cancel_bet
Cancel a limit order bet on Manifold Markets by specifying the bet ID to remove pending wagers from prediction markets.
Instructions
Cancel a limit order bet
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| betId | Yes | Bet ID to cancel |
Implementation Reference
- src/index.ts:650-682 (handler)Executes the cancel_bet tool: validates input with CancelBetSchema, authenticates with MANIFOLD_API_KEY, sends POST request to Manifold Markets API to cancel the specified bet, returns success message.
case 'cancel_bet': { const { betId } = CancelBetSchema.parse(args); const apiKey = process.env.MANIFOLD_API_KEY; if (!apiKey) { throw new McpError( ErrorCode.InternalError, 'MANIFOLD_API_KEY environment variable is required' ); } const response = await fetch(`${API_BASE}/v0/bet/cancel/${betId}`, { method: 'POST', headers: { Authorization: `Key ${apiKey}`, }, }); if (!response.ok) { throw new McpError( ErrorCode.InternalError, `Manifold API error: ${response.statusText}` ); } return { content: [ { type: 'text', text: 'Bet cancelled successfully', }, ], }; } - src/index.ts:88-90 (schema)Zod schema defining the input for cancel_bet tool: requires a 'betId' string.
const CancelBetSchema = z.object({ betId: z.string(), }); - src/index.ts:266-276 (registration)Registers the 'cancel_bet' tool in the MCP server's tool list, providing name, description, and input schema for listing available tools.
{ name: 'cancel_bet', description: 'Cancel a limit order bet', inputSchema: { type: 'object', properties: { betId: { type: 'string', description: 'Bet ID to cancel' }, }, required: ['betId'], }, },