Core
Provider-agnostic LLM core for Node.js inspired by ruby-llm.
Pricing
Free tier
Flat rate
Adoption
→StableLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is Core?
A provider-agnostic LLM core for Node.js, enabling developers to integrate language models into their applications without vendor lock-in. It is designed to be flexible and easy to use with various language model providers.
Key differentiator
“The only provider-agnostic LLM core for Node.js, offering unparalleled flexibility and ease of integration across various language model providers.”
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
Official documentation lacks detailed guides and practical use cases, leading to confusion during integration
Observations show increased latency when processing large volumes of text data through the API
Fit analysis
Who is it for?
✓ Best for
Node.js developers who need to integrate multiple LLM providers in a single application
Projects requiring flexibility and ease of switching between different language models
Teams looking for an open-source solution without vendor lock-in
✕ Not a fit for
Developers needing real-time streaming capabilities (batch-only architecture)
Projects with strict licensing requirements incompatible with MIT license
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
Alternatives
Next step
Get Started with Core
Step-by-step setup guide with code examples and common gotchas.