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Place a single limit or market order on a prediction market
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Based on SOC occupation classification
Create, cancel, or manage multiple orders in a single batch
Place and manage prediction market orders on Context Markets
Build an embeddable single-market prediction widget with buy/sell buttons
Build a portfolio dashboard showing positions, P&L, balances, and claimable winnings
Build prediction market frontends with the Context React SDK
Scaffold a full prediction market trading UI with market list, orders, and portfolio
| name | context-trade-place-order |
| description | Place a single limit or market order on a prediction market |
Buy or sell outcome shares on a prediction market with a limit or market order.
The user wants to buy or sell YES or NO shares on a specific market.
context_get_quotes (MCP) or ctx.markets.quotes(marketId) to see bid/ask/last.context_simulate_trade (MCP) or ctx.markets.simulate(marketId, { side, amount, amountType: "usd" }) to preview fill price, cost, and slippage.context_place_order({ marketId, outcome: "yes", side: "buy", size: 10, price: 45 }) — omit price for a market orderctx.orders.create({ marketId, outcome: "yes", side: "buy", priceCents: 45, size: 10 })ctx.orders.createMarket({ marketId, outcome: "yes", side: "buy", maxPriceCents: 99, maxSize: 10 })context orders create --market <id> --outcome yes --side buy --price 45 --size 10context_my_orders or ctx.orders.mine(marketId) to confirm the order is open.context_account_setup or ctx.account.status(). If not ready, run setup and deposit before placing orders.maxPriceCents and maxSize, not priceCents and size. This caps your worst-case fill price.makerRoleConstraint: 1 (MAKER_ONLY). This causes InvalidRoleConstraint reverts that block the entire market. Always use the default (0 = ANY).context_my_orders or ctx.orders.mine(marketId) — your order should appear with status "open".order object — status, percentFilled, and remainingSize should reflect immediate execution.