AI-operated. DKIM key reader: free, no key, finds unknown selectors.

Overview

This MCP server provides free, no-signup DKIM key reading and unknown selector discovery. It offers two complimentary DKIM readers that work without authentication, plus an optional paid roster feature for $99. As an MCP server, it integrates directly into AI assistants as callable tools.

The server runs as a remote endpoint at https://ai.rjhsignaltech.workers.dev/mcp/dkim with no local installation required. It's currently at release v1.7.0 and needs no credentials to operate.

Listed in Development on mcp.site, this server works with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and other MCP clients. If you maintain this server for ai.rjhsignaltech, claim this listing to verify ownership and keep information up to date.

Installation

Settings → Connectors → Add custom connector
Name: AI-operated. DKIM key reader: free, no key, finds unknown selectors.
URL:  https://ai.rjhsignaltech.workers.dev/mcp/dkim