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Getting started

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Sign up for a free account to access Slamdex tools. You can register with your email address or continue with Google for a faster setup.

Email Registration
  1. Click Login in the top-right corner, then Create one today
  2. Enter your name, email address, and a password
  3. Check your inbox for a verification email and click the link
  4. Log in and you're ready to go
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Sign in with Google
  1. Click Login in the top-right corner
  2. Choose Continue with Google
  3. Select your Google account — no verification needed
  4. You're in immediately
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Connect your fantasy league
The step that unlocks personalised analysis for your roster.

Connecting your league is the most important step. Connecting your league unlocks personalized team analysis, matchup tracking, trade evaluation, and waiver recommendations built around your actual roster.

Fantrax
ESPN
Yahoo

Head to My Leagues and follow the guided steps for your platform. Each provider's credentials guide is in the Connecting your league section below.

Go to My Leagues

Connecting your league

Find your Fantrax Secret ID
Copy it from the Information tile on your Fantrax profile.
Getting Your Fantrax Secret ID
To obtain your Secret ID, follow these steps:

1. Log in to your Fantrax account .
2. Go to your Profile.
3. Copy the Secret ID from the Information tile.

Screenshot showing where to find the Fantrax Secret ID
Find your ESPN SWID and espn_s2
Pull both values from your browser cookies in under a minute.
Getting ESPN credentials

Login to https://fantasy.espn.com, press F12 in your browser and follow the steps outlined below.

To obtain the SWID, follow steps 1 to 4 and copy the SWID code, excluding the curly brackets {}.
SWID Example
To obtain the espn_s2, follow steps 1 to 4 and copy the espn_s2 code.
espn_s2 Example
Sign in to Yahoo and switch accounts
How to log in, and how to swap to a different Yahoo account.
Switching between Yahoo accounts
To switch between Yahoo accounts, follow these steps:

1. Open Yahoo on your browser.
2. Click your account management icon.
3. Click on "Sign out".

Screenshot showing where to find the Yahoo logout ID
Import your Fantrax schedule
Copy your matchups page across so periods line up correctly.

Click Import from Fantrax. Slamdex reads every scoring period from the Fantrax API, including the playoff rounds that Fantrax shows on a separate Playoffs tab, so there is nothing to paste.

If the import fails, paste the schedule as a fallback:

  1. Make sure you are logged in to Fantrax in your browser.
  2. Open your league's Matchups page on Fantrax.
  3. On the Regular Season tab press Ctrl + A, then Ctrl + C, and paste into the box with Ctrl + V.
  4. Switch to the Playoffs tab and repeat, pasting below the regular-season text.
  5. Click Save at the top of the page.

Drafting

Use the ESPN Draft Tracker extension
Track an ESPN live draft in real time from Google Chrome.
Important Notice!

ESPN Live Draft is only supported in Google Chrome using our official extension: Slamdex Draft Tracker

How to use the Draft Tracker extension

Install the extension from: Slamdex Draft Tracker

Note: tracking only works in a league you have already connected to Slamdex. ESPN mock drafts run in a temporary league that is not linked to your account, so their picks cannot be tracked — the extension will log League not found in the console.
To start tracking drafted players click the "Start draft tracking" button.
Start Tracking Demo
To verify that the tracker is updating drafted players, open Chrome DevTools (F12) and look for such messages in the console tab.
Console Logs Example
To stop tracking drafted players click the "Stop draft tracking" button.
Stop Tracking Demo
Note: You can close the ESPN live draft page at any time and resume tracking later by repeating the above steps.
Read the ADP tracker
What average draft position means, and how the platforms differ.

Average Draft Position explained

ADP — Average Draft Position — tells you where a player is being drafted, on average, across hundreds of real fantasy basketball drafts. A player with an ADP of 12.3 is typically selected with the 12th or 13th pick. ADP is the single most practical data point when you walk into a draft: it tells you what the market thinks, so you know when to target a player and when you can afford to wait a round.

How Fantrax, Yahoo, and ESPN ADP differ

Fantrax drafts skew toward deeper, more competitive leagues — often 12- to 16-team formats with expanded rosters and more categories. As a result, specialists and two-way contributors draft higher on Fantrax than elsewhere. Yahoo attracts the largest and most casual player base. Marquee names, stars with brand recognition, and high-scoring guards tend to go earlier on Yahoo than their production strictly warrants. ESPN leagues sit between the two: moderately competitive, slightly biased toward points-league formats and big-name recognition. Comparing the three ADPs side by side lets you spot platform arbitrage — players who are systematically over- or under-valued on one platform versus another.

How to use the ADP tracker

Sort by Avg ADP (default) to see the consensus draft board. Sort by any single-platform column to see how that platform diverges from the consensus. Use the position filter pills to narrow down to your target slots. The "Top N" toggle shows the players most likely to appear in your draft. On the tracker, every player name links to their full player page — check their schedule strength, injury history, and stat projections before committing a pick.

