# Rapier - Markdown Editor & Art (remote · mcp.rapier.website)

Markdown editor for writing, notes, editable diagrams, drawing and painting with your AI assistant.

- Trust score: 67/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `mcp.rapier.website`: 67/100 (this document), [markdown](https://verifymcp.io/servers/jackskip22-rapier/door-mcp.md), [page](https://verifymcp.io/servers/jackskip22-rapier/door-mcp)

## Channel facts

- Endpoint: `https://mcp.rapier.website/door/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.2.55`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (edit).
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 44/100
  - 9% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 3299 tokens (~31/item across 106 items; 6 tools + 100 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 73/100
  - Stability observed for 22 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 78/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 33% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).
  - Supports UI / widget rendering.

## Install

### How do I install the Rapier - Markdown Editor & Art MCP server?

Rapier - Markdown Editor & Art is a hosted endpoint at https://mcp.rapier.website/door/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http jackskip22-rapier 'https://mcp.rapier.website/door/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "jackskip22-rapier": {
      "url": "https://mcp.rapier.website/door/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "jackskip22-rapier": {
      "type": "http",
      "url": "https://mcp.rapier.website/door/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.jackskip22-rapier]
url = "https://mcp.rapier.website/door/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "jackskip22-rapier": {
      "type": "remote",
      "url": "https://mcp.rapier.website/door/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add jackskip22-rapier --url 'https://mcp.rapier.website/door/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  jackskip22-rapier:
    url: "https://mcp.rapier.website/door/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "jackskip22-rapier": {
      "Transport": "http",
      "Url": "https://mcp.rapier.website/door/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add jackskip22-rapier -t streamable-http -u 'https://mcp.rapier.website/door/mcp'
```

### Other

```json
{
  "mcpServers": {
    "jackskip22-rapier": {
      "type": "http",
      "url": "https://mcp.rapier.website/door/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 67, 0)

- [functional] Server version: 1.2.55+worker.a777f601-6c5c-40ae-a7c1-8d28c307b44a → 1.2.55+worker.39d5c5cd-7940-4f3d-8ff0-dc829ef72e02

### 2026-11-04 (score 67, +1)

- [functional regression] Resource “rapier-agent-door/references/token-saving.md” was removed
- [functional] Server version: 1.2.51+worker.b95f567c-6623-429d-95b9-2f1dd5db4e71 → 1.2.55+worker.a777f601-6c5c-40ae-a7c1-8d28c307b44a

### 2026-11-02 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 64, 0)

- [functional] Server version: 1.2.48+worker.08723fbc-5607-4a0c-923c-23e20cc58f49 → 1.2.51+worker.b95f567c-6623-429d-95b9-2f1dd5db4e71

### 2026-10-28 (score 64, +1)

- [functional improvement] Schema quality: 36 → 30
- [functional] New resource “rapier-html/cli.mjs”
- [functional] New resource “rapier-html/ledger/document-fonts.mjs”
- [functional] New resource “rapier-html/ledger/math/delimiters.mjs”
- [functional] New resource “rapier-html/ledger/math/markdown-rules.mjs”
- [functional] New resource “rapier-html/ledger/md-comments.mjs”
- [functional] New resource “rapier-html/ledger/md-engine.mjs”
- [functional] New resource “rapier-html/ledger/md-parser-config.mjs”
- [functional] New resource “rapier-html/ledger/md-parser-runtime.mjs”
- [functional] New resource “rapier-html/ledger/vendor/NOTICE.txt”
- [functional] New resource “rapier-html/ledger/vendor/SOURCES.json”
- [functional] New resource “rapier-html/ledger/vendor/entities.mjs”
- [functional] New resource “rapier-html/ledger/vendor/entities/decode-codepoint.mjs”
- [functional] New resource “rapier-html/ledger/vendor/linkify-it.mjs”
- [functional] New resource “rapier-html/ledger/vendor/markdown-it.mjs”
- [functional] New resource “rapier-html/ledger/vendor/markdown-licenses/entities-LICENSE.txt”
- [functional] New resource “rapier-html/ledger/vendor/markdown-licenses/linkify-it-LICENSE.txt”
- [functional] New resource “rapier-html/ledger/vendor/markdown-licenses/markdown-it-LICENSE.txt”
- [functional] New resource “rapier-html/ledger/vendor/markdown-licenses/mdurl-LICENSE.txt”
- [functional] New resource “rapier-html/ledger/vendor/markdown-licenses/punycode.js-LICENSE-MIT.txt”
- [functional] New resource “rapier-html/ledger/vendor/markdown-licenses/uc.micro-LICENSE.txt”
- [functional] New resource “rapier-html/ledger/vendor/markdown-plugins.mjs”
- [functional] New resource “rapier-html/ledger/vendor/markdown-runtime.mjs”
- [functional] New resource “rapier-html/ledger/vendor/mdurl/index.mjs”
- [functional] New resource “rapier-html/ledger/vendor/mdurl/lib/decode.mjs”
- [functional] New resource “rapier-html/ledger/vendor/mdurl/lib/encode.mjs”
- [functional] New resource “rapier-html/ledger/vendor/mdurl/lib/format.mjs”
- [functional] New resource “rapier-html/ledger/vendor/mdurl/lib/parse.mjs”
- [functional] New resource “rapier-html/ledger/vendor/punycode.mjs”
- [functional] New resource “rapier-html/ledger/vendor/uc.micro.mjs”
- [functional] Server version: 1.2.44+worker.d1adeb29-b951-470f-9c98-a764c9c26331 → 1.2.48+worker.08723fbc-5607-4a0c-923c-23e20cc58f49

