The Hallway Track
Engineering Insights

HTTP Channels for Managed Deep Agents

LangChain · Sep 30, 2026 · Engineering Insights

LangChain launches custom HTTP channels letting managed agents connect to any external service

“You're going to want to use a custom HTTP channel anytime you want inbound requests to your agent that you don't control”

LangChain's managed deep agent platform now supports custom HTTP channels, allowing developers to wire agents to arbitrary inbound services (HubSpot, Salesforce, SMS via Twilio/Photon) without waiting for built-in integrations. The demo shows a TypeScript expense-triage agent deployed over iMessage with durable memory and thread management keyed by phone number. This is a platform extensibility feature for LangSmith-hosted agents, relevant to developers but not a major industry inflection point.

LangChain LangSmith agents HTTP channels durable memory SMS webhooks LangGraph

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