Headless API · email playbookNewsletters and weekly sends that look designed
A newsletters and weekly sends that look designed playbook for Marketing & Growth, built headless api. Starting from a new issue or campaign is ready to send, Mailable designs every on-brand email in the flow and ships it through your esp and the tools you already use - inbox-ready in every client.
Headless APIBuild mode: Built via the headless API + MCPTrigger
A new issue or campaign is ready to send
Marketing & Growth
Design engine
Mailable
prompt → on-brand email
Brand kit
colors · fonts · voice
Who runs it
Build mode
Built via the headless API + MCP
Lifecycle marketers
team
Content & brand
team
Demand gen
team
Integrations
Synced via API & MCP
Sends to
Your ESP
CMS
Analytics
How the flow works
Trigger: A new issue or campaign is ready to send
- 1
Mailable designs a polished, on-brand newsletter from your draft
- 2
It lays out sections, imagery, and a clear primary CTA
- 3
Renders cleanly across every client and dark mode
- 4
Scheduled and sent through your ESP
Who runs it
- Lifecycle marketers
- Content & brand
- Demand gen
Integrations
Synced from your stack; designs stay on-brand by default.
Build mode & destinations
Built via the headless API + MCP
Your ESP
CMS
Analytics
What keeps it on-brand & on-track
- Designed every week without a designer in the loop
- Consistent brand across every issue
- Opens, clicks, and conversions tracked
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.
More Marketing & Growth playbooks
Describe it. Ship beautiful email.
Start free, or talk to us about designing email at scale through the editor and the headless API.