LangSmith
langchain.comBuild Difficulty: 5/5
Build a working replacement in a weekend with AI tools
Observe, Evaluate, and Deploy Reliable AI Agents
How to Replace LangSmithOverview
Features
36 features across 20 categories
API(1)
APIs for building AI assistants with 30+ endpoints including state and memory
Administration(1)
User and Admin roles at organization level
Agent Creation(1)
No-code interface to create agents for real work using everyday language
Analytics(1)
Analytics and insights into agent performance
Automation(1)
Schedule agent executions using cron expressions
Collaboration(1)
Share and clone agent templates
Compatibility(1)
Works with any open-source framework or custom code
Data Management(2)
Export large amounts of data in bulk
Convert live data into test datasets
Deployment(5)
Deploy agents to production in one click with managed infrastructure
Ship and scale agents in production with infrastructure designed for long-running workloads that need human collaboration
Automatically scale agent deployments based on demand
Studio interface for managing deployed agents
Handle memory persistence across long-running agent executions
Development(1)
Test and iterate on prompts and agents in an interactive environment
Evaluation(2)
Turn live data into test datasets and score performance with automated evaluators and expert feedback
Evaluate agent performance with automated evaluators and expert feedback
Feedback(1)
Collect human feedback for training and evaluation
Hosting(2)
Hybrid hosting option with SaaS control plane and self-hosted data plane
Fully self-managed hosting option in your VPC
Integration(3)
Trigger agent via API
Expose agent as MCP (Model Context Protocol) server
Add tools with remote MCP server
Monitoring(1)
Monitor agent performance and receive alerts on issues
Observability(3)
See exactly what your agent is doing at every step with detailed execution tracking
Real-time streaming of intermediary steps and final output
Clear visibility into each step of agent execution to quickly identify issues and debug problems
Prompt Management(2)
Visual editor for auto-improving prompts
Manage and improve prompts in a centralized hub
SDK(2)
Python SDK for integrating with LangSmith
TypeScript SDK for integrating with LangSmith
Security(4)
Authorization controls for agent access
Manage authentication and authorization for LangGraph APIs
Custom Single Sign-On configuration
RBAC for fine-grained permission management
Templates(1)
Access to prebuilt agent templates for common use cases
Pricing
Developer
- ✓Up to 5k base traces / mo, then pay-as-you-go
- ✓Tracing to debug agent execution
- ✓Online and offline evals
- ✓Prompt Hub, Playground, and Canvas for auto improving prompts
- ✓Annotation queues for human feedback
- ✓Monitoring and alerting
- ✓1 Agent Builder agent
- ✓Up to 50 Agent Builder runs / mo
- ✓Community support
- ✓1 seat
Plus
Popular- ✓Up to 10k base traces / mo, then pay-as-you-go
- ✓Tracing to debug agent execution
- ✓Online and offline evals
- ✓Prompt Hub, Playground, and Canvas for auto improving prompts
- ✓Annotation queues for human feedback
- ✓Monitoring and alerting
- ✓1 dev-sized agent deployment included
- ✓Email support
- ✓Unlimited Agent Builder agents
- ✓Up to 500 Agent Builder runs / mo, then pay-as-you-go
- ✓Add unlimited seats
- ✓Up to 3 workspaces
Enterprise
- ✓Everything in the Plus plan
- ✓Alternative hosting options, including hybrid and self-hosted
- ✓Custom SSO and RBAC
- ✓Access to deployed engineering team
- ✓Support SLA
- ✓Team trainings & architectural guidance
- ✓Custom seats and workspaces
- ✓Custom Agent Builder packages
- ✓Custom trace volume
- ✓Custom max trace ingestion and trace size
Cost Calculator
Keep Paying LangSmith
Build It Yourself
Total Cost Comparison
DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 36 features at very easy complexity.
Build vs Buy
Should you build a LangSmith alternative or buy the subscription? Estimate based on 36 features.
Buy LangSmith
Better ValueBuild Your Own
Buying LangSmith saves ~$22,920 over 3 years vs building.
Estimates based on 36 features and a BuildScore of 5/5. Actual costs vary.
Integrations
9 known integrations