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Directory / topic-scorer

topic-scorer

Q: Is topic-scorer MCP server safe?

QAmcp's test on 2 Nov 2026: None of the hidden-instruction wordings we know were found in its tool descriptions. Its error messages showed no secrets or internal details. All 5 of its tools are labeled read-only. Overall it scored 88/100 on 2 Nov 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 pixelcove.co · https://topic-scorer.pixelcove.co/mcp

Score pages against 11,485 public taxonomy categories by embedding similarity. Free.

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

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88 /100

PASS · WITH NOTES

11 of 11 checks · 2 Nov 2026

Is topic-scorer MCP server safe?

None of the hidden-instruction wordings we know were found in its tool descriptions.
Its error messages showed no secrets or internal details.
All 5 of its tools are labeled read-only.
Overall it scored 88/100 on 2 Nov 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

5 tools, in the server's own words.

topic_scorer_taxonomiesread-only

Lists the six taxonomies with their label and category count.

topic_scorer_findread-only

Finds categories whose path contains the query (case-insensitive substring), optionally within one taxonomy.

topic_scorer_scoreread-only

Scores text against every category in all six taxonomies (one embedding, cosine similarity) and returns the top `per` rows per taxonomy.

topic_scorer_gateread-only

Pass/fail check: does the text rank within the top `min_rank` categories of its target taxonomy?

topic_scorer_phrasesread-only

Returns the ranked phrase bank for one category: 1 to 4 word phrases a page squarely about that category would contain, ordered by similarity to the category.

Test results

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

!
Ready for the newest MCP version
1 warning
- !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
note
!
Every tool is described
1 warning
- !topic_scorer_find: Inputs with no description: limit
note
!
Follows MCP best practices (not scored yet)
1 tip (not scored)
- !3 tools answer with structured data but don't declare its shape (outputSchema): topic_scorer_taxonomies, topic_scorer_find, topic_scorer_score. If those answers change shape, nothing can catch it; with a schema, every answer is checked.
note
✓
ConnectsConnected in 529 ms
pass
✓
Lists its toolsFound 5 tools
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
pass
✓
Tools work with good inputs
All good
- ✓topic_scorer_taxonomies: Worked (388 ms)
- ✓topic_scorer_find: Worked (263 ms)
- ✓topic_scorer_score: Worked (1.4 s)
- ✓topic_scorer_gate: Answered with an error, probably because of our sample input: {"error":{"code":"invalid_input","message":"'test' is ambiguous in google_ads_topics (6 hits). Use an id:\n 1174 Arts & Entertainment > Fun…
- ✓topic_scorer_phrases: Answered with an error, probably because of our sample input: {"error":{"code":"invalid_input","message":"'test' is ambiguous in google_ads_topics (6 hits). Use an id:\n 1174 Arts & Entertainment > Fun…
pass
✓
Bad inputs give a clean error
All good
- ✓topic_scorer_find: Refused missing required input "query" with a clear error
- ✓topic_scorer_find: Refused wrong type for "query" with a clear error
- ✓topic_scorer_score: Refused missing required input "text" with a clear error
- ✓topic_scorer_score: Refused wrong type for "text" with a clear error
- ✓topic_scorer_gate: Refused missing required input "text" with a clear error
- ✓topic_scorer_gate: Refused wrong type for "text" with a clear error
- ✓topic_scorer_phrases: Refused missing required input "taxonomy" with a clear error
- ✓topic_scorer_phrases: Refused wrong type for "taxonomy" with a clear error
pass
✓
Fast enough
All good
- ✓Connecting took 529 ms
- ✓Listing tools took 111 ms
- ✓Average tool answer: 495 ms
- ✓topic_scorer_score: Slowest tool: topic_scorer_score (1.4 s)
pass
✓
No secrets leakedChecked 10 error messages: no secrets or internal details
pass
–
Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)
not tested

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://topic-scorer.pixelcove.co/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/co-pixelcove-topic-scorer.svg)](https://qamcp.dev/s/co-pixelcove-topic-scorer.html)

Score over time

2 Nov 202688

One test so far. New tests will show here.

Reviews

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

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