ADP data is refreshed daily from live draft activity across all three platforms. Preseason values shift quickly in the first weeks of the offseason; in-season values reflect recent performance and injury news. Check back before your draft.

The tools

What each tool does
A short tour of every tool and where to find it.

Team Summary

Get a full picture of your team's performance. Track category strengths and spot which players are carrying you.

View Summary

Head-to-Head

Analyze your current matchup in detail. Compare projected stats against your opponent live as games are played.

Matchup Tool

Trade Analyzer

Evaluate any trade before you accept. See how deals affect your team's output across all categories, or press Find deals to get 1-for-1 offers that lift both teams.

Analyze Trade

Waiver Wire

Find the best available players on your waiver wire. Filter by position or category need.

Waiver Finder

DFS Optimizer

Build winning DK and FD lineups. Use Solid, Calculated, or Aggressive strategies for tonight's slate.

Optimize Layouts

Depth Charts

Stay current on every team's rotation. Our charts reflect the latest injuries and lineup decisions.

View Charts

Claude AI

Connect via Claude.ai (web)
Add Slamdex as a custom connector — no installation needed.
1
Open Connections in Claude.ai

Log in to claude.ai, click your profile icon (bottom-left), go to Settings → Connections, then click "Add custom connector".

2
Connect via URL

Copy this server URL. Your unique API token is already embedded for safety.

https://slamdex.com/mcp/server/?api_key=YOUR_TOKEN_HERE
Keep this link private: it contains your access key.
3
Start Chatting

Open a new chat and start asking questions about your rosters, free agents, or matchups!

Connect via Claude Desktop
Edit the desktop config file to add the Slamdex MCP server.
This method requires Node.js installed on your computer. Your configuration file is typically found at %APPDATA%\Claude\claude_desktop_config.json (Windows) or ~/Library/Application Support/ (Mac).
JSON Configuration
{
  "mcpServers": {
    "slamdex": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://slamdex.com/mcp/server/",
        "--header",
        "X-Api-Key:YOUR_TOKEN_HERE"
      ]
    }
  }
}

After saving the file, Restart Claude Desktop for changes to take effect.

Prompts to try
Starter questions once Claude is connected to your league.
Show me the top 20 free agents in my Fantrax league.
Where does my team rank in each statistical category?
Who should I pick up from the waiver wire to improve my team?
Which positions are my biggest weaknesses based on my current roster?
Give me a draft strategy for my upcoming snake draft — my team needs rebounding and blocks.
Compare my roster to the league average and suggest trades.
Which categories can I still win in my matchup this week, and who should I stream?
What is my score in every league right now? Did I win last week?

ChatGPT

Connect via ChatGPT
Add Slamdex as a custom connector in ChatGPT Developer Mode.
1
Turn on Developer Mode

Requires ChatGPT Pro (or a Business/Enterprise/Edu account) — as of now, Plus does not support custom MCP connections. In ChatGPT, open Settings and use the search box to find Connectors or Apps (OpenAI has renamed this menu more than once), open its Advanced settings, and toggle on Developer mode. If you don't see it at all, it may not have reached your account yet in OpenAI's rollout.

2
Create a custom connector

From the same Connectors/Apps screen, click Create. Name it Slamdex, paste this server URL (your unique API token is already embedded), and set Authentication to No authentication. Click Scan Tools to let it detect Slamdex's tools, then Create to finish.

https://slamdex.com/mcp/server/?api_key=YOUR_TOKEN_HERE
Keep this link private: it contains your access key.
3
Enable it in a chat

Start a new chat, open the + / tools menu, and turn on the Slamdex connector under Developer Mode tools. It's a per-conversation toggle, so turn it on in any new chat where you want to ask about your rosters, free agents, or matchups.

Gemini

Connect via Gemini
Add Slamdex as a custom app in Gemini Spark.
1
Check you're eligible

Gemini's custom app connections (part of Gemini Spark) currently require a Google AI Pro or Ultra subscription — the free tier and the cheaper AI Plus tier don't have it. It's also US-only right now (not yet available in the EEA, UK, Switzerland, or Nigeria), requires an account age of 18+, and needs your Google Account's Keep Activity setting turned on.

2
Add Slamdex as a custom app

On gemini.google.com, go to Settings & help → Connected Apps, find Custom apps for Spark, and click Add a custom app. Paste this server URL (your unique API token is already embedded) as the MCP server URL. Your token is enough on its own — if Gemini shows an "Advanced features" section asking for credentials, you shouldn't need to fill it in.

https://slamdex.com/mcp/server/?api_key=YOUR_TOKEN_HERE
Keep this link private: it contains your access key.
3
Use it in a chat

Start a new Gemini Spark session and bring in the Slamdex custom app, then ask about your rosters, free agents, or matchups.

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