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Headless API · email playbook

Welcome and first-purchase sequences

A welcome and first-purchase sequences playbook for E-commerce & Retail, built headless api. Starting from a shopper subscribes or makes a first purchase, Mailable designs every on-brand email in the flow and ships it through your store (shopify / woo) and the tools you already use - inbox-ready in every client.

Headless APIBuild mode: Built via the headless API + MCP

Trigger

A shopper subscribes or makes a first purchase

E-commerce & Retail

Design engine

Mailable

Mailable

prompt → on-brand email

Brand kit

colors · fonts · voice

Who runs it

Build mode

Built via the headless API + MCP

Lifecycle marketers

team

Founders & operators

team

Growth & retention

team

Integrations

Synced via API & MCP

shopify
klaviyo
mailchimp
segment

Sends to

Your store (Shopify / Woo)

ESP

Customer data

How the flow works

Trigger: A shopper subscribes or makes a first purchase

  1. 1

    Mailable designs a welcome email with your bestsellers and a first-order nudge

  2. 2

    A short follow-up sequence introduces the brand and social proof

  3. 3

    Everything is pulled on-brand from your store and brand kit

  4. 4

    Synced to Shopify or WooCommerce and your ESP

Who runs it

  • Lifecycle marketers
  • Founders & operators
  • Growth & retention

Integrations

shopify
klaviyo
mailchimp
segment

Synced from your stack; designs stay on-brand by default.

Build mode & destinations

Built via the headless API + MCP

Your store (Shopify / Woo)

ESP

Customer data

What keeps it on-brand & on-track

  • Product and price pulled live from the catalog
  • Brand kit applied to every send
  • Mobile-first, since most opens are on a phone

Headless API

Your product or an LLM agent calls the Mailable API (or MCP server) to design and send this flow programmatically - on-brand, inbox-ready HTML, no browser required.

Describe it. Ship beautiful email.

Start free, or talk to us about designing email at scale through the editor and the headless API.