Add Kelly to ChatGPT
Ask ChatGPT about your fantasy team or a bet, and it answers with Kelly’s numbers, each with its source and the time it was true.
Who can’t add it
Kelly isn’t open yet: only Kelly staff can sign in for now, so anyone else’s sign-in is refused. Kelly is for people 21 and older.
Free, Plus and Go plans can’t add a custom MCP server. On ChatGPT Pro, ChatGPT runs read tools only, which covers every Kelly tool. Business, Enterprise and Edu workspaces get every tool.
Server URL
https://mcp.askkelly.ai/mcp/cardsGames, markets, players, explanations and odds maths, with a free Kelly account. Prices and scores show in a live card that updates as they move.
Not yet tested with Kelly in ChatGPT. These steps follow OpenAI’s help page as read on Oct 16, 2026.
What you need
ChatGPT Pro, or a Business, Enterprise or Edu workspace, on the web. On Business, admins and owners add it.
Add it
On the web, open Plugins, choose the plus button, then Add custom MCP server.
Name it kelly and paste the server URL under Connection. If ChatGPT asks for a protocol, choose Streamable HTTP. If it shows an authentication choice, pick OAuth; if it doesn’t, ChatGPT finds Kelly’s sign-in by itself. Tick the box that says you understand, and choose Create as a plugin.
https://mcp.askkelly.ai/mcp/cardsSign in to Kelly when ChatGPT asks. Then start a new chat, type @, choose kelly, and ask your question. ChatGPT uses Kelly only in the message where you pick it, so @mention kelly again for follow-ups.
Older workspaces reach it through Settings, then Apps, then Create.
On a Business, Enterprise or Edu workspace
An admin or owner adds it with the steps above.
A workspace admin publishes it under Workspace settings, then Apps, then Drafts.
Members then find kelly under Plugins and sign in to Kelly.
OpenAI’s help page says Business apps “cannot be updated after publishing”.
On your phone
Not on your phone: OpenAI’s help page says MCP apps are “web only.”
Your first conversation
Ask in a new chat and name Kelly, so the AI uses Kelly’s tools rather than a web search.
For your fantasy team
Thinking about my fantasy lineup this week. Use Kelly to walk me through it, step by step, starting with what to check first.
For a bet you’re weighing
Looking at a bet on tonight’s game. Use Kelly to walk me through the market, step by step, starting with what to check first.
The first time you sign in
- What signing in creates
- A free Kelly account under the address you sign in with, or your existing account if you have one. The AI gets its own access, which you can end at any time.
- What works at once
- Games, markets, players, explanations and odds maths, each answer with its sources and the time it was true.
- What asks for a step on askkelly.ai
- Confirming you’re 21 or older, which stake tools need, happens once on askkelly.ai; the AI says so when it comes up. Pro tools need a Kelly Pro plan.
Three things to ask first
- Compare two running backs on my roster for this week’s flex spot.
- Answered by
compare_players - What does the no-vig market say about tonight’s spread?
- Answered by
get_market - What implied probability is +150, and what does a $20 ticket pay?
- Answered by
calculate_odds
What it won’t do
- Place a bet, move money or touch a sportsbook account.
- Rank bets or list the day’s top edges. Kelly answers the question you ask.
- Put a stake on Kelly’s own edges.
- Show any one sportsbook’s prices outside askkelly.ai. Through the AI, Kelly gives derived values such as the no-vig line.
- Read your fantasy leagues. Connecting a league isn’t open yet.
What the AI receives from Kelly is held by the AI’s provider, under your account there. Ending Kelly’s access stops new access, but it doesn’t recall what the AI already has.
If it doesn’t work
- Sign-in is refused
- While Kelly isn’t open, only staff accounts can sign in. Otherwise, sign in with the same address you use on askkelly.ai.
- No Kelly tools are listed
- Disconnect Kelly under Plugins in ChatGPT, then add it again with the server URL above.
- The AI can’t see your own data
- Kelly can’t read your leagues or tickets yet. Ask about games, markets, players and odds instead.
- An answer stops partway
- Long results can be cut short. Ask the AI for the rest.
