Which NFL props this week are cheapest on Kalshi compared with the other venues?
What you get back: Each prop with its price on every venue that lists it and the best place to buy it.
Connect ChatGPT to Kalshi and Polymarket
Quick Answer
to give ChatGPT live Kalshi and Polymarket prices, turn on developer mode under Settings → Apps & Connectors → Advanced, create a connector with https://predictionmarketspicks.com/api/mcp/connect and sign in with a free PredictionMarketsPicks account: about 30 seconds, no API key, and the full board once a day. Prefer no account? https://predictionmarketspicks.com/api/mcp/mcp?via=site-chatgpt with no authentication works too, and 37 of the 44 tools answer on it right away.
Connector URL — free account, full board once a day
https://predictionmarketspicks.com/api/mcp/connectNo account? Use this URL with “No authentication”
https://predictionmarketspicks.com/api/mcp/mcp?via=site-chatgptNo sign-in at all: 37 of the 44 tools answer, with a lighter daily allowance.
Set it up in ChatGPT
- In ChatGPT open Settings → Apps & Connectors → Advanced settings and turn on developer mode.
- Back in Apps & Connectors choose Create, name it PredictionMarketsPicks, paste https://predictionmarketspicks.com/api/mcp/connect as the MCP server URL and choose OAuth.
- ChatGPT opens a PredictionMarketsPicks window: enter your email and the one-time code, allow access, and you are signed in. Members get Pro depth on the same connector.
- In a new chat open the + menu, pick developer mode and enable PredictionMarketsPicks, then ask about a market.
Developer mode is a ChatGPT setting for paid plans; OpenAI names the plans and the exact menu labels, and both change. If your menus read differently, the URL and the OAuth sign-in are the parts that matter.
Five prompts to try in ChatGPT
Copy one into a new chat and swap in your own team, player or market.
What are the odds the Fed cuts at the next meeting, Kalshi versus Polymarket?
What you get back: The next FOMC meeting’s outcomes on both venues and CME futures, with the gap in percentage points.
Which 2026 Senate races are closest according to Kalshi?
What you get back: Every 2026 Senate seat with its live Kalshi price and rating, closest race first.
Show me the 15-minute Bitcoin and gold contracts open right now.
What you get back: Each open 15-minute window: YES price, the level it settles against and when it closes.
A contract trades at 41¢ and I think it is 50%. Is it mispriced?
What you get back: Your expected-value edge in percent and a BUY, SELL or SKIP read.
ChatGPT and prediction markets — frequently asked
Does ChatGPT know live Kalshi prices without a connector?
No. ChatGPT’s model has no live order-book feed, and a web search returns a page that may be hours old. The connector lets ChatGPT call our tools, which read the current Kalshi and Polymarket prices at the moment you ask.
Is the ChatGPT connector free?
Yes. The sign-in connector needs only a free account, and the no-account URL needs nothing at all: 37 of the 44 tools answer either way. A Pro membership adds the model’s edge calls; everything else, including the NFL prop board and the Fed odds, is free.
Can ChatGPT place a trade on Kalshi through this connector?
No. Every tool is read-only: prices, probabilities and calculations. Trades happen on the exchange itself, with your own account.
Why does ChatGPT sometimes answer without calling the connector?
ChatGPT decides when a tool is useful. Naming the market or the venue in your question (“on Kalshi”, “Polymarket price”) makes the call far more likely, and asking for a live number almost always triggers it.
Using Claude, Gemini, Cursor or Grok? setup for every host → · what every tool returns →