VULK

io.github.devjoaocastroPublished by GitHub account devjoaocastrov1.1.1Updated Nov 2, 2026

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

VerifiedStreamable HTTPWeb executableProductivity & Workflow Developer Tools Media & Design

Server details

Identifier: io.github.devjoaocastro/vulk-mcp-server
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Sep 16, 2026

Security note

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Overview

AI-generated overview

Connects an assistant to a VULK account to list projects, start or continue 3D/WebGL site builds from a brief, and check credits and usage.

What you can do: List projects and read a project's details, links and, on paid plans, its source files
Check plan, renewal date, credit balance and 30-day usage, and get a link to the billing page
Start a new project build from a written brief, or send the next instruction or answer to an existing one
Read the persisted state of a running build and stop a build that is still running
When to use it: Useful when you want an assistant to turn a written brief into a VULK 3D/WebGL web project, iterate on an existing project, or check remaining credits and usage before starting a build.
Requirements: Remote Streamable HTTP endpoint at app.vulk.dev/mcp (alias mcp.vulk.dev/mcp), or the legacy local npm package over stdio. The connector uses OAuth 2.0 with PKCE and dynamic client registration; you sign in to app.vulk.dev and approve the connection. A VULK account and plan credits are needed to build.

Before you install

Builds consume the credits included in your plan, and requests are refused when credits run out. The brief text you give the assistant (up to 8,000 characters) is sent to VULK. Write access is a separate permission; without it the write tools are hidden. Connections last up to 90 days and can be revoked in Connected apps. The legacy npm packages use a VULK_API_KEY instead of OAuth and expose different tools.

Installation

In SourceWeft

Open VULK in the dashboard and add it to a workspace.
Connect the required credentials. They are stored privately and never shown on public pages.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.devjoaocastro%2Fvulk-mcp-server/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "vulk": {
      "type": "http",
      "url": "https://mcp.vulk.dev/mcp"
    }
  }
}

README

VULK MCP connector

VULK builds apps and websites from a written brief. This connector lets an AI assistant work with your own VULK account once you have signed in and approved it.

Server URL: https://app.vulk.dev/mcp (alias https://mcp.vulk.dev/mcp)
Transport: remote, Streamable HTTP
Authentication: OAuth 2.0 authorization code with PKCE (S256), dynamic client registration; no API key
Documentation: https://support.vulk.dev/docs/api/mcp
Privacy policy: https://vulk.dev/privacy-policy

What an assistant can do

List your projects, read a project's details and, on a paid plan, its source files.
Show your plan and renewal date, your credit balance and your usage over the last 30 days.
Create a new project, or send the next instruction to an existing one. VULK builds it the way it does in its own editor, using the credits your plan already includes. The assistant can then read the progress, any questions VULK asks, and the link that opens the result in the editor.
Stop a request that is still running.

What it cannot do

It cannot publish a site, buy credits, change your plan or delete a project: there is no tool for any of those. If your plan has no credits left, VULK refuses the request. There is no standalone image, video or audio generation tool; media is only ever generated as part of building a project, as one of its design assets.

Connect

Claude (claude.ai): Customize › Connectors › Add custom connector, name VULK, URL https://app.vulk.dev/mcp.

Claude Code:

Codex CLI:

Cursor: add to mcp.json:

Any other MCP client that supports remote servers with OAuth: add the URL above.

The first time, you are sent to app.vulk.dev to sign in and see what the connection can do before you approve it.

Tools

Tool	Scope	What it does
`list_projects`	`projects.read`	Your projects
`get_project`	`projects.read`	One project's details and links
`get_project_files`	`projects.read`	The file index, or one source file per call (paid plans)
`get_usage`	`usage.read`	Plan, renewal date, credit balance, 30-day usage
`open_billing`	none	Returns a link to your own billing page; changes nothing
`create_project`	`projects.write`	Starts a build of a new project from your brief
`continue_project`	`projects.write`	Sends the next instruction or answer to an existing project
`get_operation`	`projects.read`	Reads the persisted state of a build you started
`stop_operation`	`projects.write`	Asks VULK to stop a build that is still running

Reading and building are separate permissions: a connection that was not granted projects.write never sees the tools that need it, and a call to one anyway returns a tool error that names the missing permission.

Permissions, data and revocation

A connection lasts up to 90 days (refresh tokens rotate on every use) and you can remove it at any time in Settings › Integrations › Connected apps at app.vulk.dev.
The connector reads and writes only inside the signed-in account: its projects, plan, credits and usage. The text you ask the assistant to build is sent to VULK as the project brief (up to 8,000 characters).
Each build request carries a request_id; repeating a request with the same id returns the same receipt instead of building twice.

Legacy local package

The npm packages vulk-mcp-server (1.1.0 and earlier) and @vulk/mcp-server (1.0.0) are separate local command-line packages (they run on your own machine) from before this connector. They authenticate with an API key (VULK_API_KEY) instead of OAuth and expose different tools. This connector does not use them, and their tool names and behaviour are not described here.

License

MIT. See LICENSE.

Source: README.md at commit 8b8c7fd

Tools

This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

v1.1.1LatestSep 16, 2026

Score

85% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts