New: design and send email from the headless API.Explore the API

Run a Dev tools company headless

A dev tools company runs on the same operational work every day. Mailable gives you a team of agents to run it: Onboarding, support and lifecycle ops, run by agents. You set direction and approve the calls that matter.

Your dev tools company agent team

Growth & lifecycle

Ship activation and expansion flows without engineering.

Product teams

Fire transactional and lifecycle email from the API as a tool call.

Founders

Look like a company with a design team from day one.

What runs itself

  • Onboarding and activation sequences
  • Trial-expiry and upgrade nudges
  • Feature announcements and product updates
  • Renewal, dunning, and win-back flows
  • Transactional email (verify, reset, receipts) on-brand
  • Trigger any of it from the API or MCP

The old way

  • New users get one welcome email and then silence
  • Transactional email is plain text that breaks the brand
  • Engineering owns email and it never gets the design love

Headless, a dev tools company hands all of this to a team of agents, and your people move to the work only they can do.

How a dev tools company runs headless

  1. 1

    Map the busywork

    Start with the repetitive work that keeps a dev tools company running.

  2. 2

    Hire your agent team

    Specialists like Growth & lifecycle and Product teams.

  3. 3

    Connect your systems

    Agents reach your tools and records through MCP.

  4. 4

    Approve & run

    You approve the calls that matter. Agents handle the rest, 24/7.

API

design and send email from your product

Describe it. Ship beautiful email.

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