Vlak
REMOTE · VLAK.DEV · SCANNED SEP 22
Accessible React components, tokens, usage guidance, and install commands for product interfaces.
Available components
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 Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- 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 Usability89
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 6608 tokens (~25/item across 256 items; 8 tools + 248 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management40
- Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Vlak MCP server?
Vlak is a hosted endpoint at https://vlak.dev/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 · vlak.dev
claude mcp add --transport http noord-ventures-vlak 'https://vlak.dev/mcp'
{
"mcpServers": {
"noord-ventures-vlak": {
"url": "https://vlak.dev/mcp"
}
}
} {
"servers": {
"noord-ventures-vlak": {
"type": "http",
"url": "https://vlak.dev/mcp"
}
}
} [mcp_servers.noord-ventures-vlak] url = "https://vlak.dev/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"noord-ventures-vlak": {
"type": "remote",
"url": "https://vlak.dev/mcp",
"enabled": true
}
}
} openclaw mcp add noord-ventures-vlak --url 'https://vlak.dev/mcp' --transport streamable-http
mcp_servers:
noord-ventures-vlak:
url: "https://vlak.dev/mcp" {
"McpServers": {
"noord-ventures-vlak": {
"Transport": "http",
"Url": "https://vlak.dev/mcp"
}
}
} assistant mcp add noord-ventures-vlak -t streamable-http -u 'https://vlak.dev/mcp'
{
"mcpServers": {
"noord-ventures-vlak": {
"type": "http",
"url": "https://vlak.dev/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 22 Sept 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.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Sept 26 0
- Server version: 0.4.0 → 0.5.0 functional
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- Tool “get_guide” rewrote its description, which is the text the model reads security
- New resource “android” functional
- New resource “ios” functional
- New tool “get_workflow” functional
- New tool “list_workflows” functional
- 11 Sept 26 0
- Tool “list_components” rewrote its description, which is the text the model reads security
- Stability: unverified → 0.03 ▲ functional
- New resource “android-app-bar” functional
- New resource “android-chip” functional
- New resource “android-fab” functional
- New resource “android-list” functional
- New resource “android-navigation” functional
- New resource “android-search-bar” functional
- New resource “android-sheet” functional
- New resource “android-switch” functional
- New resource “ios-list” functional
- New resource “ios-navigation-bar” functional
- New resource “ios-search-field” functional
- New resource “ios-segmented-control” functional
- New resource “ios-sheet” functional
- New resource “ios-slider” functional
- New resource “ios-switch” functional
- New resource “ios-tab-bar” 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 22 Sept 2026 · Probed https://vlak.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.vlak.dev | CN=YR1,O=Let's Encrypt,C=US | 10 Sept 2026 | 9 Dec 2026 | RSA 2048 | SHA256-RSA | 51aba736155078c631ddba27a078442657d |
| SANs: *.vlak.dev, vlak.dev | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of vlak.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| vlak.dev. | 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 |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
| content-security-policy | default-src 'self'; script-src 'self' 'unsafe-inline' https://static.sketchfab.com https://api.mapbox.com https://www.youtube.com https://player.vimeo.com; style-src 'self' 'unsafe-inline' https://api.mapbox.com; img-src 'self' data: blob: https://upload.wikimedia.org https://is1-ssl.mzstatic.com https://i.ytimg.com https://i.vimeocdn.com; media-src 'self' blob: https://audio-ssl.itunes.apple.com; font-src 'self'; connect-src 'self' https://api.mapbox.com https://events.mapbox.com https://audio-ssl.itunes.apple.com; worker-src 'self' blob:; frame-src 'self' https://sketchfab.com https://*.sketchfab.com https://www.youtube.com https://player.vimeo.com; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; upgrade-insecure-requests |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(self), geolocation=(), interest-cohort=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://vlak.dev/mcp | Verified | 200 | |
| http (plaintext) | http://vlak.dev/mcp | HTTPS enforced | 308 | https://vlak.dev/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 →
get_component Get a Vlak component ~82
The markdown docs page for a component (install paths, example, props tables, keyboard, accessibility), plus its props as JSON, the CSS-only snippet, the React example, its classes, and aliases. Pass the kebab-case name from list_components or search_components.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Component name, e.g. "button" or "dropdown-menu" |
| Name | Type | Req | Description |
|---|---|---|---|
| a11y | array | yes | – |
| aliases | array | yes | – |
| category | string | yes | – |
| classes | array | yes | – |
| cssOnly | boolean | yes | – |
| dependencies | array | yes | – |
| description | string | yes | – |
| docs | string|null | yes | – |
| example | string|null | yes | – |
| import | string|null | yes | – |
| keyboard | array | yes | – |
| name | string | yes | – |
| page | string | yes | – |
| props | array | yes | – |
| reactImport | string | yes | – |
| registryDependencies | array | yes | – |
| registryItem | string | yes | – |
| snippet | string|null | yes | – |
| styles | array | yes | – |
| title | string | yes | – |
| usage | – | yes | – |
No examples provided.
