- Starting price
- $39seat per month
- Pricing
- Free plan
- Website
- www.langchain.com
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 pricingPlans and prices as listed on langchain.com as of Sep 24, 2026.
Developer
$0 / seat per month
- Up to 5k base traces / mo, then pay-as-you-go
- Community support
- 1 seat
Plus
$39 / seat per month
- Up to 10k base traces / mo, then pay-as-you-go
- Access to Deployment, Engine, and more
- Add unlimited seats
Enterprise
Custom pricing / then pay as you go
- Self-hosted and hybrid deployment options
- Custom SSO, ABAC, and RBAC
- Support SLA
- Custom seats and workspaces
