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Claude Desktop (JSON config via
Free
Server data from the Official MCP Registry
Host static HTML pages, generate PDFs, screenshots, scrape JS sites, run sandboxed JavaScript.
About
Host static HTML pages, generate PDFs, screenshots, scrape JS sites, run sandboxed JavaScript.
Remote endpoints: streamable-http: https://mcp.customjs.space/customjs/mcp
Security Report
9.8
Low Risk9.8Low RiskValid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.
9 tools verified · Open access · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"space-customjs-customjs-mcp": {
"url": "https://mcp.customjs.space/customjs/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
CustomJS MCP Server
A remote Model Context Protocol server that gives AI agents web superpowers — host HTML pages on a public URL, generate PDFs, capture screenshots, scrape sites, and run sandboxed code — using your own CustomJS API key.
| Endpoint | https://mcp.customjs.space/customjs/mcp |
| Transport | Streamable HTTP |
| Auth | x-customjs-api-key header (per-user API key) |
There's nothing to install or self-host — it's a hosted remote MCP server. Bring your CustomJS API key and connect.
Tools
| Tool | What it does |
|---|---|
customjs_host_html_page | Publish static HTML and get a public lp.customjs.space URL (upsert by name) |
customjs_list_html_pages | List your hosted pages (name, url, pageId) |
customjs_delete_html_page | Delete a hosted page by name or pageId |
customjs_html_to_pdf | Convert HTML to PDF (Nunjucks templating) |
customjs_markdown_to_pdf | Convert Markdown to PDF |
customjs_screenshot | Capture a full-page website screenshot |
customjs_scrape_html | Extract fully-rendered HTML (JavaScript-aware) |
customjs_run_code | Run JavaScript in a secure sandbox |
customjs_help | Built-in usage examples (topics: pages, pdf, screenshot, scraping, code) |
Get an API key
Create a free key at https://www.customjs.space/integration/native-api/api-key. Your key is sent per request as the x-customjs-api-key header and is never stored by the connector.
Connect
Claude Code — plugin (recommended)
/plugin marketplace add customjs/claude-plugin
/plugin install customjs@customjs-tools
You'll be prompted only for your API key. (See customjs/claude-plugin.)
Claude Code — without the plugin
claude mcp add --transport http \
--header "x-customjs-api-key: <your-key>" \
customjs https://mcp.customjs.space/customjs/mcp
Claude Desktop (JSON config via mcp-remote)
{
"mcpServers": {
"customjs": {
"command": "npx",
"args": [
"-y", "mcp-remote",
"https://mcp.customjs.space/customjs/mcp",
"--header", "x-customjs-api-key:${CUSTOMJS_API_KEY}"
],
"env": { "CUSTOMJS_API_KEY": "your-key" }
}
}
}
Other MCP clients (Cursor, VS Code, etc.)
Add a remote / HTTP MCP server pointing at https://mcp.customjs.space/customjs/mcp with the header x-customjs-api-key: <your-key>.
Hosting HTML pages
customjs_host_html_page publishes static HTML and returns a public https://lp.customjs.space/<shortId> URL. Hosting again with the same name updates the existing page (upsert by name).
Note: the public URL is served via CloudFront, so immediately after an update it may briefly show the previous content until the cache refreshes.
Official MCP Registry
This server is published to the official MCP Registry as space.customjs/customjs-mcp (DNS-verified on customjs.space) — see server.json. For how it's published and the full directory list, see PUBLISHING.md.
Links
- Website — https://www.customjs.space
- Get an API key — https://www.customjs.space/integration/native-api/api-key
- Claude Code plugin — https://github.com/customjs/claude-plugin
- MCP protocol — https://modelcontextprotocol.io
License
The contents of this repository (documentation and registry manifest) are released under the MIT License. The CustomJS service itself requires a valid API key and is governed by CustomJS's terms of service at https://www.customjs.space.
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