get_guide Get the Vlak guide ~91
Read the general guide first for installation and conventions. Select ios or android for browser React components, exact exports and related interface studies; select ai-index for the AI component catalog and optional engine imports, ai for the runnable assistant and integration recipes, ai-parity for AI Elements functional coverage and differences, or agents for machine-readable surfaces and setup.
| Name | Type | Req | Description |
|---|---|---|---|
| page | string | – | Guide to read; defaults to guide |
| Name | Type | Req | Description |
|---|---|---|---|
| markdown | string | yes | – |
| page | string | yes | – |
No examples provided.
get_install Get install commands ~51
The three ways to install one component (npm package plus import line, Vlak CLI, shadcn CLI) and the CSS-only markup, with its registry dependencies.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Component name |
| Name | Type | Req | Description |
|---|---|---|---|
| cli | string | yes | – |
| cssOnly | object | yes | – |
| name | string | yes | – |
| package | object | yes | – |
| registryDependencies | array | yes | – |
| shadcn | string | yes | – |
No examples provided.
get_tokens Get Vlak tokens ~49
The design tokens page: every CSS custom property with its light and dark value and StyleX alias, plus the raw token groups (type scale, grid, radius, motion, breakpoints, control sizes).
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| markdown | string | yes | – |
| page | string | yes | – |
No examples provided.
get_workflow Get a Vlak workflow ~49
Return one bundled workflow manifest and its source files. Authentication, authorization, storage, and deployment remain host responsibilities described by the manifest.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Workflow ID, for example record-review |
| Name | Type | Req | Description |
|---|---|---|---|
| files | object | yes | – |
| manifest | object | yes | – |
| schemaVersion | number | yes | – |
No examples provided.
list_components List Vlak components ~83
Every component in the catalogue with name, title, description, category, and aliases. Filter by category: actions, forms, navigation, feedback, surfaces, content, icons, charts, patterns, ios, android, ai, health, civic, science, creative, engineering, geospatial, robotics, electronics, microbiology.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Only this category |
| Name | Type | Req | Description |
|---|---|---|---|
| components | array | yes | – |
| count | number | yes | – |
| version | string | yes | – |
No examples provided.
list_workflows List Vlak workflows ~44
List bundled workflow kits and recipes. An optional query matches workflow ID, title, description, components, adapters, and states.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | – | Optional workflow search |
| Name | Type | Req | Description |
|---|---|---|---|
| count | number | yes | – |
| schemaVersion | number | yes | – |
| workflows | array | yes | – |
No examples provided.
search_components Search Vlak components ~95
Find components by name, title, description, alias (AI Elements, shadcn/ui, Radix, and common names such as PromptInput, Chain of thought, Sonner, Drawer, Combobox), or rs-* class. Spacing, punctuation and capitalization do not affect matching. Returns matches ranked by field.
| Name | Type | Req | Description |
|---|---|---|---|
| term | string | yes | Search term, e.g. "menu", "snackbar", "rs-input" |
| Name | Type | Req | Description |
|---|---|---|---|
| hits | array | yes | – |
| term | string | yes | – |
No examples provided.
What is the Vlak MCP server?
Vlak is an MCP server listed in the public MCP registry as io.github.Noord-Ventures/vlak. Accessible React components, tokens, usage guidance, and install commands for product interfaces. This page covers its hosted endpoint (https://vlak.dev/mcp).
Is the Vlak MCP server safe to use?
Vlak scores 82 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 Vlak MCP server expose?
Vlak exposes 8 tools: list_workflows, get_workflow, list_components, get_component, search_components, and 3 more. Their descriptions and schemas cost roughly 544 tokens of context every time the server is loaded.
Does the Vlak MCP server require authentication?
No. We connected to Vlak without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Vlak MCP server still maintained?
Vlak is still listed as active in the MCP registry. We last reached this channel on 22 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.