Durable StreamsThe data primitive for the agent loop
Persistent, addressable, real‑time streams for building resilient, collaborative agentic systems.
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CLI
Create, read, append-to and tail streams
Open guideClients
TypeScript, Python and other languages
Open guideTanStack AI
Durable Session for TanStack AI apps
Open guideVercel AI SDK
Durable Transport for AI SDK apps
Open guideJSON mode
Stream structured data using JSON messages
Open guideDurable State
Sync structured state over durable streams
Open guideStreamDB
A type-safe, reactive database in a stream
Open guideStreamFS
A reactive agent filesystem in a stream
Open guide