QAmcp

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Directory / AppTierList

AppTierList

Q: Is AppTierList MCP server safe?

QAmcp's test on 30 Oct 2026: No hidden instructions were found in its tool descriptions. Its error messages showed no secrets or internal details. All 11 of its tools are labeled read-only. Overall it scored 69/100 on 30 Oct 2026. A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

by apptierlist.com · https://apptierlist.com/mcp

Ranked iPhone app lists by use case (S to F) from public App Store data. Read-only, no key.

11 tools✓ all read-only✓ no account neededPricing: not listed

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69 /100

FAIL

Partial: 10 of 12 checks · 30 Oct 2026

Is AppTierList MCP server safe?

No hidden instructions were found in its tool descriptions.
Its error messages showed no secrets or internal details.
All 11 of its tools are labeled read-only.
Overall it scored 69/100 on 30 Oct 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What it can do

11 tools, in the server's own words.

list_categoriesread-only

Every ranked category (product type): slug, title, section, parent, how many apps are tiered, its #1 app, ranking_status (ranked; under_review: fewer than 6 ap…

get_categoryread-only

The tier list for one category: members in order with tier, score, the score components, per-store search ranks, membership status (active), confidence (normal…

get_appread-only

One app by slug or App Store id: App Store facts, generated summary, every category membership with tier/score/status/confidence and review_status (checked, or…

search_appsread-only

Find categories by name or definition and apps by name, word by word: 'best free ai companion', 'apps like calm' (the categories Calm is ranked in), 'chat gpt'.

explain_rankingread-only

Why an app sits where it does: score components per category, per-store search ranks, every judge verdict (with reason, whether it is current for the app's pre…

find_alternativesread-only

Apps that do the same job as the given app, in three groups: most_similar (S to C tier; apps that also sit in more of this app's other categories first, then t…

compare_appsread-only

Side-by-side tier, position, score and components for two or more apps in one category (or in every category they share when list is omitted).

recent_changesread-only

Append-only history: memberships added/removed, tier changes, categories created/activated/archived, apps discovered/missing.

healthread-only

Is the data being maintained: per-job last success and next due time, provider cool-downs, invariant check status, counts of pending judgments, stale apps, and…

searchread-only

Search categories and apps; returns results with an id to pass to fetch (list: for a category's ranking, app: for an app), a title and a URL.

fetchread-only

One document by the id search returned: list: is the category's ranking (compact members), app: the app's full record.

Test results

Safe mode: only tools labeled read-only were run. How the test works

✕
Lists its tools
1 failed
- ✕Asking for the tool list failed: Error POSTing to endpoint: {"type":"https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-1xxx-errors/error-1015/","title":"Er…
- and 1 more
fail
!
Ready for the newest MCP version
1 warning
- !Uses an older MCP version (2025-06-18). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
note
!
Every tool is described
2 warnings
- !list_categories: Inputs with no description: status
- !compare_apps: Inputs with no description: keys
note
!
Follows MCP best practices (not scored yet)
1 tip (not scored)
- !Very common tool names: search, fetch. Next to other servers' tools the AI may mix them up; a short prefix helps (like "github_search" instead of "search").
note
!
Resources and prompts work
1 warning ()
- –Could not list resources: the server limited our requests (HTTP 429)
- !Listing resource templates failed: Error POSTing to endpoint: {"type":"https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-1xxx-errors/erro…
note
✓
ConnectsConnected in 694 ms
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No hidden instructionsNo hidden instructions found in tool descriptions
pass
✓
Fast enough
All good
- ✓Connecting took 694 ms
- ✓Listing tools took 234 ms
pass
✓
No secrets leakedChecked 29 error messages: no secrets or internal details
pass
–
Tools work with good inputs
Not tested
- –list_categories: The server limited our requests (HTTP 429), so it was not tested (not counted against the server)
- –get_category: The server limited our requests (HTTP 429), so it was not tested (not counted against the server)
- –get_app: The server limited our requests (HTTP 429), so it was not tested (not counted against the server)
- –search_apps: The server limited our requests (HTTP 429), so it was not tested (not counted against the server)
- –explain_ranking: The server limited our requests (HTTP 429), so it was not tested (not counted against the server)
- –find_alternatives: The server limited our requests (HTTP 429), so it was not tested (not counted against the server)
- –compare_apps: The server limited our requests (HTTP 429), so it was not tested (not counted against the server)
- –recent_changes: The server limited our requests (HTTP 429), so it was not tested (not counted against the server)
- and 3 more
not tested
–
Bad inputs give a clean error
Not tested
- –list_categories: The server limited our requests, so bad inputs were not tested
- –get_category: The server limited our requests, so bad inputs were not tested
- –get_app: The server limited our requests, so bad inputs were not tested
- –search_apps: The server limited our requests, so bad inputs were not tested
- –explain_ranking: The server limited our requests, so bad inputs were not tested
- –find_alternatives: The server limited our requests, so bad inputs were not tested
- –compare_apps: The server limited our requests, so bad inputs were not tested
- –recent_changes: The server limited our requests, so bad inputs were not tested
- and 2 more
not tested
–
Tools work togetherNo safe tool returned data to start a chain from, so chains were not tested (not counted either way)
not tested

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://apptierlist.com/mcp

Show this score on GitHub

Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.

[![QAmcp score](https://qamcp.dev/s/com-apptierlist-apptierlist.svg)](https://qamcp.dev/s/com-apptierlist-apptierlist.html)

Score over time

30 Oct 202669

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use AppTierList, signed in with GitHub, one per person. Reviews never change the score.

Is this your server? Get an alert the moment it breaks.

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