For chat apps and agents · MCP
Let your AI shop around.
Paste one link into Claude, ChatGPT, or any app that speaks the Model Context Protocol, and it can tell you what a product costs at every New Zealand supermarket today, how that price has moved, and which store is cheapest. Free, no account, nothing to install.
https://api.supertracker.nz/mcpSet it up
Pick the app you use. Each one takes the same link; only the menu it goes in differs.
Claude
Free (one custom connector), Pro, Max, Team and Enterprise
Click Add to Claude above, or open claude.ai (or the desktop app) → your profile → Settings → Customize → Connectors → Add custom connector.
Name it “Super Tracker” and paste this as the Remote MCP server URL. If the dialog asks about authentication, choose None.
Remote MCP server URL https://api.supertracker.nz/mcpClick Add. Then, in a chat, click + at the bottom left of the message box, hover Connectors, and switch Super Tracker on.
Ask about a price. Claude may ask permission the first time it uses a tool.
Connectors are added on the web or desktop app and then appear in the phone apps on the same account. On a Team or Enterprise plan an owner adds it under organisation settings first. Claude Code picks up the same connector automatically when signed in to the same account.
Try asking
The tools read like the site: search, then the product, then its history or its stores. The app works that out on its own. These are the kinds of questions it answers well.
- “What does 2 litres of blue-top milk cost at each supermarket today, and where is it cheapest?”
- “Has butter gone up since August? Show me the history at Pak’nSave and Woolworths.”
- “Which supermarket in Tokoroa is cheapest overall, and what is unusually dear there?”
- “Which chain is cheapest on the Stats NZ food basket right now, and by how much?”
- “Find the cheapest Weet-Bix per kilo across every chain.”
- “What is on special at New World this week in the chilled aisle?”
Good to know
- It only reads. Nothing your app does here changes anything, and there is nothing to sign in to or pay for.
- Prices are what the supermarkets advertise online. In store may differ. Money comes back in cents and dates are New Zealand dates; the app turns those into dollars and days for you.
- There is a fair-use budget. Each tool call is one request against the same allowance as the API: 300 a minute and 10,000 a day per address, which is far more than a conversation uses.
- It is not a download. An app asked for every price will be told about the nightly exports instead; the server's own instructions say the same.
- Docs the model can read. llms.txt and the full reference as Markdown live on the API host, and the server exposes both as MCP resources.
What it can do
One tool per public API endpoint, same names, same JSON back. This list is read live from the API's own description, so it is always the current set.