Run Elftia on Anthropic Claude Models

Add your Anthropic API key and use Claude models for chat and agent sessions, with the same TinyElf tooling as every other provider.

7+
LLM providers supported
1
agent engine across all of them

Elftia is a multi-provider AI desktop app; its LLM routing layer supports Anthropic Claude models alongside OpenAI, Gemini, DeepSeek, and other providers, using a user-supplied API key.

SHOWCASE

See it in action

Add an Anthropic API key

Add an Anthropic API key

Configure Claude as a provider from the model settings screen.

Same agent, same tools

Same agent, same tools

Skills, MCP servers, and Code CLI integration work the same regardless of which provider is active.

FEATURES

Provider-agnostic by design

🔀

Multi-provider routing

Switch between Claude and other configured providers per session or per task.

🧰

Full tooling access

TinyElf skills, MCP servers, and extensions work the same whichever provider is active.

HOW IT WORKS

Get started in two steps

  1. 01
    Install Elftia

    Install Elftia

    Download the desktop app for your platform.

  2. 02
    Add your Anthropic key

    Add your Anthropic key

    Open provider settings and paste in your Anthropic API key.

USE CASES

Where this fits

Coding with Claude

Coding with Claude

Use a Claude model as the reasoning engine behind Elftia’s coding agent.

Comparing providers

Comparing providers

Switch between Claude and other providers to compare output on the same task.

FAQ

Frequently asked questions

Do I need an Anthropic account?
Yes — Elftia routes requests to Anthropic using an API key you provide; Elftia does not resell model access.
Can I use Claude and another provider together?
Yes — Elftia’s multi-provider routing lets you configure several providers and choose per session or per task.

Bring your own Anthropic key to Elftia

Free to download, bring your own API key.

Download Elftia