For AI assistants
Use Deer with your AI assistant
Deer Supply works with Claude, ChatGPT and any assistant that supports MCP (the Model Context Protocol). Add it once and your assistant can look up Deer's products, today's prices and delivery dates. Sign in with your Deer account and it can also help with your orders and your health charts.
The Deer Supply MCP server
One address for everything. Shopping works straight away. For your orders and health charts, your assistant sends you to deer.supply to sign in with your usual email code, and you choose what it may do.
https://deer.supply/api/mcpShopping
- Search products, sizes and today's prices in CAD
- Compare Retatrutide, Tirzepatide and Semaglutide
- Trial-average weight-loss estimates at your weight
- Exact cart totals and delivery dates for your postal code
- Shipping, refund and money-back policies, and lab reports
- A cart link you open to check out yourself
- Track an order with its number and email
Your account, after you sign in
- Your orders, tracking and store credit
- Your weigh-ins, treatment plan and side effects
- Log a weigh-in or import your weight history
- Report or resolve a side effect
- Turn reminder emails on or off
Add Deer to your assistant
- 1Claude: open Settings, then Connectors, choose Add custom connector and paste the address above.
- 2ChatGPT: open Settings, then Connectors (developer mode) and create a connector with the address above.
- 3Any other assistant or agent: add a remote MCP server (Streamable HTTP) with the address above. When you ask about your account, assistants that support it open Deer's sign-in. One that does not can still shop with Deer, but cannot reach your account yet.
Your account stays yours
- You sign in on deer.supply with your own email code. Your assistant never sees it.
- You choose what it may do: your orders only, or your health charts too, read-only or with updates.
- It can never pay, place an order, or change your email or sign-in. To buy, it gives you a cart link and you check out yourself.
- Disconnect it at any time in Account settings, and its access ends at once.
For developers
Machine-readable documents for agents and the people building them.
- Plain-text guide for language models/llms.txt
- MCP server card/.well-known/mcp/server-card.json
- OAuth 2.1 metadata (PKCE, dynamic client registration)/.well-known/oauth-authorization-server
- Trust report: orders shipped, de-identified outcomes, lab reports/api/trust
Weight-loss figures are averages from named clinical trials, not a prediction for any one person. Nothing an assistant tells you is medical advice: talk to a licensed healthcare professional before starting a medication.