Stienhardt is answering right now. Last checked 7 min ago. It exposes 13 tools. Last commit 8 Sep 2026.
Stienhardt (NYC): shop live Lab Grown Diamonds, engagement rings, jewelry. Search, cart, checkout.
Uptime history
17 days of history
17 days agonow
100.0%
Uptime 24h
92 of 92 checks
13
Tools
read from the server
182 ms
Response time
average over 24h
0
Stars
last commit 8 Sep 2026
What changed 3
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 September 2026. No other catalogue keeps this.
9 Sep
3 tools changed the parameters they ask for
complete_checkout, create_checkout, update_checkout
Nothing serious here today
Today is the operative word: we check Stienhardt every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.
run in your terminal
claude mcp add stienhardt-store --transport http https://stienhard-stones.myshopify.com/api/ucp/mcp~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"stienhardt-store": {
"url": "https://stienhard-stones.myshopify.com/api/ucp/mcp"
}
}
}~/.codex/config.toml
[mcp_servers.stienhardt-store]
url = "https://stienhard-stones.myshopify.com/api/ucp/mcp".cursor/mcp.json
{
"mcpServers": {
"stienhardt-store": {
"url": "https://stienhard-stones.myshopify.com/api/ucp/mcp"
}
}
}.vscode/mcp.json
{
"mcpServers": {
"stienhardt-store": {
"url": "https://stienhard-stones.myshopify.com/api/ucp/mcp"
}
}
}Available tools 13
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
cart
create_cart
Creates a new cart
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
get_cart
Get the cart contents
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
update_cart
Perform updates to a cart.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
checkout
create_checkout
Creates a checkout. Returns checkout details, including line items, totals, and any applicable discounts or taxes.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
get_checkout
Returns details about the checkout, including line items, totals, and any applicable discounts or taxes.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
update_checkout
Updates a checkout. Returns checkout details, including line items, totals, and any applicable discounts or taxes.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
cancel
cancel_cart
Cancels a cart.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
cancel_checkout
Cancels a checkout.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
catalog
search_catalog
Search for products from the online store, hosted on Shopify.
This tool can be used to search for products using natural language queries, specific filter criteria, or both.
At least one of query or filters must be provided.
Results are paginated, with initial results limited to improve experience.
Use the pagination.cursor from the response to fetch additional pages when users request more results.
Response conforms to the UCP catalog search capability (dev.ucp.shopping.catalog.search).
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
complete
complete_checkout
Completes a checkout and returns the checkout result. Returns details about the completed checkout, including order ID, Thank You Page URL, or any errors encountered.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
lookup
lookup_catalog
Look up multiple products or variants by identifier.
Use this tool to resolve multiple product/variant IDs in a single request.
Supports:
- Product IDs (gid://shopify/Product/...): Returns product with match: "featured"
- Variant IDs (gid://shopify/ProductVariant/...): Returns parent product with the exact variant
Results are grouped by product. Each variant includes an inputs array showing
which request ID resolved to it and whether the match was exact or featured.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
Maximum 10 IDs per request.
order
get_order
Get the details of an order
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
product
get_product
Retrieve complete product detail by identifier. Returns a singular product
with a relevant set of variants, exact pricing, and real-time availability.
Supports interactive option selection via selected and preferences parameters
for variant narrowing and availability signals. Use for product detail page
rendering and purchase decisions.
Prices in the response are integers in the currency's ISO 4217 minor units, paired with
a currency code: {"amount": 600, "currency": "USD"} is $6.00 and {"amount": 2500,
"currency": "USD"} is $25.00. Convert to major units before quoting a price to a buyer
(divide by 100 for two-decimal currencies such as USD and EUR; zero-decimal currencies
such as JPY are already whole units).
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://stienhard-stones.myshopify.com/api/ucp/mcp | streamable-http | answering | 163 ms | 7 min ago |
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Stienhardt — questions
Answers built from our own checks of this server.
What can Stienhardt do?
It exposes 13 tools, read directly from the server on our last check. Among them: cancel_cart, cancel_checkout, complete_checkout, create_cart, create_checkout, get_cart and 7 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 →
What is Stienhardt mostly used for?
Its tools cluster around cart, checkout and cancel. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Stienhardt working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 182 ms. The bar chart above shows every period we have measured.
How do I connect Stienhardt?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Stienhardt need an API key?
No. Stienhardt completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 13 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Stienhardt?
It answers our handshake in 182 ms on average, which is faster than 69% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Stienhardt open source?
Yes — it is published under the MIT licence, written in Python and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.