protocolTechArticle
MCP Events and Changes
Understand MCP notifications, event-driven updates, resource changes, and stream-safe client behavior.
Quick Answer / TL;DR
MCP event patterns use notifications and stream updates so clients can react when resources, server state, or long-running operations change.
Key Takeaways
- Notifications do not require responses.
- Stream updates need retry handling.
- Clients should tolerate duplicate events.
Event-safe design
Treat event streams as eventually consistent. Include request IDs and resource versions so clients can deduplicate updates after reconnects.
{
"jsonrpc": "2.0",
"method": "notifications/resources/updated",
"params": {
"uri": "logs://payments/today",
"version": "2026-07-19T09:00:00+05:30"
}
}MCP Events and Changes FAQs
Direct answers for developers, operators, and Indian teams evaluating MCP.