Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.
B2B sales intelligence and prospecting with Apollo.io. Search for prospects, enrich contacts with emails and phone numbers, discover companies by industry and size, and access Apollo's database of 275M+ contacts.
@deliveriq/mcp — email-deliverability tools for AI agents. 12 tools: single + batch verification, email finder, DNSBL across 50 zones, SPF/DKIM/DMARC/MTA-STS/BIMI infrastructure analysis, spam-trap scoring on 13 weighted signals, composite domain trust report, account credits. 5-stage / 21-check pipeline under the hood. Free tier, no card. Install: npx -y @deliveriq/mcp.