With the Kalshi Eye connector, Claude can look things up in the archive for you: find Kalshi, Polymarket and Limitless markets, read how a market traded, check what was recorded, and hand you the files. You sign in with your Kalshi Eye account; there is no key to copy.
Updated November 13, 2026.
Add the connector
- In Claude on the web or desktop, open Customize, then Connectors, then Add, then Add custom connector.
- Name it Kalshi Eye and paste
https://kalshieye.com/mcp. Keep the sign-in settings Claude detects and press Add. - Press Connect. A Kalshi Eye page opens: log in or create an account, then press Allow.
On Team and Enterprise plans, an owner adds it first under Organization settings, then Connectors; members then press Connect. Once added on the web or desktop, it shows up in the phone apps too.
Use it in a chat
Open + (or type /), then Connectors, and turn Kalshi Eye on for the conversation. Then ask in plain English. Claude picks the tools; you can see each call it makes.
| To | Ask | Tool |
|---|---|---|
| Find markets | Which Kalshi markets track the Fed's next rate decision, and which are still open? | search, list_markets |
| Read a market | What were the terms of KXBTC15M-26OCT251200-00, and how did it settle? | get_market |
| See how it traded | How did the Bills vs Rams market move in its last few hours on October 12? | market_price_history |
| Check coverage | Is the recorder running, and how complete was last week on each venue? | recording_status |
| Size a download | Which series have Kraken order book files, and how big is a BTC day? | dataset_series |
| Get files | List the trades files for KXBTC15M on October 27 and give me download links. | list_files, download_links |
Prices come back as dollars between 0 and 1, which read as the market's probability, and times in UTC. Ask for Eastern time if you want it. Every tool is listed on the MCP server page.
What it can't do
- It only reads: it can't trade, place orders, or change your account, plan or keys.
- It doesn't open the files. For analysis over many markets or days, give the links to a coding agent, or use Claude Code, which downloads and reads them itself.
Limits
Each tool call uses one or two API requests from your plan's daily limit. Explorer's 100 requests a day cover about 50 to 100 calls, so a long session can run out; it resets at midnight UTC. Downloading the files from the links counts toward your monthly download allowance. See plans.
Disconnect
Open API and press Disconnect next to Claude under Connected apps. Removing the connector inside Claude doesn't end its access, so do both.
Questions
Do I need a paid Claude plan?
No. Free Claude accounts can add one custom connector; paid plans can add more. On Team and Enterprise, an owner adds it for the organization first.
Do I need a paid Kalshi Eye plan?
No. A free Explorer account connects and can search every market, read price history and coverage, and list files. Download links follow your plan: Explorer gets the reference files on any day and every dataset of the free sample, BTC 15 min on October 25, 2026.
Can Claude backtest a strategy with it?
Not in a chat. A backtest needs the files on disk and code that runs over them. Claude Code can do that: see the guide to backtesting with an AI agent.
Next
- Claude Code, Codex and Cursor: let an agent download the files and work with them.
- Backtest with an AI agent: from a question to a tested strategy.
- ChatGPT: the same connector there.