Agent A/B Test Calculator Connector for AI agents.
3 live capabilities
Validate agent performance with rigorous statistical testing
Waiting for input…
Why people use Agent A/B Test Calculator
Eliminate agent testing guesswork with Agent A/B Test Calculator
With this MCP, that manual grind disappears. You feed the raw numbers to your agent, and it handles the heavy lifting of calculating p-values and confidence intervals. You get a definitive answer on whether your change actually moved the needle.
What Vinkius changes
You stop guessing if your agent improvements are real and start proving them with math.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,400+ Connectors
- Real-world use case 01
Prompt Optimization Validation
An engineer changes a system prompt to be more concise.
- Real-world use case 02
Workflow A/B Testing
A product manager tests two different capability-calling sequences.
- Real-world use case 03
Risk-Free Deployment Decisions
A team wants to switch to a new model version.
Complete set · 3capabilities
The complete Agent A/B Test Calculator capability set.
These are the exact actions your AI can choose when you ask it to work with Agent A/B Test Calculator.
01—03
3 capabilities in this set.
Part of 3 available through Agent A/B Test Calculator.
- 01 Capability
Analyze variant performance
Calculates p-values and confidence intervals to see if agent variants differ significantly. It includes corrections for testing multiple versions at once.
- 02 Capability
Calculate bayesian probability
Uses Beta distributions to find the probability that one agent version outperforms another. It gives you a direct likelihood of success.
- 03 Capability
Estimate test requirements
Determines the necessary sample size and expected duration for an experiment. It helps you plan how long to run a test before you start.
Set up in minutes
One URL. Then ask Agent A/B Test Calculator to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Agent A/B Test Calculator from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_rLQOAZtFk4qc4ty1S7S56y14mXSD5bAfWh5mornv/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it Agent A/B Test Calculator, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable Agent A/B Test Calculator for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_rLQOAZtFk4qc4ty1S7S56y14mXSD5bAfWh5mornv/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the Agent A/B Test Calculator URL.
- Step 03
Save and start
Save the connection and enable Agent A/B Test Calculator in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"agent-ab-test-calculator": {
"url": "https://edge.vinkius.com/vk_preview_rLQOAZtFk4qc4ty1S7S56y14mXSD5bAfWh5mornv/mcp"
}
}
} - Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using Agent A/B Test Calculator
Open Agent mode in chat and ask: "Using Agent A/B Test Calculator, help me...". 3 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"agent-ab-test-calculator": {
"url": "https://edge.vinkius.com/vk_preview_rLQOAZtFk4qc4ty1S7S56y14mXSD5bAfWh5mornv/mcp"
}
}
} - Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using Agent A/B Test Calculator
Ask Copilot: "Using Agent A/B Test Calculator, help me...". 3 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"agent-ab-test-calculator": {
"url": "https://edge.vinkius.com/vk_preview_rLQOAZtFk4qc4ty1S7S56y14mXSD5bAfWh5mornv/mcp"
}
}
} - Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using Agent A/B Test Calculator
Open Cascade and ask: "Using Agent A/B Test Calculator, help me...". 3 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"agent-ab-test-calculator": {
"url": "https://edge.vinkius.com/vk_preview_rLQOAZtFk4qc4ty1S7S56y14mXSD5bAfWh5mornv/mcp"
}
}
} - Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using Agent A/B Test Calculator
Ask Cline: "Using Agent A/B Test Calculator, help me...". 3 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add agent-ab-test-calculator --transport http "https://edge.vinkius.com/vk_preview_rLQOAZtFk4qc4ty1S7S56y14mXSD5bAfWh5mornv/mcp" - Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using Agent A/B Test Calculator
Ask Claude: "Using Agent A/B Test Calculator, show me...". 3 tools are ready
Where the request belongs
Work Agent A/B Test Calculator can move forward.
This is for the people responsible for the performance and reliability of autonomous systems who can't afford to roll out unproven changes.
AI Product Manager
Deciding which agent personality or toolset to ship based on hard conversion data.
LLM Engineer
Verifying that a prompt optimization actually improved task success rates.
Data Scientist
Running quick, reliable significance tests on agent interaction logs.
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
Browse ConnectorsAB Test Sample Size Calculator
Calculate required sample size, test duration, and peeking risk for A/B experiments.
A/B Test Significance Calculator
Calculate statistical significance, required sample sizes, and power for A/B tests.
Agent Quality Gate Calculator
A deterministic engine for calculating quality scores, approval decisions, and operational costs for AI agent outputs.
D&D Character Stat Roller
Statistical simulation engine for evaluating D&D attribute generation methods.
Agent Evaluation Metrics Calculator
A deterministic engine for measuring agentic performance through statistical accuracy, efficiency, and reliability metrics.
Feature Flag Rollout Calculator
Calculate deterministic user assignment, rollout projections, and statistical sample sizes for feature flags.
Bring your own AI
Change the model, client or framework. Keep Agent A/B Test Calculator connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
Zencoder -
Goose -
Void -
Augment Code -
Amp -
Qodo -
Tabnine -
Pieces -
Sourcegraph Cody -
JetBrains -
Warp -
Amazon Q -
Antigravity -
BoltAI -
Raycast -
Jan -
LM Studio -
AnythingLLM -
Open WebUI -
Msty -
Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about Agent A/B Test Calculator.
The practical details behind the request, access and result.
How can I use the Agent A/B Test Calculator to improve my agent's conversion rate?
You can use it to run controlled experiments on different agent prompts or workflows. By comparing the success rates of two versions, you can mathematically prove which one actually drives more conversions.
Can the Agent A/B Test Calculator help me plan my next experiment?
Yes. You can tell your agent how many daily interactions you have and what kind of improvement you want to detect, and it will tell you exactly how many samples you need and how many days the test will take.
Is the Agent A/B Test Calculator suitable for testing multiple agent versions at once?
Absolutely. It includes the necessary statistical corrections to ensure that when you test multiple variants simultaneously, you don't accidentally identify a false winner.
How does the Agent A/B Test Calculator handle uncertainty in small datasets?
It uses rigorous statistical methods like p-values and Bayesian probability to quantify uncertainty, helping you understand if a small sample size is enough to trust the results.
Can I use the Agent A/B Test Calculator with any AI client?
Yes, as long as your client is MCP-compatible, such as Claude, Cursor, or Windsurf, you can use these statistical capabilities directly in your workflow.
How do I know if my agent's performance improvement is real?
You can use the analyze_variant_performance capability. It calculates the p-value to determine if the observed difference in conversion rates is statistically significant or likely due to chance.
Can I plan how long an experiment should run?
Yes, the estimate_test_requirements capability calculates the required sample size and the estimated number of days needed to complete a test based on your daily traffic and desired sensitivity.
What is the difference between the frequentist and Bayesian approaches provided?
The frequentist approach (via analyze_variant_performance) focuses on p-values and significance thresholds, while the Bayesian approach (via calculate_bayesian_probability) provides the direct probability that one variant is better than another.
One connection away
Give your agent a direct line to Agent A/B Test Calculator.
Connect Agent A/B Test Calculator once. Keep it beside 6,400+ managed Connectors when the next task needs more.
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