MCP (Model Context Protocol)
Open protocol that connects AI apps to outside tools and data
Records 7
Newest first. Open one to see it with its source.
MCP is redesigned from the ground up, from a protocol of stateful sessions into a stateless, per-request one. The largest break in backward compatibility yet
Removes initialize and Mcp-Session-Id, introduces MRTR, adds server/discover, and promotes the Tasks and MCP Apps extensions
A protocol that used to carry only text and structured data now extends to on-screen interfaces
Aligned the auth model with standard OAuth practice and moved spec governance to committee procedures
Resolves the fragmentation of server discovery, with a structure of a central registry plus private subregistries
Introduces a standard procedure for servers to ask the user for more input; adds a new security best practices section
Introduced a transport that replaces HTTP+SSE and a standard authorization framework