app-store

Q: How do I install app-store?

Run npx skills add https://github.com/fetcher-sh/fetcher-skills --skill app-store in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/app-store/ (personal) or .claude/skills/app-store/ (project).

by fetcher-shMobile

An Apple App Store API alternative on fetcher.sh — pay-per-call in USDC via x402, or prepaid credits with a Bearer key, no Apple Developer Program membership. Use when the user wants to search iOS apps by keyword in any country's storefront, fetch an app's or app bundle's full details, reviews sorted by recent/helpful, apps similar to a given app, search or fetch app bundles, or fetch a developer's app catalog. Also covers iOS app store optimization (ASO) research, competitor app monitoring, localized storefront comparison, and app discovery without Apple Developer Program access.

Installs: 3.7K
Last 24h: +57
Trending rank: #3083
Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/fetcher-sh/fetcher-skills --skill app-store

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads app-store automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Apple App Store API

App Store app and bundle search, details, reviews, similar-apps, and developer catalogs across any country storefront — one plain HTTP GET per call, paid as you go. No Apple Developer Program membership, no App Store Connect access, no scraping the storefront HTML.

Base URL: https://appstore.fetcher.sh

Authentication

Two ways to pay, same data — full mechanics in the fetcher skill:

# 1. Prepaid credits (recommended — get a key at https://fetcher.sh/topup
#    or via POST /api/credits/topup, see the fetcher skill)
export FETCHER_API_KEY="bby_live_xxxxxxxxxxxx"
curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  "https://appstore.fetcher.sh/api/apps?term=meditation"

# 2. x402 pay-per-call — omit the header; a GET with no payment returns 402
#    with machine-readable payment requirements (USDC on Base, Polygon,
#    Arbitrum, Monad, or Solana). @x402/fetch signs and retries automatically.

Every response is { "status": number, "message": string, "data": ... }; the HTTP status mirrors status.

Endpoints (9 — all GET, $0.003/call)

Endpoint	What it returns
`/api/apps`	Apps matching a keyword; page and country storefront filters
`/api/apps/{appId}`	An app's full details
`/api/apps/{appId}/reviews`	An app's reviews
`/api/apps/{appId}/similar`	Apps similar to a given app
`/api/bundles`	App bundles matching a keyword
`/api/bundles/{bundleId}`	A bundle's full details
`/api/bundles/{bundleId}/reviews`	A bundle's reviews
`/api/bundles/{bundleId}/similar`	Bundles similar to a given bundle
`/api/developers/{developerId}`	A developer's full app catalog

Required on /api/apps and /api/bundles: term. Optional everywhere: country (storefront, e.g. us, jp, de), lang, page. Reviews support sort (recent, helpful).

Scenarios

US storefront search:

curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  --data-urlencode "term=habit tracker" -G \
  --data-urlencode "country=us" \
  "https://appstore.fetcher.sh/api/apps"

Japanese storefront search:

curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  --data-urlencode "term=camera" -G \
  --data-urlencode "country=jp" \
  "https://appstore.fetcher.sh/api/apps"

An app's full details, then reviews sorted by helpfulness:

curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  --data-urlencode "country=us" -G \
  "https://appstore.fetcher.sh/api/apps/324684580"

curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  --data-urlencode "country=us" -G \
  --data-urlencode "sort=helpful" \
  "https://appstore.fetcher.sh/api/apps/324684580/reviews"

Apps similar to a given app:

curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  --data-urlencode "country=us" -G \
  "https://appstore.fetcher.sh/api/apps/324684580/similar"

Search and fetch app bundles:

curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  --data-urlencode "term=photo editing suite" -G \
  "https://appstore.fetcher.sh/api/bundles"

curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  --data-urlencode "country=us" -G \
  "https://appstore.fetcher.sh/api/bundles/1234567890"

A developer's full app catalog:

curl -H "Authorization: Bearer $FETCHER_API_KEY" \
  "https://appstore.fetcher.sh/api/developers/284882218"

MCP

{
  "mcpServers": {
    "app-store": {
      "url": "https://appstore.fetcher.sh/mcp",
      "headers": { "Authorization": "Bearer bby_live_..." }
    }
  }
}

Free: search_endpoints, describe_endpoint, check_balance. Paid: fetch_data (any endpoint above), topup_credits, plus the named shortcut appstore_apps. Drop the headers block to pay per call with x402 instead — see the fetcher skill for the full flow.

