Vouchernaut

About

Vouchernaut is a UK shopping guide exposed as MCP tools. You can search stores and their discount codes (with shopper reports of whether they worked), compare product prices with price history, find phone and SIM-only deals with full contract costs, browse events in UK towns, and compare airport parking.

It runs as a hosted streamable HTTP endpoint at https://vouchernaut.com/mcp. No sign-in or API key is needed. All tools are read-only. Links in results may earn Vouchernaut a commission, which the results disclose.

What you can do

• Find UK stores and their live discount codes
• See how many shoppers said a code worked or failed
• Search products with price history and best-code price
• List recent price drops across UK stores
• Compare phone and SIM-only deals by total contract cost
• Find events and things to do in UK towns
• Compare airport parking prices for given dates

Tools 17

• search_storesRead-only

  Search UK stores by name or category with their best offers and codes.

• get_store_offersRead-only

  List every live discount code and deal for one UK store.

• search_productsRead-only

  Search products across UK stores with prices, best-code price and price history notes.

• get_productRead-only

  Get one product's variants, price history, best code and other stores.

• price_dropsRead-only

  List products whose price fell in the last 30 days, biggest fall first.

• check_dealRead-only

  Is this UK price a real deal?

• find_phone_dealsRead-only

  Compare UK contract deals for a phone with total costs and price rises.

• sim_only_dealsRead-only

  Compare UK SIM-only plans by monthly price, total cost, data and network.

• whats_onRead-only

  Find gigs, comedy, theatre and things to do in about 90 UK places.

• airport_parkingRead-only

  Compare UK airport car parks with full prices for given dates.

• get_poll_resultRead-only

  Show results of Vouchernaut reader polls, or list the polls.

• find_softwareRead-only

  Compare software and AI tools with price, free plan, trial and reviews.

Read from the live server on 26 Oct 2026. Read-only, Writes and Can delete are hints the server declares; your client decides whether to ask before running a tool.

Example prompts

• Find working discount codes for Currys

• Which flower products dropped in price this month?

• Compare SIM-only deals under £15 a month with 50GB data

• Compare parking at Heathrow from 3 to 10 December

Set up

Every client connects to vouchernaut.com. Pick yours; the page remembers your choice.

claude mcp add --transport http vouchernaut https://vouchernaut.com/mcp

https://vouchernaut.com/mcp

{
  "mcpServers": {
    "vouchernaut": {
      "url": "https://vouchernaut.com/mcp"
    }
  }
}

code --add-mcp '{"name":"vouchernaut","type":"http","url":"https://vouchernaut.com/mcp"}'

{
  "servers": {
    "vouchernaut": {
      "type": "http",
      "url": "https://vouchernaut.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "vouchernaut": {
      "serverUrl": "https://vouchernaut.com/mcp"
    }
  }
}

codex mcp add vouchernaut --url https://vouchernaut.com/mcp

[mcp_servers.vouchernaut]
url = "https://vouchernaut.com/mcp"

gemini mcp add --transport http vouchernaut https://vouchernaut.com/mcp

{
  "mcpServers": {
    "vouchernaut": {
      "type": "http",
      "url": "https://vouchernaut.com/mcp"
    }
  }
}

Embed

Show Vouchernaut in a README or on your site. Each embed links to this page, uses the server’s own URL, and sets no cookies. How embeds work

The card, the iframe and the JSON are in English. Add ?lang=it, fr, de or es to their address for another language.

README badge Website card iframe JSON AI prompt

README badge

Markdown

[![Vouchernaut on mcp.tc](https://mcp.tc/i/vouchernaut/badge.svg)](https://mcp.tc/i/vouchernaut)

HTML

<a href="https://mcp.tc/i/vouchernaut"><img src="https://mcp.tc/i/vouchernaut/badge.svg" alt="Vouchernaut on mcp.tc" height="20"></a>

It follows the reader’s light or dark mode. Add ?theme=light or ?theme=dark to fix it, or ?style=compact to show the mark without the word.

Website card

HTML

<script src="https://mcp.tc/w/vouchernaut.js" async></script>

The card appears where the tag is. Add data-theme="dark" or data-size="compact" to the tag to change it. The file holds everything it needs, so it makes no other requests and sets no cookies.

iframe

HTML

<iframe src="https://mcp.tc/embed/vouchernaut" title="Vouchernaut on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>

Use it on pages that don’t allow scripts. Add ?theme=light or ?theme=dark to the address to fix the colors.

