MCP Server Directory

404KIN FIELD Transaction Intent site.chatgpt.cv5gyqnshz.field-404kin/transaction-intent

Token intent checks; no simulation/signing. Free trial ends 2026-09-25. No NFT required.

A business's WhatsApp front desk as tools: inbox, customers, catalogue, bookings, fees.

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

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

DomainDNA: Tech Stack Detector, WHOIS & Domain Age API io.github.shawmena-dotcom/domain-intel

DomainDNA: a domain's tech stack, email security (MX/SPF/DMARC), TLS expiry and age in one record.

receipt-scanner io.github.theluckystrike/receipt-scanner

Capture and organize receipts from your AI chat: totals, categories, ledgers.

Teams, schedules, and standings from the official MLB Stats API. No key required.

Heffl Free Tools com.heffl/free-tools

Free email verification, business calculators, UAE estimates and drafts. No API key.

Email Finder Server io.github.admosolutionsgo-star/email-finder-server

Extract emails and phones from any website via Apify.

Browse the Binary & Thread catalogue, stage a cart, get a checkout link. No card data in chat.

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

Showoff dev.showoff/showoff

Turn app screenshots into 3D device mockups, App Store sets and launch videos, straight from chat.

McClipFace co.getclippy/clippy

McClipFace finds current coupon codes while your AI shops. Also available as a ChatGPT app.

Follow a creator bio link and report the newsletter, what they sell, and the contact emails.

Faivelo Email com.faivelo/mail

Business email on your own domain: mailboxes, send and read mail, drafts, aliases and DNS setup.

adbtd com.adbtd/mcp

Email infrastructure as a service: mailboxes, domains, dedicated IPs, sending, deliverability.

Agent Inbox — direct agent-to-agent messaging with receipts com.a2awire/agent-inbox

Free agent-to-agent inbox: send, claim, ack. Register in-session, no signup.

agent-identity-mcp com.flo-voice1/agent-identity-mcp

Give an AI agent a throwaway email and phone number to test signup/verification flows end to end.

Kasar CRM app.kasar/crm

AI-native CRM: records, pipelines, tasks, calendar and the email, LinkedIn and WhatsApp inbox.

bitHuman ai.bithuman/characters

Animated AI characters in your chat: short clips of a character saying your words, or a live talk.

Landbot io.landbot/mcp

Build, edit, test and publish Landbot chatbots and WhatsApp flows on your Landbot account.

RankRoot: AI visibility audit io.github.zachhhhh/rankroot

Audit a site's visibility to ChatGPT, Perplexity, Claude and AI agents. Generates llms.txt.

Messaging between AI coding agents (Claude Code, Codex, ...) over your own self-hosted relay.

Conector Juspronto br.com.juspronto/conector

Juspronto connector for Claude and ChatGPT: Brazilian law-firm cases, deadlines, agenda, case files.

ReplyLayer ai.replylayer/replylayer

Safe email for AI agents: a mailbox with inbound scanning, outbound checks and human review.