Free brand diagnosis

Brand diagnosis × Fan community platform

Turn your storyinto fan passionand sales.

In the age of AI, your fans sell your brand.

Your best salesperson is your fan. 24karat builds the community where fans gather, and turns their voices into an information asset that helps both people and AI.

Get your free brand diagnosis →See customer cases

First diagnosis free · Based on public information only · No preparation needed

Entertainment & IPOshi-katsu platform

A brand diagnosis shows where fan voices and your messaging differ

Illustrative screen (fictional brand)

~1.5M
Total wallets created (Oct 2026)
Since 2020
Connecting fans and brands
Zero personal data
A design that works without it

Clients & partners

tv asahiLOTTEMARKAWAREJoshinSapporo Real Estate Developmentavex clanOSC OlympicAVISPA FUKUOKAKaikadoULTRA PLANET
WHY NOW

People do not trust ads.
AI does not read them.

The only voices both people and AI believe come from a community of genuine fans. But right now, those voices are barely visible.

Until now: telling through ads

  • Not read
  • Not trusted
  • Not cited by AI

From now: your fan community does the telling

SORACHI 1984 Fan Community164 fans taking part
Fan M2 hours ago

The hop aroma is the best. It makes me want a proper glass for it.

#Hop aroma
Fan K5 hours ago

Found it on a trip, and I have loved it ever since.

#Trip drink
Fan YYesterday

Learning how it was born made me love it even more.

#Brand historyMission complete +30pt
PublishedGoogleAI searchcite it as evidence

Illustrative posts

HOW IT WORKS

Find the story. Grow it in community. Pass it on.
The loop brings your next fans.

Three steps repeat every month, and fan voices bring in your next customers.

Diagnosis reportBrandFans
Hop aroma
Brand history
How to enjoy itRoom to grow
STEP 1 · Findable

Find

AI compares what fans say with what your brand says, and finds the stories fans love that have not been told yet.

  • Fan voice analysis
  • How you appear in AI search
  • Priority next moves
The community is the heart of the loop
24karat app screens
STEP 2 · Community

Grow

Build your fan community inside the 24karat app. Missions and posts increase fan voices and fan actions.

  • Missions
  • Fan voices
  • Stamp rally
  • Map posts
  • Marketplace
  • Digital twin
citable.24karat.io/sorachi-1984
Fans on SORACHI 1984
From 164 fans · 2,337 voices
Hop aroma
Pouring & glass
Brand history
Friend toasts
STEP 3 · Citable

Pass it on

Fan voices are aggregated by theme into an information asset that helps both people and AI. Original posts and personally identifiable information are never shown.

  • Auto-updated monthly
  • Just link from your official site
  • No personal data shown

↻ Repeats every month: new customers become your next fans

WHY NOT JUST SNS?

Social media spreads it. Community keeps it.

It is not social media or 24karat, but both. The passion that starts on social media grows in your community and stays in a form AI can cite.

Social media
24karat community
Role
Reach new people, widely
Grow fan voices deeply, and keep them
Where voices go
They scroll past on the timeline and get buried
They build up in your community as a brand asset
Visibility to AI
Hard to read from outside, behind logins and API limits
Published through Citable as pages AI can cite
Who decides what is public
The platform
Your brand. Only theme-level summaries are published, never original posts or personal details
How you see results
Likes and follower counts
A monthly diagnosis shows how fan voices change, in numbers
Verify with a monthly diagnosis

See the results of your fan initiatives in numbers, every month.

See what moved in numbers, then plan your next step. Fans buy again and bring others with them. Those voices call in your next customers.

Until nowFan passion cannot be shown in numbers

Even after running initiatives, you cannot explain what worked.

With 24karatThe “why” becomes clear

Monthly changes and a next step let you explain the reasons and results of your initiatives internally.

Monthly reportLast monthThis month
Match between fan voice and your messaging
How you appear in AI search
Voices gathered in the community
Next stepFeature “how to enjoy it” in your official messaging

Illustrative screen

CASES

Fan passion, turned into results.

