"Free web browsers or tools for browsing the internet" matching MCP connectors:

Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links.

Email for AI agents: read, search, send, organize, and schedule across your inboxes.

DMARC analytics for AI assistants — domain health, SPF/DKIM records, compliance stats, anomalies.

Agent-run cold-email infra: 24 MCP tools, live sending, free sandbox. $99/mo, concierge go-live.

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Verify email deliverability & find business emails (single or bulk) via the Verifox API.

Keyless email checks: disposable, role, and free-provider detection, MX, and typo suggestions.

Let ChatGPT, Claude & Cursor use your Mac: email, calendar, iMessage, Teams, files. Local, free.

DNS and email security scanner with 80 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

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

MCP server for Nylas — read email, calendars, events and contacts, and send email or create events.

Email for AI agents: send mail, manage contacts, automations & webhooks. Zero-DNS first send.

Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.

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

Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.

Cameron Rye's blog, projects, resume, and live site stats, plus contact and newsletter tools.

Emailable MCP — wraps the Emailable email verification API (emailable.com)

Email OS for agents - real-inbox search, triage, commitments, and a verifiable BEC hard-stop.

Verify emails — deliverability, disposable/role/free detection, MX validity, domain age.

Manage Microsoft 365 email, calendar, contacts and inbox rules via the Graph API with OAuth 2.0.