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Build reliable email delivery into your application in minutes. Ark is the transactional email infrastructure built for the agentic era—designed to be used by both developers and AI systems natively.
Using an AI assistant? Skip the docs—connect your AI directly to our documentation via MCP and get instant, accurate answers.
claude mcp add --transport http ark-docs https://arkhq.io/docs/mcp

Connect Your AI to These Docs

One command. Your AI now has full access to every guide, API reference, and example.

Why Ark?

AI-Native

Native MCP server with 26 tools. Your AI agent can send, track, and manage emails without custom code.

High Deliverability

99.9% deliverability with automatic SPF, DKIM, and DMARC configuration.

Sub-Second Delivery

Average delivery time under 1 second with global infrastructure.

Three Ways to Send

Install the MCP server and let your AI assistant handle email operations:
npx -y ark-email-mcp
Then in Claude, Cursor, or any MCP client:
You: "Send a password reset email to [email protected]"

Claude: I'll send that email now using Ark.

✓ Email sent successfully
  ID: msg_abc123
  Status: sent

MCP Setup Guide

Full setup instructions for Claude, Cursor, and other MCP clients

Core Features

MCP Server for AI Agents

Native Model Context Protocol support with 26 tools. Send emails, check deliveries, manage domains, handle bounces—all from Claude, Cursor, or any MCP client.

Transactional Email

Send password resets, order confirmations, and notifications with confidence. Our API handles templating, tracking, and delivery optimization automatically.

Domain Management

Configure custom sending domains with automated DNS verification. Support for DKIM, SPF, and DMARC authentication.

Webhook Events

Receive real-time HTTP callbacks for delivery events, bounces, complaints, opens, and clicks. Full HMAC signature verification for security.

AI-Readable Documentation

Every documentation page available as clean Markdown. Append .md to any URL for efficient consumption by AI systems and reduced token usage in LLM context windows.

Get Started

1

Choose your integration method

For AI Agents: Install the MCP server
npx -y ark-email-mcp
For Developers: Choose your SDK
pip install ark-email
2

Get your API key

Create an account at arkhq.io and generate an API key from your dashboard.
export ARK_API_KEY="ark_live_..."
3

Send a test email

Use our sandbox domain to send your first email without any domain setup.
4

Configure your domain

Add your sending domain and configure DNS records for production use.