Is there a free trial?

Yes. Following a free 3-day demo build, you can test with a 14-day trial. No credit card required.

What are the pricing options?

From ¥5,000/mo (excl. tax, fixed monthly fee). Lite covers Web or LINE (one channel); Basic and above include Web + LINE. Setup fee waived until 31 December 2026. View the pricing page or request our PDF brochure for details.

How do you prevent inaccurate answers (hallucinations)?

Using retrieval-augmented generation (RAG), ONEBOT only answers based on your verified knowledge. Uncovered queries are gracefully escalated to your team.

Can it connect to social messaging channels like LINE?

Yes. LINE is available from Lite (Web or LINE, one channel). Basic and above support Web and LINE together, managed from a single dashboard.

Where is the data stored and is it secure?

All conversation and training data is stored on servers located in Japan with in-transit encryption, 1-year audit log retention, and full APPI compliance.

How does ONEBOT differ from other chatbots?

Automated document learning via RAG, native LINE integration, data stored on servers located in Japan, and onboarding and operations supported by VAON.

Can I cancel anytime?

Contracts are month-to-month. Cancellation takes effect at the end of the following month with one month's notice.

Does ONEBOT support multilingual inquiries?

Yes. It accurately parses documents in Japanese and English, generating fluent, polite responses matching your brand voice.

AI Chatbot for SMBs & Enterprises

Stop answering
the same question twice.

Automate customer support 24/7 on LINE and Web with AI trained exclusively on your official company materials.

RAG architecture strictly suppresses hallucinations by admitting when an answer is not in your documents, gracefully routing to your staff. Live in as little as 2 weeks, no dedicated IT staff needed.

Request Info (Free · 1 min)Apply for Free Demo

🎁 Setup fee waived — until 31 December 2026

✓ From ¥5,000/mo (excl. tax)
✓ As fast as 2 weeks
✓ No IT staff needed
✓ Servers located in Japan
✓ 14-day trial

OneBot is a RAG-powered AI chatbot that accurately answers inquiries across LINE Official Accounts and websites based exclusively on your company documents. All data is stored on servers located in Japan.

* 40–60% automation rate: varies depending on knowledge coverage and query regularity

OneBot AI Assistant

AI Cloud Connected

RAG Mode

* Demo chatbot responding based on OneBot official site knowledge.

See ONEBOT in action

A 90-second look at how ONEBOT turns your data into an instant AI expert — answering customers 24/7.

Track Record

Onboarding

Live in as little as 2 weeks

Uptime target

99.5%

Not a guarantee. Service Specification

Data Hosting

Servers located in Japan

Trial

14-Day Free Trial

Powering support for E-commerce, Clinics, Schools, and Real Estate

Case Study

Private University in Kanto | AI automatically routes admissions, student life & career inquiries

View Case Study →

OPERATING COMPANY

VAON VIET NAM Co., Ltd. (12+ years developing for the Japanese market)

Inquiries: Please let us know your preferred time via our form. A Japanese-speaking specialist will reply.
Email: [email protected] (Reply within 1 business day)

About Us Privacy Policy Terms of Service Legal Notice (Tokushoho)

✓ Servers located in Japan
✓ Compliant with Act on Protection of Personal Information (APPI)
✓ Encrypted in-transit communications (TLS/HTTPS)
✓ 1-year operation audit logs retained

3 Reasons Why Teams Choose ONEBOT

Accurate AI — Answers Exclusively from Your Data

ONEBOT indexes strictly your company manuals, website, and docs. Strictly minimizes hallucinations by answering only within verified facts. Supports PDF, Excel, Word, and web URLs.

Unified LINE × Web Management — Optimized for the Japanese Market

Native support for Japan's leading messaging app, LINE. Manage both website chat and LINE replies in a single dashboard, seamlessly switching between guided button prompts and free-form AI answers.

No In-House IT Staff Required — Full Support & Operation by VAON

VAON handles server setup, AI configuration, and ongoing maintenance. Simply upload your files and track performance on the dashboard. Live in as little as 2 weeks.

Why ONEBOT

ONEBOT vs. Alternatives

Compare ONEBOT with manual scenario bots and building in-house.

