MCP Server Directory

Mock small-business CRM, inbox, calendar, invoicing and phone tools for testing AI agents safely.

agmail dev.shveik/agmail

Email inboxes for agents by the hour: wait for a mail, get the code or link. Pay per call.

Hostlo ai.hostlo/hostlo

Publish and edit static websites on a free subdomain, just by chatting.

agent-exec org.448c.agent-exec/agent-exec

Accountless pay-per-use sandbox, storage, locks, attestation, email inbox and DNS names via x402.

Sickle — every mailbox for your agent app.sickle/mail

Gmail, Outlook, iCloud, Fastmail and any IMAP mailbox for your agent. Scoped OAuth, approved sends.

Let AI agents notify you on Slack, Telegram, email, SMS, or push via an Alphorn webhook.

ScrapeMole Social dev.pages.scrapemole/social

Pay-per-call x402 Telegram channels, Mastodon tags, Bluesky, Hacker News, Lobsters data.

Buttondown MCP by usefulapi io.usefulapi/buttondown

Read Buttondown subscribers, emails, analytics and automations; add subscribers; write email drafts.

Docfarm io.github.lavanry/docfarm

Publish, edit, share and track HTML docs and decks from chat, with view analytics.

CounselAudit com.counselaudit/counselaudit

Legal bill review for in-house teams: audit law firm invoices, decide flags, draft firm letters.

oldweb-diagnostics io.github.palthainon/oldweb-diagnostics

Public DNS, HTTPS and deployment checks, plus offline email header and delivery-log tracing.

Data Breach Notification Deadlines (bulk, Apify) io.github.Nero-Engine/breach-notification-deadlines-full

Bulk breach notice deadline checks: US states, SEC, HIPAA, GDPR, UK, per check billing via Apify.

meeting-notes-transcript-summary io.github.theluckystrike/meeting-notes-transcript-summary

Turn meeting notes or transcripts into a clean structured summary document from chat.

Standards new.standards/standards

CRM, drive, email and meetings in one system of record: search, read and update your records.

Check emails for typos, disposable domains and dead domains. Runs locally, no API key.

Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun io.github.CyberMax-tools/send-email

Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

Emaillistchecker.io Email Verification io.emaillistchecker/email-verification

Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.

memoric io.memoric/memoric

Provenance-first database for teams and agents: every value carries sources, rules and coverage.

Read, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.

SendHQ cc.sendhq/sendhq

Send and receive email from your verified domains; manage domains, templates and deliverability.

UK Business Leads (via Apify) io.github.retracn/uk-business-leads

UK business leads from Google Maps with emails, phones, Companies House directors and outreach.

MobileValidate com.mobilevalidate/mcp

Check phone numbers (WhatsApp, Telegram, carrier, spam reputation) and e-mail addresses.

fnlowl com.fnlowl/fnlowl

Read and manage fnlowl widgets, leads, email sequences and analytics from an AI assistant.

Chatinbox net.chatinbox/chatinbox

Read-only WhatsApp conversation stats for Chatinbox customers. Numbers only, no personal data.