SeatGeek MCP Server

Instructions

Implementation Reference

• src/tools/findEvents.ts:89-219 (handler)

  The primary implementation of the find_events tool, including name, description, input schema reference, and the async handler function that parses input, performs performer lookups if needed, fetches events from API, deduplicates, condenses data, and returns formatted results or error details.
  export const findEventsTool = { name: 'find_events', description: 'Search for events by performer, location, date, or venue. This tool is optimized for finding specific events based on user queries. If the query involves a performer, it first looks up the performer, then finds events for that performer. Otherwise, it searches events directly. Returns structured event data with venue information.', inputSchema: inputSchema, handler: async (args: any, extra: any) => { const params = EventsQuerySchema.parse(args); try { let data: any; // If we have a query parameter, first check if it's a performer if (params.q) { try { // First try to find performers with the query const performers = await searchPerformers(params.q, params.per_page, 1); // If we found performers, aggregate unique performer slugs and make Promise.all query if (performers.length > 0) { // Get unique performer slugs const uniqueSlugs = [...new Set(performers.map((p: any) => p.slug).filter(Boolean))] as string[]; if (uniqueSlugs.length > 0) { // Create promises for each unique performer slug const promises = uniqueSlugs.map(slug => { const query = buildQuery(params, slug); return fetchJson(EVENTS_ENDPOINT, query); }); // Execute all promises const results = await Promise.all(promises); // Merge events from all results data = { events: [] }; for (const result of results) { if (result.events && Array.isArray(result.events)) { data.events = data.events.concat(result.events); } } // Remove duplicates based on event id const eventIds = new Set(); data.events = data.events.filter((event: any) => { if (eventIds.has(event.id)) { return false; } eventIds.add(event.id); return true; }); } else { // If no valid slugs found, search events directly with the q parameter const query = buildQuery(params); data = await fetchJson(EVENTS_ENDPOINT, query); } } else { // If no performer found, search events directly with the q parameter const query = buildQuery(params); data = await fetchJson(EVENTS_ENDPOINT, query); } } catch (error) { // If performer lookup fails, fall back to direct event search console.warn('Failed to lookup performer, falling back to direct event search:', error); const query = buildQuery(params); data = await fetchJson(EVENTS_ENDPOINT, query); } } else { // If no q parameter, search events directly const query = buildQuery(params); data = await fetchJson(EVENTS_ENDPOINT, query); } if (params.format === 'json') { return { content: [ { type: 'text' as const, text: JSON.stringify(data, null, 2) } ] }; } const eventsRaw = data.events || []; const results: CondensedEvent[] = []; for (const item of eventsRaw) { try { // Condense the event data const condensedEvent = condenseEventData(item); results.push(condensedEvent); } catch (error) { // Skip invalid events console.warn('Skipping invalid event:', error); } } return { content: [ { type: 'text' as const, text: JSON.stringify(results, null, 2) } ] }; } catch (error) { console.error('Error in find_events handler:', error); // Provide more detailed error information const errorMessage = error instanceof Error ? error.message : 'Unknown error occurred'; const errorDetails = { error: 'API_REQUEST_FAILED', message: errorMessage, timestamp: new Date().toISOString(), endpoint: EVENTS_ENDPOINT, args: args }; return { content: [ { type: 'text' as const, text: JSON.stringify({ error: 'Failed to fetch events', details: errorDetails, suggestion: 'Please check your parameters and try again. Common issues include invalid search terms or venue codes.' }, null, 2) } ] }; } }, };
• src/tools/findEvents.ts:67-77 (schema)

  Zod-based input schema defining parameters for the find_events tool, including validation, defaults, and detailed descriptions for each field.
  const inputSchema = { q: z.string().optional().describe('Free-text search term. Use only when no other specific filters match the user request. Keep this text to pronouns if present in the user\'s query unless there are no pronouns in the query. Never duplicate information already captured in other parameters.'), venue_city: z.string().optional().describe('City name where the venue is located. Use full city name, e.g., "New York" or "Los Angeles".'), venue_state: z.string().optional().describe('State abbreviation where the venue is located, e.g., "CA" for California or "NY" for New York.'), venue_country: z.string().optional().describe('Country code where the venue is located, e.g., "US" for United States or "CA" for Canada.'), start_utc: z.string().optional().describe('Start date filter in ISO8601 UTC format (YYYY-MM-DD). Use for date ranges like "next month" or "this weekend".'), end_utc: z.string().optional().describe('End date filter in ISO8601 UTC format (YYYY-MM-DD). Use with start_utc to define date ranges.'), per_page: z.number().min(1).max(50).default(10).describe('Number of results to return per page (1-50). Default is 10.'), page: z.number().min(1).default(1).describe('Page number for pagination. Default is 1.'), format: z.enum(['structured', 'json']).default('structured').describe('Output format. Use "structured" for readable format (default) or "json" for raw API response. Only use "json" if explicitly requested.'), };
• src/server.ts:23-23 (registration)

  Registers the find_events tool with the MCP server by calling mcpServer.tool with the tool's name, description, inputSchema, and handler.
  mcpServer.tool(findEventsTool.name, findEventsTool.description, findEventsTool.inputSchema, findEventsTool.handler);
• src/tools/findEvents.ts:22-65 (helper)

  Helper function to construct query parameters for the events API search, handling performer-specific queries, venue filters, date ranges, pagination, and filtering out empty values.
  function buildQuery(params: EventsQuery, performerSlug?: string): Record<string, any> { const query: Record<string, any> = { per_page: Math.min(params.per_page, 50), page: params.page, }; // If we have a performer slug, use it instead of the general q parameter // and don't include venue information as requested if (performerSlug) { query["performers.slug"] = performerSlug; } else { // Use general q parameter and include venue information query.q = params.q; // Handle venue location - API expects flat format if (params.venue_city) { query["venue.city"] = params.venue_city; } if (params.venue_state) { query["venue.state"] = params.venue_state; } if (params.venue_country) { query["venue.country"] = params.venue_country; } } if (params.start_utc) { query["datetime_utc.gte"] = params.start_utc; } if (params.end_utc) { query["datetime_utc.lte"] = params.end_utc; } // Drop null/undefined values to avoid noisy query strings const filteredQuery: Record<string, any> = {}; for (const [key, value] of Object.entries(query)) { if (value !== null && value !== undefined && value !== '') { filteredQuery[key] = value; } } return filteredQuery; }
• src/tools/findEvents.ts:8-20 (schema)

  Internal Zod schema used for parsing and validating the tool input arguments within the handler.
  const EventsQuerySchema = z.object({ q: z.string().nullable().optional(), venue_city: z.string().nullable().optional(), venue_state: z.string().nullable().optional(), venue_country: z.string().nullable().optional(), start_utc: z.string().nullable().optional(), end_utc: z.string().nullable().optional(), per_page: z.number().min(1).max(50).default(10), page: z.number().min(1).default(1), format: z.enum(['structured', 'json']).default('structured'), }); type EventsQuery = z.infer<typeof EventsQuerySchema>;