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索引已观测

Thrifle

US return policies, price-match rules, discounts, deals and Amazon price verdicts. Read-only.

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质量与安全性

A
描述质量
96%
模式完整度
85%
命名质量
97%
投毒风险
100%
权限匹配度
100%
协议合规性
100%

发现（2）

  • LOWTool 'compare_return_policies' description lacks action verb在 compare_return_policies 中
  • LOWTool 'about_thrifle' description lacks action verb在 about_thrifle 中

基于对工具定义和协议合规性的自动分析。

上下文开销

~4,694token 数（工具定义）
~1015 B典型响应大小
对注意力有显著影响（占 128k 上下文窗口的 3.67%）

这是每次将服务器的工具加载到模型上下文窗口时所消耗的大致 token 数。数值越高，可用于其他任务的注意力就越少。

安装

一键安装

将以下内容添加到你的 `claude_desktop_config.json` 文件中：

{
  "mcpServers": {
    "mcp": {
      "url": "https://api.thrifle.com/api/mcp"
    }
  }
}

远程端点

https://api.thrifle.com/api/mcpstreamable-http

它能做什么

工具清单

工具（24）

🟢 只读🟡 写入🔴 删除⚪ 未知
🟢get_return_policy(merchant, product)

Verified return policy for a US retailer: return window, free returns, restocking fee, holiday extension, non-returnable items, an A+–D− grade, how it compares with its category, and the retailer's own policy URL. Optionally pass what the shopper bought to surface a product-specific exception (e.g. electronics at Costco). Call this for any 'what is X's return policy' question.

输入模式

{
  "type": "object",
  "properties": {
    "merchant": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug, e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    },
    "product": {
      "type": "string",
      "maxLength": 200,
      "description": "Optional: the product being returned, e.g. 'MacBook Air' or 'gift card', to check for a category exception"
    }
  },
  "required": [
    "merchant"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢compare_return_policies(merchant_a, merchant_b)

Side-by-side comparison of two US retailers' return policies with grades, per-axis winners (window, free returns, restocking fee, holiday extension) and an overall winner. Use for 'is it easier to return to X or Y' questions.

输入模式

{
  "type": "object",
  "properties": {
    "merchant_a": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug — first retailer, e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    },
    "merchant_b": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug — second retailer, e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    }
  },
  "required": [
    "merchant_a",
    "merchant_b"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢search_return_policies(query, category, limit)

Find retailers in Thrifle's return-policy database by name fragment and/or category (e.g. 'Fashion', 'Electronics', 'Home'). Returns slim rows with the return window and a link. With no arguments it returns the category list and total count. Use it when get_return_policy says a retailer was not found, or to list retailers in a category.

输入模式

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 80,
      "description": "Name fragment, e.g. 'best' matches Best Buy"
    },
    "category": {
      "type": "string",
      "maxLength": 60,
      "description": "Category name as shown on thrifle.com/return-policy"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 25,
      "description": "Max results (default 10, max 25)"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_price_match_policy(merchant)

Whether a US retailer matches competitors' prices (which competitors, proof required, exclusions, how to claim) and whether it offers a post-purchase price adjustment (window in days). Call for 'does X price match' or 'will X refund the difference if the price drops' questions.

输入模式

{
  "type": "object",
  "properties": {
    "merchant": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug, e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    }
  },
  "required": [
    "merchant"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢who_will_price_match(merchant, category)

Reverse lookup: the US retailers whose price-match policy explicitly names the given store as an accepted competitor. Optionally filter by the product category being bought so only stores that plausibly stock it are listed. Use for 'who will match Amazon's price on this' questions.

输入模式

{
  "type": "object",
  "properties": {
    "merchant": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug — the store whose price you found, e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    },
    "category": {
      "type": "string",
      "maxLength": 60,
      "description": "Optional deal category, e.g. 'Tech & Electronics', 'Home & Furniture', 'Toys & Hobbies'"
    }
  },
  "required": [
    "merchant"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_merchant_discounts(merchant)

Verified military (active duty, veterans, reserve) and student discount programmes for a US retailer: value, eligibility, verification method (e.g. ID.me, SheerID), online vs in-store, stackability, exclusions, whether it is running right now, and the source URL. Call for 'does X have a military/student discount' questions.

输入模式

{
  "type": "object",
  "properties": {
    "merchant": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug, e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    }
  },
  "required": [
    "merchant"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢search_discounts(type, category, query, limit)

Browse Thrifle's discount database: filter by programme type (military, student, or both), retail category, and/or a name fragment. Returns slim rows with the discount value and a link per retailer.

