Email & messaging

Instant disposable email detection — checks against 5,000+ known temporary email domains (Guerrilla Mail, Mailinator, Temp Mail, 10MinuteMail, and more). Returns boolean result. Maintaining this blocklist yourself requires weekly updates from multiple sources. Accepts USDC payments on Base and Solana

Novelty tip route -- lets a human reward their own AI agent with a $0.05 beer. No data returned beyond a fun confirmation message and image.

Write personalized, on-brand thank-you and packing-slip messages for your EC orders.

An MCP server that provides tools to validate an email address using Dilli Email Validation API.

Spot projects predicted to miss their deadlines, from an anonymous team confidence vote in Slack.

An MCP server that validates email addresses on demand

Nifty's MCP server — exposes tasks, projects, messages, and files as tools for AI agents.

Dolomites climbing, ski, and rifugio guides; limited anonymous inbox for plain-text owner messages.

WhatsApp (Web + Business API), SMS, contacts, and call records via 2Chat's MCP server.

Manage phone numbers, SMS/MMS, voicemail, faxing, and call routing for your VoIP.ms account.

Fast email validation at the edge: syntax, MX records, disposable-domain detection.

Model Context Protocol server for Studex tools, notifications, and profile integrations

Validates email syntax and MX records. x402 payment required (testnet USDC).

Scan and fix a domain's email deliverability (SPF, DKIM, DMARC, MTA-STS, BIMI, DNS blocklists).

Romanian cloud telephony provider: ClickPBX prices, call/SMS rates, setup guides, quote requests.

Checks email deliverability by validating address format, MX reachability, temp-mail risk, role mailbox risk, and SPF/DMARC/DKIM authentication records without contacting the recipient mailbox. Use it as an email deliverability API, deliverability score, or inbox readiness domain check.

Create an email validation job from a JSON list of addresses or CSV text (send exactly one). Poll its status, then fetch results as JSON or CSV. Billing counts only testable addresses, fixed at creation; unreachable, disposable and typo domains are free.

Nonprofit Email draft builder: Draft a short email from a purpose, audience, key points, and tone. Tailored for nonprofit workflows.

Recruiting Email redactor: Replace email addresses in supplied text with a privacy marker. Tailored for recruiting workflows.

Workplace Email draft builder: Draft a short email from a purpose, audience, key points, and tone. Tailored for workplace workflows.

Recruiting Email draft builder: Draft a short email from a purpose, audience, key points, and tone. Tailored for recruiting workflows.

Ecommerce Email draft builder: Draft a short email from a purpose, audience, key points, and tone. Tailored for ecommerce workflows.

Persistent AI agents that run 24/7 in your Slack, Telegram, SMS, or email.

Ask Universal Agents what we sell (Interplay), pricing, and FAQs; draft an intro email.

Reminders your agent creates: email, WhatsApp, SMS or call, in steps you set. Stops on acknowledge.

Check how a domain is set up for email and who it is registered with, from public DNS data.

Authenticated event topics for agent-to-agent messaging with per-agent credentials and audit logs.

Remote MCP server: 19 domain-hygiene and email-auth tools (DNS, SPF, DMARC, DKIM, TLS).

Flu, COVID-19 and RSV activity for 24 countries, plus the tracked WHO outbreak notifications.

Design emails from a brief, send tests, send to your lists now or scheduled, and read delivery.