The specification does not state what becomes of a notifiable event that occurs while no client holds a matching subscription; neither the subscriptions page the streamable transport page the tools page nor the changelog addresses retention queueing or replay.

fact · verified 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
Status
fact
Confidence
0.90
Verified
2026-09-05

Sources

Cite this claim

APA

WarmTransfer. (2026, September 5). The MCP subscriptions listen stream and notification delivery: claim mcpsub-undelivered-notification-unstated. WarmTransfer. https://warmtransfer.net/knowledge/claims/mcpsub-undelivered-notification-unstated

BibTeX

@misc{warmtransfer-claim-mcpsub-undelivered-notification-unstated,
  title  = {The MCP subscriptions listen stream and notification delivery: claim mcpsub-undelivered-notification-unstated},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/mcpsub-undelivered-notification-unstated},
  note   = {Claim mcpsub-undelivered-notification-unstated, verified 2026-09-05}
}

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