Features
AI-native cross-platform sandboxes
Secure, isolated cloud environments
Multimodal runtime (code, browser, computer use)
Deep research agent support
Data analysis and visualization
Browser automation and web scraping
Computer use with GUI interaction
File system management (read/write/upload/download)
Session lifecycle management (create, list, delete, info)
Pay-as-you-go pricing per second
Context synchronization across sessions
Session labeling and recovery
Environment variables support
Trace agent executions step by step
Monitor real-time dashboards with cost tracking
Online LLM-as-judge evals for quality scoring
Automated insights with unsupervised topic clustering
SmithDB purpose-built for agent traces
Sub-second query performance across millions of traces
Full-text search with inverted index
JSON key-path filtering and trajectory queries
Self-host SmithDB inside your VPC
LangSmith Engine for autonomous issue detection and fixes
Deploy and scale agents with LangSmith Deployment
Sandboxes for safe agent-generated code execution
Fleet agents for no-code agent creation
Supports Python, TypeScript, Go, Java SDKs
