Magpie CRM is an open-source Apollo alternative combining prospecting, CRM and email outreach. Search B2B companies and people, find and verify emails, and save them to lists. Build campaigns in a drag-and-drop editor and send from your own verified domains, with automatic bounce handling and one-click unsubscribe. An AI copilot and MCP support let Claude, Cursor and more do the work. Use the fully managed hosted version or self-host free under AGPL-3.0.