PeptideCalc MCP Server

The official Model Context Protocol (MCP) server for PeptideCalculatorOnline.com.

This server empowers AI assistants (like Claude, Cursor, and ChatGPT) with precise, clinical-grade mathematical logic for calculating peptide reconstitution matrices, avoiding the dangerous "hallucination" of dosages by LLMs.

🚀 Key Features

• Absolute Math Accuracy: Replaces LLM guess-work with the deterministic algebraic mapping used on our official calculator ($V_{draw} = \frac{D}{C}$).

• U-100 Syringe Mapping: Automatically converts complex dosages into exact "Unit" pulls for standard U-100 insulin syringes.

• Standard Protocols: Instant access to widely accepted laboratory research protocols for compounds like Semaglutide, BPC-157, TB-500, Tirzepatide, etc.

• Plunger Parallax Guidelines: Educates researchers on volumetric resolution and how to avoid hyper-condensed solutions.

Related MCP server: Perplexity API MCP Server

🔗 Official Links

• Website: https://peptidecalculatoronline.com

• Interactive Calculators: Semaglutide, BPC-157, TB-500

• Custom Protocol Planner: 4-Week Injection Schedule Generator

🛠 Available Tools

1. calculate_reconstitution_dose: Input peptide (mg), bacteriostatic water (ml), and desired dose (mg). Returns the exact concentration (mg/ml) and U-100 syringe units.

2. get_peptide_protocol: Input a standard analog name (e.g., semaglutide, bpc-157) to receive standard starting titrations and matrices.

3. get_syringe_mechanics_guide: Learn about standard operating procedures to reduce dosage errors.

💻 Installation

For Claude Desktop

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "peptidecalc": {
      "command": "npx",
      "args": [
        "-y",
        "peptidecalc-mcp"
      ]
    }
  }
}

For Cursor

1. Open Cursor Settings.

2. Navigate to Features -> MCP.

3. Click Add New MCP Server.

4. Type: stdio

5. Command: npx -y peptidecalc-mcp

🏗 Development

# Install dependencies
npm install

# Build the project
npm run build

# Run locally for testing (MCP Inspector)
npx @modelcontextprotocol/inspector node build/index.js

⚠️ Disclaimer

Research Use Only. The mathematical outputs provided by this MCP server are strictly for educational and laboratory research purposes. Not for human consumption. Always consult a licensed medical professional.