spa-reader-mcp

MCP server that renders JavaScript SPA pages and extracts Markdown via headless Chromium.

Traditional scrapers fail on SPAs because content is rendered client-side. This tool launches Playwright, waits for JS to finish, then extracts clean Markdown using Readability + Turndown.

Install

npx playwright install chromium

Claude Desktop

{
  "mcpServers": {
    "spa-reader": {
      "command": "npx",
      "args": ["-y", "spa-reader-mcp"]
    }
  }
}

Claude Code

claude mcp add spa-reader -- npx -y spa-reader-mcp

Tools

spa_read

Render a page and extract content as Markdown.

spa_screenshot

Capture a PNG screenshot after JS rendering.

Security

• SSRF protection: blocks private/loopback IPs

• Only http: and https: schemes allowed

• Selector injection prevention

• Content capped at 100KB

Dev

pnpm install && pnpm build
pnpm test

License

MIT