How do I use this MCP with Claude or Cursor?

You connect once through the Vinkius interface. After connecting, your AI client will automatically see the stoichiometry capabilities as available functions.

Does the agent need to balance the equation itself?

The capability includes a validation utility to check the equation. It is best to provide a balanced equation to ensure the most accurate stoichiometric results.

Can this calculate percent yield?

Yes. The calculate_percent_yield capability compares your actual results to the theoretical limits to give you an efficiency percentage.

What happens if I don't provide enough mass data?

The validate_equation_and_masses capability will check for missing data and alert your agent if the calculation cannot be completed.

Do I need to host this myself?

No. Vinkius hosts and manages the MCP for you. You just connect your client and start working.

How do I specify reactant amounts?

Provide the reactant amounts as a JSON array of objects, where each object contains the formula and the mass in grams, such as [{ "formula": "H2", "amount": 4 }].

What happens if my equation is unbalanced?

The validate_equation_and_masses capability will detect if the equation is unbalanced and return an error reason.

Can I calculate the percent yield?

Yes, you can use the calculate_percent_yield capability by providing the equation, reactant amounts, the actual yield mass, and the target product formula.

An astronaut overseeing a futuristic data hub

Download PDF Markdown Version

Connect Stoichiometry Calculator to ChatGPT and Claude

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Get precise chemical reaction math from your AI agent.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 4 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through Stoichiometry Calculator.

01
Calculate percent yield
This capability compares your actual reaction results against theoretical limits to find the efficiency. It's how your agent determines the percent yield.
02
Calculate reaction composition
Use this to find the limiting reagent and the amount of excess reagent left after a reaction. It identifies exactly what runs out first.
03
Calculate theoretical yield
This capability calculates the maximum mass of a specific product that can be formed. It uses stoichiometric ratios to find the upper limit.
04
Validate equation and masses
This utility checks if your chemical equation is valid and if you have provided all the necessary mass data. It prevents math errors before they happen.

Real work

What teams actually run

Lab Prep

Calculate exactly how much of each reagent you need to reach a specific product mass.

Reaction Efficiency Audits

Compare your real-world lab results to the theoretical maximum to find your percent yield.

Reagent Management

Determine how much excess material will remain after a reaction is complete.

Equation Verification

Check if a proposed chemical equation is mathematically and chemically sound for stoichiometry.

One connector, every AI

Stoichiometry Calculator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Stoichiometry Calculator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

903ms average. Fast in production.

Stoichiometry Calculator is checked daily against the live service.

Daily averagePeak 1101ms

Oct 3Today

Fastest day: 726ms
Slowest day: 1101ms
14-day trend: Slowing+12%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 4 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Stoichiometry Calculator, so you can see the experience inside your AI.

It does not authenticate your account with Stoichiometry Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Stoichiometry Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_xWsuANB0VyqxoT7uCs4CZE1OJqGmT5chF3qcT0ow/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Stoichiometry Calculator capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "stoichiometry-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_xWsuANB0VyqxoT7uCs4CZE1OJqGmT5chF3qcT0ow/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Stoichiometry Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Stoichiometry Calculator owners hand off.

This MCP is built for anyone performing quantitative chemical analysis using AI agents.

01
Chemistry Students
They use the agent to verify their homework calculations and understand reaction ratios.
02
Lab Researchers
They hand off mass data to the agent to quickly calculate expected yields for experiments.
03
Chemical Engineers
They use the capability to model reaction efficiency and reagent requirements in process design.

FAQ

Questions Stoichiometry Calculator owners ask.

01
How do I use this MCP with Claude or Cursor?
You connect once through the Vinkius interface. After connecting, your AI client will automatically see the stoichiometry capabilities as available functions.
02
Does the agent need to balance the equation itself?
The capability includes a validation utility to check the equation. It is best to provide a balanced equation to ensure the most accurate stoichiometric results.
03
Can this calculate percent yield?
Yes. The calculate_percent_yield capability compares your actual results to the theoretical limits to give you an efficiency percentage.
04
What happens if I don't provide enough mass data?
The validate_equation_and_masses capability will check for missing data and alert your agent if the calculation cannot be completed.
05
Do I need to host this myself?
No. Vinkius hosts and manages the MCP for you. You just connect your client and start working.
06
How do I specify reactant amounts?
Provide the reactant amounts as a JSON array of objects, where each object contains the formula and the mass in grams, such as [{ "formula": "H2", "amount": 4 }].
07
What happens if my equation is unbalanced?
The validate_equation_and_masses capability will detect if the equation is unbalanced and return an error reason.
08
Can I calculate the percent yield?
Yes, you can use the calculate_percent_yield capability by providing the equation, reactant amounts, the actual yield mass, and the target product formula.

Explore

More in Education

Connect Stoichiometry Calculator to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Calculate percent yield

Calculate reaction composition

Calculate theoretical yield

Validate equation and masses

What teams actually run

Lab Prep

Reaction Efficiency Audits

Reagent Management

Equation Verification

Building your own app? The connector is yours to use.

Stoichiometry Calculator Connector

Claude Desktop

Chemistry Students

Lab Researchers

Chemical Engineers

How do I use this MCP with Claude or Cursor?

Does the agent need to balance the equation itself?

Can this calculate percent yield?

What happens if I don't provide enough mass data?

Do I need to host this myself?

How do I specify reactant amounts?

What happens if my equation is unbalanced?

Can I calculate the percent yield?

Nanoparticle Synthesis Yield Analyzer AI Connector

Limiting Reagent Yield Calculator AI Connector

Mass Balance Calculator AI Connector

Lavender Oil Yield Calculator AI Connector

Suggestions

Durian Value-Yield Calculator AI Connector

Mass Index Calculator AI Connector

Bond Yield Calculator AI Connector

Yield Calculator AI Connector