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Directory / In Da Mix

In Da Mix

Q: Is In Da Mix 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 9 of its tools are labeled read-only. Overall it scored 70/100 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 indamix.divingtechnics.com · https://indamix.divingtechnics.com/mcp

Gas blending calculator for scuba divers: nitrox, trimix, heliair, heliox, MOD, best mix and fills.

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

Visit website

70 /100

FAIL

11 of 11 checks · 29 Oct 2026

Is In Da Mix MCP server safe?

No hidden instructions were found in its tool descriptions.
Its error messages showed no secrets or internal details.
All 9 of its tools are labeled read-only.
Overall it scored 70/100 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

9 tools, in the server's own words.

blendread-only

Use whenever the user asks how to blend, mix, fill or prepare a breathing gas, even if they don't mention In Da Mix.

gas_usageread-only

For one blend: the litres of each gas it takes from the banks, each bank's pressure afterwards, and whether a bank can still decant (or needs boosting, or runs…

fills_from_bankread-only

How many identical fills the source banks give before a bank can't supply the next one, and why it stops (bank down to the minimum pressure, or it can't decant…

top_upread-only

Top a tank up with a ready-made supply gas (air, EAN32, a trimix premix…): the pressure added, the mix you end up with, its MOD, and the gas density at a depth.

best_mixread-only

Use this FIRST when the user asks which breathing gas to use for a planned depth, or to select, recommend, optimise or compare one, even if they don't mention …

modread-only

Use whenever the user asks how deep a gas can go or checks an existing breathing gas (nitrox, trimix, CCR diluent) against a depth, even if they don't mention …

what_ifread-only

What mix you get when you add given pressures of oxygen, helium and/or air to what is in the tank (the app's What If): the pressure after each addition, the re…

decantread-only

Decanting one gas (oxygen, or helium) from source cylinders into a small cylinder without a compressor, as the app's Decant: a cascade, each cylinder equalised…

list_methodsread-only

The calculation methods (equations of state) In Da Mix offers, with their ids for the method input.

Test results

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

✕
Tools work with good inputs
1 failed
- ✕top_up: Crashed: server error (HTTP 500)
- and 8 more
fail
!
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
!
Follows MCP best practices (not scored yet)
1 tip (not scored)
- !The tool list is about 43 KB (roughly 11k tokens). AI apps send it with every message, so it takes that much of the AI's memory before any work starts.
note
✓
ConnectsConnected in 1.2 s
pass
✓
Lists its toolsFound 9 tools
pass
✓
Every tool is describedAll 9 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
✓
Bad inputs give a clean error
All good
- ✓blend: Refused missing required input "mix_type" with a clear error
- ✓blend: Refused wrong type for "mix_type" with a clear error
- ✓gas_usage: Refused missing required input "mix_type" with a clear error
- ✓gas_usage: Refused wrong type for "mix_type" with a clear error
- ✓fills_from_bank: Refused missing required input "mix_type" with a clear error
- ✓fills_from_bank: Refused wrong type for "mix_type" with a clear error
- ✓top_up: Refused missing required input "target_pressure" with a clear error
- ✓top_up: Refused wrong type for "target_pressure" with a clear error
- and 6 more
pass
✓
Fast enough
All good
- ✓Connecting took 1.2 s
- ✓Listing tools took 409 ms
- ✓Average tool answer: 170 ms
- ✓fills_from_bank: Slowest tool: fills_from_bank (319 ms)
pass
✓
No secrets leakedChecked 20 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://indamix.divingtechnics.com/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/com-divingtechnics-indamix-indamix.svg)](https://qamcp.dev/s/com-divingtechnics-indamix-indamix.html)

Score over time

29 Oct 202670

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use In Da Mix, signed in with GitHub, one per person. Reviews never change the score.

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