Creatinine Clearance MCP for AI. Determine Drug Safety and Renal Status Fast
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Creatinine Clearance Calculator determines a patient’s kidney filtration efficiency using the Cockcroft-Gault equation. It calculates serum creatinine clearance, stages renal function, and identifies necessary medication dose adjustments for antibiotics and anticoagulants.
This tool helps clinicians quickly assess drug safety based on current kidney health.
What your AI can do
Calculate creatinine clearance
Calculates the creatinine clearance using the Cockcroft-Gault equation based on provided patient data.
Evaluate renal function stage
Evaluates and assigns a clinical stage to the patient's current renal function status.
Retrieve drug adjustments
Retrieves necessary medication dose adjustments for specific drugs based on calculated clearance.
The tool computes creatinine clearance using the Cockcroft-Gault formula based on patient metrics.
It classifies kidney function into defined stages, giving context beyond a single numerical value.
The MCP cross-references the patient’s clearance rate to suggest specific adjustments for medications like anticoagulants.
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Creatinine Clearance Calculator: 3 Tools
These three tools work together to provide a complete assessment of kidney function, allowing you to calculate clearance, stage the condition, and verify safe medication dosing.
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 Creatinine Clearance Calculator on VinkiusCalculate Creatinine Clearance
Calculates the creatinine clearance using the Cockcroft-Gault equation based on provided patient data.
Evaluate Renal Function Stage
Evaluates and assigns a clinical stage to the patient's current renal function...
Retrieve Drug Adjustments
Retrieves necessary medication dose adjustments for specific drugs based on...
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Claude AI
Open Claude Settings
Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
Add Custom Connector
Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL:
https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp
Replace [YOUR_TOKEN_HERE] with your token
from cloud.vinkius.com. For OAuth-protected servers, expand
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Works with 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 3 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.
The Old Way of Checking Kidney Function
Right now, assessing a patient's renal status is a manual relay race. You might pull up the lab report for serum creatinine, then manually plug those numbers into a separate calculator to get an estimated GFR. Next, you open the drug formulary and cross-reference that number with the medication sheet, hoping nothing breaks. It's slow, and it’s easy to miss one key step or use outdated guidelines.
With this MCP, all three steps happen automatically. You input the patient's vital data once. The system instantly calculates clearance, assigns a formal stage, and cross-checks against drug databases—all in one clean output. What you get is an immediate safety report that minimizes guesswork.
Getting Drug Dosing Adjustments with Creatinine Clearance Calculator
Before, determining if a medication dose needed adjustment meant physically comparing the patient's clearance number against specific drug guidelines for antibiotics and anticoagulants. This process was highly prone to human error and required jumping between multiple digital records.
Now, when you run this MCP, it uses `retrieve_drug_adjustments` to do that comparison instantly. It doesn't just say 'check the dose'; it provides specific instructions like 'Reduce dose or increase interval,' giving you definitive clinical direction.
What your AI can actually do with this
Assessing how well kidneys are filtering waste is critical for patient safety, especially when giving medications that require specific dosing. This MCP handles the full process: first, it calculates your creatinine clearance using standard inputs like age, weight, and serum creatinine levels. Then, it uses those numbers to classify the overall renal function into a defined stage.
The most important step is cross-referencing both results with known drug dosages. It flags specific medications—like certain antibiotics or blood thinners—and tells you exactly how much to reduce or change in the dose based on your clearance rate. When connected through Vinkius, this MCP becomes a vital part of your clinical workflow, providing layered validation before any medication is ordered.
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Here's how it actually works
The bottom line is that it gives you a single view of kidney function—from raw data to clinical action—in one place.
Input the necessary patient data, including age, sex, weight, and serum creatinine levels.
The MCP runs these inputs through multiple checks: calculating clearance, assigning a functional stage, and cross-referencing drug guidelines.
You receive an immediate report detailing the calculated clearance rate, the assigned renal stage, and any required medication dose adjustments.
Who is this actually for?
This MCP is essential for clinicians who routinely manage patients with compromised kidney function. If your practice requires careful drug monitoring, this tool saves time and reduces the risk of dosing errors.
Uses it to establish baseline renal function and guide long-term drug protocols for complex cases.
Checks the MCP before dispensing high-risk medications, confirming safe dosing adjustments based on calculated clearance.
Uses it during initial patient intake or acute care to determine if a preliminary medication order is safe given current kidney status.
What Changes When You Connect
Safety First: It doesn't just give a number. By running through retrieve_drug_adjustments, you get immediate, actionable alerts about specific medications that need dosage changes.
Layered Diagnosis: Instead of relying on one metric, the system first uses evaluate_renal_function_stage to provide context, then uses calculate_creatinine_clearance for a quantitative reading. This gives a more complete picture than either tool alone.
