What is the key difference between Regfish and Unstoppable Domains?

Regfish belongs to the Developer Tools category with cloud HTTP/SSE execution, while Unstoppable Domains belongs to the Developer Tools category with local stdio execution.

How do I install Regfish or Unstoppable Domains 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 Regfish and Unstoppable Domains free or paid?

Regfish operates under a Free / Open Source model (No auth required). Unstoppable Domains operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Regfish lists 0 tools with 0 views and 0 GitHub stars. Unstoppable Domains lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Regfish and Unstoppable Domains 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.

How do I install Regfish or Unstoppable Domains in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Regfish and Unstoppable Domains free to use, or do they require API keys?

Regfish is listed under a Free / Open Source model with No auth required . Unstoppable Domains operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Regfish and Unstoppable Domains at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both regfish and unstoppable-domains as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Regfish has a Quality Score of 42 /100 ( Fair ) with 0 views, 0 installs, and 0 GitHub stars. Unstoppable Domains holds a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Regfish vs Unstoppable Domains

In-depth architectural comparison of the Regfish and Unstoppable Domains 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

Regfish

Developer Tools · Remote HTTP/SSE

Quality: 42/100 (Fair) | Auth: No auth required

Unstoppable Domains

Developer Tools · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Verdict Summary: Choose Regfish if you need specialized Developer Tools tools running via a hosted cloud SSE transport. Choose Unstoppable Domains if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Regfish 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 Regfish Details

Choose Unstoppable Domains 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 Unstoppable Domains Details

Feature & Specification Comparison

Specification	R Regfish Developer Tools	U Unstoppable Domains Developer Tools
Summary	Domains, DNS, DNSSEC and hosting at regfish; diagnose any domain; OAuth or API key.	Domain search, registration, DNS, marketplace, and checkout with your AI agent.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Regfish Tools (0)

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

Unstoppable Domains 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).

Regfish Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "regfish": {
      "url": "https://regfish.de/docs/mcp"
    }
  }
}

Unstoppable Domains Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "unstoppable-domains": {
      "command": "npx",
      "args": [
        "-y",
        "unstoppable-domains"
      ]
    }
  }
}

Frequently Asked Questions

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

More alternatives to Regfish More alternatives to Unstoppable Domains Developer Tools category hub