Open SWE: An Open-Source Framework for Internal Coding Agents - LangChain Blog

Mar 19, 2026
  • Framework Overview: Open SWE is an open-source framework designed to help organizations build their own internal autonomous coding agents, mirroring successful architectures used by companies like Stripe, Ramp, and Coinbase.
  • Core Architecture: The framework is built on LangGraph and Deep Agents, emphasizing a modular approach with components for planning, execution (Programmer/Reviewer), and human-in-the-loop controls.
  • Security and Sandboxing: It provides isolated cloud sandboxes (supporting providers like Modal and Daytona) to ensure secure code execution and containment of potential errors.
  • Enterprise Features: Key capabilities include rich context management (e.g., integrating Linear or Slack), subagent orchestration, and the ability to handle long-running, multi-step coding tasks autonomously.

Entities: LangChain, Stripe, Ramp, Coinbase, Modal, Daytona, Runloop, LangSmith, GitHub, Linear, Slack, NVIDIA