AB Test Sample Size Calculator Connector for AI agents.
3 live capabilities
Plan statistically valid A/B experiments with precise user requirements and timelines.
Waiting for input…
Why people use AB Test Sample Size Calculator
AB Test Sample Size Calculator for Accurate Conversion Rate Optimization
This Connector takes the guesswork out of the math. Instead of hunting through complex statistical formulas or trying to remember what power means in a specific context, you just tell your agent what you're trying to achieve. It handles the heavy lifting of calculating how many users you need to see a real difference based on your baseline data.
What Vinkius changes
You get a statistically sound roadmap for your A/B tests without doing any manual math.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,100+ Connectors
- Real-world use case 01
Validating low-traffic changes
A growth lead wants to know if a 2% lift in signups is detectable with only 500 daily visitors.
- Real-world use case 02
Setting realistic launch dates
A product manager needs to tell stakeholders that a new checkout flow will take 14 days to validate.
- Real-world use case 03
Avoiding premature conclusions
An analyst sees a winning result on day 3 and uses the capability to check if it's just a random fluke or a real trend.
Complete set · 3capabilities
The complete AB Test Sample Size Calculator capability set.
These are the exact actions your AI can choose when you ask it to work with AB Test Sample Size Calculator.
01—03
3 capabilities in this set.
Part of 3 available through AB Test Sample Size Calculator.
- 01 Capability
Estimate test duration
This capability projects how many days your experiment must run given your current daily traffic. It helps you plan your roadmap without guessing when results will land.
- 02 Capability
Assess peeking risk
This capability evaluates the danger of stopping a test prematurely to avoid false positives. It helps you decide whether to keep running a test or call a winner.
- 03 Capability
Calculate required sample size
This capability determines the number of users needed per variant based on your baseline conversion rate and desired effect. It ensures your test is properly powered to yield reliable results.
Set up in minutes
One URL. Then ask AB Test Sample Size Calculator to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use AB Test Sample Size 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_r2w7FicRhYLb2yLUrh65lss0cEO4Bcdo5mApGeZ1/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 AB Test Sample Size Calculator, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable AB Test Sample Size Calculator for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_r2w7FicRhYLb2yLUrh65lss0cEO4Bcdo5mApGeZ1/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 AB Test Sample Size Calculator URL.
- Step 03
Save and start
Save the connection and enable AB Test Sample Size Calculator in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"ab-test-sample-size-calculator": {
"url": "https://edge.vinkius.com/vk_preview_r2w7FicRhYLb2yLUrh65lss0cEO4Bcdo5mApGeZ1/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 AB Test Sample Size Calculator
Open Agent mode in chat and ask: "Using AB Test Sample Size Calculator, help me...". 3 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"ab-test-sample-size-calculator": {
"url": "https://edge.vinkius.com/vk_preview_r2w7FicRhYLb2yLUrh65lss0cEO4Bcdo5mApGeZ1/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 AB Test Sample Size Calculator
Ask Copilot: "Using AB Test Sample Size Calculator, help me...". 3 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"ab-test-sample-size-calculator": {
"url": "https://edge.vinkius.com/vk_preview_r2w7FicRhYLb2yLUrh65lss0cEO4Bcdo5mApGeZ1/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 AB Test Sample Size Calculator
Open Cascade and ask: "Using AB Test Sample Size Calculator, help me...". 3 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"ab-test-sample-size-calculator": {
"url": "https://edge.vinkius.com/vk_preview_r2w7FicRhYLb2yLUrh65lss0cEO4Bcdo5mApGeZ1/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 AB Test Sample Size Calculator
Ask Cline: "Using AB Test Sample Size Calculator, help me...". 3 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add ab-test-sample-size-calculator --transport http "https://edge.vinkius.com/vk_preview_r2w7FicRhYLb2yLUrh65lss0cEO4Bcdo5mApGeZ1/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 AB Test Sample Size Calculator
Ask Claude: "Using AB Test Sample Size Calculator, show me...". 3 tools are ready
Where the request belongs
Work AB Test Sample Size Calculator can move forward.
This is for growth marketers, product managers, and data analysts who are tired of guessing if their experiment results actually mean anything. It solves the pain of underpowered tests and the risk of making decisions based on noise.
Growth Marketer
Uses this to ensure that every campaign lift is statistically significant before asking for more budget.
Product Manager
Uses this to provide stakeholders with realistic dates for when a new feature will be validated.
Data Analyst
Uses this to automate the frequent requests from the business team regarding sample size requirements.
CRO Specialist
Uses this to plan multi-variant tests that require high precision in low-traffic environments.
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
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Multivariate Test Analyzer
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Feature Flag Rollout Calculator
Calculate deterministic user assignment, rollout projections, and statistical sample sizes for feature flags.
Kameleoon
Manage A/B testing, personalization, and experimentation workflows via AI agents.
Bring your own AI
Change the model, client or framework. Keep AB Test Sample Size Calculator connected.
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Before you connect
Questions about AB Test Sample Size Calculator.
The practical details behind the request, access and result.
How does the AB Test Sample Size Calculator help with my experiments?
It helps you plan your experiments by calculating exactly how many users you need to see a statistically significant result. This prevents you from running underpowered tests that don't give you clear answers.
Can I use it to see how long a test will take?
Yes, you can get an estimated timeline for your test by providing your daily traffic and the required sample size. This makes it much easier to coordinate your product roadmap with your testing schedule.
What is peeking risk and why does it matter?
Peeking risk is the danger of looking at your results too early and seeing a winner that's actually just a random fluke. This capability helps you identify when it's safe to stop a test and when you need to keep running it.
How do I know if my sample size is big enough?
You can use the capability to calculate the required sample size based on your baseline conversion rate and the minimum change you want to detect. It ensures your test has enough power to be meaningful.
Does this capability replace my experimentation platform?
No, it's a planning capability. It helps you set the parameters for your tests before you launch them. You'll still need your usual platform to actually run the experiments and split the traffic.
Can my AI agent plan my whole testing schedule?
Yes, by using this Connector, your agent can help you determine the duration and user requirements for multiple tests, allowing you to build a more accurate and data-backed testing calendar.
How do I know if my sample size is sufficient?
You can use the calculate_required_sample_size capability. By providing your baseline conversion rate, MDE, confidence level, and statistical power, it will return exactly how many users you need per variant.
What is the risk of 'peeking' at my results?
Peeking refers to checking results and stopping a test before its planned duration. This significantly increases your False Positive rate. Use assess_peeking_risk to see if your current progress is safe or if you are at high risk of making an incorrect decision.
How can I estimate when my test will finish?
Once you have the total required users from the sample size capability, use estimate_test_duration along with your average daily traffic to calculate the estimated number of days needed for the experiment.
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Give your agent a direct line to AB Test Sample Size Calculator.
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