list_courses
duolingo.comReturns every available language course from https://www.duolingo.com in one page, including source and target language identifiers, names, learner totals, phase, and progress. Optionally filters courses by the language of instruction.
Playground
Runs on Notte and spends your workspace credits — what comes back is the live response, not a sample.
What is list_courses?
Returns every available language course from https://www.duolingo.com in one page, including source and target language identifiers, names, learner totals, phase, and progress. Optionally filters courses by the language of instruction. It runs on Notte's browser infrastructure and returns structured JSON, so you can call it like any other API — pass from_language and get the result back without maintaining a scraper.
Response
{
"total": 0,
"courses": [
{
"phase": 0,
"progress": 0,
"num_learners": 0,
"from_language": "<string>",
"from_language_id": "<string>",
"learning_language": "<string>",
"from_language_name": "<string>",
"learning_language_id": "<string>",
"learning_language_name": "<string>"
}
],
"filter_applied": "<string>"
}Call it
curl --location 'https://us-prod.notte.cc/functions/fa99d6df-d55b-454d-b67b-20aca6f17825/runs/start' \
--header 'x-notte-api-key: YOUR_API_KEY' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer YOUR_API_KEY' \
--data '{
"function_id": "fa99d6df-d55b-454d-b67b-20aca6f17825",
"variables": {
"from_language": ""
}
}'Ask an agent
Paste this into Claude Code, Cursor or any MCP client to have an agent call this function for you.
Use the Anything API MCP server (https://anything.notte.cc/mcp). Call run(function_id="fa99d6df-d55b-454d-b67b-20aca6f17825") — the "list_courses" function, which returns every available language course from https://www.duolingo.com in one page, including source and target language identifiers, names, learner totals, phase, and progress. Optionally filters courses by the language of instruction.. It takes from_language (str). Return the result as structured JSON.