Glossary · term157 of 202
resource subscription
An MCP feature where a client registers interest in specific resource URIs so it gets notified of changes. It was removed from the stateless spec because tracking subscribers required the server to remember state.
also written as resource subscriptions · subscribe
Related terms
STDIO transportA way of connecting an MCP client and server over standard input and output streams rather than HTTP, where the spec requires clients to re-send subscriptions after a server crash.view termsubscriptions/listenThe MCP request a client now sends listing every resource URI it wants updates on, replacing the server-side subscribe feature the spec removed.view term
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- first used
- jul 2026
