MCP servers · shadcn/ui · MCP server
Connect Codex CLI to shadcn/ui
One line gives Codex CLI your shadcn/ui account as tools: 2 endpoints, list components, search components, get component, called with your own connection. No key in the prompt, a receipt for every call, revoke Codex CLI's access alone any time.
Three steps
- Create a free 0n3 account and connect shadcn/ui. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Codex CLI. OpenAI's terminal agent reads 0n3 over Streamable HTTP with a token from your environment.
- Ask Codex CLI: whoami. Then: "Get a component schema in shadcn/ui".
Put the token in your environment
export ON3_TOKEN="<your 0n token>"
Add it to your shell profile so Codex finds it next time.
The line above carries a placeholder; 0n3.app/install mints a real key named for Codex CLI and fills it in.
What Codex CLI can then do in shadcn/ui
List components · List all official shadcn primitives, grouped by purpose1
Get a component schema
GET /r/styles/new-york/{name}.jsonSearch components · Fuzzy search components by name or description0
Fuzzy search components by name or description
Get component · Fetch live component schema (files, deps, source) from the registry0
Fetch live component schema (files, deps, source) from the registry
Install command · Generate `npx shadcn@latest add <name>` install command0
Generate `npx shadcn@latest add <name>` install command
List blocks · List curated block patterns (login, dashboard, pricing, FAQ, etc.)0
List curated block patterns (login, dashboard, pricing, FAQ, etc.)
Recommend · Recommend components for a free-text use case0
Recommend components for a free-text use case
shadcn/ui in other AI clients
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