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Directory / Tuper Sheets formulas

Tuper Sheets formulas

Q: Is Tuper Sheets formulas 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 83/100 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 keepsorted.tuper.app · https://mcp-sheets.tuper.app/mcp

Build Google Sheets FILTER, RANK and UNIQUE formulas and clean text. No sign-in.

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

Visit website

83 /100

PASS · WITH NOTES

11 of 11 checks · 2 Nov 2026

Is Tuper Sheets formulas 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 83/100 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.

sheets_filter_formularead-only

Build a FILTER formula that shows the rows of a range matching 1-3 conditions (equals, contains, starts/ends with, one of, blank, number and date comparisons),…

sheets_rank_formularead-only

Build a formula that ranks one column, with a choice of tie handling (min: 1,2,2,4; dense: 1,2,2,3; avg: 1,2.5,2.5,4; unique: 1,2,3,4) and optional ranking wit…

sheets_unique_formularead-only

Build a formula for unique values: a UNIQUE list, COUNTUNIQUE, a value/count table, only the repeated values, or only the values that appear once.

docs_match_case_replacementread-only

Given matched texts and a replacement, return the replacement in the case shape of each match (ALL CAPS, Title Case, First letter, lower).

clean_textread-only

Run ReplaceKit cleanups on text (up to 50,000 characters), in the order given: double-spaces, space-before-punct, trailing-spaces, empty-paragraphs, line-break…

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
5 warnings
- !sheets_filter_formula: Inputs with no description: conditions, join, skip_blanks, case_sensitive
- !sheets_rank_formula: Inputs with no description: ties, mode
- !sheets_unique_formula: Inputs with no description: mode, order, skip_blanks, ignore_case
- !docs_match_case_replacement: Inputs with no description: matches, replacement
- !clean_text: Inputs with no description: text, cleanups
note
!
Bad inputs give a clean error
2 warnings
- !docs_match_case_replacement: Accepted wrong type for "matches" without complaining
- !clean_text: Accepted wrong type for "text" without complaining
- and 8 more
note
✓
ConnectsConnected in 1.0 s
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
- ✓sheets_filter_formula: Answered with an error, probably because of our sample input: Error: Rows to show: use a shape like A2:D, A2:D500, A:D or Data!A2:D (first and last column).
- ✓sheets_rank_formula: Answered with an error, probably because of our sample input: Error: Values to rank: use one column with its first row, like B2:B, B2:B200 or Data!B2:B (leave the header out).
- ✓sheets_unique_formula: Answered with an error, probably because of our sample input: Error: Range: use a shape like A2:A, A2:A500, A:A or Data!A2:C (first and last column).
- ✓docs_match_case_replacement: Worked (143 ms)
- ✓clean_text: Worked (143 ms)
pass
✓
Fast enough
All good
- ✓Connecting took 1.0 s
- ✓Listing tools took 147 ms
- ✓Average tool answer: 144 ms
- ✓sheets_unique_formula: Slowest tool: sheets_unique_formula (147 ms)
pass
✓
No secrets leakedChecked 11 error messages: no secrets or internal details
pass
✓
Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guide
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://mcp-sheets.tuper.app/mcp

Show this score on GitHub

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Score over time

2 Nov 202683

One test so far. New tests will show here.

Reviews

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

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