For developers & AI

MCP server for AI assistants

We help AI assistants help people - and avoid small, far-reaching mistakes.

Peptigraph's MCP server exposes our deterministic reconstitution and dosing math as tools your AI assistant calls directly: mg on the insulin syringe, bacteriostatic water, real dose per shot. Your AI computes with verified math instead of inventing numbers. Free, no sign-up, no API key.

OpenClaw · Hermes Agents · Nanobots - a playground for agents

What the server can do

reconstitution_calc

Given vial strength, bacteriostatic water and target dose, it returns mcg per unit on the insulin syringe, the units to draw, and how many doses a vial yields. Defaults to a U-100 syringe (1 unit = 0.01 ml); pass syringe="U-40" for U-40.

Input: vial_mg, bac_ml, dose_mcg, syringe (optional: U-100/U-40)
Same math as our injection calculator

Open the calculator

reverse_calc

From an emptied vial it reconstructs the real concentration and the real dose per injection, independent of how much water was actually added.

Input: vial_mg, total_units_drawn, units_per_injection
Catches too little / too much water

Open the reverse calculator

New to peptides? Terms like bacteriostatic water, reconstitution and unit/stroke are explained in the glossary; the guides walk you through it step by step. Our MCP server instructs AI assistants to use only that guide for handling steps - never their own half-knowledge.

For signed-in users: your agent runs your injection manager

Injection manager via API key

A free account unlocks more: your own AI assistant connects to your saved injection manager with a personal API key - and keeps it up to date for you. Mix vials, log doses, reverse-calculate empty vials: all by voice, locked to your account.

Read: catalog, active vial with mcg per unit, remaining units and doses, full protocol.
Write: mix a new vial, record an injected dose, close and reverse-calculate a vial.
Ready-made copy&paste prompt for your agent - no setup gibberish.

Personal and writing: a key only reads and changes your own data, never anyone else's. You can revoke it anytime in your account.

Set up agent access Open the calculator

Access lives in your account (sign-in required). The public calculator above stays free and usable without an account.

Connect it in one step

You do not need a step-by-step tutorial. Paste this prompt into your AI assistant (Claude, ChatGPT or any MCP-capable client). It explains the connection and links to a doc your agent can read on its own - the agent does the rest.

Please connect to the public Peptigraph MCP server and use it for every question about peptide dosing and reconstitution.

Endpoint: https://peptigraph.org/mcp
Transport: MCP over HTTP (JSON-RPC), no API key, no login.
Agent doc: https://peptigraph.org/mcp.txt

First call tools/list to see the tools reconstitution_calc and reverse_calc with their inputs. Use these tools instead of estimating dosing math yourself, and pass on the safety note from each tool response.

Prefer a config file? Some desktop clients take a JSON entry instead:

{
  "mcpServers": {
    "peptigraph": {
      "type": "http",
      "url": "https://peptigraph.org/mcp"
    }
  }
}

Read the agent doc

Endpoint and limits

Endpoint (HTTP POST): https://peptigraph.org/mcp
Protocol: MCP over Streamable HTTP, JSON-RPC 2.0
Methods: initialize, tools/list, tools/call, ping
Auth: none, public (Tier 1)
Rate limit: 10 requests/minute, 100/hour per IP

Frequently asked

What is the Peptigraph MCP server?

It is a free, public MCP (Model Context Protocol) server that exposes our deterministic peptide dosing and reconstitution math as tools. AI assistants call these tools instead of guessing the numbers, which prevents hallucinated dosing math.

Which tools does it provide?

Two read-only calculators: reconstitution_calc (vial mg + bacteriostatic water + target dose to units on a U-100 syringe and doses per vial) and reverse_calc (from an emptied vial back to the real concentration and the real dose per injection).

Do I need an account or an API key?

No. The server is public and auth-free (Tier 1). It is rate limited to 10 requests per minute and 100 per hour per IP. No personal data is required.

Does this replace medical advice?

No. Every tool response carries a harm-reduction disclaimer: it is information, not medical advice, and never a directive dose. Peptides carry real risks and a legal grey area.

This is information, not medical advice. Doses from the tools are never directive. Peptides carry real risks and a legal grey area - read our safety guide and browse the checked peptide library.

More tools, one free account

The MCP server is free and needs no sign-up. For the saved injection manager and the Vendor Check, a free account unlocks more.

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