Email that sends, automates and grows
all in one platform.

Transactional email API, SMTP relay, campaigns, automations and a drag-and-drop email builder — on one contact list, with 3,000 free emails every month. Your AI agents can run it too.

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No credit card required 3,000 free emails every month

Send email the AI-enabled way

Works with the agents you already use

Built for developers and their agents

MailCraft has opinions on everything: sends, templates, webhooks and retries. That's thousands of decisions your integration doesn't have to make.

REST API or SMTP relay — swap in one line
MCP server for Claude, Cursor and agents
Webhooks for delivers, opens, clicks & bounces
Open ecosystem of ready-made integrations

Explore the API

curl https://api.mailcraft.host/v1/emails \
  -X POST \
  -H "Authorization: Bearer $MAILCRAFT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "[email protected]",
    "to": ["[email protected]"],
    "subject": "Welcome!",
    "html": "<p>Thanks for signing up.</p>"
  }'

Works from any language — no SDK neededAll SDKs

MailCraft Cloud gets you sending in seconds

No more guessing how many servers you need. Autoscale up under load and down to zero when idle — you only pay for what you use.

Full control via dashboard or API
Instant domains, warm-up and storage

Explore MailCraft Cloud

Hand the busywork to your agents

Connect Claude, Cursor or Codex to the MCP server and let them draft campaigns, build automations and chase down bounces for you.

Scoped keys decide exactly what an agent can do
Sends and deletes are confirmed with you first

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Monitor deliverability in real time

MailCraft watches your sending reputation around the clock and flags a rising bounce rate before it costs you inbox placement.

Real-time bounce and complaint alerts
Let agents fix your sending domain via MCP

Explore deliverability tools

The best partner to any stack

Send from Node, Python, Ruby, PHP or Go — or reach for the SMTP relay from anything else.

users.jsusers.pyusers.rb

Build without limits.
What will you send?

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Why MailCraft

Why teams choose MailCraft

Everything you'd otherwise stitch together from three vendors — on one account, one API and one bill.

Try it free

Pricing that rewards scale

Cost per email goes down as you grow. No per-contact tiers to plan around.

Migrate in minutes

Swap your SMTP host or drop in an SDK — your existing sending code keeps working.

Built for agents

A hosted MCP server lets Claude, Cursor and friends send, debug and automate for you.

Deliverability by default

DKIM, SPF and DMARC on every domain, with bounces and complaints suppressed automatically.

One contact database

Transactional and marketing sends share contacts, properties and suppressions.

SDKs for your stack

Ten official SDKs, a clean REST API, and signed webhooks for every event.

Teams ship email faster with MailCraft

We moved our password resets and receipts over in an afternoon. Swapping the SMTP host was the whole migration.

Lead engineerB2B SaaS, 40 people

Our support agent now resends failed invoices through MCP on its own. Nobody opens a dashboard for that anymore.

Head of supportFintech startup

Having one contact list for product email and newsletters means an unsubscribe is respected everywhere, automatically.

Growth marketerE-commerce brand

Everything email, in one stack

A quick look at the pieces that make up MailCraft — pick one up on its own, or run them all together.

Email API & SMTP

One API for every kind of send

Transactional, marketing or agent-triggered — the same endpoint handles all three, with templates, retries and DKIM/SPF/DMARC built in.

REST API or SMTP relay on the same account
Templates with variables, previews and versioning

Recent sends Live

welcome_v2 → [email protected]41ms

invoice_paid → [email protected]38ms

reset_password → [email protected]44ms

Campaigns & automation

Automations your whole team can read

Build drip sequences and segments in a plain-language editor — no regex, no "ask engineering" ticket.

Visual editor, segments and drip sequences
Shareable previews before anything sends

Onboarding flow

Trigger — new signup

Wait — 2 hours

Send — onboarding_v2

Deliverability & analytics

Know your inbox rate before your customers do

Reputation monitoring runs around the clock and flags a rising bounce rate before it costs you inbox placement.

Real-time bounce and complaint alerts
Dedicated IPs with automatic DMARC repair

99.2%

inbox placement, last 30 days

Ready to send better email?

Create a free account and send your first email — through the API, SMTP, or an MCP-connected AI agent — in minutes.

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Email that sends, automates and grows all in one platform.