Price Drop Back

io.github.GoodTurnStudioPublished by GitHub account GoodTurnStudiov1.4.0Updated Nov 10, 2026

Did the price drop after you bought it? Store price-adjustment rules, deadlines and a claim message.

The publisher's own server: drop.media

VerifiedStreamable HTTPWeb executableProductivity & WorkflowFinanceBusiness & Commerce

Overview

AI-generated overview

Remote MCP server that tells an assistant store price-adjustment and price-match rules, whether a price-drop claim is likely, and when to claim.

What you can do
  • Look up a store's price adjustment and price match policy, with links to check prices when an item is named
  • Assess a price-drop claim: likelihood, the amount, and the steps to claim
  • Create a calendar reminder (.ics) for the last day to claim, with alerts before and on the day
  • List every covered store and credit card price protection, optionally filtered by country
When to use it
Useful when someone bought something and the price has since fallen, or wants to know whether a retailer or credit card offers price matching or price protection before or after a purchase.
Requirements
Remote streamable HTTP endpoint; no sign-in, API key or environment variables are declared. Network access to the hosted endpoint is needed.
Before you install
Answers are guidance based on published store policies, not a guarantee of a refund; verify with the store before relying on it. The calendar tool returns a file rather than storing anything, and the README states nothing about the user is stored.

Installation

In SourceWeft

  1. Open Price Drop Back in the dashboard and add it to a workspace.
  2. 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/io.github.GoodTurnStudio%2Fpricedropback/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.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "price-drop-back": {
      "type": "http",
      "url": "https://goodturn-mcp.pages.dev/pricedropback/mcp"
    }
  }
}

README

goodturn-mcp

Remote MCP servers for 25 free, read-only everyday helpers by Good Turn Studio: money, health, jobs, travel, shopping, halal checks, football and scripture reading. One Cloudflare Worker turns each product's public OpenAPI spec into an MCP server, so any assistant that speaks MCP (Claude, ChatGPT, Alexa+, Cursor, VS Code and others) can use them.

  • One server per product: https://goodturn-mcp.pages.dev/<slug>/mcp
  • All products in one: https://goodturn-mcp.pages.dev/all/mcp (tool names start with the product slug)
  • Streamable HTTP, stateless JSON, MCP 2025-11-25 (and 2025-06-18, 2025-03-26), no sign-in
  • Every tool is read-only, with a title and annotations (readOnlyHint: true, destructiveHint: false, idempotentHint: true)
  • Nothing about the user is stored. Privacy: https://goodturn-mcp.pages.dev/privacy

Products

ProductSlugWhat it does
MizanmizanShariah screening of US stocks under four standards, halal alternatives, purification, zakat
Halal or NothalalornotHalal checks for food, ingredients, medicines, stocks, funds and crypto
Fare DealsfaredealsCheap flights from any city, and the cheapest days to fly
Cheapest PricecheapestpriceThe lowest current price for a product, checked live
Spin My DayspinmydayA whole day out in any city, matched to weather, mood and diet
Cancel My SubcancelmysubHow to cancel US and UK subscriptions, and what a card charge is
Lower My BilllowermybillCall scripts and low-cost plans to lower household bills
Price Drop BackpricedropbackStore price-adjustment rules, deadlines and a claim message
Find My MoneyfindmymoneyOfficial unclaimed money searches in the US and UK
Supplement ChecksupplementcheckSupplement labels and doses against official upper limits
Plate PalplatepalCalories and nutrition for foods, chain meals and barcodes
Plan My WorkoutplanmyworkoutWorkout plans and how to do any exercise
Med Bill CheckmedbillcheckUS medical bills against Medicare rates, with dispute letters
Appeal My ClaimappealmyclaimUS health insurance denials, rights, deadlines and appeal letters
Job SpotterjobspotterCurrent US and UK job listings
Sync My CyclesyncmycycleLikely cycle phase today, with food and workout ideas
Wardrobe ConnectwardrobeconnectClothes that match a description or a picture
Form GuideformguideFootball form, fixtures, results and tables
Books Like ThisbookslikethisBooks like one you enjoyed, and screen adaptations
Talmud ScrollertalmudDaily Talmud with Daf Yomi, and tractates in English
Scroll the GurbanigurbaniDaily Gurbani with English, any Ang or shabad
Gita ScrollergitaDaily Bhagavad Gita verses with English
Scroll the LoreloreGreek and Norse myth, Homer, Hesiod and the Poetic Edda
Stoic ScrollerstoicsMarcus Aurelius, Epictetus and Seneca
Bible SwipebibleDaily Bible readings and any passage

How it works

  • build.py reads each product's live openapi.json and writes products.js: one tool per GET operation, named from its operationId, with inputs from its parameters. Descriptions are tidied into plain tool descriptions.
  • worker.mjs is the MCP server: initialize, tools/list and tools/call, which calls the product's own API and returns its answer. Answers with a say field carry a ready-made summary.
  • servers.json lists every server for the official MCP Registry (as io.github.GoodTurnStudio/<slug>). The Publish to the MCP Registry workflow logs in with GitHub OIDC and runs publish.py; publish.ps1 does the same from Windows.

Build and test

npm installnpm run build          # python3 build.py, then bundle to deploy/_worker.jsnpm test               # every product through the worker, against the live APIsnpm run test:live      # every tool through the deployed servers with the MCP SDK client

Deploy deploy/ as a Cloudflare Pages project in advanced mode (_worker.js).

Licence

MIT for this code. Each product's API, data and answers belong to that product and are served under its own terms, linked from its page at https://goodturn-mcp.pages.dev/<slug>.

Source: README.md at commit 7a0f5b3

Tools

4

get_store_policy

A store's price adjustment and price match policy

A store's price adjustment and price match policy. For requests like "does Target do price matching?", "does John Lewis refund if the price drops?", "Currys price promise", "what's Best Buy's price adjustment policy?", "will Costco refund the difference?". With an item name it adds links to check today's price.

Parametersitemstorerequiredcountry

check_price_drop_claim

Can I get the difference back?

Can I get the difference back? For requests like "I bought a TV at Best Buy 9 days ago for $499 and it's $449 now, can I get the difference?". Says whether a claim is likely (likely, likely_if_member, unlikely, check or no_drop), the amount, and the steps. With an item name it adds a Cheapest Price link and Amazon and eBay links to check today's price. Likely claims also get claim_message, ready to paste into the store's chat or email. policy.refund_paid_as flags stores that pay store credit (Newegg)

Parametersnowitempaidstorerequiredcountrypurchase_datedays_since_purchase

get_claim_reminder

Calendar reminder for the last day to claim a price drop

Calendar reminder for the last day to claim a price drop. Returns a calendar file (.ics) with an all-day event on the store's last claim day, how to claim and the policy link, with alerts 3 days before and on the day. Nothing is stored. check_price_drop_claim gives this link as add_to_calendar when purchase_date is given and a claim is likely.

Parametersitemstorerequiredmembercountrypurchase_daterequired

list_stores

Every store covered, plus card price protection

Every store covered, plus card price protection. For requests like "which stores give you money back if the price drops?" or "does my credit card have price protection?". With country=GB, lists the UK policies.

Parameterscountry

Version history

1
  1. v1.4.0LatestSep 29, 2026

Score

100% 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
  • License10 pts

Other Drop integrations