Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add fetcher-sh/fetcher-skills --skill app-storegit clone --depth 1 https://github.com/fetcher-sh/fetcher-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/fetcher-sh/fetcher-skills/app-store)<a href="https://agentmods.dev/skills/fetcher-sh/fetcher-skills/app-store"><img src="https://agentmods.dev/badge/skills/fetcher-sh/fetcher-skills/app-store/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/fetcher-sh/fetcher-skills/app-store"><img src="https://agentmods.dev/badge/skills/fetcher-sh/fetcher-skills/app-store.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00125 | $0.01498 |
| Opus 5 | $0.00063 | $0.00749 |
| Sonnet 5 | $0.00025 | $0.00300 |
| Haiku 4.5 | $0.00013 | $0.00150 |
Grade A, and why
app-store scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -H "Authorization: Bearer $FETCHER_API_KEY" \ How it starts
The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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"
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 167 lines · 125 tokens per session scan A 76d08808d229
app-store is a skill published in the GitHub repository fetcher-sh/fetcher-skills (1 stars, last pushed 5d ago), licensed MIT. It adds 125 tokens to every session and 1,498 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
Other skills, from other repositories
aso-playbook
Beginner-friendly App Store Optimization guide covering keyword research, screenshot design, rating management, and A/B testing for iOS and Android. By @WeiYipei — practical ASO for indie developers and small teams.
gingiris-aso-growth
A broad guide to growing mobile apps through App Store Optimization, launch planning, creator-made content, and marketing on platforms such as TikTok, Instagram, and YouTube Shorts.
gr-aso
A skill for app-store optimization, or improving how an app is found and presented in the App Store and Google Play, plus launch planning for a new app. It covers listing text, screenshots and video, ratings, creator content, advertising, and localization.
aso
Route or run comprehensive App Store Optimization work for iOS and Android. Use for full listing audits, multi-area ASO requests, or when the user does not name a more specific ASO task. Covers keyword research, metadata, visuals, reviews, competitors, localization, testing, technical health, compliance, conversion…
aso-asc
Apple App Store Connect API integration. Fetch iOS app metadata, reviews, ratings, and version info directly from App Store Connect. Requires API key. Triggers on: "app store connect", "asc".
aso-apptweak
Live ASO data via AppTweak REST API. Keyword suggestions with volume/difficulty, app rankings, competitor analysis, review sentiment, and historical data. Requires AppTweak API key. Triggers on: "apptweak", "live data", "keyword volume".