: Once you have the user_id , you can fetch all leagues for a specific sport and season (e.g., nfl/2024 ).
: Sleeper allows up to 1,000 calls per minute ; ensure your MaxCPM setting in the .svb file does not exceed this to avoid IP blocking. sleeper API.svb
: You do not need to include an Authorization header, as the API is public and read-only. How to use this file Save the code above into a file named sleeper API.svb . Import it into your SilverBullet instance. : Once you have the user_id , you
To create a "sleeper API.svb" configuration for (an automation tool), you are essentially building a script that interacts with the Sleeper Fantasy API . How to use this file Save the code
[SETTINGS] { "Name": "Sleeper API User Checker", "SuggestedBots": 1, "LastModified": "2026-04-28T05:53:00", "AdditionalInfo": "Fetches Sleeper User and League data", "Author": "AdaptiveCollaborator", "MaxCPM": 1000 } [BLOCKS] # 1. REQUEST USER INFORMATION # Replace with the input from your wordlist REQUEST GET "https://sleeper.app " HEADER "User-Agent: Mozilla/5.0" HEADER "Accept: application/json" # 2. PARSE USER ID PARSE " " JSON "user_id" -> VAR "USERID" # 3. REQUEST LEAGUES FOR USER # Uses the parsed USERID to find active leagues for the current year REQUEST GET "https://sleeper.app /leagues/nfl/2024" HEADER "User-Agent: Mozilla/5.0" HEADER "Accept: application/json" # 4. CAPTURE LEAGUE NAMES PARSE " " JSON "name" AS_LIST=TRUE -> CAP "LEAGUES" # 5. DETERMINE SUCCESS KEYCHECK KEYCHAIN Success OR VALUE " " IS_NOT_EMPTY KEYCHAIN Failure OR VALUE " " CONTAINS "null" Use code with caution. Copied to clipboard Key Integration Points
: Use https://sleeper.app to retrieve core details like user_id and display_name .