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MCP Price Tracker in Cline

Check and watch product prices on ordinary shop pages. It reads the price out of a product page from JSON-LD, microdata, Open Graph or visible markup, normalises 1.299,00 EUR and 1,299.00 USD alike, and keeps a per-watch history.

Approval per tool call suits a server whose whole job is fetching a page you chose, and the refusal of private, loopback, link-local and metadata addresses is enforced server-side too, before and after every redirect.

What you get in Cline

You say	Tool
What does this cost right now: <product url>?	`price_check`
Watch that page and alert me if it goes under 40.	`watch_add`
Has anything I'm watching hit its target or dropped a lot?	`alerts_pending`

One measured limitation: with a general web fetcher available, a client sometimes answers a price question by fetching the page itself, so nothing is stored. Name the tracker in the sentence.

Install it in Cline

The file is mcp.json, and the key inside it is mcpServers.

Scope	Path
Cline CLI	`~/.cline/mcp.json`
The editor extension	`opened from the Cline panel, not by path; the documentation deliberately calls it the MCP settings JSON used by the extension`

If you also run Claude Desktop, the shortest path there is one click: price-tracker.mcpb from the bundle catalog opens as an extension, with no JSON and no terminal. Cline reads its own config, so here it is:

The config block:

{
  "mcpServers": {
    "price-tracker": {
      "command": "node",
      "args": ["/absolute/path/to/mcp-servers/servers/price-tracker/dist/index.js"],
      "disabled": false,
      "autoApprove": []
    }
  }
}

The node command above wants a built file. From a clone, once:

git clone https://github.com/theluckystrike/mcp-servers.git
cd mcp-servers && npm install
npm run build -w packages/mcp-license -w servers/price-tracker

That writes servers/price-tracker/dist/index.js, and its absolute path is the one argument the config needs.

The npm packages are not published yet, so the form below returns a 404 today. It is here because it is what the entry becomes the day the publish lands, with nothing else changed:

{
  "mcpServers": {
    "price-tracker": {
      "command": "npx",
      "args": ["-y", "@theluckystrike/mcp-price-tracker"]
    }
  }
}

No full-app restart. The MCP settings actions include restarting an unresponsive server if its tools do not appear.

Nothing is published to npm yet, so the working install paths are the ones above: the .mcpb bundle from the bundle catalog, a clone and build, or the hosted URL.

No install: the hosted endpoint

The same server runs at https://mcp.zovo.one/mcp/price-tracker over MCP streamable HTTP, no install. Mint a free token with curl https://mcp.zovo.one/mcp/token, or use a Pro key. It has no filesystem, so a file comes back as a one-hour download link.

Write the transport in. Omitting type falls back to the legacy sse transport, which will not talk to this endpoint:

{
  "mcpServers": {
    "price-tracker": {
      "type": "streamableHttp",
      "url": "https://mcp.zovo.one/mcp/price-tracker",
      "headers": { "Authorization": "Bearer <token>" }
    }
  }
}

Cline notes worth knowing first

Cline is the one client here with an unsafe transport default. `type` selects it, and omitting `type` falls back to the legacy sse transport, so a streamable HTTP endpoint needs it written in or you will debug a server that is fine. Local entries carry "disabled" and an "autoApprove" array.

Free: unlimited checks with a confidence score, 3 watches, 30 observations each, alerts. Pro is $19 once, verified offline.

Questions

Where does the config live?

The CLI reads ~/.cline/mcp.json. For the extension, do not hunt for a path: MCP Servers icon, Configure tab, Configure MCP Servers. cline mcp opens a wizard, and cline config mcp --json is the non-interactive form.

The hosted endpoint will not connect.

Set the transport explicitly. Omitting type falls back to the legacy sse transport, so streamable HTTP needs "type": "streamableHttp" written in.

Should I auto-approve MCP Price Tracker's tools?

Approve the read-only ones and leave the writing ones behind a click: each entry carries an autoApprove array and a disabled flag.

MCP Price Tracker in detail · The same server in Windsurf and Claude.ai and Claude Desktop connectors · Every server in Cline · Guides · Cline docs · Buy Pro

Related guides & tools

Watch a product price with Claude and get told when it drops · Price drop alerts and PDF cleanup from chat: two small jobs you keep postponing · Price lists and rate cards from chat, and the 100x scale gap between the invoice and the quote · MCP Supplier Directory: keep supplier lists from rotting in a spreadsheet