Vouchernaut

npx add-mcp 'https://vouchernaut.com/mcp'

Let ChatGPT, Claude, Muse and Grok find you fresh discount codes

Ask an assistant for a code and it guesses from old web pages. Connect it to Vouchernaut and it checks the codes I list today instead: which work, who they're for and when they end.

Free no account, no sign-in, no card

Works in ChatGPT, Claude, Grok, Perplexity today, with codes for UK shops.

Your prompt

Find me a discount code for MyFlowers that works today, using Vouchernaut (https://vouchernaut.com/mcp). If you can't use Vouchernaut yet, walk me through adding it as a connector, then try again.

Paste it into ChatGPT, Claude, Grok or Perplexity. If it isn't connected yet, it walks you through it.

Or add it yourself

https://vouchernaut.com/mcp

If you buy through a link your assistant gives you, the shop may pay Vouchernaut a commission. It never changes which codes I list or their order.

See it work in ChatGPT

ChatGPT asking Vouchernaut for a MyFlowers code: today's codes, who each is for, and a button to use it.

Connect your assistant once

It takes about a minute, and you only do it once. Every assistant asks for the same address:

https://vouchernaut.com/mcp

• ChatGPT

  Works now
  1. On chatgpt.com, open Plugins from the menu on the left. 2. Press Add, then Add custom MCP server. 3. Call it Vouchernaut, paste the address, choose No authentication, tick the box and press Create as a plugin. 4. In any chat, type @Vouchernaut and ask for a code. Vouchernaut is on its way into ChatGPT's plugin directory, which will make this one tap.

• Claude

  Works now
  1. Press Add to Claude, sign in if Claude asks, then press Connect to Claude. 2. Ask Claude for a code; it checks Vouchernaut by itself. Vouchernaut is in Claude's connector directory, so it works in the Claude apps on your phone and computer too.

• Grok

  Works now
  1. Go to grok.com and open Connectors. 2. Press New Connector, then Custom. 3. Paste the address and save.

• Perplexity

  Works now
  1. Open Settings, then Connectors. 2. Add a custom connector, choose Remote and No authentication. 3. Paste the address. Connectors need Perplexity Pro or Max.

• Muse and Meta AI

  Coming soon I've applied for both. Once Meta approves Vouchernaut, you'll find it in Muse's connectors, and in Meta AI on the app and the glasses.

What it finds for you

Your assistant reads the same pages you'd find here, so its answers match the site, links and all.

• Discount codes

  Today's codes and deals for UK shops, how many shoppers said each one worked, who it's for and when it ends. Every shop →

• Real price drops

  Products with their price history, so it can tell a genuine drop from a sale sticker. Price drops →

• Phones and SIM-only

  Every plan's monthly price with its upfront cost, length, total and the rises already announced. Phone deals →

• What's on

  Gigs, comedy, theatre and things to do in about 90 UK places. What's On →

• Airport parking

  Car parks at the UK's main airports, with full prices for your dates where providers give them. Airport parking →

• Software

  AI and work apps with their plans, free options and what reviewers say. Software →

Things to ask it

Once it's connected, ask the way you'd ask a friend. A few to start:

Is there a discount code for MyFlowers that works today?

Which flower bouquets under £50 have genuinely dropped in price?

What's the cheapest iPhone 16 deal over 24 months, price rises included?

What's on in Manchester this weekend?

Compare meet and greet parking at Gatwick from 6 to 13 November.

Which AI note-taking app has a free plan?

Good to know

Is it free?

Yes. There's no account, no sign-in and no card. You connect your assistant once and ask away.

Why not just ask my assistant without it?

On its own, an assistant finds codes on old web pages and in what it remembers, so many have expired or never worked. With Vouchernaut it checks the codes I list today, how many shoppers said each one worked, and when it ends.

Does Vouchernaut see my chats?

No. Your assistant only sends what it's looking up, such as a shop's name or a phone model. I never get your name, your email or your conversation.

How does Vouchernaut make money?

If you buy through a link your assistant gives you, the shop may pay me a commission, as it would from my site. You pay the same price, and commission never changes which codes I list or their order. Your assistant is told to say so.

Will the codes work?

Every code comes with how many shoppers said it worked or failed, and expired codes drop off. Shops can still change their terms, so check the price at checkout before you pay.

Why does my assistant send me to Vouchernaut for a code?

I only let a brand's codes into assistants once the brand has said yes. Until then your assistant tells you which codes I have and what they save, and links you to the shop's page on Vouchernaut, where you can reveal each one.

What else can it look up?

Products and whether a price drop is real, phone and SIM-only deals with what they cost over the whole contract, what's on in about 90 UK places, and airport parking at the UK's main airports. It covers UK shops only.

For developers

Vouchernaut is a public, read-only MCP server at https://vouchernaut.com/mcp: Streamable HTTP, no authentication, MCP 2026-07-28 and earlier revisions. It's in the official MCP Registry as com.vouchernaut/deals, with a server card at /mcp/server-card. Each user can make 60 tool calls a minute and 2,000 a day. Every tool only reads. Links to stores go through vouchernaut.com and carry an affiliate disclosure.

