Langchain Ts
Extracts Langchain prompts and generates TypeScript types.
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Verified · Jul 12, 2026Overview
What is Langchain Ts?
Langchain-ts is a tool that extracts Langchain prompts from your codebase and automatically generates TypeScript types for them, enhancing type safety in development workflows involving Langchain.
Key differentiator
“Langchain-ts stands out by providing a seamless integration for generating TypeScript types directly from Langchain prompts, offering enhanced type safety and automation in the development process.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
API requires Python-specific patterns, TypeScript SDK is community-maintained
v0.1 to v0.2 migration required rewriting chain definitions
Lacks native support for popular TypeScript utilities and frameworks, requiring custom integration workarounds
GitHub repository has few contributors and open issues remain unresolved for extended periods
Fit analysis
Who is it for?
✓ Best for
TypeScript developers working on projects that heavily integrate with Langchain, requiring robust type safety.
Teams looking to automate the generation of TypeScript types from Langchain prompts to streamline development processes.
✕ Not a fit for
Projects not using TypeScript or Langchain.
Developers who prefer manual management of type definitions over automated solutions.
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Works well with
Next step
Get Started with Langchain Ts
Step-by-step setup guide with code examples and common gotchas.