The Instagram Messaging API lets developers build messaging solutions for Instagram Professional accounts, business and creator alike. It opens up the Instagram Professional Inbox, supports responding to customer messages across diverse media types, and enables private replies to public posts and comments. My job was to make that capability legible: to show, not just tell, what the API unlocks.

A small system, built out of necessity

To produce the examples consistently and at speed, I built a lightweight design system as I went: reusable Instagram UI components, message and inbox states, and brand-swappable templates driven by Meta’s internal fictitious brands. It kept every screen on-brand and let me turn around new scenarios quickly, the same systems thinking I’d carry into larger programs later.

From a comment to a conversation

For the launch I produced a comprehensive end-to-end customer-support flow demo, following a single interaction from a public comment through a private reply into a full Professional Inbox conversation, so partners and press could see the whole experience rather than isolated screens.

See it work, end to end

An interactive walkthrough that turned the API spec into something tangible, showing partners and press exactly how a public comment becomes a managed customer-support conversation.

Reflection

The hard part of launching a developer API isn’t the API, it’s making something abstract feel real. A small design system, built out of necessity, let me turn an unfamiliar capability into concrete, on-brand examples partners could grasp in seconds, and it was an early reminder that the leverage is almost always in the system, not the single screen.