Errors

400 — missing/invalid parameter (message names it)
401 — unknown or rotated key
402 — payment required (x402 challenge) or topup_required (credits exhausted)
404 — not a priced path
No rate limits; no refunds on upstream failures (settlement precedes delivery)

Reference

Full agent setup: https://appstore.fetcher.sh/skill.md
OpenAPI 3.1 contract: https://appstore.fetcher.sh/openapi.json
Condensed catalog: https://appstore.fetcher.sh/llms.txt
Payment, credits, and MCP deep dive: fetcher skill
Site: https://appstore.fetcher.sh

FAQ

What does the app-store skill do?

How do I install app-store?

Run npx skills add https://github.com/fetcher-sh/fetcher-skills --skill app-store in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/app-store/ (personal) or .claude/skills/app-store/ (project).

Which AI agents can use app-store?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is app-store safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains app-store?

It is published by fetcher-sh in fetcher-sh/fetcher-skills. It has 3,718 recorded installs.

More from fetcher-sh/fetcher-skills

View all →

twitter-api

fetcher-sh/fetcher-skills

A Twitter API alternative and X API alternative on fetcher.sh — pay-per-call in USDC via x402, or prepaid credits with a Bearer key, no OAuth and no developer application. Use when the user wants to search tweets by keyword, hashtag, or advanced operators (from:, to:, since:, until:, minfaves:, filter:), scrape a Twitter/X profile by handle, pull a user's tweets, replies, followers, or followings, fetch a single tweet with its replies or retweeters, read a Twitter List's members or tweets, check trending topics by country, or search for X accounts by name. Also covers Twitter data pipelines, competitor monitoring, hashtag tracking, sentiment analysis input, or follower export without the official X API's pricing tiers or app-review process.

Backend & APIs8.1K installs

instagram-api

fetcher-sh/fetcher-skills

An Instagram API alternative on fetcher.sh — pay-per-call in USDC via x402, or prepaid credits with a Bearer key, no login and no session cookies. Use when the user wants to resolve an Instagram profile by @handle, search users by keyword, pull a profile's posts, reels, stories, tagged posts, followers, or followings, look up a single post by its shortcode, read a post's comments, fetch posts under a hashtag or reel-only hashtag feed, pull posts from a location, or pull posts using a specific audio/music track. Also covers Instagram follower export, hashtag and location monitoring, influencer discovery, competitor content tracking, and Instagram data pipelines without an official Graph API business verification or a headless browser.

Marketing & SEO6.8K installs

tiktok-api

fetcher-sh/fetcher-skills

A TikTok API alternative on fetcher.sh — pay-per-call in USDC via x402, or prepaid credits with a Bearer key, no login and no app review. Use when the user wants to search TikTok posts by keyword and sort by most-liked or most recent within a date range, look up a post by its share URL or ID, scrape a TikTok profile by @username, pull a user's posts, followers, or followings, fetch a hashtag's posts, pull posts using a specific sound/music track, get posts from a location, or read a post's comments and comment replies. Also covers TikTok trend tracking, hashtag monitoring, influencer discovery, competitor content analysis, and TikTok data pipelines without official TikTok API access or a scraping browser.

Marketing & SEO6.7K installs

google-search

fetcher-sh/fetcher-skills

A Google Search API alternative and SERP API alternative on fetcher.sh — pay-per-call in USDC via x402, or prepaid credits with a Bearer key, no API key application. Use when the user wants programmatic Google search results as clean JSON, including Google's own operators — site:, filetype:, intitle:, and quoted exact phrases — plus pagination, language (hl), and country/region scoping. Also covers rank tracking input, competitive research, and search-result monitoring without Google's own Custom Search API quota and billing.

