LLM Orchestration

LLM Interface

Unified NPM-based interface for multiple Large Language Model APIs.

Status
Generally available
Last checked
Checked · Oct 12, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

A simple and unified npm package that allows developers to interact with various large language model APIs, including OpenAI, AI21 Studio, Anthropic, and more. This tool simplifies the integration of different LLMs into applications by providing a consistent API.

LLM Interface stands out as a lightweight, open-source solution that simplifies working with diverse large language models through a single, unified API interface.

When it fits — and when it doesn’t

A good fit for

  • JavaScript/TypeScript developers looking to integrate multiple LLMs into their projects with minimal setup

  • Teams that need flexibility in choosing between different LLM providers without changing codebase significantly

  • Projects requiring a consistent API across various AI services

Look elsewhere if

  • Developers who only require interaction with one specific LLM provider and prefer direct integration

  • Scenarios where the overhead of managing multiple LLMs is not justified by the project's requirements

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited documentation for advanced use cases

    Documentation lacks examples and explanations for complex configurations and error handling

  2. 02

    Performance overhead due to abstraction layer

    The unified API adds latency compared to direct calls to LLM providers

What it does well

  • Unified interface for multiple LLM APIs

  • Supports a wide range of popular LLM providers

  • Easy to integrate into existing projects via npm

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

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Set up LLM Interface

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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