Data Analysis Prover MCP for AI. Stop accepting statistically flawed 'significant' results.
Works with every AI agent you already use
…and any MCP-compatible client








How this MCP server connects to your AI agent
Data Analysis Prover forces any AI-generated statistical claim through a senior statistician's scrutiny. It checks for five core failures: flawed sampling, mistaking correlation for causation, inappropriate data distributions, meaningless p-values without effect size, and misleading visualizations.
Don't accept 'significant findings' at face value.
What AI agents can do with Data Analysis Prover Automation
Validate data analysis
Submits an AI-generated analysis for a full, five-point methodological review by simulating senior statistical peer review.
Checks if the data sample size (N) and collection method are adequate or biased.
Distinguishes between mere correlation and actual cause-and-effect relationships in the data.
Ensures that statistical tests are run on data distributions appropriate for their shape.
Forces the agent to report the practical magnitude of a finding, not just its p-value.
Identifies misleading charts, like truncated Y-axes or inappropriate dual scales.
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What AI agents can do with Data Analysis Prover: 1 Tool Available
Use the validate_data_analysis tool to subject any AI-generated report or claim to a professional, five-point statistical audit.
Make your AI actually useful.
Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Data Analysis Prover on VinkiusValidate Data Analysis
Submits an AI-generated analysis for a full, five-point methodological review by simulating senior statistical peer review.
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Built on the Model Context Protocol (MCP) for Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This connection provides 1 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.
Every data presentation has hidden statistical traps., Solved with Vinkius AI Gateway
Today, most people review reports by skimming charts and reading bold claims. They see 'p < 0.05' and mentally check the box: 'Okay, this is significant.' They copy-paste the resulting summary into a presentation, assuming that because an AI agent found it, the finding must be true.
With this MCP, you stop guessing what's right. You provide the raw analysis, and the tool returns a detailed, technical audit. It doesn't just say 'Flawed'; it tells you *why*—did you use the wrong test for your data shape? Is the sample too small to matter? This gives you real control over your narrative.
Data Analysis Prover: What You Actually Get
You don't have to manually check for selection bias, test assumptions against normality, or remember the difference between a mean and a median. The MCP performs this entire complex review in one step.
What changes is that your conclusions move from 'This looks significant' to 'We proved this effect size with these controls.' It’s about changing your confidence level from hopeful guesswork to verifiable statistical fact.
What your AI can actually do with this
When you get an AI agent to crunch numbers, the results often look great—a clean chart, a low p-value, a confident statement. But statistically speaking, they could be garbage. This MCP doesn't just summarize data; it actively tests your assumptions against established statistical principles. It forces every claim to prove its methodological integrity across five axes: sample quality, causal evidence, underlying data distribution, practical significance (effect size), and chart honesty.
Instead of letting you walk away with a report full of technical jargon but zero actionable truth, this tool tells you exactly where the analysis broke down. Users connect through Vinkius, accessing this MCP alongside thousands of others to ensure that every piece of insight your agent delivers is methodologically sound.
019e654e-02e5-736c-85c4-0e4ef051bb2f Here's how it actually works
The bottom line is: you stop presenting findings that are technically wrong, even if they sound convincing.
Feed the MCP an AI agent's output: a statistical claim, chart, or interpretation of data.
The tool runs a deep methodological review, simulating a senior statistician's peer critique against five key criteria.
You get a structured report flagging all flaws—whether it’s 'Sample Blindness,' 'Correlation Confusion,' or a specific visualization deception.
Who is this actually for?
Any analyst who has to read, interpret, or present data derived from an AI agent needs this. If your job involves turning raw numbers into boardroom decisions, you'll use it. It stops bad assumptions from becoming company policy.
Uses the MCP to double-check that their own complex models are correctly interpreted and presented by an agent.
Feeds in survey results or campaign metrics generated by AI agents, ensuring causal claims aren't being made from observational data.
Verifies that the statistical methods used to interpret literature or preliminary findings meet rigorous academic standards.
What Changes When You Connect
Stops the P-value Fallacy: You no longer rely on a p < 0.05 result alone. This tool forces reporting of effect sizes (like Cohen's d) to prove findings are practically meaningful, not just mathematically significant.
Catches Misleading Charts: It audits visualizations for common deceits—truncated Y-axes, dual scales, and disproportionate timeframes—so your reports look honest, always.
Separates Correlation from Cause: When an agent makes a 'X causes Y' claim based on survey data, this MCP flags it immediately. You get the clear language of 'associated with,' protecting your conclusions.
Verifies Sample Integrity: It checks for sample bias and power analysis gaps (the 'N' problem). This ensures you know if your findings are representative or just a small, skewed group talking.
