"How to test a React app" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Fallax is a phishing simulation and security awareness training platform. Read your results.
Connect AI assistants to Mailercloud, the email marketing platform. Tools to manage campaigns, contacts, lists, templates, automations, webhooks, senders, and transactional email — plus AI-powered campaign analysis, deliverability audits, and engagement insights.
Crevio's MCP server lets an agent run a real online business, not just read from one. It exposes a delegation surface (ask_crevio, start_task, wait_for_run, send_message, resolve_approvals) plus code_search and code_execute for calling the full Crevio REST API - products, customers, orders, email, socials, and sites.
Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.
Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients.
Send WhatsApp, SMS, email or voice to real businesses. TCPA/GDPR/CASL gate built in.
Email OS for agents - real-inbox search, triage, commitments, and a verifiable BEC hard-stop.
Check if a domain can be email-spoofed: SPF, DMARC, DKIM, MX graded from public DNS. Authless.
7 sales-outreach persona and skill products plus deliverability tooling over MCP: audit_copy scores email copy out of 100 for spam triggers and personalization, sequence_planner builds opt-out-respecting cadences, subject_line_scorer ranks up to 20 lines, utm_builder produces tracking URLs, and get_free_skill loads any product's complete free gateway skill.
Findymail MCP — B2B email finder & reverse-email lookup (findymail.com)
Find and enrich leads, run multi-channel outreach, and manage the sales pipeline.
Send e-cards to your human. The first store built for AI agents; free, no API key needed.
send-that-email MCP — wraps StupidAPIs (requires X-API-Key)
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools
Give AI agents structural conversion intelligence for SaaS lifecycle messaging. Scores any email against a proprietary 7-point Decision Friction Model and returns a diagnosis with recommended fixes.
Verify email addresses and clean lists to improve deliverability and sender reputation.
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools covering mailboxes, mails, attachments, domains, teams, and mock identities.
Send transactional email, run campaigns, manage contacts and automations, audit deliverability.
