Proposal for MCP Apps Extension (SEP-1865) to Standardize Interactive User Interfaces in Model Context Protocol
By
mercury24aug
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Summary
The article introduces the MCP Apps Extension proposal (SEP-1865), which aims to standardize support for interactive user interfaces in the Model Context Protocol. This extension addresses a highly requested community feature and builds on existing work from MCP-UI and OpenAI Apps SDK. The proposal establishes a standardized pattern for declaring UI resources, linking them to tools, and enabling bidirectional communication between embedded interfaces and host applications. The SEP was developed collaboratively with MCP-UI creators and maintainers from OpenAI and Anthropic.
Key quotes
· 4 pulledToday we're introducing the proposal for the MCP Apps Extension (SEP-1865) to standardize support for interactive user interfaces in the Model Context Protocol.
This extension addresses one of the most requested features from the MCP community and builds on proven work from MCP-UI and OpenAI Apps SDK - the ability for MCP servers to deliver interactive user interfaces to hosts.
MCP Apps Extension introduces a standardized pattern for declaring UI resources, linking them to tools, and enabling bidirectional communication between embedded interfaces and the host application.
The SEP was authored by MCP-UI creators and maintainers from OpenAI and Anthropic.
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