Amazon Bedrock AgentCore Runtime Adds Session Endpoints for Live Web App Preview
Current overview (not historical)
Amazon Bedrock AgentCore runtime now supports Session endpoints, allowing coding agents to preview Vite‑based web applications in real time. The new feature lets a coding agent expose a session‑authenticated URL that forwards the session port to the user’s local browser, enabling developers to see changes as they are built. This capability builds on Bedrock’s existing agent framework, extending it to provide a live, authenticated preview channel for web app development. The Session endpoint is designed to work with Vite sites, but the underlying mechanism can be applied to other web frameworks that support local development servers.
Written with AI from the reporting · updated 10/30/2026
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New at this step ·Amazon Bedrock AgentCore Runtime Enables Live Preview of Coding Agent‑Built Web Apps
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- AWS Machine Learning Blog · First-partyAmazon Bedrock AgentCore Runtime Enables Live Preview of Coding Agent‑Built Web AppsOriginal source ↗
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1 developments10/31/2026, 6:00:15 AM
Amazon Bedrock AgentCore Runtime Enables Live Preview of Coding Agent‑Built Web AppsAWS Machine Learning Blog
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- 1Oct 31, 00:00recorded Oct 31, 06:00single source
Amazon Bedrock AgentCore runtime 预览：实时预览代理构建的 Web 应用
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First-party sources · 1 reports
- AWS Machine Learning Blog · Oct 31, 05:40Amazon Bedrock AgentCore Runtime Enables Live Preview of Coding Agent‑Built Web Apps
Amazon Bedrock AgentCore’s Session Endpoint feature lets a coding agent keep a Vite‑based website running inside an isolated microVM. Each agent session receives an authenticated URL that forwards HTTP and WebSocket traffic to the session’s allowed ports, allowing developers to open the app in a browser, interact with it, and see changes—such as a dark‑theme switch—appear instantly without redeployment. The session endpoint URL is returned in the InvokeAgentRuntime response header X‑Amzn‑Bedrock‑AgentCore‑Runtime‑Session‑Endpoint‑Url, and access requires IAM SigV4 signatures or a JWT bearer token. The sample demonstrates opening a local page with a chat sidebar and the live site, streaming the agent’s steps, and observing internal port handling and request filtering.
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- AWS Machine Learning BlogSelectedAmazon Bedrock AgentCore Runtime Enables Live Preview of Coding Agent‑Built Web Apps
Amazon Bedrock AgentCore’s Session Endpoint feature lets a coding agent keep a Vite‑based website running inside an isolated microVM. Each agent session receives an authenticated URL that forwards HTTP and WebSocket traffic to the session’s allowed ports, allowing developers to open the app in a browser, interact with it, and see changes—such as a dark‑theme switch—appear instantly without redeployment. The session endpoint URL is returned in the InvokeAgentRuntime response header X‑Amzn‑Bedrock‑AgentCore‑Runtime‑Session‑Endpoint‑Url, and access requires IAM SigV4 signatures or a JWT bearer token. The sample demonstrates opening a local page with a chat sidebar and the live site, streaming the agent’s steps, and observing internal port handling and request filtering.
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- 1010月31日 06:00
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