Tuper Sheets formulas
REMOTE · MCP-SHEETS.TUPER.APP
Build Google Sheets FILTER, RANK and UNIQUE formulas and clean text. No sign-in.
Available components
Last scanned (5 hours ago)
Scores higher than 53% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Productivity and Notes
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security74
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability55
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 862 tokens (~172/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage81
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 44% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 0
- Stability: unverified → 0.03 ▲ functional
- 2 Nov 26 66
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://mcp-sheets.tuper.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp-sheets.tuper.app | CN=YR1,O=Let's Encrypt,C=US | 2 Nov 2026 | 31 Jan 2027 | RSA 2048 | SHA256-RSA | 6f0c2cd84db7a94e8f8cb7453900255783f |
| SANs: mcp-sheets.tuper.app | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp-sheets.tuper.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| tuper.app. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp-sheets.tuper.app/mcp | Verified | 200 | |
| http (plaintext) | http://mcp-sheets.tuper.app/mcp | HTTPS enforced | 301 | https://mcp-sheets.tuper.app/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
clean_text Clean pasted text (spaces, breaks, quotes) ~87
Run ReplaceKit cleanups on text (up to 50,000 characters), in the order given: double-spaces, space-before-punct, trailing-spaces, empty-paragraphs, line-breaks, nbsp, curly-quotes, straight-quotes. Returns the cleaned text and how many replacements each made.
| Name | Type | Req | Description |
|---|---|---|---|
| cleanups | array | yes | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
docs_match_case_replacement Replace keeping the case of each match ~72
Given matched texts and a replacement, return the replacement in the case shape of each match (ALL CAPS, Title Case, First letter, lower). The rule ReplaceKit uses for "Keep the case of each match" in Google Docs.
| Name | Type | Req | Description |
|---|---|---|---|
| matches | array | yes | – |
| replacement | string | yes | – |
No output schema declared.
No examples provided.
sheets_filter_formula Google Sheets FILTER formula ~212
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), optionally sorted and with a "no match" message. Returns the formula and a note.
| Name | Type | Req | Description |
|---|---|---|---|
| case_sensitive | boolean | – | – |
| cells_are_text | boolean | – | Numbers/dates are stored as text: wrap in VALUE / DATEVALUE |
| conditions | array | yes | – |
| join | string | – | – |
| no_match_message | string | – | If set, wrap in IFERROR and show this text when no row matches |
| order | string | – | Sort the result by its first column |
| range | string | yes | Rows to show, first and last column: A2:D, A2:D500, A:D or Data!A2:D |
| separator | string | – | Argument separator: "," (US/UK locale) or ";" (many European locales) |
| skip_blanks | boolean | – | – |
No output schema declared.
No examples provided.
sheets_rank_formula Google Sheets RANK formula ~205
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 within a group column. mode "column" fills the whole column from one cell; mode "row" is a per-row formula to drag down.
| Name | Type | Req | Description |
|---|---|---|---|
| direction | string | – | desc: largest value is rank 1 |
| group | string | – | Optional column letter; ranks restart in each group |
| mode | string | – | – |
| range | string | yes | One column with its first row, header left out: B2:B, B2:B200 or Data!B2:B |
| separator | string | – | Argument separator: "," (US/UK locale) or ";" (many European locales) |
| ties | string | – | – |
No output schema declared.
No examples provided.
sheets_unique_formula Google Sheets unique values formula ~129
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.
| Name | Type | Req | Description |
|---|---|---|---|
| ignore_case | boolean | – | – |
| mode | string | – | – |
| order | string | – | – |
| range | string | yes | A2:A, A2:A500, A:A or Data!A2:C (several columns only for mode "list") |
| separator | string | – | Argument separator: "," (US/UK locale) or ";" (many European locales) |
| skip_blanks | boolean | – | – |
No output schema declared.
No examples provided.
How do I install the Tuper Sheets formulas MCP server?
Tuper Sheets formulas is a hosted endpoint at https://mcp-sheets.tuper.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp-sheets.tuper.app
claude mcp add --transport http app-tuper-sheets 'https://mcp-sheets.tuper.app/mcp'
What is the Tuper Sheets formulas MCP server?
Tuper Sheets formulas is an MCP server listed in the public MCP registry as app.tuper/sheets. Build Google Sheets FILTER, RANK and UNIQUE formulas and clean text. No sign-in. This page covers its hosted endpoint (https://mcp-sheets.tuper.app/mcp).
Is the Tuper Sheets formulas MCP server safe to use?
Tuper Sheets formulas scores 67 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Tuper Sheets formulas MCP server expose?
Tuper Sheets formulas exposes 5 tools: sheets_filter_formula, sheets_rank_formula, sheets_unique_formula, docs_match_case_replacement, clean_text. Their descriptions and schemas cost roughly 705 tokens of context every time the server is loaded.
Does the Tuper Sheets formulas MCP server require authentication?
No. We connected to Tuper Sheets formulas without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Tuper Sheets formulas MCP server still maintained?
Tuper Sheets formulas is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.