LangSmith BYOC is now generally available on AWS

LangSmith Bring Your Own Cloud (BYOC) is now generally available on AWS, providing Enterprise customers with a LangChain-managed LangSmith deployment that operates within their own AWS account and VPC, allowing sensitive data such as traces, prompts, datasets, experiments, agent deployments, and sandbox data to remain under customer control. Designed for regulated and security-sensitive organizations, the service combines the data residency and private-network access of self-hosting with managed provisioning, scaling, upgrades, backups, monitoring, and lifecycle operations from LangChain. Its architecture separates a LangChain-hosted control plane, which manages authentication, configuration, billing metadata, and orchestration, from a customer-hosted data plane containing a private EKS cluster, databases, storage, and runtime data, with communications routed through AWS PrivateLink rather than the public internet. BYOC supports most core LangSmith capabilities, including observability, evaluation, Insights, Context Hub, agent deployment, sandboxes, LLM Gateway, Fleet, and SmithDB, while several additional features are planned. Available across 15 AWS regions in the US, EU, and APAC, it is deployed through a Terraform-created IAM role with scoped infrastructure permissions and includes auditable operational access and standardized AWS components such as multi-AZ databases, autoscaling, and customer-owned backups.

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