Since our last November release MCP continued to grow at an astonishing rate. Across our Tier 1 SDKs, we’re seeing close to half-a-billion downloads a month, with both TypeScript and Python SDKs crossing the 1 billion total downloads thresh…
The MCP protocol is about to undergo its biggest revision since launch. As you might’ve seen from our recent release candidate announcement, the new protocol revision goes stateless, removing the initialize handshake and the protocol-level
The Enterprise-Managed Authorization extension is now stable. Organizations can centrally manage authorization for MCP servers and end-users can access all connected MCP servers through a single log in. The extension is being adopted by Ant…
The release candidate for MCP 2026-07-28 is now available. It is the largest revision of the protocol since launch and delivers on the 2026 roadmap: a stateless core that scales on ordinary HTTP infrastructure extensions including server-re…
I’m happy to share two updates to the maintainer team: Clare Liguori is joining the Core Maintainer group, and Den Delimarsky is joining me as a Lead Maintainer. When we introduced the MCP governance model last summer, the goal was to make
MCP tool annotations were introduced nearly a year ago as a way for servers to describe the behavior of their tools — whether they’re read-only, destructive, idempotent, or reach outside their local environment. Since then, the community ha…
You’ve built an MCP server that works quite well, but now you’re wondering: How do I add richer UI elements? Custom auth flows? What about domain-specific conventions, like those for finance or healthcare? This is where extensions come in.
You’ve built an MCP server that works quite well, but now you’re wondering: How do I add richer UI elements? Custom auth flows? What about domain-specific conventions, like those for finance or healthcare? This is where extensions come in.
MCP’s current spec release came out in November 2025. We haven’t cut a new version since, but the project hasn’t stood still. Over the past year MCP has moved well past its origins as a way to wire up local tools. It now runs in production
Today, we’re announcing that MCP Apps are now live as an official MCP extension. Tools can now return interactive UI components that render directly in the conversation: dashboards, forms, visualizations, multi-step workflows, and more. Thi…
A lot has happened since we first released MCP. We wrapped up 2025 with a major spec update and the momentum hasn’t slowed down. None of it would have happened without the community: every PR, every issue filed, every server and client buil…
When MCP first launched in November of 2024, quite a few of its users relied on local environments, connecting clients to servers over STDIO. As MCP became the go-to standard for LLM integrations, community needs evolved, leading to the bui…