mcp-appstore

Implementation Reference

• server.js:1389-1508 (handler)

  Handler function for the 'get_version_history' tool. Fetches the current version details for Android and iOS apps using google-play-scraper and app-store-scraper. Due to API limitations, only the current version is available for both platforms, not full history. Returns structured JSON with currentVersion, history (containing current), platform capabilities, and metadata.
  async ({ appId, platform, country, lang }) => { try { let versionInfo = { appId, platform, platformCapabilities: { fullHistoryAvailable: platform === "ios", description: platform === "ios" ? "Full version history available" : "Only latest version available due to Google Play Store limitations" }, currentVersion: null, history: [] }; if (platform === "android") { // Get app details from Google Play Store const appDetails = await memoizedGplay.app({ appId, country, lang }); // For Android, we can only get the current version versionInfo.currentVersion = { versionNumber: appDetails.version, releaseDate: new Date(appDetails.updated).toISOString(), changelog: appDetails.recentChanges || "No changelog provided", isCurrentVersion: true }; // Add current version to history array as well versionInfo.history = [versionInfo.currentVersion]; } else { // For iOS, first handle numeric vs bundle ID const isNumericId = /^\d+$/.test(appId); let numericId = appId; try { // Get app details from Apple App Store const lookupParams = isNumericId ? { id: appId, country, lang } : { appId: appId, country, lang }; console.error(`Getting app details for iOS app: ${JSON.stringify(lookupParams)}`); const appDetails = await memoizedAppStore.app(lookupParams); if (!appDetails) { throw new Error("No app details returned"); } // Create version info from the current version data const currentVersion = { versionNumber: appDetails.version || "Unknown version", releaseDate: appDetails.updated ? new Date(appDetails.updated).toISOString() : new Date().toISOString(), changelog: appDetails.releaseNotes || "No changelog provided", isCurrentVersion: true }; // Set history array to just the current version versionInfo.history = [currentVersion]; versionInfo.currentVersion = currentVersion; // Set platform capabilities - currently same as Android due to API limitations versionInfo.platformCapabilities = { fullHistoryAvailable: false, description: "Only latest version available - API limitation (versionHistory function not available)" }; console.error(`iOS version info created from app details: ${JSON.stringify(currentVersion)}`); } catch (error) { console.error(`Error getting iOS app details: ${error.message}`); // Set empty history and null current version versionInfo.history = []; versionInfo.currentVersion = null; // Update platform capabilities versionInfo.platformCapabilities = { fullHistoryAvailable: false, description: `Could not retrieve version information: ${error.message}` }; } } // Add metadata about the response const metadata = { retrievalDate: new Date().toISOString(), totalVersions: versionInfo.history.length, limitations: platform === "android" ? ["Only latest version available", "Historical data not accessible via Google Play Store API"] : [] }; return { content: [{ type: "text", text: JSON.stringify({ ...versionInfo, metadata }, null, 2) }] }; } catch (error) { return { content: [{ type: "text", text: JSON.stringify({ error: error.message, appId, platform }, null, 2) }], isError: true }; } }
• server.js:1384-1387 (schema)

  Input schema validation using Zod for the get_version_history tool parameters: appId (required), platform (ios/android), optional country and lang.
  appId: z.string().describe("The unique identifier for the app (Android package name, iOS numeric ID or bundle ID)."), platform: z.enum(["ios", "android"]).describe("The platform of the app. Note: Due to current API limitations, **only the latest version details are reliably returned for both platforms.**"), country: z.string().length(2).optional().default("us").describe("Two-letter country code for store localization. Default 'us'."), lang: z.string().optional().default("en").describe("Language code for the results (e.g., changelog text). Default 'en'.")
• server.js:1381-1509 (registration)

  Registration of the get_version_history tool using McpServer.tool() method, including inline schema and handler.
  server.tool( "get_version_history", { appId: z.string().describe("The unique identifier for the app (Android package name, iOS numeric ID or bundle ID)."), platform: z.enum(["ios", "android"]).describe("The platform of the app. Note: Due to current API limitations, **only the latest version details are reliably returned for both platforms.**"), country: z.string().length(2).optional().default("us").describe("Two-letter country code for store localization. Default 'us'."), lang: z.string().optional().default("en").describe("Language code for the results (e.g., changelog text). Default 'en'.") }, async ({ appId, platform, country, lang }) => { try { let versionInfo = { appId, platform, platformCapabilities: { fullHistoryAvailable: platform === "ios", description: platform === "ios" ? "Full version history available" : "Only latest version available due to Google Play Store limitations" }, currentVersion: null, history: [] }; if (platform === "android") { // Get app details from Google Play Store const appDetails = await memoizedGplay.app({ appId, country, lang }); // For Android, we can only get the current version versionInfo.currentVersion = { versionNumber: appDetails.version, releaseDate: new Date(appDetails.updated).toISOString(), changelog: appDetails.recentChanges || "No changelog provided", isCurrentVersion: true }; // Add current version to history array as well versionInfo.history = [versionInfo.currentVersion]; } else { // For iOS, first handle numeric vs bundle ID const isNumericId = /^\d+$/.test(appId); let numericId = appId; try { // Get app details from Apple App Store const lookupParams = isNumericId ? { id: appId, country, lang } : { appId: appId, country, lang }; console.error(`Getting app details for iOS app: ${JSON.stringify(lookupParams)}`); const appDetails = await memoizedAppStore.app(lookupParams); if (!appDetails) { throw new Error("No app details returned"); } // Create version info from the current version data const currentVersion = { versionNumber: appDetails.version || "Unknown version", releaseDate: appDetails.updated ? new Date(appDetails.updated).toISOString() : new Date().toISOString(), changelog: appDetails.releaseNotes || "No changelog provided", isCurrentVersion: true }; // Set history array to just the current version versionInfo.history = [currentVersion]; versionInfo.currentVersion = currentVersion; // Set platform capabilities - currently same as Android due to API limitations versionInfo.platformCapabilities = { fullHistoryAvailable: false, description: "Only latest version available - API limitation (versionHistory function not available)" }; console.error(`iOS version info created from app details: ${JSON.stringify(currentVersion)}`); } catch (error) { console.error(`Error getting iOS app details: ${error.message}`); // Set empty history and null current version versionInfo.history = []; versionInfo.currentVersion = null; // Update platform capabilities versionInfo.platformCapabilities = { fullHistoryAvailable: false, description: `Could not retrieve version information: ${error.message}` }; } } // Add metadata about the response const metadata = { retrievalDate: new Date().toISOString(), totalVersions: versionInfo.history.length, limitations: platform === "android" ? ["Only latest version available", "Historical data not accessible via Google Play Store API"] : [] }; return { content: [{ type: "text", text: JSON.stringify({ ...versionInfo, metadata }, null, 2) }] }; } catch (error) { return { content: [{ type: "text", text: JSON.stringify({ error: error.message, appId, platform }, null, 2) }], isError: true }; } } );