Demands Distribution Awareness: Instead of using the mean on skewed data, this MCP forces consideration of medians and appropriate non-parametric tests. Your math gets smarter.
See it in action
The Marketing Campaign Review
A marketing team runs a campaign and an AI agent reports: 'Email frequency strongly correlates with purchases (p<0.05).' The manager submits this to the MCP. The result flags 'Correlation Confusion,' forcing the team to adjust their claim from causal language ('causes') to observational language ('associated with'), saving them from overpromising.
The Academic Paper Draft
A researcher uses an AI agent on preliminary survey data and gets a chart showing dramatic growth, but the Y-axis starts at $42 instead of zero. The MCP immediately flags 'Visualization Deception' due to the truncated axis, forcing the researcher to redraw the graph correctly.
The Internal Operations Report
An operations analyst submits a report claiming that simply surveying 100 employees ('N=100') proves a new process is better. The MCP flags 'Sample Blindness,' noting the lack of power analysis and suggesting the results are not statistically representative.
The Finance Model Check
An agent reports an average salary increase of $50K, but the data is highly right-skewed. The MCP flags 'Distribution Ignorance,' pointing out that the median should be used instead of the mean to accurately describe typical employee pay.
The honest tradeoffs
Assuming Causality from Correlation
The AI agent writes, 'Higher ad spend causes higher sales.' This is common when using observational data and the user doesn't know to check for confounders.
Run the analysis through the MCP. It will flag 'Causality FAILS,' forcing you to rephrase your claim as 'ad spend is associated with higher sales' until a proper experimental design can be used.
Ignoring Small Sample Sizes
A team reports results from a survey of 30 users, claiming it represents the entire customer base. This leads to overconfidence in flawed findings.
Use the MCP to check for 'Sample Blindness.' It will explicitly warn you about the lack of power analysis and assess if 30 respondents are enough to detect meaningful effects.
Misleading Charts
A presentation uses a line graph where the vertical axis starts at an arbitrary number, making a tiny difference look massive.
Feed the chart and its context into the MCP. It instantly spots 'Visualization Deception' due to the non-zero starting point, ensuring your audience sees the true magnitude of change.
When It Fits, When It Doesn't
Use this MCP if your data conclusions are presented as definitive statements ('X caused Y,' or 'This proves Z') and you suspect that underlying methodology might be flawed. If you need to know if a pattern exists, use the basic descriptive statistics tools available in any agent. But if you need to know why it exists—if the finding is robust enough for a major decision—you must run it through this MCP first. Don't rely on 'statistically significant' alone; check the effect size and sample validity using this tool.
Questions you might have
Does Data Analysis Prover check for causality? +
Yes, it actively checks causal claims. If the data is only observational (not experimental), it forces you to use language like 'associated with' instead of suggesting that one thing causes another.
What if my p-value is small but the effect size is tiny? Does Data Analysis Prover catch that? +
Absolutely. The MCP requires reporting an effect size (like Cohen’s d). If the effect size is trivial, it flags the finding as 'not practically significant,' even if the p-value was low.
Can I use Data Analysis Prover for survey data? +
Yes. It specifically reviews sample selection methods and checks for potential biases that might make your survey results unrepresentative of the wider population.
What is 'Sample Blindness' when using Data Analysis Prover? +
It refers to presenting findings without enough statistical power. The MCP identifies if the sample size (N) is too small or if the selection method was biased, making your results meaningless.
Does Data Analysis Prover fix my charts for me? +
No, it doesn't draw the chart; it audits it. It identifies mathematical flaws in existing visualizations, like truncated axes or dual scales, so you know exactly what needs correcting.
Why is p<0.05 not enough? +
p-value measures probability, not magnitude. Cohen's d: 0.2=small, 0.5=medium, 0.8=large. A p<0.001 with d=0.05 is trivial. Report effect size + 95% CI + practical significance.
When can I say 'causes' vs 'associated with'? +
Only RCTs establish causation. Observational studies show association. Control confounders, test reverse causality, check dose-response. Even then: 'associated with' unless experimental design.
Why is the mean misleading on skewed data? +
Income example: mean $65K, median $45K. The mean is pulled by outliers. Right-skewed data: median represents 'typical' better. Test normality with Shapiro-Wilk before choosing parametric tests.
Powerful workflows you can unlock today
How to Fact-Check Data Content Using MCP
Every claim source-verified, every statistic methodology-audited, every bias exposed , publish data-driven content that withstands scrutiny
MCP Recipe for Board-Ready Marketing Reports
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MCP Recipe to Find Top Revenue Channels
Attribution models stress-tested with first principles, statistical methodology audited for false confidence , make budget decisions on truth, not dashboards
MCP Servers for Reliable A/B Test Analysis
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