Capabilities Txt Registry vs Subgraph Registry MCP

In-depth architectural comparison of the Capabilities Txt Registry and Subgraph Registry 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?

Choose Capabilities Txt Registry 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 Capabilities Txt Registry Details

Choose Subgraph Registry 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 Subgraph Registry MCP Details

Feature & Specification Comparison

Specification	Capabilities Txt Registry Developer Tools	Subgraph Registry MCP Developer Tools
Summary	Discover what websites across the agentic web can do — query the capabilities.txt registry.	Discover and query 14,700+ classified subgraphs on The Graph Network
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": {
    "capabilities-txt-registry": {
      "command": "npx",
      "args": [
        "-y",
        "capabilities-txt-registry"
      ]
    }
  }
}

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

Related MCP Server Comparisons