"Flat" matching MCP servers:

Enables reading replies, bounces, unsubscribes, meetings, interest changes, and LinkedIn replies from the user's own Instantly, Smartlead, HeyReach, and lemlist accounts, returning one flat row per event over a chosen time window. It is read-only and runs the polling work on Apify.

Enables managing multiple Gmail accounts under one OAuth client, with per-account access levels, cross-account search, and read/write operations via stdio or Streamable HTTP.