Backend & APIs3.9K installs

fetcher

fetcher-sh/fetcher-skills

Shared payment and setup skill for fetcher.sh, a pay-per-call web-data API covering Twitter/X, TikTok, Instagram, YouTube, Reddit, Google Search, Google Maps, Google News, Google Play, the App Store, and Yelp. Use this skill whenever a task needs a fetcher.sh API key, a credit top-up, an x402 micropayment, MCP server configuration, or an explanation of the { status, message, data } response envelope and error codes — before or alongside any of the per-service skills (twitter-api, x-api, tiktok-api, instagram-api, youtube-api, reddit-api, google-search, google-maps, google-news, google-play, app-store, yelp). Also use it when the user asks how to pay with USDC, fund an agent wallet, set up credits, mint or rotate an API key, or connect an MCP client to fetcher.sh.

Marketing & SEO3.8K installs

youtube-api

fetcher-sh/fetcher-skills

A YouTube API alternative on fetcher.sh — pay-per-call in USDC via x402, or prepaid credits with a Bearer key, no OAuth and no daily quota. Use when the user wants to search YouTube videos with filters for upload date, duration, or sort order, search channels or playlists, look up a channel by ID, @handle, or custom URL path, list a channel's videos, shorts, or live streams, fetch a video's or short's details and comments, list a playlist's videos, pull posts under a hashtag, or check trending videos by region. Also covers YouTube data pipelines, channel monitoring, video analytics input, and trend tracking without the official YouTube Data API's daily quota limits.

Backend & APIs3.8K installs

Popular mobile skills

View category →

design-mobile-apps

designed-by-ai/skills

Design mobile app screens with Sleek, edit Sleek projects, and implement their designs in React Native or HTML.

Mobile1.1M installs

ios-design

uizze.sh

Design and review iOS UI/UX for iPhone apps in SwiftUI, UIKit, or React Native. Use for mobile app design, screen redesigns, navigation flows, typography, forms, keyboard and safe-area layout, and accessibility checks. Apply Apple Human Interface Guidelines and consult real product references through the optional Uizze connection.

Mobile416.5K installs

vercel-react-native-skills

vercel-labs/agent-skills

React Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native modules. Triggers on tasks involving React Native, Expo, mobile performance, or native platform APIs.

OfficialMobile256.7K installs

animate-expo

emilkowalski/skills

Build animations in React Native and Expo, making the decisions in the order that determines whether they feel right — should it animate, which thread it runs on, which properties, spring or timing, how the gesture hands off, how it degrades. Writes the implementation with Reanimated, Gesture Handler, Expo Router and expo-haptics. Use when animating anything in an Expo app, adding gestures, sheets, screen transitions, press feedback or haptics, or fixing motion that stutters on device. For web animation use animate.

Mobile140.1K installs

xcode-project-setup

firebase/agent-skills

Safely modifies Xcode projects (.pbxproj) to add Swift Packages and link files. Use this skill whenever an iOS project needs dependencies installed (e.g. Firebase, Alamofire).

OfficialMobile131.2K installs

firebase-remote-config-basics

firebase/agent-skills

Manages Firebase Remote Config templates, feature flags, loading strategies, and SDKs (Android, iOS). Use when downloading/deploying remoteconfig JSON templates, managing version history/feature flags, setting in-app defaults, fetchAndActivate(), real-time listeners, or SDK setup. Don't use for Firebase Hosting, Auth, Firestore, Data Connect, Crashlytics, or App Hosting.

OfficialMobile121.7K installs

app-store

Install

Install

Describe the task

Review the result

SKILL.md

Apple App Store API

Authentication

Endpoints (9 — all GET, $0.003/call)

Scenarios

MCP

Errors

Reference

FAQ

More from fetcher-sh/fetcher-skills

Popular mobile skills