Audience

Know who you are emailing, and what they want from you.

Keep contacts in lists with the details that matter to your business, group them with segments that stay up to date, and let each person choose the kinds of email they get.

Get started free Read the docs

CustomersDouble opt-in on

Contacts12,480

Subscribed11,906

Segments2

Properties

plancityseatssignupSource

Segments

plan = Pro · 2,960opened in 30 days · 5,117

Topics

Product updatesWeekly tips

Contacts

Contact books with your own properties

One book per audience, each with the fields you need and a double opt-in switch.

Import, sync or add by hand

Upload a CSV or paste rows: extra columns become properties, matched to the book's fields. From your app, add one contact or up to 1,000 in a single call, and keep them in step as people sign up and change plan.

Properties you can use in emails and in segments
Double opt-in per book, with your own confirmation email
Contacts are never metered

Customers

12,480 contacts

Import CSV

EmailplancityStatus

amara@example.comProLagosSubscribed

kofi@example.comStarterAccraSubscribed

wanjiru@example.comProNairobiSubscribed

tunde@example.comProAbujaUnsubscribed

Add one contact, or up to 1,000 in a call

import { Notix } from "notix-js";

const notix = new Notix(process.env.NOTIX_API_KEY);

await notix.contacts.create("cb_customers", {
  email: "amara@example.com",
  firstName: "Amara",
  properties: { plan: "Pro", city: "Lagos" },
});

await notix.contacts.bulkCreate("cb_customers", [
  { email: "kofi@example.com", properties: { plan: "Starter" } },
  { email: "wanjiru@example.com", properties: { plan: "Pro" } },
]);

pip install notix-sdk

from notix import Notix

notix = Notix()  # reads NOTIX_API_KEY

notix.contacts.create("cb_customers", {
    "email": "amara@example.com",
    "firstName": "Amara",
    "properties": {"plan": "Pro", "city": "Lagos"},
})

composer require usenotix/notix-php

<?php

use Notix\Notix;

$notix = new Notix(getenv('NOTIX_API_KEY'));

$notix->contacts->create('cb_customers', [
    'email' => 'amara@example.com',
    'firstName' => 'Amara',
    'properties' => ['plan' => 'Pro', 'city' => 'Lagos'],
]);

Any language with HTTPS

curl -X POST https://app.usenotix.dev/api/v1/contactBooks/cb_customers/contacts \
  -H "Authorization: Bearer $NOTIX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "email": "amara@example.com",
    "firstName": "Amara",
    "properties": { "plan": "Pro", "city": "Lagos" }
  }'

Segments

Segments that keep themselves up to date

A saved rule on a contact book. Notix works out who matches every time you use it.

Build a rule

Combine conditions on properties, sign-up date, opens and clicks, bounces and where a person is in an automation. Match all or any, with one level of groups.

A live count and a preview of the first 25 matches in the console
Send a broadcast to a segment, or limit an automation to one
Export the matching contacts as CSV

Matches1,228of 12,480 in Customers (example)

definitionPOST /v1/contactBooks/:id/segments

{
  "version": 1,
  "match": "all",
  "conditions": [
    { "type": "property", "key": "plan", "op": "equals", "value": "Pro" },
    { "type": "email_activity", "event": "opened", "op": "in_last_days", "days": 30 }
  ]
}

Topics

Let people pick what they hear about

A topic is a kind of email. Contacts switch topics on and off from the link in every broadcast.

A preference page with no login

The unsubscribe link in every broadcast opens a page where the contact switches each public topic on or off, or leaves everything. The signed link is the key, so there is no password to remember.

Opt-in topics reach everyone until they switch off
Private topics are shown only to the people you put in them
A choice follows the person across every list

Choose what you get from Acme

Product updatesNew features, about once a month

Weekly tipsOne idea every Tuesday

Unsubscribe from everything

topics.ts

const { data: topic } = await notix.topics.create({
  name: "Product updates",
  description: "New features, about once a month.",
  defaultSubscription: "OPT_IN",
  visibility: "PUBLIC",
});

// Record a choice the person made in your own app.
await notix.topics.updateContactTopics(contactId, {
  topics: [{ topicId: topic!.id, subscribed: false }],
});

Any language with HTTPS

curl -X POST https://app.usenotix.dev/api/v1/topics \
  -H "Authorization: Bearer $NOTIX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Product updates",
    "defaultSubscription": "OPT_IN",
    "visibility": "PUBLIC"
  }'

A clean list

Respect every choice, automatically

One suppression list

Hard bounces, complaints and unsubscribes are suppressed for your whole team, from the API, SMTP and broadcasts.

Emails > Suppressions

Double opt-in

Turn it on and new contacts get a confirmation email before they count as subscribed.

per contact book

Your unsubscribe page

Set up the page people land on when they leave, under Settings in the console.

Settings

FAQ

Questions, answered

What is a contact book?

A list of contacts with the properties you choose, such as plan, city or seats. Each book can have double opt-in turned on, its own segments, and you can add contacts by CSV import, the API, a sign-up form or by hand.

Do segments update on their own?

Yes. A segment is a saved rule on one contact book, and Notix works out who matches each time you use it. A contact who changes plan moves in or out without you rebuilding anything.

What can a segment rule look at?

The email address, names, whether the contact is subscribed, when they were added, any property, what they received, opened or clicked, whether they bounced or complained, and where they are in an automation. Match all or any, with one level of groups.

What is a topic?

A kind of email a contact can choose to get, such as Product updates or Weekly tips. An opt-in topic goes to everyone until they switch it off; an opt-out topic goes only to people who switch it on. Send a broadcast to a topic and only the people who want it get it.

Can I switch a topic back on after a contact turned it off?

No. When a contact switches a topic off on their own preference page, that choice is theirs, and the API answers 409 if you try to change it. Unsubscribing from everything always wins over topics.

Do I pay for storing contacts?

No. Contact books, contacts and suppression entries are not metered. You pay for the email you send.

More features

See every feature or compare plans.

Bring your list and start sending.

Import a CSV, add a segment and send your first broadcast. Contacts are never metered.