Feature	ONEBOT	Scenario-based (manual)	In-house build
Learns from your documents	✓ Automatic (RAG)	Manual scripting	Depends on build
Hallucination control	✓ Answers only from your documents	— (no generative AI)	Depends on design
LINE integration	✓ Built-in (Plus and above)	Varies by product	Requires development
No-code setup	✓	Varies by product	✗
Time to launch	As fast as 2 weeks	Depends on scenario volume	Months+
If the AI provider fails	✓ Scenario replies keep running	— (no AI dependency)	Depends on design
IT workload	Setup & operations supported by us	Scenario upkeep required	Ongoing dev & maintenance
Servers located in Japan	✓	Varies by product	Depends on setup

Learns from your documents

ONEBOT: ✓ Automatic (RAG)
Scenario-based (manual): Manual scripting
In-house build: Depends on build

Hallucination control

ONEBOT: ✓ Answers only from your documents
Scenario-based (manual): — (no generative AI)
In-house build: Depends on design

LINE integration

ONEBOT: ✓ Built-in (Plus and above)
Scenario-based (manual): Varies by product
In-house build: Requires development

No-code setup

ONEBOT: ✓
Scenario-based (manual): Varies by product
In-house build: ✗

Time to launch

ONEBOT: As fast as 2 weeks
Scenario-based (manual): Depends on scenario volume
In-house build: Months+

If the AI provider fails

ONEBOT: ✓ Scenario replies keep running
Scenario-based (manual): — (no AI dependency)
In-house build: Depends on design

IT workload

ONEBOT: Setup & operations supported by us
Scenario-based (manual): Scenario upkeep required
In-house build: Ongoing dev & maintenance

Servers located in Japan

ONEBOT: ✓
Scenario-based (manual): Varies by product
In-house build: Depends on setup

*Comparison assumes typical configurations; actual capabilities vary by product and setup.

Tailored Solutions for Every Industry

E-Commerce & Retail24/7 automated replies for orders, returns, tracking, and sizing.View Use Cases & Live Demo →Clinics & HealthcareInstant answers on consultation hours, booking slots, and checkup preparation via LINE.View Use Cases & Live Demo →Beauty & SalonsAutomate inquiries on service menus, stylist schedules, and pricing.Consult for Your Use Case →Real EstateInitial qualification for tenant criteria, tour bookings, and document requirements.Consult for Your Use Case →IT & SaaSIndex API docs and user manuals to deflect tier-1 technical support tickets.Consult for Your Use Case →Education & AcademiesAutomate admissions, scholarship rules, campus visit info, and department routing.View Use Cases & Live Demo →

ONEBOT by the Numbers

40〜60%

Ticket Automation Rate*

No dedicated IT staff needed

Setup & operations supported by us

24/7

Continuous 24/7 Service

2 Wks

Fastest Deployment

*Actual automation rate varies depending on FAQ coverage and query predictability

Rollout Timeline

1DiscoveryNeeds & use case confirmation1 Day
2Demo BuildWorking demo built with your docs3 Days
3Trial14-day production trial, no card needed14 Days
4Contract & TrainingPlan finalized & full knowledge indexed2 Days
5LaunchLive on Web & LINE with VAON ongoing supportLive

Frequently Asked Questions

As fast as 2 weeks. A working demo can be created in 3 business days.

Transparent Pricing

Predictable Monthly Plans — Overage ¥10–15/msg

From ¥5,000/mo (excl. tax). Lite: Web or LINE (one channel); Basic and above: Web + LINE

Setup fee waived — until 31 December 2026

Lite

Solo shops & small businesses

¥5,000/mo (excl. tax)

Messages1,000 messages/mo (~140 conversations)
Bots1
ChannelsWeb or LINE (one channel)
SupportEmail

Get Details

Basic

Small business, Web + LINE

¥15,000/mo (excl. tax)

Messages3,000 messages/mo (~430 conversations)
Bots2
ChannelsWeb + LINE
SupportEmail

Get Details

Plus

★ Most Popular

Growing business, multiple bots

¥37,000/mo (excl. tax)

Messages8,000 messages/mo (~1,140 conversations)
Bots5
ChannelsWeb + LINE
SupportEmail + onboarding

Request Free Demo

Business

Multi-site, high volume

From ¥90,000/mo (excl. tax)

Messages25,000 messages/mo (~3,570 conversations)
Bots10
ChannelsWeb + LINE
SupportDedicated manager; uptime target set per contract

Book Consultation

Enterprise: BYOK, dedicated CS, uptime target set per contract. Contact us.

View Full Pricing Breakdown →Request Pricing Sheet (PDF)

Experience ONEBOT with OneBot in 30 minutes

We will configure a working prototype using your website or FAQ docs in 3 business days with no setup work on your side. Feel free to request our documentation first.

✓ A specialist will reply within 1 business day
✓ No credit card or commitment required
✓ All data stored on servers located in Japan

Stop answering the same question twice.