Sustain
Sustain builds photo albums. You add photos; it analyses them, groups them into chapters by time and place, chooses a cover, writes the titles and lays out every page. Albums can be shared, exported as PDF, or ordered as a printed book. This connector exposes the same operations the web app's buttons call, so an agent works your albums through the product's own code rather than by driving a browser. It can create an album and upload photos straight from a folder on your machine, search your existing library in plain language ("the beach ones from last summer"), lay out a free draft, run the full AI build, and afterwards explain what it decided — which chapters it formed, which cover it chose, and why a particular photo was left out. Photos never pass through the conversation. A single full-resolution image can exceed an entire context window, so the tools move files rather than pixels: an agent with filesystem access uploads them directly under a short-lived ticket, one without gets a link for you to open on the device the photos are on, and Google Photos imports are fetched server-side after you choose them in Google's own picker. Two tools spend credits and say so in capitals; everything else is free and says that too. You choose what the agent may do when you connect it, and disconnecting takes effect on its next call.
Details
https://mcp.sustain-app.com/mcp · streamable-http