JSON

The listing as data for your own pages and tools: name, tagline, the server’s own URL, tools and the “Add to” links. Any site can read it (CORS is open).

https://mcp.tc/i/vouchernaut.json

What each field means

AI prompt

Paste this into an AI coding assistant, such as Claude Code or Cursor, and it adds the Vouchernaut card to your site.

Markdown

Add the mcp.tc card for Vouchernaut, an MCP server, to my website. It is one static script: no build step, no package to install, no cookies.

Put this tag where the card should appear. The card renders right before it:

```html
<script src="https://mcp.tc/w/vouchernaut.js" async></script>
```

To show the card somewhere else, put this placeholder there and load the same script once, for example before `</body>`. Keep the link inside: visitors without JavaScript see it.

```html
<div data-mcptc="vouchernaut"><a href="https://mcp.tc/i/vouchernaut">Vouchernaut on mcp.tc</a></div>
```

Options:
- `data-theme="light"` or `"dark"` on the tag or the placeholder fixes the colors. Without it, the card follows the visitor’s light or dark mode.
- `data-size="compact"` gives a smaller card without the tagline.
- The CSS variable `--mcptc-max-width` on the placeholder or a parent sets the width (default `520px`).
- `?lang=` on the script URL sets the card’s language: `en`, `it`, `fr`, `de` or `es`.

If the site has a Content Security Policy, allow `script-src https://mcp.tc` and `img-src data:` (the icon is inline).

For a README or other Markdown docs, use the badge instead:

```markdown
[![Vouchernaut on mcp.tc](https://mcp.tc/i/vouchernaut/badge.svg)](https://mcp.tc/i/vouchernaut)
```

Reference: https://mcp.tc/embed

Change history

We read this server’s tool list every 3 hours and record what changes. Last read 26 Oct 2026, 14:41 UTC.

1. 24 Oct 2026, 10:36 UTC, Automatic check

   4 tools changed. Server instructions changed.

   New server instructions

   Details, 24 Oct 2026, 10:36 UTC

   Changed 4

   • fetchdescription
     Before

     The full text of one result from search: a store's live codes and deals with their links, a product's price and code, a phone's deals, or a buying guide.

     After

     The full text of one result from search: a store's live codes and deals with their links, a product's price and code (a code itself only where the brand has approved AI assistants, else the store's vouchernaut.com page), a phone's deals, or a buying guide.

   • get_productdescription
     Before

     One product, by its `ref` ("<store>/<product>") or its vouchernaut.com page: every variant's price and stock, the store's best discount code that covers it and the price after it (where the brand keeps its codes to vouchernaut.com, the saving and the store page that reveals the code), its price history (lowest, typical, now), delivery, the same product at other stores and a tracked link to buy.

     After

     One product, by its `ref` ("<store>/<product>") or its vouchernaut.com page: every variant's price and stock, the store's best discount code that covers it and the price after it (the code itself only where the brand has approved AI assistants, else the saving and the store page that reveals it), its price history (lowest, typical, now), delivery, the same product at other stores and a tracked link to buy.

   • get_store_offersdescription
     Before

     Every live discount code and deal Vouchernaut lists for one UK store, in the order its store page shows them: the code itself, what it saves, its terms and end date, how many shoppers said it worked or failed, and a link that opens the store with the offer. Some brands keep their codes to vouchernaut.com: those come without the code (`code_on_page`), linking to the store's vouchernaut.com page, where the shopper reveals it. The store can be named ("Arena Flowers"), or given by its slug or its vouchernaut.com page. Each link may earn Vouchernaut a commission, which every result discloses.

     After

     Every live discount code and deal Vouchernaut lists for one UK store, in the order its store page shows them: what each saves, its terms and end date, how many shoppers said it worked or failed, and a link that opens the store with the offer. A code itself comes only where the brand has approved AI assistants; any other comes without it (`code_on_page`), linking to the store's vouchernaut.com page, where the shopper reveals it. The store can be named ("Arena Flowers"), or given by its slug or its vouchernaut.com page. Each link may earn Vouchernaut a commission, which every result discloses.

   • search_storesdescription
     Before

     Search the UK stores Vouchernaut lists by name or category ("flowers", "Currys", "phone cases"). Each store comes with how many live codes and deals it has, its best few offers with their codes (where the brand allows them here) and tracked links, a link to shop there and its vouchernaut.com page.

