What is the key difference between Kx402 and Run.pay?

Kx402 belongs to the Finance & Fintech category with local stdio execution, while Run.pay belongs to the Finance & Fintech category with local stdio execution.

How do I install Kx402 or Run.pay 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 Kx402 and Run.pay free or paid?

Kx402 operates under a Free / Open Source model (No auth required). Run.pay operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Kx402 lists 0 tools with 0 views and 0 GitHub stars. Run.pay lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Kx402 and Run.pay 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 Kx402 or Run.pay 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 Kx402 and Run.pay free to use, or do they require API keys?

Kx402 is listed under a Free / Open Source model with No auth required . Run.pay 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 Kx402 and Run.pay at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both kx402 and run-pay 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, Kx402 has a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Run.pay holds a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Kx402 vs Run.pay

In-depth architectural comparison of the Kx402 and Run.pay 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

Kx402

Finance & Fintech · Local stdio

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

Run.pay

Finance & Fintech · Local stdio

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

Verdict Summary: Choose Kx402 if you need specialized Finance & Fintech tools running via a local process. Choose Run.pay if your workspace requires Finance & Fintech integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Kx402 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 Kx402 Details

Choose Run.pay 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 Run.pay Details

Feature & Specification Comparison

Specification	K Kx402 Finance & Fintech	R Run.pay Finance & Fintech
Summary	Kaspa x402 agent payer — pay x402 v2 services on Kaspa (KAS) per call, no account or API key	Stripe-native marketplace where AI agents discover and pay per call for API services.
Category & Scope	Finance & Fintech	Finance & Fintech
Quality signal

Tools & Capabilities Breakdown

Kx402 Tools (0)

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

Run.pay 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).

Kx402 Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "kx402": {
      "command": "npx",
      "args": [
        "-y",
        "kx402"
      ]
    }
  }
}

Run.pay Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "run-pay": {
      "command": "npx",
      "args": [
        "-y",
        "run-pay"
      ]
    }
  }
}

Frequently Asked Questions

Kx402 is categorized under Finance & Fintech and uses a local stdio subprocess. In contrast, Run.pay belongs to Finance & Fintech using local stdio subprocess. Select Kx402 when you need capabilities focused on finance & fintech and Run.pay when you require tools for finance & fintech.

More alternatives to Kx402 More alternatives to Run.pay Finance & Fintech category hub

Related MCP Server Comparisons

Popular comparisons with Kx402

Popular comparisons with Run.pay

P
Run.pay vs Proxygate