Add it to a coding app

Each opens the app with Vouchernaut filled in, for you to confirm.

• Add to Cursor
• Add to VS Code

Or from a terminal

Claude Code

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

Codex

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

Any other coding agent

npx add-mcp https://vouchernaut.com/mcp

All 17 tools and what they take

• Find UK stores with discount codes

  search_stores 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. query required A store name or what's being bought · string limit Stores to return · integer

• Get a store's discount codes and deals

  get_store_offers 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. store required The store's name, slug or vouchernaut.com store page URL · string kind Only codes, only deals, or both · all, code, deal

• Search products across UK stores

  search_products Search the products UK stores sell through Vouchernaut (flowers, gifts, hampers, candles, homeware and more): title, store, price, the price after the store's best discount code, honest price-history notes ("Down from", "Lowest in 90 days"), the same product at other stores, and a tracked link to buy. Each product has a `ref` ("<store>/<product>"). query required What the shopper wants, e.g. "red roses", "birthday hamper" · string max_price Most it should cost, in pounds · number min_price Least it should cost, in pounds · number store Only this store (its slug, e.g. "arena-flowers") · string type A product type, e.g. flowers, plants, chocolate, food, drinks, candles, beauty, jewellery, cards, balloons, toys, home; children with a dot ("flowers.dried") · string limit Products to return · integer on_sale Only products below the store's full price · boolean sort Order: best match (default), cheapest, dearest, newest or biggest price drop · relevance, price-asc, price-desc, new, drop

• One product's price, code and history

  get_product 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. product required The product's ref ("candles-direct/sandalwood-rose") or its page URL · string

• Products whose price just dropped

  price_drops Products across UK stores whose price fell in the last 30 days from a price the store had held for at least 28 days, biggest fall first. Each comes with the old and new price and a tracked link. Narrow by search words, product type, store or price. query Search words, e.g. "orchid" · string max_price Most it should cost, in pounds · number min_price Least it should cost, in pounds · number store Only this store (its slug, e.g. "arena-flowers") · string type A product type, e.g. flowers, plants, chocolate, food, drinks, candles, beauty, jewellery, cards, balloons, toys, home; children with a dot ("flowers.dried") · string limit Products to return · integer

• Is this UK price a real deal?

  check_deal 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. query required A product link from the shop, a barcode (8 to 14 digits), a product name ("dairy milk 200g") or a ref · string

• Compare UK deals for a phone

  find_phone_deals Every deal UK retailers list for one phone on Vouchernaut's phone finder: monthly price with its upfront cost, contract length, total cost over the contract with announced price rises included (and each rise in pounds and month), data, network and seller, with a tracked link to the retailer. Filter by storage, colour, condition, budget, network, contract length and data. phone required The phone, e.g. "iPhone 16", "Galaxy S25 Ultra" · string storage Storage in GB · integer colour Colour as the retailers name it · string condition new, refurbished, pre-owned max_upfront Most upfront, in whole pounds · integer network Only plans on this network (brands on it, like iD Mobile on Three, count) · EE, O2, Three, Vodafone max_monthly Most a month, in whole pounds · integer months Contract length in months (1 is monthly rolling) · 1, 12, 24, 36 min_data At least this many GB a month, or unlimited · 10, 50, 100, unlimited upgrade Deals for customers already on the network · boolean sort Lowest total cost (default), lowest monthly, lowest upfront, or most data · total, monthly, upfront, data limit Deals to return · integer

• Compare UK SIM-only plans

  sim_only_deals SIM-only plans UK retailers list on Vouchernaut: monthly price with upfront cost, contract length, total cost with announced price rises included, data, network and seller, with a tracked link. Filter by data, budget, network and contract length. Unlimited data is subject to fair use. network Only plans on this network (brands on it, like iD Mobile on Three, count) · EE, O2, Three, Vodafone max_monthly Most a month, in whole pounds · integer months Contract length in months (1 is monthly rolling) · 1, 12, 24, 36 min_data At least this many GB a month, or unlimited · 10, 50, 100, unlimited upgrade Deals for customers already on the network · boolean sort Lowest total cost (default), lowest monthly, lowest upfront, or most data · total, monthly, upfront, data limit Deals to return · integer

• What's on in a UK town or city

  whats_on Gigs, comedy, theatre, festivals, exhibitions and things to do in about 90 UK places, from ticket and experience sellers: title, date and time, venue and address, the lowest price where the seller's price includes its fees, and a tracked link to buy tickets. Filter by when, a date, category or words. city required A UK town or city, e.g. "Manchester" · string when today, tomorrow, weekend, week (next 7 days) or month (next 30) · today, tomorrow, weekend, week, month date One day, YYYY-MM-DD (London time) · string category gigs, comedy, theatre, classical, clubs, festivals, talks, exhibitions, film, football, sport, special, tours, attractions, food-drink, classes, outdoors, day-trips, games query An artist, show or words to match · string things_to_do Experiences and attractions open any day, rather than dated events · boolean limit integer

