Duolingo FAQs

Name: Duolingo
Author: udondan

Question 1

Is this an official Duolingo API or library?

Accepted Answer

No, this tool directly interacts with the unofficial Duolingo REST API. It is built natively in TypeScript and does not rely on any official third-party Duolingo library dependencies, offering direct control and interaction.

Question 2

What is @udondan/duolingo?

Accepted Answer

@udondan/duolingo is a TypeScript package that provides both an API client library and an MCP (Model Context Protocol) server. It enables programmatic interaction with the Duolingo platform for developers and integrates read-only tools for LLM agents to access Duolingo data.

Question 3

What kind of Duolingo data can I access?

Accepted Answer

You can access a wide range of Duolingo data including user account information, streak data, daily XP progress, various courses (language, math, chess, music), friends, shop items, health, language-specific progress details, known words, and even TTS audio URLs for words.

Question 4

Are the MCP server tools safe and read-only?

Accepted Answer

Yes, all tools provided by the MCP server are strictly read-only. This means the server can retrieve information from your Duolingo account but cannot make any modifications to your progress, settings, or any other data.

Question 5

How do I authenticate to use the Duolingo API client or MCP server?

Accepted Answer

Authentication requires a Duolingo JWT token. You can obtain this token by logging into duolingo.com in your browser, opening the developer console, and running a simple JavaScript command provided in the package's documentation to extract it from your cookies.

Duolingo

Duolingo

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