Time Savings: You eliminate manual cross-referencing of drug formularies and renal guidelines in separate software programs. Everything is connected in one workflow.
Consistency: The MCP ensures that calculations adhere to established Cockcroft-Gault standards, minimizing variation caused by different institutional protocols.
Completeness: When you use this tool, the output includes three crucial pieces of information—the clearance rate, the stage, and the drug changes—making it a single point of truth.
See it in action
Checking New Antibiotic Orders
A physician enters an order for Vancomycin. Your agent runs this MCP, which immediately identifies that the patient has low renal function and recommends reducing the dose or increasing the time between doses before you even review the drug monograph.
Triage During Admission
A nurse enters a new patient's weight and serum creatinine. The MCP first runs calculate_creatinine_clearance to get the number, then uses evaluate_renal_function_stage to assign the status (e.g., Severe Impairment), guiding immediate care plans.
Optimizing Anticoagulant Dosing
A patient needs a blood thinner. Instead of just looking at their eGFR, you run this MCP. It uses retrieve_drug_adjustments to check the specific anticoagulant against the calculated clearance, ensuring the dosing is safe for their kidney function.
Reviewing Chronic Care Plans
A nephrology team reviews a patient's chart. They use this MCP to validate that all current medications are still dosed correctly given the patient’s stable, yet impaired, renal status over time.
The honest tradeoffs
Relying on eGFR alone
The clinician only checks an eGFR number from a lab report and proceeds with standard dosing. This ignores the potential for variation in that calculation or fails to flag specific drug interactions.
Always use this MCP. Start by calculating clearance via calculate_creatinine_clearance, then check both the stage using evaluate_renal_function_stage and run retrieve_drug_adjustments before approving any medication order.
Checking drugs in isolation
A pharmacist checks a drug's general dosing sheet, which gives a broad range. They miss the patient-specific adjustment needed due to low clearance.
Use this MCP as your final gatekeeper. It synthesizes all data points—the clearance rate and the functional stage—to provide precise adjustments via retrieve_drug_adjustments.
Forgetting context
The care team only sees a raw creatinine value (e.g., 1.8 mg/dL) without knowing if that represents acute or chronic failure, leading to incorrect assumptions about drug safety.
Always run the full workflow: calculate clearance first, then use evaluate_renal_function_stage to define the clinical context before making any decisions.
When It Fits, When It Doesn't
Use this MCP if your primary concern is medication dosing safety in patients with kidney impairment. It's necessary when you need a layered assessment that combines quantitative data (clearance rate) with qualitative context (renal stage) and clinical action (drug adjustments). Don't use it if you are simply checking general lab values; those tools suffice for basic tracking. Conversely, don't rely on this tool if your patient has kidney function issues but is not due for an immediate medication order—in that case, the initial calculation alone may be enough. Always remember: calculate_creatinine_clearance gives the number, evaluate_renal_function_stage gives the context, and retrieve_drug_adjustments tells you what to do about it.
Questions you might have
How does the Creatinine Clearance Calculator use weight and age? +
The MCP uses age, sex, and body weight to run the Cockcroft-Gault equation. These inputs are critical because they adjust the calculation for individual differences that affect kidney filtration efficiency.
Does `evaluate_renal_function_stage` replace my eGFR result? +
No, it doesn't replace it; it adds context. While your lab may give an eGFR, this MCP uses the calculated clearance to place that number into a standardized clinical stage (like Severe Impairment), which is useful for decision-making.
Can I find out drug adjustments using `retrieve_drug_adjustments`? +
Yes, this tool checks various guidelines and tells you if specific medications require a dose reduction or an extended interval based on the patient's current clearance rate.
What inputs does calculate_creatinine_clearance need? +
To run the calculation, it requires four key pieces of information: the patient’s age, sex, weight, and their measured serum creatinine level.
What input units does `calculate_creatinine_clearance` require for accurate results? +
The tool requires standard medical measurements. You must provide weight in kilograms (kg) and serum creatinine levels in mg/dL to get the clearance result accurately measured in ml/min.
If I use `calculate_creatinine_clearance` with impossible patient data, how is the error handled? +
The MCP runs built-in validation checks. If inputs are outside a medically reasonable range, it won't calculate a number; instead, it returns an explicit error code and prompts you to verify your input parameters.
Is the list provided by `retrieve_drug_adjustments` exhaustive for every possible drug? +
No. This tool provides critical adjustments for high-risk classes, like antibiotics and anticoagulants. Always cross-reference its output with your facility’s full medication protocol.
How should I connect the output of `calculate_creatinine_clearance` to `evaluate_renal_function_stage`? +
Simply pass the calculated clearance value directly into the second tool's input. This allows your agent to use the resulting number immediately for accurate classification of the patient’s renal health stage.
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