Which receivers have the biggest gap between Kalshi and the other venues on yardage props this week?
What you get back: Receiving-yards props with each venue’s price side by side and the cheapest place to buy.
Connect Gemini to Kalshi and Polymarket
Quick Answer
to give Gemini live Kalshi and Polymarket prices, run gemini extensions install https://github.com/predictionmarketspicks/mcp in Gemini CLI — the extension connects to https://predictionmarketspicks.com/api/mcp/mcp?via=site-gemini. No API key: 37 of the 44 PredictionMarketsPicks tools answer right away.
MCP server URL — the extension points here
https://predictionmarketspicks.com/api/mcp/mcp?via=site-geminiSet it up in Gemini CLI
- Install Gemini CLI if you have not already, and sign in once.
- Run the command below. Gemini asks you to confirm the install; it adds the PredictionMarketsPicks extension and its server.
- Run gemini mcp list — predictionmarketspicks should read Connected. Then start Gemini and ask about a market.
Gemini CLI
gemini extensions install https://github.com/predictionmarketspicks/mcp
In the Gemini web app, Google lists a custom-app path for personal accounts in the US with Keep Activity on: Settings → Connected Apps → Add a custom app, then paste https://predictionmarketspicks.com/api/mcp/mcp?via=site-gemini. That path is from Google’s help article; we have not click-tested it yet.
Transcript
In a terminal, one command installs the PredictionMarketsPicks extension for Gemini CLI: gemini extensions install https://github.com/predictionmarketspicks/mcp. Running gemini mcp list shows the predictionmarketspicks server connected. Then a question in plain English, "Which Kalshi 15-minute markets are open right now?", makes Gemini call the fifteen_min_board tool and list every Kalshi 15-minute series with a window open, its YES price, close time, what it settles on and how often it settled up over the last 96 windows. In interactive mode Gemini asks you to approve the tool call; the demo uses -p with auto-approve to keep it short. No API key needed for the connector.
Five prompts to try in Gemini
Copy one into a new chat and swap in your own team, player or market.
Who wins Chiefs vs Chargers by the power ratings, and what is the projected score?
What you get back: Each side’s win probability from our power ratings, plus the projected score and cover odds.
Show Kalshi’s perpetual futures for Bitcoin and gold.
What you get back: Each perpetual’s price, 24-hour volume, open interest, maximum leverage and what funding has cost a long.
Convert +240 to an implied probability.
What you get back: The implied probability — the Kalshi price in cents that matches it — plus decimal odds.
My prior is 30%. A new poll is twice as likely if the candidate wins than if they lose. Update it.
What you get back: The posterior probability and each step of the update.
Gemini and prediction markets — frequently asked
What does the Gemini CLI extension install?
A small manifest and a context file from github.com/predictionmarketspicks/mcp. The extension itself runs no code on your machine — it points Gemini CLI at our hosted MCP server, which does the work and returns market data.
How do I update or remove the extension?
gemini extensions update predictionmarketspicks pulls the latest release; gemini extensions uninstall predictionmarketspicks removes it. Neither touches any other extension or setting.
Can Gemini see Kalshi prices without the extension?
Not live ones. Gemini can search the web, but a search result is a page snapshot, not the order book. The extension lets Gemini ask our tools for the price at the moment you ask.
Does this work in the Gemini web app, or only in Gemini CLI?
Gemini CLI is the tested path: the extension installs and gemini mcp list reads Connected. For the web app, Google’s help article describes a custom-app option for personal accounts in the US with Keep Activity on (Settings → Connected Apps → Add a custom app, then paste https://predictionmarketspicks.com/api/mcp/mcp?via=site-gemini). We have not click-tested that one. Either way it is the same server, and 37 of the 44 tools answer with no key.
Using ChatGPT, Claude, Cursor or Grok? Same URL — setup for every host → · what every tool returns →