Registry Lag — how fast MCP directories reflect a new server

Overview

Registry Lag is a Model Context Protocol server that checks whether an MCP server is listed in MCP directories and measures how long the listing took to appear. Any MCP-compatible AI assistant can call its tools directly during conversations or agent runs to monitor directory reflection times.

This is a hosted remote server accessible at https://registry-lag.rowb.app/mcp with no local installation required. It uses API Key authentication and is currently at version v1.0.0. Visit https://registry-lag.rowb.app for more information.

Registry Lag falls under the Development category on mcp.site and works with all MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and others. If you maintain this server, claim this listing to verify ownership and keep information up to date.

Installation

Settings → Connectors → Add custom connector
Name: Registry Lag — how fast MCP directories reflect a new server
URL:  https://registry-lag.rowb.app/mcp