"Apple Pay" matching MCP connectors:

Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.

Internet identity for AI agents: register or broker domains, email, DNS - pay by card or USDC.

Email verification for AI agents — verify, clean & validate emails; self-onboard + crypto pay

Send-decision email verification: agents get send/review/avoid with evidence, pay-per-call via x402.