Fan community · Digital twin
A record of use, passed to the next owner

Kaikado (Kyoto tea caddies)

Each caddy bought in store or online gets a digital twin. The owner’s diary of daily use passes on when it is resold or handed down.

Fan community
1.7K+fans in community

SORACHI 1984

A lively fan community, plus a fan-built map of places to get SORACHI draft beer. 200+ spots.

Fan community
100K-scaleYouTube audience

MARKAWARE

Turning YouTube viewers into VIP fans. A place for fan voices on every video, plus secret sales for heavy users, turns passion into sales.

Shopping point program
200K+wallets · 100+ stores

Olympic

In-app points management, with expiring points and shopping vouchers built in.

Fan community
5K+DAU

Joshin

Coins for in-app quizzes and daily check-ins, plus a fans-only bulletin board.

VTuber · IP
¥10M+sales · 1,500+ vending machines

AIICO (VTuber × signage)

Selling digital goods for VTubers and engaging with fans.

Sponsor returns
Winning new sponsors

Avispa Fukuoka

Keeping fan passion alive on non-match days with votes and a bulletin board.

Stamp rally · Footfall
Ongoing

ULTRA PLANET

A pure stamp rally that brings fans to the places the brand wants them to go.

PRICING

Start small. Grow from there.

First, understand
Brand Diagnosis
¥50,000
/ month · first diagnosis free
  • Fan insight diagnosis
  • Regular diagnosis with improvement proposals
Connect with fans
Community
¥200,000
/ month · all features included
  • Fan community in the 24karat app
  • Diagnosis, missions, stamp rally, and marketplace
  • Includes Citable (public pages Google and AI can cite)
Earn and expand with fans
Partner
Contact us
 
  • All Community features (including Citable)
  • Your own branded app, API, and data integration
  • Planning and operations support from our team
FOR PARTNERS

Integrate fan engagement with simple, reliable APIs.

Use 24karat APIs to bring fan engagement into your apps, websites, and in-store touchpoints, without managing wallets, tokens, or blockchain infrastructure.

Point balanceAPI

Fetch a member's wallet address and point balance.

GET /v1/user/profile
LeaderboardEmbed

Show the ranking screen in your app with a signed URL.

POST /v1/zap/embed/leaderboard/signed-url
MissionsAPI

Get missions, tasks and rewards, and let members claim them.

GET /v1/missions
Fan roomEmbed

Send members into the chat room with a one-time URL.

POST /v1/social/rooms/{roomId}/entry-url
ItemsAPI

List the digital items a member owns.

GET /v1/items
CampaignsAPI

Join a campaign with its code and receive the reward.

POST /v1/campaigns/{campaignCode}/mint
EmbedShow a ready-made screen via a signed URLAPIFetch or run it, then build it into your own screenIllustrative screen.

Connect your member ID

Sign members in with the ID you already use. You do not need to run wallet or token infrastructure yourself.

Embed it, or build your own UI

Show ready-made screens such as wallet, ranking and fan rooms with a signed URL, or use the data APIs to build your own design.

Live in weeks, supported throughout

Ready-to-use features and APIs get you launched quickly, and our team works with you through operations after launch.

View API documentation →Talk to us about integration

A test environment and a production environment are available.

Sign in → embed a screen
# Sign in with your own member ID (from your server)
POST /v1/dapps/auth/challenge
{ "external_user_id": "member_1024" }
→ { "challenge_data": "…" }
 
# Sign with client_secret (HMAC-SHA256) and send
POST /v1/dapps/auth/solve
{ "challenge_data": "…", "signature": "…" }
→ {
    "uid": "…",
    "access_token": "…",
    "refresh_token": "…"
  }
 
# From here on, call with Authorization: Bearer and X-CLIENT-ID
# Ready-made screens: get a signed URL and show it
POST /v1/zap/embed/leaderboard/signed-url
{ "symbol": "BRAND" }
→ { "url": "https://…" }
FOR FANS

What you love becomes part of the brand’s story.

In the 24karat app, join the communities of your favorite brands and creators, and enjoy missions, stamp rallies, and limited digital items.

App StoreGoogle Play

Is your story reaching your fans?

We diagnose from public information only. No preparation needed.