{"type":"post","id":"exploring-file-uploads-and-downloads-in-mcp-98cc90","slug":"exploring-file-uploads-and-downloads-in-mcp-98cc90","title":"Exploring File Uploads and Downloads in MCP","description":"The Model Context Protocol team has published an experimental extension for describing file inputs and moving files between clients, MCP servers, and external storage.","retrieval_nugget":"The Model Context Protocol team has published an experimental extension for describing file inputs and moving files between clients, MCP servers, and external storage. It proposes a standard path for common workflows such as saving a conversation PDF or sending a large CSV to a sandbox, but remains a draft without a reference implementation.","published_at":"2026-11-11","updated_at":"2026-11-11","record_date":"2026-11-11","date_kind":"published_at","topics":["mcp"],"entities":["Model Context Protocol","File Uploads Working Group"],"related_patterns":["agent-protocols-become-interoperability-layer"],"novelty_label":"new_fact","what_changed":"MCP’s File Uploads Working Group has published a rough experimental extension definition for standardized file transfers, inviting developers to test it.","prior_refs":[],"source_url":"https://blog.modelcontextprotocol.io/posts/exploring-file-uploads-and-downloads-in-mcp","source_urls":["https://blog.modelcontextprotocol.io/posts/exploring-file-uploads-and-downloads-in-mcp"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:exploring-file-uploads-and-downloads-in-mcp-98cc90","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/exploring-file-uploads-and-downloads-in-mcp-98cc90/","markdown":"https://newruntime.com/posts/exploring-file-uploads-and-downloads-in-mcp-98cc90.md","json":"https://newruntime.com/posts/exploring-file-uploads-and-downloads-in-mcp-98cc90.json"},"markdown_url":"https://newruntime.com/posts/exploring-file-uploads-and-downloads-in-mcp-98cc90.md","next_reads":[{"type":"topic","path":"/topics/mcp/","url":"https://newruntime.com/topics/mcp/","title":"Mcp","reason":"Explore the mcp topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/mcp.md","json_url":"https://newruntime.com/topics/mcp.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}