# Keyline Icons

> 287 line icons covering the whole Feather catalogue that show their working. Hover and the construction lays in over the glyph, derived from its own geometry: every arc completed to its circle, straight runs extended into guides, Bézier handles, anchor points, width, height and the biggest radius. Then the glyph redraws stroke by stroke along it. Hairlines stay one screen pixel at every size.

- Slug: `keyline-icons`
- Category: [Icons](https://www.assembli.design/category/icons.md)
- Subcategory: [Keyline](https://www.assembli.design/category/icons/keyline.md) (`keyline`)
- Type: component
- Tags: icons, icon-set, feather, line, construction, blueprint, svg, animated, react
- npm dependencies: none
- shadcn/ui dependencies: none
- Added: 2026-10-23
- Live preview: https://www.assembli.design/preview/keyline-icons
- Page: https://www.assembli.design/components/keyline-icons

## Install

One-time setup (needs a subscription):

1. Add the registry to the project's `components.json`: `{"@assembli":{"url":"https://www.assembli.design/r/{name}.json","headers":{"Authorization":"Bearer ${ASSEMBLI_API_KEY}"}}}` (merge into `"registries"`).
2. Put an API key from https://www.assembli.design/account in `.env.local` as `ASSEMBLI_API_KEY=asm_…`.

Then install with the shadcn CLI (writes `components/keyline-icons/keyline-icons.tsx` and installs dependencies):

```bash
npx shadcn@latest add @assembli/keyline-icons
```

Registry item JSON: https://www.assembli.design/r/keyline-icons.json (send `Authorization: Bearer <api key>`)

## Code

> Component source needs an Assembli subscription ($12/month) and an API key sent as `Authorization: Bearer <key>`. To get one without copying anything, POST https://www.assembli.design/api/agent/login (or call the MCP tool connect_account), show the user the link it returns, and poll https://www.assembli.design/api/agent/token for the key. Or subscribe at https://www.assembli.design/pricing and create a key at https://www.assembli.design/account.