Announcement

Today marks a major milestone for the Model Context Protocol. Anthropic is donating MCP to the Agentic AI Foundation, a directed fund under the Linux Foundation. MCP will become a founding project of the newly created foundation. In one year, MCP has become one of the fastest-growing and widely-adopted open-source projects in AI: Over 97 million monthly SDK downloads, 10,000 active servers and first-class client support across major AI platforms like ChatGPT, Claude, Cursor, Gemini, Microsoft Copilot, Visual Studio Code and many more. ...

We’re updating how Specification Enhancement Proposals (SEPs) are submitted and managed. Starting today, SEPs will be created as pull requests to the seps/ directory instead of GitHub issues. Why the Change? When we introduced SEPs in July, we chose GitHub Issues as our starting point. Issues are familiar to developers, low-friction, and got us up and running quickly. But as more proposals have come through the process, we’ve identified some key pain points: ...

Today, we’re launching the Model Context Protocol (MCP) Registry—an open catalog and API for publicly available MCP servers to improve discoverability and implementation. By standardizing how servers are distributed and discovered, we’re expanding their reach while making it easier for clients to get connected. The MCP Registry is now available in preview. To get started: Add your server by following our guide on Adding Servers to the MCP Registry (for server maintainers) Access server data by following our guide on Accessing MCP Registry Data (for client maintainers) Single source of truth for MCP servers In March 2025, we shared that we wanted to build a central registry for the MCP ecosystem. Today we are announcing that we’ve launched https://registry.modelcontextprotocol.io as the official MCP Registry. As part of the MCP project, the MCP Registry, as well as a parent OpenAPI specification, are open source—allowing everyone to build a compatible sub-registry. ...

The official PHP SDK for the Model Context Protocol is now generally available. Built in collaboration with the PHP Foundation and Symfony, the PHP SDK handles protocol details, so developers don’t have to worry about low-level mechanics and can focus on building their applications. The initial release enables PHP developers to build MCP servers, exposing tools, prompts, and resources to AI applications. Support for PHP applications to act as MCP clients will follow. The PHP SDK now joins 9 other officially supported language SDKs in the MCP ecosystem, making it easier for developers everywhere to adopt MCP in their preferred language. ...

Since its open source release in November of 2024, the Model Context Protocol project has grown faster than we could have ever imagined. That’s a wonderful problem to have, but with growth come growing pains. Our existing processes, which worked well for a small team, have started to show their limits. Today, we’re taking a big step to ensure MCP can continue to grow and thrive. We’re introducing a formal governance model designed to bring clarity to the development process while preserving the collaborative, open source spirit that has made MCP successful. ...