About LangChain
LangChain is a developer toolkit for building reasoning-enabled applications across the development lifecycle. It serves engineering teams from startups to global enterprises, helping them assemble multi-step, governance-ready software with reusable components.
Key Features
When teams build reasoning-enabled apps, LangChain provides a path for designing multi-step inferences, wiring prompts and tools, and coordinating development work from prototype to production. It helps teams manage complexity with shared components and governance controls across orgs:
Reasoning Engine
Supports multi-step inference and decision-making within apps, enabling you to chain prompts and tool calls.
Prompts and Tooling Suite
Provides flexible prompts and tool integrations for LLMs, letting you plug in external APIs and adapters as needed.
Workflow Orchestration
Coordinates development tasks across the lifecycle to move from prototype to production with consistent processes.
Scalability and Governance
Scales from startup to enterprise while enforcing governance and security controls.
Summary
Best for AI/ML engineering teams, product teams building decision workflows, and platform/ops groups needing scalable governance around LLM apps.
Pricing
View pricingDeveloper
0 / monthly
- Maximum of 1 seat
- 5k base traces / mo included
- N/A deployment
- N/A uptime cost
Plus
39 per seat / monthly
- Up to 10 seats
- 10k base traces / mo included
- 1 free Dev deployment with unlimited agent runs included
- $0.005 / agent run for additional deployments
- $0.0007 / min for Development deployment
- $0.0036 / min for Production deployment
Enterprise
Custom / annual
- Custom number of seats
- Custom base traces/month included
- Custom deployment options
- Custom uptime costs
