"Email" matching MCP connectors:

Search travel eSIM plans for 150+ countries and buy via Stripe link; eSIM QR delivered by email.

Print and mail physical letters and postcards to US postal addresses, plus address verification. Upload PDF/HTML/Markdown/text/DOCX/image documents, get a quote, and pay per call with x402 USDC on Base mainnet or credit card. Supports certified/registered mail with proof of delivery and mail-merge templates.

Launch and operate a SaaS from one conversation — domain, hosting, email, Stripe, ads, security.