
Connect Prompt Economics Engine 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. Measure the actual cost and value of every prompt iteration.
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.
Curated set · 4 capabilities
We ship only the actions that matter.
01-04
4 capabilities in this set.
Part of 4 available through Prompt Economics Engine.
- 01
Estimate test effort
Predicts how many testing iterations you'll need to reach a stable prompt version.
- 02
Analyze versioning impact
Evaluates how much your prompt versioning complexity is hitting your budget.
- 03
Calculate optimization value
Quantifies the specific dollar value of a single successful prompt improvement.
- 04
Calculate prompt economics
Determines the total financial health of your entire prompt management strategy.
Real work
What teams actually run
Token Reduction ROI
Calculate if reducing token count is worth the engineering time spent on the task.
A/B Test Planning
Estimate the testing effort required before starting a new prompt optimization sprint.
Version Management
Analyze how much your versioning strategy is adding to your operational costs.
Performance Benchmarking
Determine the monetary worth of hitting a specific performance target.
One connector, every AI
Prompt Economics Engine 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 Prompt Economics Engine 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
811ms average. Fast in production.
Prompt Economics Engine is checked daily against the live service.
- Fastest day
- 685ms
- Slowest day
- 1242ms
- 14-day trend
- Slowing+39%
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 Prompt Economics Engine, so you can see the experience inside your AI.
It does not authenticate your account with Prompt Economics Engine. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Prompt Economics Engine Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_tbcluZW5b04XyZoByxVoJoVVgeDI5BjZ32EyE1EE/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 — Prompt Economics Engine capabilities are ready to use.
{
"mcpServers": {
"prompt-economics-engine-mcp": {
"url": "https://edge.vinkius.com/vk_preview_tbcluZW5b04XyZoByxVoJoVVgeDI5BjZ32EyE1EE/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 Prompt Economics Engine in Claude and other AIs
Who it's for
Built for the work Prompt Economics Engine owners hand off.
This MCP is built for teams managing large scale LLM deployments who need to justify prompt engineering spend.
- 01
LLM-Ops Engineers
They hand off testing data to the agent to predict future resource needs.
- 02
Prompt Engineers
They use the agent to check if a specific tweak is worth the iteration cost.
- 03
Product Managers
They use the agent to report on the financial impact of model optimizations.
FAQ
Questions Prompt Economics Engine owners ask.
- 01
What does this MCP actually calculate?
It calculates the financial impact of prompt engineering, including the cost of versioning, the cost of testing, and the monetary value of performance improvements.
- 02
Can I use this with Claude or Cursor?
Yes, it works with any MCP-compatible client like Claude, Cursor, or Windsurf.
- 03
How does it help with prompt testing?
It uses the estimate_test_effort capability to predict how many iterations you will need to reach a stable prompt based on your target improvement and success rate.
- 04
Does this help with token cost management?
Yes, you can use it to calculate exactly how much money you will save by reducing token usage for specific high-volume prompts.
- 05
Is there a way to see the total cost of my prompt library?
Yes, the calculate_prompt_economics capability determines the overall financial health of your prompt management strategy.
- 06
How does this capability calculate testing ROI?
The calculate_prompt_economics capability calculates ROI by dividing the total optimization value (gains from performance improvements) by the total management cost (versioning and testing expenses).
- 07
Can I predict how many tests I need for a new prompt?
Yes, you can use estimate_test_effort to predict the number of iterations required based on your target improvement, performance variance, and expected success rate.
- 08
What is included in the management cost?
Total management cost includes the overhead of maintaining historical prompt versions and the cumulative costs of running A/B tests and experiments.
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Connect Prompt Economics Engine to Claude, Cursor, ChatGPT & more
