Adapter Anthropic

What it is

Adapter Anthropic is a TypeScript-based tool designed to facilitate seamless conversion between various large language model (LLM) APIs, including OpenAI, Anthropic, and DeepSeek. It employs an intermediate representation (IR) pattern to ensure compatibility and ease of integration across different providers. The tool is open-source, with zero dependencies, making it lightweight and easy to implement in existing projects. Despite being relatively new, it has gained attention for its ability to streamline API interactions in multilingual environments.

Uses an IR pattern for seamless LLM API conversion without dependencies.

When it fits — and when it doesn’t

Known weaknesses

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

1. 01

   Limited community support

   Only 117 stars and 11 forks on GitHub.

2. 02

   Emerging maturity

   Created in January 2026, indicating it is a relatively new tool.

3. 03

   Limited documentation

   No explicit mention of comprehensive documentation in the available data.

What it does well

• Zero dependencies

  The tool is designed with no external dependencies, as stated in its description.

• Supports multiple LLM providers

  Explicitly supports OpenAI, Anthropic, and DeepSeek as mentioned in the description.

• Open-source

  The GitHub repository is publicly accessible and not archived.

Pricing

Free tier

Yes

Paid from

—

Model

N/A

Enterprise plan

No

Pricing last confirmed Sep 28, 2026.