### 2026-10-27 (score 63, 0)

- [functional] Server version: 1.2.44+worker.07335af4-cda8-4023-aa9c-50d60660944f → 1.2.44+worker.d1adeb29-b951-470f-9c98-a764c9c26331

### 2026-10-26 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (6)

### `open` (~190 tokens)

Open Rapier

Create {text, filename}, resume {document}, open a Note {document, note}, create one {document, note:"new", text, title} (title only there), or import a host file {file}. Returns revision and whole text when it fits a page; otherwise a document map. A browser code goes to show {target:"pair", code}. Share editor_url when available; keep document private.

Input parameters:

- `agent` (string): Your display name on acts; never grants authority.
- `createToken` (string)
- `document` (string)
- `file` (object)
- `filename` (string)
- `note` (string)
- `operation_id` (string)
- `text` (string)
- `title` (string)
- `url` (string): This Door's editor_url, through its authorized connection. Use alone; other URLs are not fetched.

### `read` (~364 tokens)

Read Rapier

Read exact text, a heading/fence map (as:"outline") or a PNG (as:"image") of the page or of the named block, heading or lines; a drawing's block gives it at full detail, even while it is open in Draw. query finds lines here; search lists Notes. Continue next_cursor with cursor alone. Check human context and omissions before editing. state:true reports pending work and the person’s presence; after_revision with wait_ms waits for their next change. guide returns instructions; guide resource URIs are not document IDs.

Input parameters:

- `after_revision` (integer): With wait_ms: return when the revision passes this.
- `agent` (string): Your display name on acts; never grants authority.
- `as` (string)
- `block` (string)
- `comparison` (boolean)
- `cursor` (string)
- `document` (string): From open; not needed with guide.
- `guide` (string): Instructions only; use no other read selectors and no document.
- `heading`
- `history` (boolean)
- `limit` (integer)
- `lines` (array): [first, last], 1-based, inclusive.
- `note` (string)
- `operation_id` (string)
- `preferences` (boolean): Include editor preferences in state; omitted by default.
- `query` (string): Literal text to find in this document.
- `return_id` (string)
- `search` (string): Search the Notes store; "" lists all.
- `since` (string)
- `state` (boolean)
- `version` (integer)
- `versions` (boolean)
- `wait_ms` (integer): Bounded wait (ms) for the next human revision.

### `edit` (~244 tokens)

Edit Rapier

Apply unique exact-text changes atomically as one undoable act (act is its id string), rename with filename, or set Note fields with note. At a moved numeric revision, literal edits apply if untouched since; whole-document replacement needs the current revision. A conflict returns current context; decide afresh. Drawings, painting, Water, comments and HTML objects use fenced text; a rapier-draw diagram stays live for the person, who drags its boxes and retypes its labels in the document; painting needs an open editor and an operation_id, and its result shows the painting.

Input parameters:

- `agent` (string): Your display name on acts; never grants authority.
- `changes` (array)
- `document` (string, required)
- `fields` (object): Note fields, with note and without changes.
- `filename` (string)
- `label` (string): Short description of this edit in history.
- `note` (string)
- `operation_id` (string)
- `revision` (integer|string, required): From your latest read or open; a Note's is its sha256.
- `turn_id` (string): Groups acts for undo {turn_id}.

### `undo` (~90 tokens)

Undo Rapier work

Undo one act or one turn (act or turn_id, not both), preserving later work.

