change. Fully supported. Charged by sector.
Encode a domain you know, or translate Mohio into your language - Portuguese, Spanish, Hindi and beyond. Contributions are how the language learns the world.
Mohio activates technical enforcement controls - it does not guarantee compliance. Qualified legal counsel does.
Built in the open, by one developer and one AI. Here's the path so far and what's next.
ai.decide block parsed, executed, and audited. Tree-walking interpreter on a Lark Earley grammar.sector: financial and sector: healthcare active. Zork live at zork.mohio.io.mio translate language packs (PT/ES/Hindi), mio fmt, PostgreSQL, mioknow persistent memory, miostream, mioschedule.mioapp native mobile, miochain blockchain, miovault HSM, and a Rust rewrite of the interpreter.The language is here today. These are the surfaces being built around it - get on the waitlist and you'll be first in.
Mohio's whole design - code a manager can read in three seconds - turns out to be exactly what makes it a brilliant way to learn. The Young Pioneers program is a gamified path for builders aged 13 to 17, run with a parent or guardian alongside.
Parent-involved by design. Meet our Founding Young Pioneers soon.
Get in before public launch and help shape the language. There's a track for working developers and a track for young builders aged 13 to 17. The first-mover window is genuinely narrow - six to twelve months, and we're early in that window.
Financial & healthcare developers
No contract. No cost. No obligation.
Builders aged 13-17 · with a parent or guardian
Free. Parent-involved by design.
Apply for early access - choose your track
First cohort: 10–20 developers per sector. Young Pioneers apply with a parent or guardian and start with a guided first project.
The things people ask first - including the one every developer is thinking about right now.
ai.decide lets you state the goal, a confidence threshold, an audit trail, and a fallback. It is not "describe your app and AI writes it." You author every line. Intent over syntax.Where the project's been written about, and the milestones along the way.
How a Charlotte-area founder sketched the core of a new programming language on his phone during a roadside breakdown on I-77 - and had it running live on the web less than two months later, built by one developer and one AI working together.
Read the articleai.decide parsing, calling a real model, audit confirmed.The language, compiler, and base runtime are open source - Apache 2.0. Certified profiles, the hosted platform, and the commercial runtime are the revenue layer. The language will never be closed.
The Mohio compiler and base runtime - Apache 2.0. Clone it, run the demos, open an issue. Star the repo to follow along.
Follow development in real time, meet early adopters, and help shape what Mohio becomes. Built in public, with the community.
Mohio is built without VC backing or corporate overhead. If you believe the world needs an AI-native language built in the open, help keep it moving.
When AI makes real decisions - money, health, eligibility, safety - you need compliance, agents you can govern, persistent memory, audit trails, and version and cost control you can prove. That's the enterprise side of Mohio, and it has a home of its own. Finance, healthcare, government, logistics, and more.
Mohio is in active development and the first-mover window is short. Join for early access to the runtime, the sector profiles, the platform, and the community - and to help shape what comes next.
Reserve your spot - no spam, ever.