MCP servers · ai builder
0n App Builder MCP server
Generate a .0n app from a description. Produces a packaged .0n bundle that installs via the marketplace and runs against the universal capability surface.. Hosted by 0n3: 3 endpoints your AI can call with your own 0n App Builder account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.
3 endpoints3 categoriesauth: bearer_or_sessionhosted
What your AI can do with 0n App Builder
Generate app · Build a complete .0n app from a description1
Generate an app
POST /api/app-builder/generatePublish app · Publish a generated app to the marketplace1
Publish an app
POST /api/marketplace/publishExecute app · Execute an installed .0n app for a location1
Run an app
POST /api/marketplace/execute/{appId}Install in three steps
- Create a free account at 0n3.app and connect 0n App Builder: paste a key or sign in through a door. It lands in your vault, encrypted.
- Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
- Ask your AI: whoami. It answers with your connected services. Then ask it to generate an app in 0n App Builder.
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"
Connect 0n App Builder to
Claude Code + 0n App BuilderMCP server + skillClaude (desktop & claude.ai) + 0n App BuilderconnectorChatGPT + 0n App Builderconnector · GPT actionCodex CLI + 0n App BuilderMCP serverGemini CLI + 0n App BuilderMCP serverCursor + 0n App BuilderMCP serverVS Code (Copilot) + 0n App BuilderMCP serverWindsurf + 0n App BuilderMCP server
More ai builder MCP servers
0n Automation Builder6 endpoints0n AI Website Editor6 endpoints0n Course Builder3 endpoints0n SaaS Factory3 endpointsQuestions
What can an AI do with the 0n App Builder MCP server?
3 things: generate app, publish app, execute app. Every call runs with your own 0n App Builder connection and lands on a receipt.
Do I need to run anything on my computer?
No. 0n3 is hosted. Connect 0n App Builder once, install 0n3 into your AI with one line, done.
Where does my 0n App Builder key go?
Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.