Free dynasty trade calculator
Check whether a dynasty fantasy football trade is fair. Get a trade value ledger for both sides, a verdict for contenders and rebuilders, and the smallest counter that evens it out.
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How do you tell if a dynasty trade is fair?
Compare both sides on long-term value, such as dynasty rankings and the trend in draft position, and on this season, such as rest-of-season ranks and projections, then weigh age. This tool builds that ledger and suggests the smallest counter that evens it out.
Fill in the prompt
Edit the details in brackets with every player and pick on both sides of the offer and your league format, then pick the AI assistant to run it in.
Firecrawl Alexandria runs the lookups
Your assistant calls 6 tools in order, from Fantasy Football Calculator NFL rankings and ADP, Draft Sharks NFL rankings, StartWho NFL fantasy projections and ESPN, and cites the record behind every figure.
Get the answer
You get a value ledger for each side, a verdict for a contender and for a rebuilder, and the smallest counter-offer that makes it fair. Anything a source couldn't find is marked, not guessed.
Who is the free dynasty trade calculator for?
Dynasty fantasy football managers weighing a trade.
Contenders
See whether a trade helps you win this season without overpaying in future value.
Rebuilders
Check whether you're getting enough long-term value for an aging star.
Managers making a counter-offer
Get the smallest change that turns a lopsided offer into a fair one.
Where does the data come from?
From the sources below, called in order through Firecrawl Alexandria. Each row shows the call's price in credits and its track record across every agent. Empty means the call worked and found nothing.
Fantasy Football Calculator NFL rankings and ADPRankingsPrice5 creditsMedian227 msSuccess100%Empty0%
Draft Sharks NFL rankingsRos rankingsPrice5 creditsMedian505 msSuccess100%Empty0%
StartWho NFL fantasy projectionsSeason projectionsPrice5 creditsMedian–Success–Empty–
ESPNSearchPrice5 creditsMedian–Success–Empty–
What steps does the assistant follow?
The tool's written instructions: which data source to call at each step, what to pull from it and how to lay out the answer. Copy them into any assistant connected to Firecrawl with an API key to run the tool from your own chat.
Explore more free tools
Ready-made prompts for ChatGPT, Claude and other assistants, each backed by the data sources it names.
Frequently asked questions
- How is it different from a trade value chart?
- A chart gives one number per player. This tool reads dynasty rankings, average draft position now and last season, rest-of-season ranks, season projections and each player's age and three-year production, so you see why a side wins.
- Does it handle superflex leagues?
- Yes. Tell it your format and it reads superflex rest-of-season rankings, which value quarterbacks higher.
- Is this tool free?
- Yes. The prompt, the steps and the instructions are free to use. When your assistant runs the tool through Firecrawl Alexandria, each data call bills its listed price in credits, and every data source shows that price before it's called.
- Which AI assistants can run it?
- Any assistant connected to Firecrawl with an API key, including ChatGPT, Claude, Claude Code, Codex and Cursor. Pick one in the prompt box and your request opens there with a link to this tool.
- Do I need to sign up?
- You need a Firecrawl account, with your assistant connected through its API key. Firecrawl Alexandria doesn't run in keyless mode. If your assistant isn't connected yet, the prompt tells it how to set that up. Some data providers ask an admin on your Firecrawl team to accept their terms before the first call.