All MCP apps

This is the catalog of the B77 marketplace — every app you can install into your AI assistant, in one list. Think of it the way you think of a phone: it ships with built-in apps, and you install more to make it useful for your life. Claude, ChatGPT and Cursor ship with built-in abilities — reasoning, writing, code — but not with your project board, your ad account, your analytics or your team's shared notes. B77 apps add exactly that. Each one is a hosted MCP server: in Claude it appears as a connector, in ChatGPT as a plugin, in Cursor as an MCP server. Same app, three names, one URL.

What makes this a marketplace rather than a directory of MCP servers is what happens after you click Install. Nothing runs on your machine — B77 operates every server in EU data centres. Access is granted with OAuth 2.1 and your own sign-in, so an app only ever sees what its page lists under What this app can see. Credentials an app needs are kept in a per-user vault, every call is written to a usage log, and you can share a connection with a teammate without handing over a single secret. Publishing is curated: B77 co-builds each app with its vendor and keeps operating it, which is why the list is short and every entry works.

Use the facets to narrow the list — by the assistant you use, by category, by vendor, or to free apps only. Rankings on this page follow the same live formula as the top chart: rating, installs and freshness, recomputed on every load. If you already know which assistant you use, the storefronts for Claude, ChatGPT and Cursor show the install steps for that client next to the same apps.