Claude Messages API launches message threads in public beta with server-side conversation caching
YashasGunderia · x · 2026-11-03
Anthropic's Messages API now supports message threads in public beta: your conversation is cached server-side between turns, so instead of resending the full history, you only send new messages plus the previous message ID, and Claude starts responding sooner.
This is a practical infrastructure improvement for anyone building long-running conversational agents on Claude, cutting redundant token transfer and latency.
Related event: Anthropic Launches Message Threads Beta for Messages API(4 posts)→