Input parameters:

- `act` (string): From edit; pass act or turn_id.
- `agent` (string): Your display name on acts; never grants authority.
- `document` (string, required)
- `operation_id` (string)
- `turn_id` (string): Undo a whole turn; pass act or turn_id.

### `show` (~399 tokens)

Show or ask in Rapier

Present work or ask the person. An omitted target is inferred from its fields. A 4-letter browser code pairs that editor (target:"pair"); a connected workspace's owner first approves at owner_approval_url, then the person chooses ALLOW. pairing.status: none, code_shown, owner_approval_required, awaiting_allow or paired; only paired confirms pairing. Inspect actual presentation; a request is not proof the person saw it. A comparison leaves source unchanged. Later human navigation wins.

Input parameters:

- `act` (string)
- `after_return_id` (string)
- `agent` (string): Your display name on acts; never grants authority.
- `block` (string)
- `close` (boolean)
- `code` (string): Browser pairing code (target:"pair").
- `compare_id` (string)
- `document` (string, required)
- `heading`
- `lifetime` (integer)
- `name` (string): Comparison title or target:plugin name: math|mermaid|pdf|ocr|letters-field|letters-relief|letters-leaf|letters-arabesque|letters-silhouette|letters-gothic|letters-sugar|letters-illuminated-1490|lette…
- `note` (string)
- `operation_id` (string)
- `preference` (string)
- `question` (string)
- `revision` (integer|string)
- `target` (string)
- `text` (string): Exact passage, or for comparison the whole alternative document.
- `timeout_ms` (integer)
- `turn_id` (string)
- `value` (string|boolean): preferences: the setting; playback: false pauses, true plays.
- `view` (string)
- `wait` (string): ask: message (default) or selection.
- `words` (string): Pointer label.

### `export` (~200 tokens)

Save or export Rapier

to:"file" (default) delivers markdown, html, page, txt, docx or pdf (html is the whole editor with the document inside, editable offline); to:"save" saves to the bound destination; to:"clipboard" copies a passage as plain, markdown, formatted or complete. to:"sync" alone syncs the Notes store and can replace files. On the hosted Door, page, docx and pdf need the person's paired, open editor; a self-hosted server can provide a renderer. Inspect delivery; export never publishes a website.

Input parameters:

- `agent` (string): Your display name on acts; never grants authority.
- `block` (string)
- `compare_id` (string)
- `document` (string, required)
- `format` (string)
- `heading`
- `operation_id` (string)
- `revision` (integer|string)
- `text` (string)
- `to` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/jackskip22-rapier/door-mcp#diagnostics

## Score history

- 2026-11-05: 67
- 2026-11-04: 67
- 2026-11-03: 66
- 2026-11-02: 66
- 2026-11-01: 65
- 2026-10-31: 65
- 2026-10-30: 64
- 2026-10-29: 64
- 2026-10-28: 64
- 2026-10-27: 63
- 2026-10-26: 63
- 2026-10-25: 62
- 2026-10-24: 62
- 2026-10-23: 61
- 2026-10-22: 61
- 2026-10-21: 60
- 2026-10-20: 59
- 2026-10-19: 59
- 2026-10-18: 58
- 2026-10-17: 58
- 2026-10-16: 58
- 2026-10-15: 56
- 2026-10-14: 55

## Common questions

### What is the Rapier - Markdown Editor & Art MCP server?

Rapier - Markdown Editor & Art is an MCP server listed in the public MCP registry as io.github.jackskip22/rapier. Markdown editor for writing, notes, editable diagrams, drawing and painting with your AI assistant. This page covers its hosted endpoint (https://mcp.rapier.website/door/mcp).

### Is the Rapier - Markdown Editor & Art MCP server safe to use?

Rapier - Markdown Editor & Art scores 67 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Rapier - Markdown Editor & Art MCP server expose?

Rapier - Markdown Editor & Art exposes 6 tools: open, read, edit, undo, show, export. Their descriptions and schemas cost roughly 1,487 tokens of context every time the server is loaded.

### Does the Rapier - Markdown Editor & Art MCP server require authentication?

No. We connected to Rapier - Markdown Editor & Art without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Rapier - Markdown Editor & Art MCP server still maintained?

Rapier - Markdown Editor & Art is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://mcp.rapier.website/door/mcp
- Repository: https://github.com/jackskip22/rapier-plugins
- Website: https://rapier.website/agents
- Changelog RSS feed: https://verifymcp.io/servers/jackskip22-rapier/door-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/jackskip22-rapier/door-mcp.json
- HTML version of this page: https://verifymcp.io/servers/jackskip22-rapier/door-mcp