createmcps.com

MCP-DEP-003

resources/subscribe and resources/unsubscribe replaced by subscriptions/listen

“Replace the HTTP GET endpoint and resources/subscribe/resources/unsubscribe with subscriptions/listen: a single long-lived POST-response stream for opted-in server-to-client change notifications.” — spec anchor

How to fix this

Replace `resources/subscribe` and `resources/unsubscribe` with `subscriptions/listen` — one long-lived POST-response stream the client opts into.

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Other Deprecated and removed features rules

  • MCP-DEP-001ping is no longer implemented
  • MCP-DEP-002logging/setLevel is no longer implemented
  • MCP-DEP-004No legacy HTTP+SSE endpoint is served
  • MCP-DEP-005Roots / Sampling / Logging capabilities are not advertised
  • MCP-DEP-006Server accepts initialize (dual-era support)
  • MCP-DEP-007A modern-only server names its supported versions in the initialize error