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
How We Built LangChain’s Paid Media Agent
Sep 14, 2026
How we built LangChain’s GTM Agent
Sep 14, 2026
How Credit Genie keeps codebase docs fresh with OpenWiki
Sep 10, 2026
Connections: managed credentials and per-caller identity for Managed Deep Agents
Sep 9, 2026
Organizing Context in a Multi-Agent Harness
Sep 8, 2026