The subscriptions page states a client obligation for the standard input and output transport: a client MUST demultiplex incoming notifications by subscription identifier.
Checked 2026-09-05
- Vendor
- Model Context Protocol project
- Product
- Model Context Protocol
- Subsystem
- protocol
- Deployment
- not restricted
- Region
- not restricted
- Release range
- specification revision 2026-07-28
- Checked
- 2026-09-05
Sources
- Model Context Protocol specification 2026-07-28, Subscriptions — Model Context Protocol project · tier 1 standards and regulators · Subscriptions, stdio transport
Cite this note
APA
WarmTransfer. (2026, September 5). The MCP subscriptions listen stream and notification delivery: source note mcpsub-stdio-demultiplex-must. WarmTransfer. https://warmtransfer.net/knowledge/claims/mcpsub-stdio-demultiplex-must
BibTeX
@misc{warmtransfer-claim-mcpsub-stdio-demultiplex-must,
title = {The MCP subscriptions listen stream and notification delivery: source note mcpsub-stdio-demultiplex-must},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/mcpsub-stdio-demultiplex-must},
note = {Source note mcpsub-stdio-demultiplex-must, checked 2026-09-05}
}