Install

Prerequisites

• An Anchor Browser account at https://app.anchorbrowser.io
• An API key from https://app.anchorbrowser.io/api-keys
• Node.js 18+ (for the JS SDK) or Python 3.8+ (for the Python SDK)

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Node.js SDK

npm install anchorbrowser

Set your API key as an environment variable:

export ANCHOR_API_KEY="your_api_key_here"

Python SDK

pip install anchorbrowser

Set your API key as an environment variable:

export ANCHOR_API_KEY="your_api_key_here"

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MCP (Model Context Protocol) server

Anchor Browser also ships a hosted MCP server. Add it to your MCP client config (e.g. Claude Desktop's claude_desktop_config.json):

{
  "mcpServers": {
    "anchor-browser": {
      "url": "https://mcp.anchorbrowser.io",
      "headers": {
        "x-anchor-api-key": "your_api_key_here"
      }
    }
  }
}

The open-source MCP variant is also documented at https://docs.anchorbrowser.io under the MCP section.

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No local binary required

Anchor Browser is a cloud service. Nothing runs on your machine except the thin SDK client. The actual Chromium instance runs on Anchor's infrastructure and streams back results over the API.