Model Context Protocol · Endpoint removal
streamablehttp_client stops working
Stopped working
Calls to SDK mcp streamablehttp_client from major 2 on Model Context Protocol stopped working on July 28, 2026.
What to use instead of these calls
Import streamable_http_client from mcp.client.streamable_http: it keeps the same keyword arguments. Or pin mcp below 2.
Calls it hits
SDK mcp streamablehttp_client from major 2
Facts
- API
- Model Context Protocol
modelcontextprotocol.io - Kind
- Endpoint removal
- Takes effect
- July 28, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
More from Model Context Protocol
- The HTTP+SSE transport is deprecated Deprecated, no date