Deer Supply is listed as active in the registry but did not answer our last check. It exposes 19 tools.
Deer Supply (Canada): GLP weight-loss pens, prices, delivery, orders and health. Sign-in required.
Uptime history
24 days of history · worst day 0%
24 days agonow
0.0%
Uptime 24h
0 of 91 checks
19
Tools
read from the server
100 ms
Response time
average over 24h
open, no key
Access
streamable-http
What changed 1
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 20 October 2026. No other catalogue keeps this.
20 Oct
a tool disappeared
get_trust_report
Deer Supply does not always answer
Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.
run in your terminal
claude mcp add deer-supply --transport http https://deer.supply/api/mcpSettings → Connectors → Add custom connector, then paste this address
https://deer.supply/api/mcp~/.codex/config.toml
[mcp_servers.deer-supply]
url = "https://deer.supply/api/mcp".cursor/mcp.json
{
"mcpServers": {
"deer-supply": {
"url": "https://deer.supply/api/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"deer-supply": {
"type": "http",
"url": "https://deer.supply/api/mcp"
}
}
}Available tools 19
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
health
get_my_health
Requires signing in with a Deer account. Each health profile on the account (one sign-in can chart several people): its id (needed to log anything), recent weigh-ins in pounds and the trend, the treatment plan (medication, week, current dose, next injection, upcoming dose steps), side effects with their ids, reminder settings and the weigh-in reward.
set_health_emails
Requires signing in with a Deer account. Turn a profile's weigh-in reminder emails and/or reorder alert emails on or off.
account
get_my_account
Requires signing in with a Deer account. A plain-language summary of the signed-in customer's Deer account: their name, orders with status and tracking, store credit and rewards, and (when health access was granted) each health profile's weigh-ins, plan and side effects. The same picture the store's own assistant has. Start here.
cart
create_cart_link
A deer.supply link that opens the cart with these items already in it, for the person to review and check out themselves (they enter their own delivery details and payment). Agents cannot place orders.
compare
compare_weight_loss_medications
Side-by-side comparison of the three GLP weight-loss medications Deer Supply sells (Semaglutide, Tirzepatide, Retatrutide): mechanism, generation, the landmark trial's average weight loss, maintenance dose, today's starting price and lowest price per mg in CAD. Use this when someone is choosing a weight-loss option.
delivery
delivery_estimate
When an order placed now would ship and arrive, for a Canadian postal code, using the dates Deer quotes on its product pages (orders by noon Eastern ship that weekday; pens travel on the fastest service).
estimate
estimate_weight_loss
What the clinical trials averaged for someone at a given starting weight, per medication, at 6, 12 and 18 months, using the same curves as deer.supply/calculator. These are trial averages, not a prediction for any one person.
help
get_help
Answers from Deer Supply's FAQ (shipping, storage, payment, using the pens, eligibility, returns) plus links to its policies. Pass the question; leave it empty for the whole FAQ.
import
import_weights
Requires signing in with a Deer account. Add many past weigh-ins at once (from a scale app, a spreadsheet, a photo the person shared). Days already logged are skipped. Show the person the list and get their OK first.
lab
get_lab_results
Third-party lab (COA) reports Deer Supply publishes per product size. Optional product_id.
log
log_weight
Requires signing in with a Deer account. Record a weigh-in on one of the customer's health profiles. Confirm the number with the person first.
orders
list_my_orders
Requires signing in with a Deer account. The signed-in customer's orders, newest first: number, date, status, total, items, tracking number and expected arrival.
product
get_product
Everything Deer Supply publishes about one product: what it is, sizes and prices, the published dosing schedule, what is in the box, lab (COA) reports, and the related FAQ answers. product_id comes from search_products (e.g. 'retatrutide').
products
search_products
Search Deer Supply's catalog (Canada). Weight loss: Retatrutide, Tirzepatide and Semaglutide as pre-filled, ready-to-use pens; also recovery products and ancillary capsules. Returns each product with its sizes, today's price in CAD (sales included), price per mg, quantity breaks, stock and links. Call with no arguments to list everything.
quote
quote_cart
Price a cart exactly as Deer Supply's checkout would: line prices with any sale or quantity break, an optional coupon code, shipping and the total in CAD, plus a delivery estimate when a Canadian postal code is given. variant_id values come from search_products. Nothing is reserved or ordered.
report
report_side_effect
Requires signing in with a Deer account. Send a side effect to the customer's care team on one profile. If it sounds severe, tell the person to get medical help right away (call 911 or go to an emergency department) as well; this report is not an emergency channel.
resolve
resolve_side_effect
Requires signing in with a Deer account. Mark one of the profile's open side effects as resolved (side_effect_id from get_my_health). Reopening one is the care team's job.
store
get_store_info
Who Deer Supply is and how buying works: what it sells, where it ships, payment methods accepted right now, shipping costs, the money-back policy, lab testing, and how to reach a person.
track
track_order
Status of a Deer Supply order, given its order number AND the email it was placed with (the same check as deer.supply/track). Returns the status, dates, items and tracking number. Never returns addresses or payment details.
Tools removed
Tools this server used to expose. Anything built against them stopped working on the day they went.
get_trust_report
removed 20 Oct 2026
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://deer.supply/api/mcp | streamable-http | answering | 100 ms | 4 min ago |
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Deer Supply — questions
Answers built from our own checks of this server.
What can Deer Supply do?
It exposes 19 tools, read directly from the server on our last check. Among them: compare_weight_loss_medications, create_cart_link, delivery_estimate, estimate_weight_loss, get_help, get_lab_results and 13 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
Is Deer Supply working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 100 ms. The bar chart above shows every period we have measured.
Did Deer Supply ever remove tools?
Yes. get_trust_report is no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.
The registry lists Deer Supply as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Deer Supply?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Deer Supply need an API key?
No. Deer Supply completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 19 of them are readable on this page. This is what we observed, not what the docs claim.