--- title: "How LangSmith and LangChain OSS Help You Meet EU AI Act Requirements" url: https://daily.dev/posts/how-langsmith-and-langchain-oss-help-you-meet-eu-ai-act-requirements-2cb4ufyfp source_url: https://www.langchain.com/blog/langsmith-langchain-oss-eu-ai-act type: article source: "LangChain" published: 2026-07-08T19:22:59.919Z updated: 2026-07-08T19:24:54.622Z tags: ["ai-agents", "langchain", "langgraph", "langsmith"] reading_time: 6 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How LangSmith and LangChain OSS Help You Meet EU AI Act Requirements **[LangChain](https://daily.dev/sources/langchain)** · 6 min read · 0 upvotes · 0 comments ## Summary The EU AI Act compliance deadline is August 2, 2026, with penalties up to €15M for non-compliant high-risk AI systems. LangSmith and LangChain OSS tools address the Act's core technical requirements: Article 12 automatic event logging is covered by LangSmith's end-to-end tracing of every LLM call, tool invocation, and reasoning step; Article 15 accuracy and adversarial resilience requirements are met by online evaluators scoring production traces for bias, hallucination, toxicity, PII leakage, and prompt injection; Article 14 human oversight is implemented via LangGraph's interrupt primitive for pausing and resuming agent execution, annotation queues for structured human review, and webhook-based alerting. EU data residency needs are addressed through LangSmith EU SaaS, BYOC, and self-hosted deployment options. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#langchain](https://daily.dev/tags/langchain), [#langgraph](https://daily.dev/tags/langgraph), [#langsmith](https://daily.dev/tags/langsmith) [View this post on daily.dev](https://daily.dev/posts/how-langsmith-and-langchain-oss-help-you-meet-eu-ai-act-requirements-2cb4ufyfp)