What is the key difference between Mcp X402 Pay and Plugin?

Mcp X402 Pay belongs to the Finance & Fintech category with cloud HTTP/SSE execution, while Plugin belongs to the Finance & Fintech category with cloud HTTP/SSE execution.

How do I install Mcp X402 Pay 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 Mcp X402 Pay and Plugin free or paid?

Mcp X402 Pay 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?

Mcp X402 Pay 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 Mcp X402 Pay 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 Mcp X402 Pay 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 Mcp X402 Pay and Plugin free to use, or do they require API keys?

Mcp X402 Pay 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 Mcp X402 Pay and Plugin at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both mcp-x402-pay 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, Mcp X402 Pay has a Quality Score of 40 /100 ( Fair ) 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

Mcp X402 Pay vs Plugin

In-depth architectural comparison of the Mcp X402 Pay 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

Mcp X402 Pay

Finance & Fintech · Remote HTTP/SSE

Quality: 40/100 (Fair) | Auth: No auth required

Plugin

Finance & Fintech · Remote HTTP/SSE

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

Verdict Summary: Choose Mcp X402 Pay if you need specialized Finance & Fintech tools running via a hosted cloud SSE transport. 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 Mcp X402 Pay 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 Mcp X402 Pay 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	M Mcp X402 Pay Finance & Fintech	Plugin Finance & Fintech
Summary	MCP server that pays x402-gated HTTP endpoints — fetch, and on a 402 authorize, sign, retry	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

Mcp X402 Pay 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).

Mcp X402 Pay Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "mcp-x402-pay": {
      "url": "https://ai.cryptoapis.io/x402/buyer/wallets"
    }
  }
}

Plugin Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

Mcp X402 Pay is categorized under Finance & Fintech and uses a remote streaming HTTP/SSE transport. In contrast, Plugin belongs to Finance & Fintech using remote streaming HTTP/SSE transport. Select Mcp X402 Pay when you need capabilities focused on finance & fintech and Plugin when you require tools for finance & fintech.

More alternatives to Mcp X402 Pay More alternatives to Plugin Finance & Fintech category hub

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