What is the key difference between Agent Browser and PolyBridge?

Agent Browser belongs to the Developer Tools category with local stdio execution, while PolyBridge belongs to the Developer Tools category with cloud HTTP/SSE execution.

How do I install Agent Browser or PolyBridge in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Agent Browser and PolyBridge free or paid?

Agent Browser operates under a Free / Open Source model (No auth required). PolyBridge operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Agent Browser lists 0 tools with 0 views and 4 GitHub stars. PolyBridge lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Agent Browser and PolyBridge together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Agent Browser vs PolyBridge

In-depth architectural comparison of the Agent Browser and PolyBridge MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Agent Browser

Developer Tools · Local stdio

Quality: 45/100 (Fair) | Auth: No auth required

PolyBridge

Developer Tools · Remote HTTP/SSE

Quality: 30/100 (Emerging) | Auth: No auth required

Verdict Summary: Choose Agent Browser if you need specialized Developer Tools tools running via a local process. Choose PolyBridge if your workspace requires Developer Tools integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Agent Browser when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Agent Browser Details

Choose PolyBridge when:

You need dedicated capabilities in the Developer Tools domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore PolyBridge Details

Feature & Specification Comparison

Specification	A Agent Browser Developer Tools	P PolyBridge Developer Tools
Summary	Self-hosted Chrome for AI agents, with a live noVNC view a human can take over.	Calibrated probabilistic foresight for AI agents, powered by live prediction-market signal.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Agent Browser Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

PolyBridge Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Agent Browser Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "agent-browser": {
      "command": "npx",
      "args": [
        "-y",
        "aether-browser"
      ]
    }
  }
}

PolyBridge Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "polybridge-2": {
      "url": "https://polybridge.ai/api/mcp"
    }
  }
}

Frequently Asked Questions

Agent Browser is categorized under Developer Tools and uses a local stdio subprocess. In contrast, PolyBridge belongs to Developer Tools using remote streaming HTTP/SSE transport. Select Agent Browser when you need capabilities focused on developer tools and PolyBridge when you require tools for developer tools.

More alternatives to Agent Browser More alternatives to PolyBridge Developer Tools category hub