Glossary · Phase 9 · Model Context Protocol
Multi-round-trip request
MCP's way to ask for more input mid-call: the server ends the request with a question, and the client retries it with the answer.
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Nothing is held open in between, which is why stateless servers can do this.
Learn it properly
Progress, subscriptions and multi-round-trip requests · Long-running work, change notifications and asking the user mid-call. About 45 minutes.
Other terms from the same lesson
- elicitation: An MCP server asking the user a question, such as a confirmation, through the app while it handles a request.
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