"Email" matching MCP servers:

Enables sending transactional emails with text or HTML body, delivery status, and message ID via Resend. Pay-per-call using x402 micropayments (USDC on Base L2), no API key or signup required.

Enables AI agents to check an email address for syntax validity, MX records, disposable/role/free-provider flags, and a deliverability score/verdict, with per-call USDC payment on Base.

Enables AI agents to verify email addresses with catch-all detection, search existing contacts by company domain, and, when no API key is present, provision a human-approved subscription and retrieve the key after payment.

Non-custodial USDC <-> bank for AI agents. Free quotes; $0.05 USDC per session via x402; 1% commission itemised in every quote. Own funds only. PT + EU/EEA (not UK). 18+.

Travel eSIMs for 193 countries. Stripe + Bitcoin checkout. QR by email in 30s. No API key.

MCP server for the HAUL API marketplace, enabling email and phone verification, credit balance checks, and top-ups.

Enables interaction with the Gumroad v2 API, providing access to all 105 seller operations such as products, sales, payouts, subscribers, email campaigns, licence keys, and webhooks.

MCP server for managing domains, DNS records, email mailboxes, and billing on the adm.tools hosting platform via API.

Lets coding agents like Claude Code, Cursor, and Codex call MONA Pay directly while developing, so they can create VietQR codes and checkout links, look up incoming transactions, link bank accounts via OTP, and configure or test webhooks (plus email and Zalo notifications) without leaving the editor. It also verifies HMAC-SHA256 webhook signatures offline and generates ready-to-use webhook handler snippets and sandbox transactions for end-to-end payment testing.

A unified MCP server that lets AI agents (Claude Code, Codex, Cursor) deploy web apps and VPS instances, provision Supabase-compatible Postgres/Auth/Storage databases, register DNS domains, and send transactional email using a shared MONA Pass identity and VND wallet. It also embeds MONA Pay tooling for VietQR top-ups, checkout, webhooks and reconciliation, so agents can handle payment requests, budget approvals and resource lifecycles end to end.

Enables AI agents to manage MONA Cloud resources such as VPS and databases, use a shared VND wallet, integrate MONA Pay payments, and send transactional email via MONA Mail, all through natural language in MCP-compatible clients.

Gives AI agents a wallet, email, phone number, and instant access to paid MCP tools including web search, image/video/music generation, email, SMS, voice calls, and code execution.

Enables AI clients to read and modify Settle Up group finances — listing groups, checking who owes whom, searching transactions, and recording, editing or deleting shared expenses and debt-settling transfers. Authenticates with Settle Up email and password credentials, with group and member creation optionally unlocked by an extra environment flag.

Lets a user ask what their business is owed, who to chase first, and get a chase email drafted in their own voice, via tools for weekly totals, chase queues, customer history, due-soon invoices and insights. Every tool only reads or returns a draft, so nothing can be sent.

Provides AI assistants with access to PurelyMail's email management API, enabling user, domain, routing, and billing management through natural language.

MCP server that lets AI agents create reviewable physical mail drafts, validate quotes, and pay for postage via MPP or x402 protocols.

Enables AI agents to create and manage kankan.email mailboxes, send and receive emails, renew mailboxes, and handle order payments and status queries through MCP tools.

Provides real validation and live registry lookups for ecommerce and fintech workflows, including EU VAT, EORI, email domain, IBAN, ABA routing, and GTIN checks.

Enables profile-specific sales, purchasing, and accounting workflows—such as quotations, orders, invoices, payments, reconciliation, PDFs, and document email—through MCP while enforcing prepare/preview/approval/confirm safety and native platform permissions. It supports stdio and authenticated Streamable HTTP transports with direct or REST backends.