Build it with Claude.
Open it in Telegram.
Exam coaches, quizzes, mini games. Build an app in a conversation with Claude, then just say “Publish it to Telegram”. Share it with one link — everyone's progress is saved.
Publish in three steps
No code, no deployment, no setup.
Connect Claude
Add the connector in Claude's settings and verify with Telegram. Only once.
Build by chatting
Claude knows this platform's runtime, so the app works in Telegram from the start. Preview and refine as you go.
“Publish it”
You get a Telegram link. Tap to open, forward it to friends.
More than a one-off
All your apps
Every app lives in one bot, in a list you can pick from.
Progress saved
Answers and settings are saved per person and follow them across devices.
Share with friends
Share to any Telegram chat. Build leaderboards and other shared features.
Preview in Claude
Try the app in the same runtime as Telegram before you publish.
Versions
Every publish is a version you can roll back to.
Sandboxed
Each app runs isolated and can't touch your accounts.
Connect Claude
In Claude (web or desktop), open Settings → Connectors → Add custom connector and enter this URL:
https://launch.koiswarm.com/mcpPress “Connect” and a confirmation page opens. Open the bot from its button, tap “Approve”, then “Allow”. Done.