L
LangChain
Open Source
Developer Platform
Framework and platform for building LLM apps, agents, retrieval workflows, tracing, and evaluation.
Supported Platforms
Notes
- Traffic-aware seed rank #100. Based on public 2026 traffic-ranking references and editorial normalization; verify with Similarweb or first-party data before treating as audited.
Latest Updates
LangSmith BYOC is now available on AWS, Azure, and Google Cloud
Nov 4, 2026
How We Optimized Browser Use for Deep Agents
Nov 3, 2026
Why human insight is a strategic advantage for building better agents
Nov 3, 2026
New context engineering challenges in late 2026
Nov 2, 2026
Managed Deep Agents v0.10: Browser Use and Async Subagents
Oct 29, 2026