• Compare UK airport parking

  airport_parking Car parks UK parking providers sell at the UK's main airports: meet and greet, park and ride and on-airport, with transfer times, terminals, Safer Parking status, compulsory charges on the day and, for given drop-off and pick-up times, the full price including known fees, with a tracked link to book. Prices are only for a stay given by `from` and `to`. airport required Airport name or IATA code, e.g. "Gatwick", "MAN" · string from London local time, YYYY-MM-DDTHH:mm · string to London local time, YYYY-MM-DDTHH:mm · string type Only this kind of car park · meet-and-greet, park-and-ride, on-airport limit integer

• Vouchernaut reader poll results

  get_poll_result Results of Vouchernaut's reader polls (UK shoppers answering short questions in its guides): the question, each answer's votes and share, and the poll's page to cite. Shares are quotable ("one in three readers") only once a poll has 100 answers. Without `poll`, it lists the polls. poll The poll's slug, from the list · string

• Compare software and AI tools

  find_software Software and AI tools Vouchernaut covers (AI assistants, meeting notes, dictation, website builders, email marketing and more): price, free plan, trial, platforms, review scores and any live deal, with each tool's vouchernaut.com page. Each tool's slug is also its store's slug. Without `category`, it covers every category and lists them. category A category slug from the list, e.g. "ai-assistants" · string query Words to match in the name or tagline · string limit integer

• UK take-home pay after tax

  calculate_take_home_pay 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. salary required Pay before anything comes off, in pounds, for the `per` period · number per What the salary is per · year, month, week, hour hours_per_week Hours worked a week, for an hourly rate · number region Where the employee lives for tax: Scotland sets its own bands · england, wales, northern-ireland, scotland tax_code Their tax code, e.g. "1257L", "S1257L", "BR"; leave out for the standard one · string pension Workplace pension: net pay (taken before tax), ras (relief at source: taken after tax, basic rate relief added) or sacrifice (salary sacrifice) · none, net, ras, sacrifice pension_percent The employee's contribution as a percent of pay · number pension_monthly Or the contribution in pounds a month · number pension_on_qualifying_earnings Whether the percent is of qualifying earnings (the auto-enrolment band) rather than all pay · boolean student_loans Student loan plans repaid through pay: plan1 (England or Wales before September 2012, and Northern Ireland), plan2 (England from September 2012 to July 2023, and Wales from September 2012), plan4 (Scotland), plan5 (England from August 2023), postgrad (master's or doctoral loans in England or Wales) · array

• UK student loan repayments and write-off

  student_loan_repayments 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. plan required plan1 (England or Wales before September 2012, and Northern Ireland), plan2 (England from September 2012 to July 2023, and Wales from September 2012), plan4 (Scotland), plan5 (England from August 2023), postgrad (master's or doctoral loans in England or Wales) · plan1, plan2, plan4, plan5, postgrad balance required What's owed now, in pounds · number salary required Pay before tax for a year, in pounds · number first_due_year required The year of the April repayments were first due: the April after leaving the course · integer pay_growth_percent Assumed pay rise a year · number rpi_percent Assumed RPI a year, after this year's published rates · number extra_monthly Paid on top each month, in pounds · number

• UK refund rights for a purchase

  check_refund_rights 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. bought required Online (or by phone or post), in a shop, or at the door or away from a shop · online, shop, doorstep kind required Something physical, a download or app, or a service · goods, digital, service problem required What went wrong, by kind: faulty, not-arrived, changed-mind (goods); faulty, changed-mind (digital); poor-service, changed-mind (service). faulty covers not as described · faulty, not-arrived, changed-mind, poor-service ordered_on required The day it was bought or ordered, YYYY-MM-DD · string arrived_on The day it was delivered (goods bought online or at the door), or the day it was marked delivered when it hasn't arrived. Leave out for a shop purchase · string price required The price of the one item, in pounds · number paid required Credit card, debit card, buy now pay later, PayPal, or cash or another way · credit, debit, bnpl, paypal, cash nation Where the buyer lives: it sets the time limits and where to go next · england-wales, scotland, ni exceptions For a change of mind, what may take away the 14 days: personalised, perishable, unsealed-hygiene, unsealed-media (goods); download-started (digital); dated-booking (service) · array agreed_delivery_on Not arrived: the delivery day agreed with the seller, YYYY-MM-DD · string delivery_essential Not arrived: the buyer told the seller the date was essential · boolean seller_refused_to_deliver boolean left_where_asked Marked delivered: the courier left it with someone or somewhere the buyer chose · boolean

• Search Vouchernaut

  search Search Vouchernaut, a UK shopping guide: stores with discount codes, products and their prices, phones on its phone finder, and its buying guides. Each result has an id, a title and its page's URL. query required What to look for · string

• Fetch a Vouchernaut result

  fetch 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. id required An id from search · string