Source note · Model Context Protocol transports compared
On stdio in MCP revision 2026-07-28 clients MUST correlate notifications delivered for an active subscriptions/listen request using the io.modelcontextprotocol/subscriptionId field in _meta.
Checked 2026-09-30
- Vendor
- Model Context Protocol project
- Product
- MCP specification
- Subsystem
- stdio transport
- Deployment
- local-subprocess
- Region
- not restricted
- Release range
- MCP revision 2026-07-28
- Checked
- 2026-09-30
Sources
- stdio — Model Context Protocol (modelcontextprotocol.io) · tier 1 standards and regulators · section Receiving Messages, numbered item 3
Cite this note
APA
WarmTransfer. (2026, September 30). Model Context Protocol transports compared: source note mcp-transport-differences-stdio-sub-correlation. WarmTransfer. https://warmtransfer.net/knowledge/claims/mcp-transport-differences-stdio-sub-correlation
BibTeX
@misc{warmtransfer-claim-mcp-transport-differences-stdio-sub-correlation,
title = {Model Context Protocol transports compared: source note mcp-transport-differences-stdio-sub-correlation},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/mcp-transport-differences-stdio-sub-correlation},
note = {Source note mcp-transport-differences-stdio-sub-correlation, checked 2026-09-30}
}