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VULK MCP Server

by devjoaocastro Your server? Claim it
answering

VULK is answering right now. Last checked 5 min ago. 34 installs a week from npm. Last commit 26 May 2026.

Generate, edit, and deploy immersive 3D/WebGL web projects from any MCP assistant.

Installs per day peak 28 · avg 10 · -42% w/w
a month agotoday
Uptime history 51 days of history · worst day 0%
51 days agonow
97.8%
Uptime 24h
89 of 91 checks
Tools
hidden behind auth
263 ms
Response time
average over 24h
34
Installs / week
npm and PyPI

What the code does

We read the source, 9 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Touches key and credential files src/index.ts:864
    /(^|\/)(id_rsa|id_ed25519|known_hosts|authorized_keys)$/.test(normalized) ||

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

run in your terminal
claude mcp add vulk-mcp-server --transport http https://mcp.vulk.dev/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "vulk-mcp-server": {
      "url": "https://mcp.vulk.dev/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.vulk-mcp-server]
url = "https://mcp.vulk.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "vulk-mcp-server": {
      "url": "https://mcp.vulk.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "vulk-mcp-server": {
      "url": "https://mcp.vulk.dev/mcp"
    }
  }
}

This one needs environment variables set before it will start: VULK_API_KEY (Your VULK API key (get at vulk.dev/settings/api-keys)). The author declared them in the registry entry; get the values from the project itself.

This endpoint answered with an authorization challenge. The server is running, but you need an API key from its owner to call it.

Endpoints

URLTransportStateLatencyChecked
https://mcp.vulk.dev/mcp streamable-http needs key 282 ms 5 min ago

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VULK — questions

Answers built from our own checks of this server.

Why is there no tool list for VULK?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 97.8% of checks in the last 24 hours got a reply.
Is VULK working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 89 of 91 checks got a reply (97.8%), average response time 263 ms. The bar chart above shows every period we have measured.
How do I connect VULK?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own key: it refuses anonymous clients.
Does VULK need an API key?
Yes. Every time we knock, VULK answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.
How fast is VULK?
It answers our handshake in 263 ms on average, which is faster than 59% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use VULK?
The npm package vulk-mcp-server was installed 34 times in the last week. Week over week that is -42%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is VULK open source?
Yes — it is published under the MIT licence, written in JavaScript and 7 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.