How to Set Up the Fantasy Roundup – ESPN Cookie Sender

Fantasy sports news, analysis, and waiver wire advice.

By Fantasy Roundup · August 30, 2025 · Updated November 15, 2026

The Fantasy Roundup – ESPN Cookie Sender is the easiest way to securely connect your ESPN Fantasy leagues to Fantasy Roundup. Follow this quick setup guide and you’ll be syncing your teams in minutes. 👉 Download the extension from the Chrome Web Store Step 1: Pin the Extension (Recommended) Click the puzzle icon 🧩 in the Chrome toolbar.

Find Fantasy Roundup – ESPN Cookie Sender.

Click the pin 📌 so it stays visible for easy access.

Step 2: Log Into ESPN Open ESPN Fantasy Football in Chrome and make sure you are logged into your ESPN account. Step 3: Get Your API Key Log into your Fantasy Roundup account.

Go to the Sync Page.

Copy your API Key (example: XXXX-XXXX-XXXX-XXXX).

Step 4: Configure the Extension Open the extension and click Options.

Enter the email address you use for Fantasy Roundup (example: youremail@example.com).

Paste in your API Key (example: XXXX-XXXX-XXXX-XXXX).

Click Save.

Step 5: Send Cookies Return to the main extension screen.

Click Send Cookies.

Once successful, the Status will update to Successful.

Step 6: Sync Your League In ESPN, open the league you want to sync. The URL will look like this: https://fantasy.espn.com/football/team?leagueId=1234567&teamId=1&seasonId=2025

Copy the League ID (in this example: 1234567).

Paste the League ID into your Fantasy Roundup account.

✅ Done! This is a one-time process. We securely store your league connection so you don’t need to repeat it. Privacy Notice To keep your league data up to date, Fantasy Roundup securely stores an encrypted copy of your ESPN cookie when you sync. This cookie does not contain any human-readable or personal information.

It’s used only to periodically refresh your rosters and settings so our advice stays accurate.

Your privacy and security are our top priority. Troubleshooting If you run into issues: Go to your Chrome address bar and type: chrome://extensions/?id=bnmakcbphndcficjdjkcoaifckfblkeo

Make sure both are enabled: Allow in Incognito

Allow access to file URLs

If they’re already on, try toggling them off and back on.

Still stuck? Reach out to our support team at fsroundup@gmail.com. ⚡ With the Fantasy Roundup – ESPN Cookie Sender, syncing your league is fast, secure, and automatic—so you can focus on winning your championship.