Connect Coupon Savings 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 exact promotional math and pricing validation instantly.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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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.

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.
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.
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.
Complete set · 4 capabilities
The complete Coupon Savings capability set.
These are the exact actions your AI can choose when you ask it to work with Coupon Savings.
01-04
4 capabilities in this set.
Part of 4 available through Coupon Savings.
- 01
Calculate threshold price
Finds the required starting price to hit a specific savings target. It answers exactly what the original price needs to be to reach your goal.
- 02
Get unit cost comparison
Compares the cost per item when applying discounts to bulk purchases. It shows how much a discount changes the individual unit price.
- 03
Get savings summary
Calculates the total money saved and the final price of an item. It provides a clear breakdown of the discount impact.
- 04
Validate promo viability
Checks if a proposed discount percentage stays within your set business rules. It flags whether a promotion is valid based on your constraints.
One connector, every AI
Coupon Savings 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.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put Coupon Savings 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
1108ms average. Fast in production.
Coupon Savings is checked daily against the live service.
- Fastest day
- 942ms
- Slowest day
- 1381ms
- 14-day trend
- Improving-15%
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 Coupon Savings, so you can see the experience inside your AI.
It does not authenticate your account with Coupon Savings. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Coupon Savings Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_JHm0xb3OBLS5mdDjB6QdL77uPhhWiLcjTpaEKOYv/mcpClaude 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 — Coupon Savings capabilities are ready to use.
{
"mcpServers": {
"coupon-savings-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_JHm0xb3OBLS5mdDjB6QdL77uPhhWiLcjTpaEKOYv/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? How to give Claude access to Coupon Savings
Who it's for
Built for the work Coupon Savings owners hand off.
This MCP is for professionals managing retail pricing, promotions, and inventory math.
- 01
Retail Merchandisers
They hand off discount scenarios to the AI to check pricing viability.
- 02
E-commerce Managers
They use the capability to calculate bulk savings and promotional impact.
- 03
Pricing Analysts
They rely on the capability to run precise math for target price points.
FAQ
Questions Coupon Savings owners ask.
- 01
How do I use this MCP with Claude?
You connect to Vinkius once, and the Coupon Savings MCP becomes available as a capability within your Claude interface.
- 02
Can this MCP check if my discounts are too high?
Yes, the validate_promo_viability capability checks if a discount percentage is valid according to your business rules.
- 03
Does it handle bulk purchase math?
Yes, the get_unit_cost_comparison capability specifically calculates how discounts affect the cost per unit for multiple items.
- 04
Can I find the original price needed for a specific discount?
Yes, use the calculate_threshold_price capability to find the original price required to hit a target savings amount.
- 05
Is there a way to see the final price after a discount?
Yes, the get_savings_summary capability provides both the total savings and the final price.
- 06
How do I calculate my total savings for multiple items?
You can use the get_unit_cost_comparison capability, which calculates the total savings across all units based on the original price, discount percentage, and quantity.
- 07
Can I check if a discount is within my business limits?
Yes, the validate_promo_viability capability allows you to check if a discount percentage falls within a specific minimum and maximum range.
- 08
How much should an item cost to save a specific amount?
Use the calculate_threshold_price capability to find the required original price needed to reach your target savings amount given a specific discount percentage.
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Connect Coupon Savings to Claude, Cursor, ChatGPT & more
