# Polymarket

Prediction markets, prices, order books and orders with your own wallet. Not available in some countries, including the US.

- Category: Finance
- Connection: API key. Paste your own Polymarket API key once. It is stored encrypted and only your workspace uses it.
- Plans: Free: Not included; MCP only ($9/mo): 2,000 calls a month; Pro: 20,000 calls a month; Max: 20,000 calls a month
- Consent: Trading consent (https://krypton.bot/terms/#trading). Before Polymarket connects, you confirm the trading consent: Krypton is software, not a broker or adviser, nothing your bots say is financial advice, and you alone are responsible for every order, fee and loss. Orders ask you first unless you turn on autonomous trading.
- Vendor site: https://polymarket.com

## Tools

- Cancel order (`polymarket_cancel_order`): Cancels one open order by its order id.
- Cancel all (`polymarket_cancel_all`): Cancels every open order of the wallet.
- Price (`polymarket_price`): Best price to BUY or SELL an outcome token, plus the midpoint.
- Price history (`polymarket_price_history`): Price history of an outcome token, for charts.
- Balance (`polymarket_balance`): USDC balance and allowance available to trade.
- Market (`polymarket_market`): One market by condition id: outcomes with token ids and prices, tick size, neg risk.
- Open orders (`polymarket_open_orders`): The wallet's open orders, optionally for one market or token.
- Order book (`polymarket_order_book`): Order book (bids and asks) for an outcome token.
- Place order (`polymarket_place_order`): Places a limit order for an outcome token: price per share between 0 and 1 (a multiple of the market's tick size) and size in shares (2 decimals). FOK / FAK fill now or cancel; GTD needs expiration. The order approval line at the end says whether the user confirms each order. In dry-run mode the order is built and signed but not sent. Checked against the bot's per-order and daily limits.
- Positions (`polymarket_positions`): The connected wallet's open positions with size, average price and value.
- Search markets (`polymarket_search_markets`): Finds markets. With query: full-text search; without: the most traded open markets. Each market lists clobTokenIds (one token per outcome) used by the price and order tools.
- Trades (`polymarket_trades`): The wallet's recent trades.

## Skills included

- polymarket-risk-check: Check an order before it is placed. Use before any buy, sell, cancel or bet, live or dry run.
- polymarket-market-research: Find Polymarket markets on a topic and summarize prices, volume, order book depth and resolution rules.

## Questions

### How do I connect Polymarket to Krypton?

Open Integrations in Krypton, find Polymarket and choose Connect, then paste your API key. Every bot in the workspace can then use it, and you choose which bots get which apps.

### Which plan includes Polymarket?

MCP only with 2,000 calls a month, Pro and Max with 20,000. Calls are shared by every catalog app in the workspace. Past the monthly number they keep working from AI credits at $0.90 per 1,000 calls; the count resets on the 1st (UTC) and a retried call counts once.

### Can I use Polymarket from Claude or Cursor?

Yes. Connect it in your workspace, then add https://mcp.krypton.bot as a streamable HTTP MCP server with your kmcp_ workspace key. Calls count toward the same monthly number.

Back to the [MCP catalog](https://krypton.bot/mcp-catalog/).