AI for business
We reshape your daily back-office work into something AI can take on. You don't need an existing website to talk to us.
Quoted individually
See AI support →
AI for business and web design · music schools, guesthouses, inns and clinics
More roomin your work,
more colorin your days.
what we do
Two things Onbit does
Building websites, and using AI to lighten everyday back-office work. Onbit takes on the busywork of small businesses through these two lines.
Website design
From a single-page LP to a multi-page site — show your business online and turn visits into inquiries and bookings.
Monthly plans · 4 tiers
See the plans →ai for business
Cut the busywork with AI
Routine accounting and back-office tasks, drafting replies, rethinking repetitive work. We reshape the work you repeat every day so AI can take it on.
Already in active use with a client
Automate back-office work
Draft routine processing — invoices, expenses, reconciling payments — with AI, leaving people to just check it.
Spot the repetitive work
We map the tasks you repeat each day and week, and carve out the parts AI can take on.
Draft replies and documents
Draft email replies, routine reports and documents with AI, skipping the from-scratch effort.
For one business, we reshaped routine accounting and back-office work so that AI writes the first draft and a person only checks it.
Quoted individually to fit the work. Start with a free consultation.
AI adoption support is offered within Japan, in Japanese.
website plans
Four website plans
LP Basic for a single page focused on one announcement. HP Basic to show your whole business. HP Smart to hand the updates to us, and HP Pro to add English pages, booking integration and monthly advice.
Note: these are website-design prices. AI support is quoted individually to fit the work, and handled separately.
One page, one clear message
LP Basic
¥4,800 / month
¥57,600 per year · paid once a year
Recitals, trial lessons, a new menu, a seasonal campaign. For when you want to win one specific sign-up.
Details →Show the whole business
HP Basic
¥6,800 / month
¥81,600 per year · paid once a year
School intro, courses, stay plans, treatment menus, news and bookings. For showing your whole business across several pages.
Details →Updates handled for you
HP Smart
¥9,800 / month
¥117,600 per year · paid once a year
Everything in HP Basic, plus Onbit drafts 2 news posts and makes 2 small changes a month, and sends 1 access report. For keeping the site alive without taking time from your work.
Details →The full picture of a trusted business
HP Pro
¥14,800 / month
¥177,600 per year · paid once a year
Everything in HP Smart, plus English pages, booking-system integration and a monthly advice session. For inns that welcome overseas guests, and clinics and professional firms that need to show trust. Limited to 5 clients.
Details →Every plan runs on Astro and Cloudflare — pages load in under a second, with minimal risk of downtime. After launch, monthly support keeps an eye on things and handles small fixes.
All prices shown include tax.
how it works
How a website comes together
01 Talk
First, we listen
It's fine if much is still undecided. Tell us what's getting in the way and what you want to do. 30 minutes, online, free.
02 Proposal
We send a plan and an estimate
Page structure, design direction, an estimate and a schedule, all on one sheet. No jargon. We start building only once you're happy with it.
03 Build
We build the pages one by one
Depending on the plan, building takes 1 to 4 weeks. You can check progress any time on a preview URL (a staging page before launch). We report progress once a week.
04 Review
You review the whole site on a preview URL
Just before launch, you go through everything on a preview URL. Text, photos, colors, layout — we revise anything you want changed. We don't go live until you're satisfied.
05 Launch
Launch
We handle the domain setup, SSL (encrypted connection) and the operations manual. All you see is the URL of the finished live site.
06 Support
We keep working on it every month
Launch isn't the end. Within the monthly fee we swap text, add photos and make small improvements. The price stays the same — a year later, or five years later.
behind the build
Why a monthly plan works.
Onbit uses an AI coding assistant (Claude Code) to speed up the build.
Design decisions, talking with clients and the final code check are all done by a person.
Speed is the AI's job; quality is the person's job. We split the roles.
Person + Claude Code
01
Sort out the requirements
Claude Code
02
Design and build
Person + Claude Code
03
Code review and testing
Person + client
04
Launch
our story
It started with a music school
Taking on the back-office work for a music school made one thing clear: teaching and keeping a school running are two different jobs.
People who teach, host or treat clients want their time for their craft — yet news posts, bookings, enquiries and daily admin keep piling up. Onbit takes that back-office work off your plate.
These days we don't just build websites — we also help lighten repetitive admin work such as accounting with AI.
latest blog
Blog
2026.07.27
「最後に必ず検証ステップを」と書くのをやめた——Opus 5 移行で変えたこと
昨日、Onbit の主要エージェントを Opus 5 に統一した。あわせて、エージェント定義から「ダブルチェックして」系の指示を新たに書くのを禁止するルールを設けた。なぜそうしたか、何を残して何を削ったかを書く。
2026.07.26
Dispatcher が Q&A の文脈を持ち越せないと、正しい答えが「意味不明」になる
weekly-auto が投げた質問の答えを、Dispatcher が翌日のセッションで「意味不明な LINE メッセージ」として処理した。ステートレスなルーティンの、ありふれた落とし穴。
2026.07.25
夜間ワーカーが 3 夜連続で同じ答えを出した——dry-run の flip タイミングをどう決めるか
毎晩起動する夜間ワーカーが 3 日連続でまったく同じ 4 タスクを選んで dry-run している。実実行に切り替えるタイミングをどう決めるかという話——正解はない。
let's talk
Tell us what you have in mind
A free 30-minute chat. Schools, inns, clinics, small shops — any line of work, just tell us about it. "Still vague" is fine. If it's not a fit, you're free to walk away.