mcp-server-excel-sql@0.7.6
VERIFIED· not startedPublisher claims: "Let Claude query Excel files using SQL - no SQL knowledge required" Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Coverage
Not started: dependency install failed; the server itself was not observed.- Tested
- the dependency install step · every file read, file written and host contacted by what ran
- Not tested
- server startup · the tool list · tool behavior
What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.
Before you give it your token
- It will ask for
MCP_EXCEL_API_KEYor--require-auth- Where it talks to
- no vendor host named in the code
- What the honeypot saw
- no credential files read · no network
- What we could not test
- server startup · the tool list · tool behavior
Connect it with a scoped credential, under the guard. It asks for MCP_EXCEL_API_KEY and talks to its vendor. Give the credential to the guard, not the server: the value never enters the server's environment and only travels to the host you bind. What the tools do with a real credential was not observed.
Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.
Is [email protected] safe to install?
KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-09 and scored it 86/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 0 s · 2 scenarios · 0 deviationsStatic findings
b'\x09\x08\x04\x00\x00\x06\x02\x00': 'xls_biff2',Fix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.**Key Insight:** 318 paid invoices totaling MYR 13.1M. Wire Transfer is the most common payment method.Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.b'\x09\x08\x10\x00\x00\x06\x05\x00': 'xls_biff5',Fix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.b'\xd0\xcf\x11\xe0\xa1\xb1\x1a\xe1': 'ole2',Fix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.b'\x09\x08\x05\x00\x00\x06\x03\x00': 'xls_biff3',Fix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.Cost to the agent
Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.
Known vulnerabilities
No advisories in OSV for mcp-server-excel-sql@0.7.6 as of 5d ago. This is the package itself, not its dependencies.