Lowvyn is a remote MCP server that lets an assistant search Canadian product prices, find the same item cheaper at other .ca retailers, and check whether a deal
What you can do
Search the Canadian product catalogue by keyword, category, max price or retailer, or by a natural-language description of a need, and list covered categories and tracked retailers with item counts and update times. Look up a product by Lowvyn ID or retailer URL to get its title, current CAD price, Lowvyn Score, Deal Verdict and price summary. Find the same physical product at other Canadian retailers using verified UPC matches, with current prices and savings. Retrieve daily price history to show trends or check whether a sale is genuine. Verify a claimed price against price history and return a verdict such as real deal, modest deal, average or bad time.
When to use it
Useful when a shopper asks whether something can be found cheaper elsewhere, whether a sale is genuine, or how a price has moved over time. Also suited to browsing what is available in a category under a budget across Canadian retailers.
Requirements
A remote endpoint reached over streamable HTTP; no package, environment variables or headers are declared. The catalogue covers Canadian retailers only, and prices are in CAD.
Before you install
The server is read-only lookup and search; it does not buy, reserve or change anything. Results depend on Lowvyn's own catalogue and scoring, so prices and verdicts should be treated as Lowvyn's data rather than a live retailer quote. No authentication is declared, so avoid sending personal or account details in queries.
Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/com.lowvyn%2Fmcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.
Given a product (by Lowvyn ID or retailer URL), return the same physical product on other Canadian retailers with their current prices and savings. Uses verified UPC matches. Use this when a user wants to know 'can I get this cheaper somewhere else?'.
ParametersidOrUrlrequired
get_categories
List the product categories Lowvyn covers, with item counts. Useful for narrowing search_products calls.
Takes no parameters.
get_price_history
Return the daily price history for a product as (date, price) pairs, up to N days. Use this to verify whether a 'sale' is genuine or whether the price has been higher in the past, or to show a price trend in an answer to the user.
ParametersdaysidOrUrlrequired
get_product
Look up a product by Lowvyn ID OR retailer URL (amazon.ca / walmart.ca / bestbuy.ca / canadiantire.ca). Returns title, current price (CAD), Lowvyn Score (0-100), Deal Verdict, and price summary (current / all-time low / all-time high).
ParametersidOrUrlrequired
get_retailers
List the Canadian retailers Lowvyn currently tracks, with item counts and last-update timestamps.
Takes no parameters.
intent_search
Search the Canadian catalogue by a natural-language description of a NEED rather than keywords. Give it what the shopper actually wants (e.g. 'a quiet gaming laptop under $1500', 'a reliable stroller for travel') and it returns the best-matching products with their current price (CAD), Lowvyn Score, and Deal Verdict, plus what it understood (category, budget, must-haves). A relevance model does the matching; the deterministic deal gate decides the verdict — it never inflates a deal. Use this when the user describes a use case, budget, or constraints instead of naming a product; use search_products for a plain category/price filter. Each result carries an id + canonicalUrl you can pass to get_product, verify_deal, or find_cheaper.
Parameterssortqueryrequired
search_products
Search the Canadian product catalogue. Filter by category slug, max price (CAD), and retailer. Returns up to 20 matching products with current price and Lowvyn Score. Use this when a user is exploring what is available in a category rather than asking about a specific product. Each result carries an id + canonicalUrl you can pass to get_product, verify_deal, find_cheaper, or get_price_history.
ParametersqueryrequiredcategorymaxPriceretailer
verify_deal
Given a product (by Lowvyn ID, retailer URL, or a lowvyn.com product URL from another tool's result) and an optional claimed price, return whether the deal is genuine. Compares against Lowvyn's price history and returns a verdict ('real_deal', 'modest_deal', 'average', 'bad_time', 'insufficient_data') plus an explanation. Use this first when a user asks 'is this actually a good price?'. Accepts the id or canonicalUrl from a search_products / intent_search result directly.
ParametersidOrUrlrequiredclaimedPrice
Version history
1
v0.1.2LatestSep 16, 2026
Score
83%
83% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.