What is the key difference between Check Digits and Plugin?

Check Digits belongs to the Finance & Fintech category with local stdio execution, while Plugin belongs to the Finance & Fintech category with cloud HTTP/SSE execution.

How do I install Check Digits or Plugin 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 Check Digits and Plugin free or paid?

Check Digits operates under a Free / Open Source model (No auth required). Plugin operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Check Digits lists 0 tools with 0 views and 0 GitHub stars. Plugin lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Check Digits and Plugin 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 Check Digits or Plugin 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 Check Digits and Plugin free to use, or do they require API keys?

Check Digits is listed under a Free / Open Source model with No auth required . Plugin 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 Check Digits and Plugin at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both check-digits and plugin 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, Check Digits has a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Plugin holds a Quality Score of 45 /100 ( Fair ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Check Digits vs Plugin

In-depth architectural comparison of the Check Digits and Plugin 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

Check Digits

Finance & Fintech · Local stdio

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

Plugin

Finance & Fintech · Remote HTTP/SSE

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

Verdict Summary: Choose Check Digits if you need specialized Finance & Fintech tools running via a local process. Choose Plugin if your workspace requires Finance & Fintech integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Check Digits when:

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

Explore Check Digits Details

Choose Plugin when:

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

Explore Plugin Details

Feature & Specification Comparison

Specification	C Check Digits Finance & Fintech	Plugin Finance & Fintech
Summary	Catch a mistyped IBAN, card, barcode, VIN or routing number before it causes a failed payment.	Circulara Observe MCP plugin - meters your AI agents' token spend and carbon, free tier.
Category & Scope	Finance & Fintech	Finance & Fintech
Quality signal

Tools & Capabilities Breakdown

Check Digits Tools (0)

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

Plugin 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).

Check Digits Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "check-digits": {
      "command": "npx",
      "args": [
        "-y",
        "check-digits"
      ]
    }
  }
}

Plugin Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "plugin": {
      "url": "http://127.0.0.1:8787"
    }
  }
}

Frequently Asked Questions

Check Digits is categorized under Finance & Fintech and uses a local stdio subprocess. In contrast, Plugin belongs to Finance & Fintech using remote streaming HTTP/SSE transport. Select Check Digits when you need capabilities focused on finance & fintech and Plugin when you require tools for finance & fintech.

More alternatives to Check Digits More alternatives to Plugin Finance & Fintech category hub