MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Other

AppSkyline App Rankings

Track your apps' keyword rankings, reviews and store listings on App Store, Google Play and more.

Checks passed
13 / 22

1 failed · 8 not measured

Median response
1718 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
16

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 1718 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name appskyline-mcp.

  • Pass
    Lists tools

    tools/list returned 16 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 1718 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 1718 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    53 of 53 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-09-27T17:06:26.810109Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using AppSkyline App Rankings

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http appskyline-app-rankings https://mcp.appskyline.com/mcp

Capabilities

Tools 16

add_keyword

Use this when someone asks to start tracking a keyword for their app in a given language and country. Returns the new keyword; adding the same term twice creates two rows. Keywords without a country are skipped by the weekly rank check. Not for a one-off rank lookup.

Discovered
delete_keyword

Use this when someone asks to stop tracking one of their keywords. Returns deleted, or not-found for an unknown id or one outside the account. Weekly rank checks stop and past snapshots stay, leaving a gap if it is tracked again later. Not for pausing tracking temporarily.

Discovered
get_app

Use this when someone asks about one of their AppSkyline apps, such as which stores it is on or which languages it supports. Returns the app's name, default and supported locales, App Store, Mac App Store, Google Play and Microsoft Store ids, and creation and edit times. Not for the live public store page or ratings.

Discovered
get_app_engagement_summary

Use this when someone asks how many downloads, installs, uninstalls or crashes their app had over a period. Returns store-reported totals, the latest 30 daily rows and top countries for one app and store; metric names differ by store. Not for keyword rankings.

Discovered
get_keyword_history

Use this when someone asks how their app's ranking for a keyword has changed over time in one store and country. Returns the app's rank on each date AppSkyline stored a search snapshot, newest first, up to 365 rows; tracked keywords are re-checked weekly. Not for today's live rank.

Discovered
get_keyword_overview

Use this when someone asks how popular a keyword is or which keyword ideas are worth targeting. Returns monthly Google web-search volume (a demand proxy, not app-store search counts), difficulty, CPC and competition for up to 50 terms in one country. Terms missing from the 30-day cache trigger a billable lookup. Not for rankings.

Discovered
get_keyword_rank

Use this when someone asks where their app ranks for a keyword right now in one store and country. Returns the app's live position, or not-ranked, after scanning the top 50 results by default and up to 200, and renders a rank card. Not for how a rank changed over time.

Discovered
get_store_listing

Use this when someone asks about a competitor's or any app's public store page, such as its rating, number of ratings, price, version or last update. Returns the live listing for one store id, with description and release notes cut to 600 characters. Not for your own app's synced text per language.

Discovered
get_store_metadata

Use this when someone asks about their own app's listing text per language, such as the title, subtitle, keywords or release notes, or whether the latest version is still in review or approved. Returns the metadata AppSkyline last synced for each locale, with the version, its review state and the keyword field's length against Apple's 100-character limit; longer texts are cut to 600 characters. Not for a live competitor listing.

Discovered
list_apps

Use this when someone asks which apps they track in AppSkyline, or an app's id is needed. Returns each app's id, name, default locale and its App Store, Mac App Store, Google Play and Microsoft Store ids, up to 100 apps. Not for finding other apps in a store.

Discovered
list_google_play_reviews

Use this when someone asks what users say about their Android app on Google Play, or about recent ratings and complaints. Returns reviews with stars, text cut to 300 characters, app version, device, language and whether the developer replied, up to 100 per page. Google Play only returns reviews from the last 7 days. Not for App Store reviews.

Discovered
list_keywords

Use this when someone asks which keywords they track for an app, or before adding or deleting one. Returns each tracked keyword's id, search term, language, country and bid, up to 500 per call. Not for current rankings or search volume.

Discovered
open_appskyline

Use this when someone wants to open AppSkyline and browse their workspace interactively. Apps, connected stores and tracked keywords. Starts with up to 100 items. Not for changing data.

Discovered
search_store_results

Use this when someone asks which apps show up for a search term, or who their competitors are for a keyword, on the App Store, Mac App Store, Google Play or Microsoft Store. Returns the live results in rank order with store id, title, rating and developer (10 by default, up to 200). Not for one app's own position.

Discovered
show_app_overview

Use this when someone wants a quick overview of one of the apps they track in AppSkyline. Returns an overview card with the app's connected stores, locales and up to 50 tracked keywords. Not for keyword rankings.

Discovered
suggest_store_metadata

Use this when someone asks which keywords to put in their app's title, subtitle, keyword field or short description, or how to improve their store listing's ASO. Without appId it covers every app in its main market, so one call answers 'for each app'. Compares each listing (synced metadata, or the live public listing in that country) with the app's tracked keywords, their latest stored rank and cached Google demand, and returns drafts that already fit each store's limits, the coverage they reach, the top opportunities and issues. Pass appId, store and a proposed title, subtitle, keywords or shortDescription to check your own wording. Read-only; never changes a store listing.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected1718 ms16