MCPサーバー

Price Drop Back

io.github.GoodTurnStudio/pricedropback
コマース・小売 公開・接続可能 MCP 2026-07-28

このMCPでできること

Checks store price-adjustment and price-match policies, estimates price-drop claims, and generates claim reminders and messages.

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)
読み取り専用 外部アクセスあり 冪等
入力スキーマ
{'type': 'object', 'required': ['store'], 'properties': {'now': {'type': 'number', 'description': "Today's price, 0 to 100000 (US dollars, or pounds for UK stores)."}, 'item': {'type': 'string', 'description': "Optional item name, up to 100 characters, to link today's price on Cheapest Price, Amazon and eBay."}, 'paid': {'type': 'number', 'description': 'What you paid, 0 to 100000 (US dollars, or pounds for UK stores).'}, 'store': {'type': 'string', 'description': 'Store name, up to 60 characters.'}, 'country': {'type': 'string', 'description': 'Two-letter country code. GB (or UK) gives the UK policy where the store has one (Apple, Amazon, IKEA) and UK rules; it also picks the price links (US, GB and IE get local Amazon and eBay links). Default from the request.'}, 'purchase_date': {'type': 'string', 'format': 'date', 'description': "The date you bought it, YYYY-MM-DD, instead of days_since_purchase. Adds deadlines: the last day to claim with the store (and in a members' longer window) and Capital One card protection."}, 'days_since_purchase': {'type': 'integer', 'description': 'Days since you bought it (or since delivery), 0 to 400. Give this or purchase_date.'}}, 'additionalProperties': False}
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.
読み取り専用 外部アクセスあり 冪等
入力スキーマ
{'type': 'object', 'required': ['store', 'purchase_date'], 'properties': {'item': {'type': 'string', 'description': 'Optional item name for the event title, up to 100 characters.'}, 'store': {'type': 'string', 'description': 'Store name.'}, 'member': {'type': 'boolean', 'description': "Set to true to use the longer members' window where the store has one (for example My Best Buy Plus or Total)."}, 'country': {'type': 'string', 'description': 'Two-letter country code. GB (or UK) uses the UK policy where the store has one. Default from the request.'}, 'purchase_date': {'type': 'string', 'format': 'date', 'description': 'The date you bought it, YYYY-MM-DD.'}}, 'additionalProperties': False}
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.
読み取り専用 外部アクセスあり 冪等
入力スキーマ
{'type': 'object', 'required': ['store'], 'properties': {'item': {'type': 'string', 'description': "Optional item name, up to 100 characters, to link today's prices for it."}, 'store': {'type': 'string', 'description': 'Store name in everyday words, up to 60 characters.'}, 'country': {'type': 'string', 'description': 'Two-letter country code. GB (or UK) gives the UK policy where the store has one (Apple, Amazon, IKEA) and UK rules; it also picks the price links (US, GB and IE get local Amazon and eBay links). Default from the request.'}}, 'additionalProperties': False}
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.
読み取り専用 外部アクセスあり 冪等
入力スキーマ
{'type': 'object', 'required': [], 'properties': {'country': {'type': 'string', 'description': 'Two-letter country code. GB (or UK) lists only stores with a UK policy. Default from the request.'}}, 'additionalProperties': False}
変更
list_stores
2026年10月1日2:40
変更
get_claim_reminder
2026年10月1日2:40
変更
check_price_drop_claim
2026年10月1日2:40
変更
get_store_policy
2026年10月1日2:40
追加
list_stores
2026年9月29日2:40
追加
get_claim_reminder
2026年9月29日2:40
追加
check_price_drop_claim
2026年9月29日2:40
追加
get_store_policy
2026年9月29日2:40