VULK MCP Server

VULK's MCP connector lets AI assistants generate, edit, inspect, and deploy VULK projects from chat.

Positioning: prompt-to-immersive-site. Agents can ask VULK for 3D/WebGL, cinematic, video-rich, moodboard-driven, full-stack web projects and get back preview/editor/deploy URLs.

This package is the local stdio MCP server. The public remote connector uses the same tool surface at https://mcp.vulk.dev/mcp over HTTPS Streamable HTTP with OAuth 2.0 / PKCE.

What VULK Does

• Creates production VULK projects from natural-language briefs.
• Generates immersive web experiences using VULK's internal generation pipeline.
• Edits existing projects from chat instructions.
• Lists and inspects projects owned by the authenticated account.
• Returns file manifests safely by default; content must be explicitly requested.
• Deploys eligible projects to production.

The connector does not expose provider API keys, internal prompts, customer data outside the authenticated account, or standalone raw media-generation tools.

Quick Setup

Remote connector URL for Claude/Codex/agents that support remote MCP:

https://mcp.vulk.dev/mcp

The remote endpoint discovers OAuth through:

• https://mcp.vulk.dev/.well-known/oauth-protected-resource/mcp
• https://vulk.dev/.well-known/oauth-authorization-server

Local stdio setup:

Get an API key at https://vulk.dev/settings/api-keys.

{
  "mcpServers": {
    "vulk": {
      "command": "npx",
      "args": ["-y", "vulk-mcp-server"],
      "env": {
        "VULK_API_KEY": "vk_sk_your_key_here"
      }
    }
  }
}

For public/review environments, disable legacy aliases so reviewers see only the clean tool names:

{
  "env": {
    "VULK_API_KEY": "vk_sk_your_key_here",
    "VULK_ENABLE_LEGACY_TOOLS": "false"
  }
}

Primary Tools

• create_visual_brief - turn a raw idea, visual reference, URL, Figma, screenshot, video reference, or moodboard into a VULK-ready production brief. Read-only.
• generate_immersive_site - generate a 3D/WebGL, cinematic, video-rich, or moodboard-driven VULK web project. Creates a project and may consume credits.
• create_project - generate a general VULK project from a prompt.
• edit_project - apply a natural-language change to an existing VULK project.
• list_projects - list projects owned by the authenticated account.
• get_project - get project metadata plus preview/editor URLs.
• get_project_files - get a project file manifest; content is opt-in, redacted, and size-limited.
• deploy_project - deploy a project to production.
• list_models - list available VULK models for the account.
• get_usage - inspect credits, usage, and rate limits.
• subscribe - return a VULK pricing URL.

Legacy aliases (generate, edit, list, get, files, deploy, models, usage) remain enabled by default for existing local users. Set VULK_ENABLE_LEGACY_TOOLS=false for the public connector surface.

Security Defaults

• All tools call VULK first-party APIs only.
• Authentication uses VULK_API_KEY for this local package. The remote MCP uses OAuth 2.0 with PKCE, dynamic client registration, scoped opaque access tokens, and refresh-token rotation.
• Tool annotations mark read-only, write, and destructive operations for compatible clients.
• get_project_files returns only a manifest unless includeContent=true.
• Sensitive-looking files such as .env, private keys, credentials, service-account files, .npmrc, and certificate/key files are redacted.
• File content responses are capped to 50 KB by default and 200 KB maximum.
• Edit context sent back to VULK is capped by VULK_MCP_MAX_EDIT_CONTEXT_BYTES and excludes sensitive-looking paths.
• The backend validates project ownership before generation or file mutation.

Environment Variables

| Variable | Required | Default | Description | | --- | --- | --- | --- | | VULK_API_KEY | Yes | - | VULK API key starting with vk_sk_. | | VULK_API_BASE | No | https://vulk.dev | VULK API base URL. | | VULK_ENABLE_LEGACY_TOOLS | No | true | Set to false for the public review surface. | | VULK_MCP_MAX_EDIT_CONTEXT_BYTES | No | 2000000 | Max safe file context sent for edits. |

Distribution Targets

• Local MCP package: npx -y vulk-mcp-server
• Remote MCP: https://mcp.vulk.dev/mcp
• Official MCP Registry: server.json
• Smithery: smithery.yaml
• Glama: glama.json
• Gemini CLI: gemini-extension.json
• Codex plugin bundle: codex-plugin/
• Claude Connectors Directory: use the remote OAuth MCP build described in docs/CLAUDE_CONNECTOR_SUBMISSION.md
• Codex extensions/plugins: use the plugin and marketplace plan in docs/UNIVERSAL_AGENT_CONNECTOR.md

Development

npm install
npm run build
VULK_API_KEY=vk_sk_... node dist/index.js

License

MIT