ProofGraph (Antigravity MCP) vs Vibe Hnindex

In-depth architectural comparison of the ProofGraph (Antigravity MCP) and Vibe Hnindex 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?

P

Choose ProofGraph (Antigravity 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 ProofGraph (Antigravity MCP) Details

Choose Vibe Hnindex 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 Vibe Hnindex Details

Feature & Specification Comparison

Specification	P ProofGraph (Antigravity MCP) Developer Tools	Vibe Hnindex Developer Tools
Summary	Evidence-first entity and knowledge graph MCP server for AI agents to verify claims.	Index source code into a local knowledge base, search with keyword + semantic + hybrid modes.
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": {
    "proofgraph-antigravity-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "proofgraph-antigravity-mcp"
      ]
    }
  }
}

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

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