Bedrock AgentCore Launches Session Endpoints for Real-Time Preview of Web Apps Built by Coding Agents
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Amazon Bedrock AgentCore runtime has launched the Session endpoints feature. This feature provides an authenticated URL for each agent session, forwarding HTTP/1.1, HTTP/2, and WebSocket requests to ports allowed by allowedPorts (in the range 8000–12000, with 1–5 configurable port rules). With this capability, developers can preview in their own browsers, in real time, the website a coding agent is building, without any additional deployment. The news comes from a first-hand report on the AWS Machine Learning Blog, published on October 31, 2026. The feature is currently in live preview, and no further information is available on general availability timing or pricing.
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- AWS Machine Learning BlogPreview web apps live as your coding agent builds them with Amazon Bedrock AgentCore runtime
Amazon Bedrock AgentCore runtime introduces Session endpoints, providing an authenticated URL for each agent session that forwards HTTP/1.1, HTTP/2 and WebSocket requests to allowed ports (8000–12000, 1–5 entries) configured via allowedPorts, letting developers preview websites built by coding agents live in their own browser.
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