Thread Keeper vs Herald

In-depth architectural comparison of the Thread Keeper and Herald 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?

T

Choose Thread Keeper 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 Thread Keeper Details

Choose Herald when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Herald Details

Feature & Specification Comparison

Specification	T Thread Keeper Developer Tools	Herald Developer Tools
Summary	Multi-agent shared brain across Claude, Codex, Antigravity, Gemini, Copilot, and VS Code.	Stop copy-pasting between Claude Chat and Claude Code.
Category & Scope	Developer Tools	Developer Tools
Quality signal

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": {
    "thread-keeper": {
      "command": "npx",
      "args": [
        "-y",
        "thread-keeper"
      ]
    }
  }
}

{
  "mcpServers": {
    "herald": {
      "url": "https://go.dev"
    }
  }
}

Related MCP Server Comparisons