MCP Harbor vs Mastercard Developers MCP

In-depth architectural comparison of the MCP Harbor and Mastercard Developers MCP 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.

Which MCP Server Should You Choose?

M

Choose MCP Harbor 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 MCP Harbor Details

Choose Mastercard Developers MCP 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 Mastercard Developers MCP Details

Feature & Specification Comparison

Specification	M MCP Harbor Developer Tools	Mastercard Developers MCP Developer Tools
Summary	Open Swarm. Streamable HTTP MCP. Search then arrive. Live cap 8. No account.	Access Mastercard Developers APIs, documentation, and API specifications through MCP.
Category & Scope	Developer Tools	Developer Tools

Tools & Capabilities Breakdown

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).

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

{
  "mcpServers": {
    "mastercard-developers-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mastercard/developers-mcp"
      ]
    }
  }
}

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