"Free tools or resources that do not require an API" matching MCP connectors:
Matching Connector Tools:
Read-only Amazon SES observability: search events, inspect bounces, pull delivery stats.
Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.
Agent-run cold-email infra: 24 MCP tools, live sending, free sandbox. $99/mo, concierge go-live.
Emailable MCP — wraps the Emailable email verification API (emailable.com)
DNS and email security scanner with 80 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.
send-that-email MCP — wraps StupidAPIs (requires X-API-Key)
Let ChatGPT, Claude & Cursor use your Mac: email, calendar, iMessage, Teams, files. Local, free.
Keyless email checks: disposable, role, and free-provider detection, MX, and typo suggestions.
could-have-been-email MCP — wraps StupidAPIs (requires X-API-Key)
Remplir un constat amiable et recevoir le PDF signé par email, directement en conversation.
Mailchimp MCP Pack — manage audiences, campaigns, and members via Mailchimp Marketing API.
Manage Subscribers, Broadcasts, Sequences, Automations, and reporting in Mailrith.
Email compatibility analysis across 15 clients — preview, audit, fix, diff, deliverability.
Give an agent its own inbox: send, receive, and pull signup codes from real email.
Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
Internet identity for AI agents: register or broker domains, email, DNS - pay by card or USDC.
Verify email deliverability & find business emails (single or bulk) via the Verifox API.