     After

     Search the UK stores Vouchernaut lists by name or category ("flowers", "Currys", "phone cases"). Each store comes with how many live codes and deals it has, its best few offers with tracked links (each code itself only where the brand has approved AI assistants, else its vouchernaut.com page), a link to shop there and its vouchernaut.com page.

   Server instructions

   Before

   Vouchernaut is a UK shopping guide. Its tools answer with live data from vouchernaut.com: discount codes and deals for UK stores (with how many shoppers said each worked), product prices across stores with price history, phone and SIM-only deals with their full contract cost, what's on in UK towns, and airport parking. When you show a code, deal, product or plan, give the shopper its `url` as a link: it opens the store with the offer applied where the store allows it. Where an item has `affiliate: true`, say once that Vouchernaut may earn commission through the link (it never changes what's listed or the order). Prices are in pounds. Quote phone and SIM-only monthly prices with their upfront cost, length, total cost and any price rises; unlimited data is subject to fair use. Only say "lowest in 90 days" or "down from" when the result says so. Some brands keep their codes to vouchernaut.com: such an offer comes with `code: null` and `code_on_page: true`, and its `url` is the store's vouchernaut.com page, where the shopper reveals the code. Say the code is on that page; don't look for it elsewhere. search_stores gives each store's best few offers and get_store_offers a store's full list. search_products and price_drops give each product a `ref` that get_product takes. find_software's slugs work with get_store_offers. search and fetch cover the same data for research.

   After

   Vouchernaut is a UK shopping guide. Its tools answer with live data from vouchernaut.com: discount codes and deals for UK stores (with how many shoppers said each worked), product prices across stores with price history, phone and SIM-only deals with their full contract cost, what's on in UK towns, and airport parking. When you show a code, deal, product or plan, give the shopper its `url` as a link: it opens the store with the offer applied where the store allows it. Where an item has `affiliate: true`, say once that Vouchernaut may earn commission through the link (it never changes what's listed or the order). Prices are in pounds. Quote phone and SIM-only monthly prices with their upfront cost, length, total cost and any price rises; unlimited data is subject to fair use. Only say "lowest in 90 days" or "down from" when the result says so. A code itself comes only from brands that have approved AI assistants; any other code comes with `code: null` and `code_on_page: true`, and its `url` is the store's vouchernaut.com page, where the shopper reveals the code. Say the code is on that page; don't look for it elsewhere. search_stores gives each store's best few offers and get_store_offers a store's full list. search_products and price_drops give each product a `ref` that get_product takes. find_software's slugs work with get_store_offers. search and fetch cover the same data for research.

2. 22 Oct 2026, 16:42 UTC, Automatic check

   3 tools changed. Server instructions changed.

   New server instructions

   Details, 22 Oct 2026, 16:42 UTC

   Changed 3

   • get_productdescription
     Before

     One product, by its `ref` ("<store>/<product>") or its vouchernaut.com page: every variant's price and stock, the store's best discount code that covers it and the price after it, its price history (lowest, typical, now), delivery, the same product at other stores and a tracked link to buy.

     After

     One product, by its `ref` ("<store>/<product>") or its vouchernaut.com page: every variant's price and stock, the store's best discount code that covers it and the price after it (where the brand keeps its codes to vouchernaut.com, the saving and the store page that reveals the code), its price history (lowest, typical, now), delivery, the same product at other stores and a tracked link to buy.

   • get_store_offersdescription
     Before

     Every live discount code and deal Vouchernaut lists for one UK store, in the order its store page shows them: the code itself, what it saves, its terms and end date, how many shoppers said it worked or failed, and a link that opens the store with the offer. The store can be named ("Arena Flowers"), or given by its slug or its vouchernaut.com page. Each link may earn Vouchernaut a commission, which every result discloses.

     After

     Every live discount code and deal Vouchernaut lists for one UK store, in the order its store page shows them: the code itself, what it saves, its terms and end date, how many shoppers said it worked or failed, and a link that opens the store with the offer. Some brands keep their codes to vouchernaut.com: those come without the code (`code_on_page`), linking to the store's vouchernaut.com page, where the shopper reveals it. The store can be named ("Arena Flowers"), or given by its slug or its vouchernaut.com page. Each link may earn Vouchernaut a commission, which every result discloses.

   • search_storesdescription
     Before

     Search the UK stores Vouchernaut lists by name or category ("flowers", "Currys", "phone cases"). Each store comes with how many live codes and deals it has, its best few offers with their codes and tracked links, a link to shop there and its vouchernaut.com page.

