Need to generate content and share it via URL? Durable streams let you write data (e.g., text, files, AI output) to storage, then get a permanent public URL that anyone can access. Write your content, close the stream, and the URL stays accessible. Great for exports, reports, and generated artifacts. For real-time use cases where data streams in as it's generated, see SSE streaming. Use ctx.stream to create, list, and manage your streams.