Inbox

One inbox for your team and your agents

Replies to every email you send, plus mail sent straight to your inbox address, land in threaded conversations. Answer them yourself, or let an AI agent read and reply through the same API.

Benefits

Why Sequenzy for Inbox?

Your Own Inbox Address

Every workspace gets an address like inbox+id@inbound.sequenzy.com, or the same address on your verified domain. Give it to people, services, or other agents.

Replies Land in the Same Thread

Replies to campaigns, sequences, and transactional email arrive with the email that caused them, and follow-ups stay in one conversation.

Built for AI Agents

List unread conversations, read full threads with attachments, reply, forward, and close through the public API, the CLI, or MCP tools.

Reply, Forward, and Attach

Answer from your verified sender profiles, forward a message to a teammate, attach files, and add internal notes the contact never sees.

Developer Experience

Ship emails in minutes, not days

Sequenzy's API is designed for developers who value simplicity. A few lines of code and you're sending transactional emails with enterprise-grade deliverability.

View full docs →
Send with the Sequenzy SDK
npm install sequenzy
import Sequenzy from 'sequenzy';

// Initialize the Sequenzy client
const client = new Sequenzy({ apiKey: 'your-api-key' });

// Send using a template (recommended)
const response = await client.transactional.send({
  to: 'user@example.com',
  slug: 'password-reset',
  variables: {
    RESET_LINK: 'https://app.example.com/reset?token=abc123',
    USER_NAME: 'John',
    EXPIRES_IN: '24 hours'
  }
});

// Or send with custom content (no template needed)
await client.transactional.send({
  to: 'user@example.com',
  subject: 'Password Reset Request',
  body: '<h1>Reset your password</h1><p>Click the link below...</p>',
  variables: {
    USER_NAME: 'John'
  }
});

console.log('Email queued:', response.jobId);

Type-safe SDKs

Full TypeScript support with autocomplete

Automatic retries

Built-in exponential backoff

Webhook events

Real-time delivery notifications

How it works

Get started in minutes

1

Turn on receiving

Switch on Inbox in Settings. Replies route back through a trackable reply-to address, and your inbox address starts accepting mail.

2

Share your inbox address

Use it anywhere you would give out an email address. Mail sent to it opens a new conversation, or joins the thread it answers.

3

Work the conversations

Filter by unread, open, or closed. Reply, forward, add notes, mark read or unread, and close conversations one at a time or in bulk.

4

Hand it to an agent

Connect Claude, Cursor, or another agent through MCP or the CLI so it can triage the inbox and draft or send replies for you.

Use cases

Built for real-world use cases

See how SaaS teams use Sequenzy inbox.

Agent Inbox

Give an AI agent a real address to receive email, then let it triage, answer, and close conversations through MCP or the API.

Example

An agent checks unread conversations every morning, answers common questions, and forwards anything unusual to a person.

Sales Replies

Keep high-intent replies from lifecycle, nurture, or outbound campaigns in one place with the campaign that caused them.

Example

A prospect replies to a demo email and the conversation stays open until sales answers it.

Customer Feedback

Collect real written feedback from campaigns and post-purchase messages instead of losing it in a no-reply mailbox.

Support Handoff

Forward support questions to the right teammate with their attachments, and leave an internal note for context.

Comparison

An inbox built into your email platform

Most platforms track opens and clicks but send replies to a no-reply address or a personal mailbox. Sequenzy keeps them, with an address of their own.

Feature
Sequenzy
Others
Shared inbox for replies
Rare
Inbox address for any inbound email
Rare
API, CLI, and MCP access for agents
Rare
Conversation status and unread state
Limited
Internal notes
Often missing
Subscriber context
Varies

Replies Are Stronger Signals Than Opens

Clicks and opens are useful, but replies show intent. A subscriber who replies may need sales help, support, product guidance, or a human follow-up. The inbox makes those conversations visible.

Message type What you can do
Demo interest Keep it open until sales answers
Support question Forward it to support with attachments
Negative feedback Add an internal note for product
Partnership request Reply from the right sender profile
Anything else Close it, or mark it unread for later

An Address for Everything Else

Your inbox address accepts any email, not just replies. Use it for a contact form, a vendor, an integration that sends email, or another AI agent. Messages that answer an earlier email join its thread.

Keep Context With the Contact

Each conversation links to the subscriber when the sender is one, and to the campaign, sequence, or transactional email that started it. Teammates can see what was sent before they answer.

Let Agents Do the Triage

Everything you can do in the dashboard is available to agents: list_conversations, get_conversation, reply_to_conversation, forward_conversation_message, mark_conversation_unread, and get_inbox_address in MCP, the matching sequenzy inbox commands, and the /v1/conversations API.

Pricing

Simple, transparent pricing

Unlimited contacts on all plans. Only pay for emails you send.

FreeStart free · upgrade anytime

All features included.Pay only for emails you send.

Monthly volume

2.5k emails
MonthlyYearly
$0 per mo

All features included

See all features
  • Unlimited contacts
  • Visual automation builder
  • Transactional email API
  • Team and agent inbox
  • Landing pages
  • Unlimited team members
  • Goal tracking & revenue attribution
  • Unlimited lists and segments
  • Payment integrations (Stripe · Paddle · Lemon Squeezy)
  • API, MCP, and CLI access
  • Unlimited sending domains
  • Deliverability monitoring
  • Send time optimization
  • A/B testing
  • No "Sent with Sequenzy" watermark
  • Personal founder support

FAQ

Frequently Asked Questions

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