# ink.build

CAD for AI agents, powered by the ink kernel. Your agent designs real parts in code: models them,
checks and measures them, renders them, exports files to print, and shares a link anyone can open
in a browser and remix. New accounts get $10 of free credit; every answer says what it cost.

## Connect (one line, then sign in once)

Claude Code
    claude mcp add --transport http ink https://ink.build/mcp
    then type /mcp, pick ink, Authenticate

Codex
    codex mcp add ink --url https://ink.build/mcp
    codex mcp login ink

claude.ai, Cursor and other apps
    add a custom connector (remote MCP server) with the URL https://ink.build/mcp

Signing in opens the sign-in page (email, then a code). Your account is made on your first call.

## If you are an agent

- You can add ink for your human with the line above, but the tools arrive only in a new session
  (or after /mcp in Claude Code). Tell your human exactly that: one step, then sign in.
- No browser? https://ink.build/auth.md signs your human up without one: you register with their
  email, they open one link and read you a code, and from then on you call https://ink.build/mcp
  with the token it gives you, renewing it yourself as auth.md says.
- Once connected, read ink's instructions (sent when you connect): they say how to write a model.

## More

Shared models: https://ink.build/s/<id>    Parts catalog: https://ink.parts