follow_market
Track or stop tracking a Manifold prediction market. Provide the market ID and choose to follow for updates or unfollow.
Instructions
Follow or unfollow a market
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| contractId | Yes | Market ID | |
| follow | Yes | True to follow, false to unfollow |
Implementation Reference
- src/index.ts:107-110 (schema)Zod schema for follow_market tool: validates contractId (string) and follow (boolean).
const FollowMarketSchema = z.object({ contractId: z.string(), follow: z.boolean(), }); - src/index.ts:349-360 (registration)Registration of the 'follow_market' tool with name, description, and inputSchema for MCP.
{ name: 'follow_market', description: 'Follow or unfollow a market', inputSchema: { type: 'object', properties: { contractId: { type: 'string', description: 'Market ID' }, follow: { type: 'boolean', description: 'True to follow, false to unfollow' } }, required: ['contractId', 'follow'] } }, - src/index.ts:900-937 (handler)Handler for 'follow_market' tool: parses args with FollowMarketSchema, then POSTs to Manifold API /v0/follow-contract to follow or unfollow a market.
case 'follow_market': { const params = FollowMarketSchema.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/follow-contract`, { method: 'POST', headers: { 'Content-Type': 'application/json', Authorization: `Key ${apiKey}`, }, body: JSON.stringify({ contractId: params.contractId, follow: params.follow, }), }); if (!response.ok) { throw new McpError( ErrorCode.InternalError, `Manifold API error: ${response.statusText}` ); } return { content: [ { type: 'text', text: params.follow ? 'Now following market' : 'Unfollowed market', }, ], }; }