Receive email as a webhook. Send with one API. Manage unlimited domains. Built for multi-product SaaS teams and the AI agents they build.
Point MX records at MailKite. Every incoming message is parsed into clean JSON and POSTed to your endpoint. No mail server, no MIME parsing.
Inbound email APISend email with one API call. SDKs for every language. Deliverability built in — DKIM, SPF, feedback loops handled for you.
Send email with one APIAdd as many domains as you need. Each domain gets its own inbound routes, webhook targets, and sending identity. No per-domain charges.
Free transactional emailGive every agent its own inbox via MCP. Agents receive, parse, and reply to email — with human supervision from the dashboard.
MCP-native email for agentsFor apps that speak SMTP: relay outbound mail through MailKite with full DKIM signing and deliverability tracking.
SMTP relayRead your inbox in your framework. MIT-licensed webmail client drops into Next.js, Astro, Nuxt, or SvelteKit.
Webmail for your domainInstant API key — no waiting, no approval. Start building in under 5 minutes.
Point MX records at MailKite. We verify DNS and activate the domain automatically.
Register a webhook for inbound, or fire the send API for outbound. Clean JSON in, clean API out.
Ship 10+ domains without rebuilding email plumbing per product. One platform, one API key, unlimited domains.
Reply-by-email, support inboxes, inbound parsing, verification codes — clean JSON webhooks, not a wiring project.
Agents with their own inbox, two-way threads, and MCP integration. Human supervision built in.
MailKite is an inbound-first email platform for developers. Receive email as a webhook, send with one API, manage unlimited domains. Built for teams shipping multiple products and the AI agents they build.
SendGrid and Postmark are send-first platforms with inbound bolted on. MailKite is inbound-first: every incoming email becomes a clean JSON webhook. We also include unlimited free domains, graceful overage, and MCP-native agent support.
Yes. MailKite is free on unlimited domains. No credit card required. You pay only when you need higher volume or premium features.
Official SDKs for Node.js, Python, Go, Ruby, PHP, Java, .NET, and Rust. Plus an MCP server for AI agents and an SMTP relay for legacy apps.
Unlimited domains, free. No credit card required.