AI Plugin IndexMCP Registry Server vs Harness
MCP Registry Server and Harness are both ai and llm tools MCP servers. Harness scores higher (95 vs 94 out of 100). MCP Registry Server has more GitHub stars (7.4k), and Harness was updated more recently (4 days ago). The table compares them side by side.
| MCP Registry Server | Harness | |
|---|---|---|
| Score | 94 / 100 | 95 / 100 |
| What it does | Publish and discover MCP servers via the official MCP Registry. Powered by HAPI MCP server. | Start Claude Code and Codex agents the person can watch, wait for them and read their answers. |
| Publisher | Verified: mcp.com.ai | Verified: harness.autonomous.ai |
| Grades | Maintenance A, Licence F, Quality A | Maintenance A, Licence A, Quality A |
| npm downloads a week | Not on npm | Not on npm |
| Runs | Remote | Local |
| Works with | Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, VS Code, Windsurf, ChatGPT | Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, VS Code, Windsurf |
| GitHub stars | 7,381 | 1,320 |
| Last commit | 14 Oct 2026 | 19 Oct 2026 |
| Licence | NOASSERTION | MIT |
| Listed since | 19 Oct 2026 | 19 Oct 2026 |
| Install MCP Registry Server | Install Harness |
Questions
Is MCP Registry Server or Harness more popular?
MCP Registry Server has more GitHub stars: 7,381.
Can I use MCP Registry Server and Harness together?
Yes. AI assistants can load several MCP servers at once. Install both and the assistant picks the right one for each task.