To access the Tribute API, you need to obtain an API key through the settings.
Open the Tribute web application in Telegram
Click on the three dots (⋯) in the upper right corner and select "Settings" from the context menu
Go to the "API Keys" section
Click the "Generate API Key" button and copy it to a safe place
The key is passed in the Api-Key header in every HTTPS request to the API.
Example using curl:
curl -X GET \
'https://tribute.tg/api/v1/shops' \
-H 'Api-Key: your_api_key_here'