Strava MCP Server

Instructions

Implementation Reference

• src/tools/getSegmentLeaderboard.ts:83-121 (handler)

  The execute function for the 'get-segment-leaderboard' tool, which fetches data from the Strava client and formats it for output.

  execute: async ({ segmentId, gender, age_group, weight_class, following = false, club_id, date_range, per_page = 10, page = 1 }: GetSegmentLeaderboardParams) => {
      const token = process.env.STRAVA_ACCESS_TOKEN;
  
      if (!token) {
          console.error("Missing STRAVA_ACCESS_TOKEN environment variable.");
          return {
              content: [{ type: 'text' as const, text: 'Configuration error: Missing Strava access token.' }],
              isError: true
          };
      }
  
      try {
          console.error(`Fetching leaderboard for segment ID: ${segmentId}...`);
          const leaderboard = await fetchSegmentLeaderboard(token, segmentId, {
              gender, age_group, weight_class, following, club_id, date_range, per_page, page
          });
          const formatted = formatLeaderboard(leaderboard, segmentId);
  
          console.error(`Successfully fetched leaderboard for segment ${segmentId} (${leaderboard.entry_count} entries)`);
          return { content: [{ type: 'text' as const, text: formatted }] };
      } catch (error) {
          const errorMessage = error instanceof Error ? error.message : String(error);
          console.error(`Error fetching segment leaderboard ${segmentId}: ${errorMessage}`);
  
          let userFriendlyMessage;
          if (errorMessage.startsWith("SUBSCRIPTION_REQUIRED:")) {
              userFriendlyMessage = `🔒 Accessing this segment leaderboard (ID: ${segmentId}) requires a Strava subscription. Please check your subscription status.`;
          } else if (errorMessage.includes("Record Not Found") || errorMessage.includes("404")) {
              userFriendlyMessage = `Segment with ID ${segmentId} not found.`;
          } else {
              userFriendlyMessage = `An unexpected error occurred while fetching leaderboard for segment ${segmentId}. Details: ${errorMessage}`;
          }
  
          return {
              content: [{ type: 'text' as const, text: `❌ ${userFriendlyMessage}` }],
              isError: true
          };
      }
  }

• src/tools/getSegmentLeaderboard.ts:7-35 (schema)

  The Zod schema for input validation for the 'get-segment-leaderboard' tool.

  export const inputSchema = z.object({
      segmentId: z.number().int().positive().describe(
          'The unique identifier of the segment to fetch the leaderboard for.'
      ),
      gender: z.enum(['M', 'F']).optional().describe(
          'Filter by gender. M for male, F for female.'
      ),
      age_group: z.enum(['0_19', '20_24', '25_34', '35_44', '45_54', '55_64', '65_69', '70_74', '75_plus']).optional().describe(
          'Filter by age group.'
      ),
      weight_class: z.enum(['0_54', '55_64', '65_74', '75_84', '85_94', '95_plus']).optional().describe(
          'Filter by weight class in kg.'
      ),
      following: z.boolean().optional().default(false).describe(
          'If true, filter to only athletes the authenticated user follows.'
      ),
      club_id: z.number().int().optional().describe(
          'Filter to only athletes in the specified club.'
      ),
      date_range: z.enum(['this_year', 'this_month', 'this_week', 'today']).optional().describe(
          'Filter by date range for efforts.'
      ),
      per_page: z.number().int().min(1).max(200).optional().default(10).describe(
          'Number of entries per page (max 200, default 10).'
      ),
      page: z.number().int().min(1).optional().default(1).describe(
          'Page number for pagination.'
      )
  });

• src/tools/getSegmentLeaderboard.ts:71-122 (registration)

  The registration and tool definition object for 'get-segment-leaderboard'.

  export const getSegmentLeaderboardTool = {
      name: 'get-segment-leaderboard',
      description:
          'Retrieves the leaderboard for a specific Strava segment. Shows top performances with times, ' +
          'power, and heart rate data. Supports filtering by gender, age group, weight class, club, ' +
          'date range, and followed athletes.\n\n' +
          'Use this to:\n' +
          '- See top performances on a segment\n' +
          '- Compare your efforts against others\n' +
          '- Filter by demographics or time period\n' +
          '- Check if you have a chance at a top position',
      inputSchema,
      execute: async ({ segmentId, gender, age_group, weight_class, following = false, club_id, date_range, per_page = 10, page = 1 }: GetSegmentLeaderboardParams) => {
          const token = process.env.STRAVA_ACCESS_TOKEN;
  
          if (!token) {
              console.error("Missing STRAVA_ACCESS_TOKEN environment variable.");
              return {
                  content: [{ type: 'text' as const, text: 'Configuration error: Missing Strava access token.' }],
                  isError: true
              };
          }
  
          try {
              console.error(`Fetching leaderboard for segment ID: ${segmentId}...`);
              const leaderboard = await fetchSegmentLeaderboard(token, segmentId, {
                  gender, age_group, weight_class, following, club_id, date_range, per_page, page
              });
              const formatted = formatLeaderboard(leaderboard, segmentId);
  
              console.error(`Successfully fetched leaderboard for segment ${segmentId} (${leaderboard.entry_count} entries)`);
              return { content: [{ type: 'text' as const, text: formatted }] };
          } catch (error) {
              const errorMessage = error instanceof Error ? error.message : String(error);
              console.error(`Error fetching segment leaderboard ${segmentId}: ${errorMessage}`);
  
              let userFriendlyMessage;
              if (errorMessage.startsWith("SUBSCRIPTION_REQUIRED:")) {
                  userFriendlyMessage = `🔒 Accessing this segment leaderboard (ID: ${segmentId}) requires a Strava subscription. Please check your subscription status.`;
              } else if (errorMessage.includes("Record Not Found") || errorMessage.includes("404")) {
                  userFriendlyMessage = `Segment with ID ${segmentId} not found.`;
              } else {
                  userFriendlyMessage = `An unexpected error occurred while fetching leaderboard for segment ${segmentId}. Details: ${errorMessage}`;
              }
  
              return {
                  content: [{ type: 'text' as const, text: `❌ ${userFriendlyMessage}` }],
                  isError: true
              };
          }
      }
  };

• src/tools/getSegmentLeaderboard.ts:49-68 (helper)

  Helper function to format the leaderboard response into a human-readable table.

  export function formatLeaderboard(data: StravaLeaderboardResponse, segmentId: number): string {
      let output = `🏆 **Segment Leaderboard** (ID: ${segmentId})\n`;
      output += `   Total efforts: ${data.effort_count} | Entries shown: ${data.entries.length}\n\n`;
  
      if (data.entries.length === 0) {
          output += '   No entries found for the given filters.\n';
          return output;
      }
  
      output += '| Rank | Athlete | Time | Avg Power | Avg HR |\n';
      output += '|------|---------|------|-----------|--------|\n';
  
      for (const entry of data.entries) {
          const power = entry.average_watts ? `${Math.round(entry.average_watts)}W` : '-';
          const hr = entry.average_hr ? `${Math.round(entry.average_hr)}bpm` : '-';
          output += `| ${entry.rank} | ${entry.athlete_name} | ${formatTime(entry.elapsed_time)} | ${power} | ${hr} |\n`;
      }
  
      return output;
  }