Developers introduced the MCP Events feature in their MCP, which enables session-spanning callbacks and event subscriptions (for example deployment.succeeded), avoiding continuous polling. They recommend implementing the background infrastructure with Vercel Queues and Workflows.
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Extending the MCP protocol: notifications across sessions with MCP Events
Developers introduced the MCP Events feature in their MCP, which enables session-spanning callbacks and event subscriptions (for example deployment.succeeded), avoiding continuous polling.



