MCP Dev Summit Mumbai 2026

MCP Apps are reshaping what a Model Context Protocol server can do — turning text-only tool exchanges into rich, interactive experiences embedded directly in the host. This session takes a builder's tour of the MCP Apps extension: core concepts, target use cases (dashboards, multi-step workflows, human-in-the-loop confirmations), the security model, and current limitations worth knowing before adoption.
A central theme is the visibility paradigm — letting UI carry state the model doesn't need to see, unlocking meaningful token savings on data-heavy flows. We'll cover iframe sandbox constraints, postMessage patterns, session-bound identity, and prompt-injection defenses for sensitive actions. We will also cover existing protocol limitations and work going on to address the same in exp-apps working group.
We close with a live Go-based demo executing a fund transfer flow end-to-end.