Plugin / Extension Marketplace — A catalog of third-party apps that install into the billing platform — tax engines, CRM syncs, collections tools — without custom integration work. It rests on the public API and webhook contracts and shortens the build-vs-buy decision for adjacent capabilities.
Plugin / Extension Marketplace lives in the Platform & Intelligence phase of Grow Revenue — the stage where you retain, expand, and compound revenue on the platform. In the corpus tool index this phase maps to the Analytics and Data platform and Cost & FinOpscategories.
No product category maps cleanly onto this module yet — companies typically build it in-house or cover it with adjacent tooling. See who builds vs buys across the corpus.