QAmcp

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Directory / Estimate My Paycheck

Estimate My Paycheck

Q: Is Estimate My Paycheck MCP server safe?

QAmcp's test on 29 Oct 2026: No hidden instructions were found in its tool descriptions. Its error messages showed no secrets or internal details. All 3 of its tools are labeled read-only. Overall it scored 95/100 on 29 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 estimatemypaycheck.com · https://estimatemypaycheck.com/api/mcp

US take-home pay after federal, FICA and state taxes, all 50 states and DC.

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

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95 /100

PASS · WITH NOTES

11 of 11 checks · 29 Oct 2026

Is Estimate My Paycheck MCP server safe?

No hidden instructions were found in its tool descriptions.
Its error messages showed no secrets or internal details.
All 3 of its tools are labeled read-only.
Overall it scored 95/100 on 29 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

3 tools, in the server's own words.

calculate_paycheckread-only

Compute a US paycheck for 2026: gross, each tax and pre-tax deduction, and take-home pay per paycheck and per year, for a salary or an hourly rate (overtime ov…

compare_statesread-only

Take-home pay for the same salary in the 50 states and DC in 2026, sorted from the highest.

calculate_bonus_taxread-only

What a bonus check pays after the flat 22% federal supplemental withholding, FICA and state tax, and how much of the federal withholding comes back (or is stil…

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
✓
ConnectsConnected in 259 ms
pass
✓
Lists its toolsFound 3 tools
pass
✓
Every tool is describedAll 3 tools and their inputs are described
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No hidden instructionsNo hidden instructions found in tool descriptions
pass
✓
Tools work with good inputs
All good
- ✓calculate_paycheck: Answered with an error, probably because of our sample input: { "error": "invalid_input", "message": "Unknown state \"test\": use a two-letter code (TX) or a name (new-york)." } {"error":"invalid_input…
- ✓compare_states: Worked (77 ms)
- ✓calculate_bonus_tax: Answered with an error, probably because of our sample input: { "error": "invalid_input", "message": "Unknown state \"test\": use a two-letter code (TX) or a name (new-york)." } {"error":"invalid_input…
pass
✓
Bad inputs give a clean error
All good
- ✓calculate_paycheck: Refused missing required input "state" with a clear error
- ✓calculate_paycheck: Refused wrong type for "state" with a clear error
- ✓compare_states: Refused missing required input "salary" with a clear error
- ✓compare_states: Refused wrong type for "salary" with a clear error
- ✓calculate_bonus_tax: Refused missing required input "state" with a clear error
- ✓calculate_bonus_tax: Refused wrong type for "state" with a clear error
pass
✓
Fast enough
All good
- ✓Connecting took 259 ms
- ✓Listing tools took 23 ms
- ✓Average tool answer: 64 ms
- ✓compare_states: Slowest tool: compare_states (77 ms)
pass
✓
No secrets leakedChecked 8 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://estimatemypaycheck.com/api/mcp

Show this score on GitHub

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

Score over time

29 Oct 202695

One test so far. New tests will show here.

Reviews

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

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