io.github.manuelinuxkr/substrate-browser MCP Server

io.github.manuelinuxkr/substrate-browser

Repository Registry

What is the io.github.manuelinuxkr/substrate-browser MCP server?

Token-first headless browser for AIs. Extracts a tiny semantic graph, cutting HTML bloat by 95%.

How to install io.github.manuelinuxkr/substrate-browser

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

SUBSTRATE_PROXY
Optional egress proxy URL (http/socks) to route all Chromium traffic through, mitigating SSRF and DNS rebinding risks.
SUBSTRATE_VIEWPORT_WIDTH
Browser viewport width in pixels (Default: 1280)
SUBSTRATE_VIEWPORT_HEIGHT
Browser viewport height in pixels (Default: 800)

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "substrate-browser": {
      "command": "npx",
      "args": [
        "-y",
        "substrate-browser"
      ],
      "env": {
        "SUBSTRATE_PROXY": "<YOUR_SUBSTRATE_PROXY>",
        "SUBSTRATE_VIEWPORT_WIDTH": "<YOUR_SUBSTRATE_VIEWPORT_WIDTH>",
        "SUBSTRATE_VIEWPORT_HEIGHT": "<YOUR_SUBSTRATE_VIEWPORT_HEIGHT>"
      }
    }
  }
}

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