Skip to main content
Sylphx

Sylphx NotifyPreview

Email, SMS, push, and an in-app inbox, with your users’ preferences.

Part of Sylphx: the same account, the same key, and the same bill as every other service. In the same league as Resend, Knock.

Start with Sylphx NotifyRead the docs

What Sylphx Notify does

  • One message, every channel

    A message is admitted once and fans out to the channels a recipient allows, with fallback and digesting.

  • Email done properly

    Verified sending domains, DKIM signing, versioned templates, and suppression on bounces and complaints.

  • Inbox and broadcasts

    An in-app inbox that updates live, and scheduled broadcasts that still honour every preference.

  • Each delivery closes with the provider’s receipt.

Quickstart

Your first call

Install the SDK, set SYLPHX_API_KEY to a key from the console, and call the API. The CLI speaks the same API.

index.ts
import { Sylphx } from '@sylphx/sdk'

// Reads SYLPHX_API_KEY: one key for every Sylphx service.
const sylphx = new Sylphx()
const me = await sylphx.access.whoami({})

for await (const item of sylphx.notify.messages.listAll({ parent: me.env! })) {
  console.log(item.name)
}
Install
npm install @sylphx/sdk
CLI
sylphx notify messages list

Pricing

Pay for what you use

Start free. Pro is $20 a month and includes $20 of usage across every service; usage past it bills at the prices below, up to your spend cap.

Free includes

Emails
3,000

Pro includes

Emails
3,000

Then

Emails
$0.80 / 1,000 emails
Push notifications
Free

Every service’s prices