rapier.website valid
Rapier - Markdown Editor & Art
Markdown editor for writing, notes, editable diagrams, drawing and painting with your AI assistant.
- Authority
- 45 reach 0 · trust 5 · quality 25 · freshness 15
- Tier
- listed
- llms.txt
- https://rapier.website/llms.txt
- llms-full.txt
- https://rapier.website/llms-full.txt
- Sections
- 5
- Links
- 32
- Size
- 9430 bytes
- Registered
- 2026-08-07
- Country
- — Publisher location unknown; CDN address excluded
- Country evidence
- No published address evidence collected yet
- Categories
- AI and machine learning
- For agents
- Documentation: developer or product docs worth reading, nothing to call
- First seen
- 2026-10-25T04:54:19.870Z
- Last checked
- 2026-10-25T04:54:20.312Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-25T04:54:19.874Z. Cached copy · Source on rapier.website
# Rapier - Markdown Editor & Art
> Markdown editor for writing, notes, editable diagrams, drawing and painting with your AI assistant.
For people, Rapier is a free online Markdown editor and viewer and a notes app, on Android ([Google Play](https://play.google.com/store/apps/details?id=app.rapier)), on the web at https://rapier.website, on Windows and on Linux. You write on the formatted page or in the Markdown source; there is no split preview. It works offline, with no account, ads or tracking.
Connect an MCP client to `https://mcp.rapier.website/door/mcp` (Streamable HTTP, anonymous, without OAuth) and call `open`. No account needed. Read the `rapier://guide` resources if your host supports MCP resources; otherwise use the [agent guide](https://rapier.website/agents) and the tool schemas. Your host's own tool approval rules still apply.
Rapier is listed in the [MCP Registry](https://registry.modelcontextprotocol.io/v0.1/servers/io.github.jackskip22%2Frapier/versions/latest) and the [GitHub MCP Registry](https://github.com/mcp) as `io.github.jackskip22/rapier`.
## What you can do
- [1. Work with a person in one live document](https://rapier.website/agents): connect to `https://mcp.rapier.website/door/mcp`, then `open`. It returns the revision, the whole text or a document map, and `editor_url`. `read` exact text by heading, block id, lines or query; `edit` unique exact text as one undoable act and keep its `act` id; `undo` keeps later work; `show {target:"comparison"}` shows a diff. The person's typing wins overlapping changes.
- [2. Draw and paint](https://rapier.website/agents): drawings, paintings and watercolors are fenced text with stable ids, edited with `edit`. Read `rapier://guide/draw`, `rapier://guide/water` and `rapier://guide/blocks` first. The person can move the shapes. Painting needs an open full editor, and watercolor needs WebGPU. A painting job that is pending is not done: check `read {state:true}`. Mermaid stays a fenced code block.
- [3. Hand someone one offline HTML file](https://github.com/jackskip22/rapier-plugins/tree/main/npm/rapier-html): `npx rapier-html notes.md` writes `notes.rapier.html`, the editor with the document inside. From code: `await writePage(text, 'notes.md')`. `--compare original.md` opens it on the diff. `--return <url> --return-expires-at <time>`, from `show {target:"return"}`, adds a one-use Send back. When you hand a person a draft, give them this file with Send back: they edit offline and their copy comes back to you once (`read {return_id}`).
- [4. Put the editor or reader in your app](https://github.com/jackskip22/rapier-plugins/tree/main/npm/rapier-embed): install `rapier-embed` and call `Rapier.mount`. Your app owns storage and revisions. `agent: true` gives your own agent the same tools over WebMCP; the reader has no agent tools.
- [5. Keep pictures, drawings and layout in one Markdown file](https://github.com/jackskip22/rapier-plugins/tree/main/npm/rapier-markdown-kit): `rapier-markdown
…Related sites
Similar publisher descriptions and documentation. Similarity does not imply affiliation or equivalent capabilities.
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|---|---|---|---|---|---|---|---|
| dillinger.io | Dillinger — Online Markdown Editor | documentation Developer tools | US | 47 | ✓ | ||
| anotepad.com | aNotepad | transactional Productivity | US | 65 | ✓ | ||
| metool.online | MeTool | transactional Developer tools Media +1 | HK | 48 | ✓ | ✓ | |
| notebin.ca | notebin.ca | interface Productivity AI agents and MCP | CA | 48 | ✓ | ✓ | |
| word2md.com | Word to Markdown | documentation Developer tools Productivity | — | 50 | ✓ | ✓ | |
| froala.com | Froala | transactional Developer tools | — | 65 | ✓ | ✓ | |
| paper.design | Paper | documentation Design AI and machine learning +2 | US | 59 | ✓ | ||
| markdownconverter.pro | MarkdownCo | documentation Developer tools | — | 48 | ✓ | ✓ |
Machine-readable: GET /v1/resolve?q=rapier.website · GET /v1/domain/rapier.website · this page as Accept: application/json or text/markdown · MCP lookup_domain
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