     After

     Search the UK stores Vouchernaut lists by name or category ("flowers", "Currys", "phone cases"). Each store comes with how many live codes and deals it has, its best few offers with their codes (where the brand allows them here) and tracked links, a link to shop there and its vouchernaut.com page.

   Server instructions

   Before

   Vouchernaut is a UK shopping guide. Its tools answer with live data from vouchernaut.com: discount codes and deals for UK stores (with how many shoppers said each worked), product prices across stores with price history, phone and SIM-only deals with their full contract cost, what's on in UK towns, and airport parking. When you show a code, deal, product or plan, give the shopper its `url` as a link: it opens the store with the offer applied where the store allows it. Where an item has `affiliate: true`, say once that Vouchernaut may earn commission through the link (it never changes what's listed or the order). Prices are in pounds. Quote phone and SIM-only monthly prices with their upfront cost, length, total cost and any price rises; unlimited data is subject to fair use. Only say "lowest in 90 days" or "down from" when the result says so. search_stores gives each store's best few offers and get_store_offers a store's full list. search_products and price_drops give each product a `ref` that get_product takes. find_software's slugs work with get_store_offers. search and fetch cover the same data for research.

   After

   Vouchernaut is a UK shopping guide. Its tools answer with live data from vouchernaut.com: discount codes and deals for UK stores (with how many shoppers said each worked), product prices across stores with price history, phone and SIM-only deals with their full contract cost, what's on in UK towns, and airport parking. When you show a code, deal, product or plan, give the shopper its `url` as a link: it opens the store with the offer applied where the store allows it. Where an item has `affiliate: true`, say once that Vouchernaut may earn commission through the link (it never changes what's listed or the order). Prices are in pounds. Quote phone and SIM-only monthly prices with their upfront cost, length, total cost and any price rises; unlimited data is subject to fair use. Only say "lowest in 90 days" or "down from" when the result says so. Some brands keep their codes to vouchernaut.com: such an offer comes with `code: null` and `code_on_page: true`, and its `url` is the store's vouchernaut.com page, where the shopper reveals the code. Say the code is on that page; don't look for it elsewhere. search_stores gives each store's best few offers and get_store_offers a store's full list. search_products and price_drops give each product a `ref` that get_product takes. find_software's slugs work with get_store_offers. search and fetch cover the same data for research.

3. 19 Oct 2026, 07:37 UTC, Automatic check

   4 tools added.

   Details, 19 Oct 2026, 07:37 UTC

   Added 4

   • calculate_take_home_payRead-only

     What a UK employee's pay comes to after income tax, National Insurance (category A), student loan and a workplace pension, for the current tax year, by the year, month and week, with each tax band, the sources and a link to the worked answer on vouchernaut.com. Worked on the year as a whole, as HMRC's rates are; a payslip works each pay period on its own, so it can be a few pounds a year different. Covers England, Wales, Northern Ireland and Scotland and everyday tax codes, not K codes, benefits in kind, other income or the self-employed. Information, not financial advice.

   • check_dealRead-only

     Whether a product's price at a UK shop is a real deal, from Vouchernaut's own record of that shop's prices: pass a product page link from the shop, a barcode, a product's name or a `ref` ("<store>/<product>"). Gives the verdict on today's price (lowest we've recorded, no change, cheaper before and when), the shops selling the same product for less today, and a tracked link to buy. Says plainly when the shop isn't one whose prices are tracked. Never uses shops' own "was" prices or RRPs.

   • check_refund_rightsRead-only

     The UK consumer rights that apply to something bought (faulty, not arrived, poor service or a change of mind), strongest first, each with its last day as a date and the law it comes from (Consumer Rights Act 2015, Consumer Contracts Regulations 2013), then what the way it was paid adds (section 75, chargeback, PayPal, buy now pay later) and where to go next. Legal information, not legal advice: it never decides a claim.

   • student_loan_repaymentsRead-only

     What a UK student loan costs a month now, and whether it's cleared or written off first: a month-by-month projection to the plan's write-off on stated assumptions (pay rises and RPI, which the caller may change), with this year's threshold and interest rate, the total repaid and the sources. A projection, not a forecast, and information, not financial advice: it never says whether to pay a loan off early.

4. 16 Oct 2026, 07:22 UTC, Automatic check

   Tracking started: 13 tools.

FAQ