Source note · Model Context Protocol transports compared

In Streamable HTTP under MCP revision 2026-07-28 the server MUST NOT send independent JSON-RPC requests on an SSE response stream; notifications on that stream MUST relate to the originating client request, and the final JSON-RPC response SHOULD terminate the stream.

Checked 2026-09-30

Vendor: Model Context Protocol project
Product: MCP specification
Subsystem: Streamable HTTP transport
Deployment: remote-http
Region: not restricted
Release range: MCP revision 2026-07-28
Checked: 2026-09-30

Sources

Model Context Protocol specification 2026-07-28, Streamable HTTP — Model Context Protocol project · tier 1 standards and regulators · section Receiving Messages, bullet list

Cite this note

APA

WarmTransfer. (2026, September 30). Model Context Protocol transports compared: source note mcp-transport-differences-http-no-server-requests. WarmTransfer. https://warmtransfer.net/knowledge/claims/mcp-transport-differences-http-no-server-requests

BibTeX

@misc{warmtransfer-claim-mcp-transport-differences-http-no-server-requests,
  title  = {Model Context Protocol transports compared: source note mcp-transport-differences-http-no-server-requests},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/mcp-transport-differences-http-no-server-requests},
  note   = {Source note mcp-transport-differences-http-no-server-requests, checked 2026-09-30}
}

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