Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Gas blending calculator for scuba divers: nitrox, trimix, heliair, heliox, MOD, best mix and fills.
These three are never merged into one score: opinions, measurements and popularity are different things.
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Works in Claude on the web, desktop and mobile:
https://indamix.divingtechnics.com/mcpRun this in your terminal
claude mcp add --transport http indamix https://indamix.divingtechnics.com/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"indamix": {
"url": "https://indamix.divingtechnics.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"indamix": {
"type": "http",
"url": "https://indamix.divingtechnics.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://indamix.divingtechnics.com/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
blendUse whenever the user asks how to blend, mix, fill or prepare a breathing gas, even if they don't mention In Da Mix. Step-by-step fill plan for blending nitrox, trimix, heliair or heliox into a scuba tank, from what is in it now to the mix and pressure wanted: how much helium and
gas_usageFor 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 short). Same inputs as blend, plus the banks. Use for "how much helium will this fill use", "is my O2 bank enough for th
fills_from_bankHow 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 high enough without a booster). Every tank is assumed to start the same (start_pressure / mix). Use for "how many tanks
top_upTop 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. For a ready-made supply gas; to add pure oxygen or helium use what_if or blend. Use for "I have 50 bar of EAN32 left, w
best_mixUse 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 In Da Mix. The best nitrox or trimix for a planned depth within the diver's limits, as an open-circuit bottom gas or as C
modUse 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 In Da Mix; never work a MOD out by hand. Maximum operating depth of a breathing gas: the MOD by the ppO2 limit (as on a c
what_ifWhat 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 resulting mix, its MOD, EAD, END and gas density. Use for "what if" additions: "I have 50 bar of air, what do I get if I ad
decantDecanting 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 in turn (ideal gas). plan refills: one refill or a series (e.g. a CCR O2 cylinder from 75 to 150 bar after every dive):
list_methodsThe calculation methods (equations of state) In Da Mix offers, with their ids for the method input. The current default is in the `default` field. Use when the user asks about calculation models: ideal versus real gas, compressibility, Z-factors, Peng-Robinson, MultiDeco. Use for
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry lists no source repo, so we cannot match the publisher (indamix.divingtechnics.com) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
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Read 9 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.26.41) reached the registry 5 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
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No README found in the repo