Rapier - Markdown Editor & Art
REMOTE · MCP.RAPIER.WEBSITE
Markdown editor for writing, notes, editable diagrams, drawing and painting with your AI assistant.
Available components
Last scanned (1 day ago)
Scores higher than 53% of remote servers
Reachable. Last reached 4 Nov 2026.
Category Productivity and Notes
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. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (edit). See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability44
- 9% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Partial
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 3299 tokens (~31/item across 106 items; 6 tools + 100 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management70
- Stability observed for 21 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage78
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 33% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
- Supports UI / widget rendering.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
- 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 functional
- 2 Nov 26 +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.
- 31 Oct 26 +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.
- 29 Oct 26 0
- Server version: 1.2.48+worker.08723fbc-5607-4a0c-923c-23e20cc58f49 → 1.2.51+worker.b95f567c-6623-429d-95b9-2f1dd5db4e71 functional
- 28 Oct 26 +1
- 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 functional
- 27 Oct 26 0
- Server version: 1.2.44+worker.07335af4-cda8-4023-aa9c-50d60660944f → 1.2.44+worker.d1adeb29-b951-470f-9c98-a764c9c26331 functional
- 26 Oct 26 +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.
- 25 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “edit” rewrote its description, which is the text the model reads security
- Tool “export” rewrote its description, which is the text the model reads security
- Tool “read” rewrote its description, which is the text the model reads security
- Tool “export” is now declared destructive security
- Tool “show” is now declared destructive security
- New resource “rapier-html/ledger/md-assets.mjs” functional
- New resource “rapier-html/ledger/will.mjs” functional
- New resource “rapier-html/ledger/word-sidecar.mjs” functional
- Server version: 1.2.43+worker.13efae8a-e33e-4cae-aefe-8bcf31eb0e0f → 1.2.44+worker.07335af4-cda8-4023-aa9c-50d60660944f functional
- Server version: 1.2.42+worker.604105e9-146f-4078-b815-5158e27343e1 → 1.2.43+worker.13efae8a-e33e-4cae-aefe-8bcf31eb0e0f functional
- Server version: 1.2.34+worker.9aacedfa-6818-4683-a44f-1cda956a088c → 1.2.42+worker.604105e9-146f-4078-b815-5158e27343e1 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Probed https://mcp.rapier.website/door/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=rapier.website | CN=WE1,O=Google Trust Services,C=US | 28 Sept 2026 | 27 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 3f6ecd021f1af4c61368690d1e5aa109 |
| SANs: rapier.website, mcp.rapier.website, *.mcp.rapier.website | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.rapier.website. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| website. | present | 26175 | 13 | Verified |
| rapier.website. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| x-content-type-options | nosniff |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.rapier.website/door/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.rapier.website/door/mcp | HTTPS enforced | 301 | https://mcp.rapier.website/door/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
edit Edit Rapier ~244
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.
| Name | Type | Req | Description |
|---|---|---|---|
| agent | string | – | Your display name on acts; never grants authority. |
| changes | array | – | – |
| document | string | yes | – |
| 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 | yes | From your latest read or open; a Note's is its sha256. |
| turn_id | string | – | Groups acts for undo {turn_id}. |
No output schema declared.
No examples provided.
export Save or export Rapier ~200
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.
| Name | Type | Req | Description |
|---|---|---|---|
| agent | string | – | Your display name on acts; never grants authority. |
| block | string | – | – |
| compare_id | string | – | – |
| document | string | yes | – |
| format | string | – | – |
| heading | – | – | – |
| operation_id | string | – | – |
| revision | integer|string | – | – |
| text | string | – | – |
| to | string | – | – |
No output schema declared.
No examples provided.
open Open Rapier ~190
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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. |
No output schema declared.
No examples provided.
read Read Rapier ~364
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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. |
No output schema declared.
No examples provided.
show Show or ask in Rapier ~399
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | – |
| 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. |
No output schema declared.
No examples provided.
undo Undo Rapier work ~90
Undo one act or one turn (act or turn_id, not both), preserving later work.
| Name | Type | Req | Description |
|---|---|---|---|
| act | string | – | From edit; pass act or turn_id. |
| agent | string | – | Your display name on acts; never grants authority. |
| document | string | yes | – |
| operation_id | string | – | – |
| turn_id | string | – | Undo a whole turn; pass act or turn_id. |
No output schema declared.
No examples provided.
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.
remote · mcp.rapier.website
claude mcp add --transport http jackskip22-rapier 'https://mcp.rapier.website/door/mcp'
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 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.