输入模式

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "enum": [
        "military",
        "student",
        "both"
      ],
      "description": "Only retailers with this programme"
    },
    "category": {
      "type": "string",
      "maxLength": 60,
      "description": "Retail category, e.g. 'Apparel', 'Electronics'"
    },
    "query": {
      "type": "string",
      "maxLength": 80,
      "description": "Name fragment, e.g. 'nike'"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "description": "Max results (default 15, max 50)"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_cancellation_guide(merchant)

Step-by-step guide to cancelling a US subscription or membership: available channels (online, app, phone, in person), notice period, fees, refund after cancelling, retention tactics to expect, and an ease-of-cancellation grade. Coverage is still small; the response lists what is available when the merchant is not found.

输入模式

{
  "type": "object",
  "properties": {
    "merchant": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug — the service, e.g. 'Planet Fitness', e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    }
  },
  "required": [
    "merchant"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_birthday_freebie(merchant)

What a US restaurant or retailer gives away for your birthday, whether it is actually free or needs a purchase or prior spend, how to sign up and how far ahead, the validity window, ID requirements, and known gotchas. Call for 'what does X give you on your birthday' questions.

输入模式

{
  "type": "object",
  "properties": {
    "merchant": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug — brand, e.g. 'Starbucks', 'Sephora', e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    }
  },
  "required": [
    "merchant"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢search_birthday_freebies(query, category, actually_free, kids, no_signup, ...)

Browse verified birthday offers from US brands. Filters: actually_free (no purchase and no prior spend required), kids (child-eligible), no_signup, category (e.g. 'Restaurant', 'Beauty'), name fragment. Returns slim rows; use get_birthday_freebie for the full terms of one brand.

输入模式

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 80
    },
    "category": {
      "type": "string",
      "maxLength": 60
    },
    "actually_free": {
      "type": "boolean",
      "description": "Only offers with no purchase or prior-spend requirement"
    },
    "kids": {
      "type": "boolean"
    },
    "no_signup": {
      "type": "boolean"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "description": "Max results (default 15, max 50)"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢search_deals(query, sort, include_expired, limit)

Search Thrifle's curated US deals by product, brand or keyword. Returns live deals with price, list price, discount %, merchant, coupon code when there is one, the thrifle.com deal page, and a buy link. Expired deals are excluded unless include_expired is set. Use for 'is there a deal on X' or 'best price on X right now' questions.

输入模式

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "minLength": 2,
      "maxLength": 120,
      "description": "Product, brand or keyword, e.g. 'AirPods Pro', 'Dyson', 'robot vacuum'"
    },
    "sort": {
      "type": "string",
      "enum": [
        "newest",
        "popular"
      ],
      "description": "Default newest"
    },
    "include_expired": {
      "type": "boolean"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 20,
      "description": "Max results (default 8, max 20)"
    }
  },
  "required": [
    "query"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_deal(deal)

Everything Thrifle knows about one deal, by its thrifle.com URL or slug: price and list price, merchant, coupon, why it's great, the editorial verdict, the price-history verdict for Amazon items, FAQ, and the buy link. Use after search_deals when the shopper wants detail on one item.

输入模式

{
  "type": "object",
  "properties": {
    "deal": {
      "type": "string",
      "minLength": 3,
      "maxLength": 300,
      "description": "thrifle.com deal URL or the slug at the end of it"
    }
  },
  "required": [
    "deal"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_deal_of_the_day

Thrifle's editor-picked deal of the day with price, merchant and buy link. Cheap to call; returns found:false when none is set.

输入模式

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_store_deals(merchant, limit)

A retailer's store page on Thrifle: how many live deals it has, the most recent ones with prices and buy links, and its military/student discount summary when known. Use for 'what deals does Costco have right now' questions.

输入模式

{
  "type": "object",
  "properties": {
    "merchant": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug, e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 8,
      "description": "Max results (default 8, max 8)"
    }
  },
  "required": [
    "merchant"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢predict_amazon_price(asin_or_url)

Retired in September 2026. Thrifle no longer provides price information for Amazon products; this tool always returns found:false with retired:true. Kept only so existing integrations do not break.

输入模式

{
  "type": "object",
  "properties": {
    "asin_or_url": {
      "type": "string",
      "minLength": 5,
      "maxLength": 500,
      "description": "10-character ASIN (e.g. B0CHX3QBCH) or any Amazon product URL"
    }
  },
  "required": [
    "asin_or_url"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢search_blog(query, section, limit)

Find Thrifle articles by keyword: original data studies (e.g. what actually dropped on Black Friday, Prime Day fact-checks), buying guides, and the Money section's credit and BNPL explainers. Returns title, one-line summary, date, author and URL. Use get_blog_post to read one.

输入模式

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "minLength": 2,
      "maxLength": 120
    },
    "section": {
      "type": "string",
      "enum": [
        "all",
        "shopping",
        "money"
      ],
      "description": "Default all"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 20,
      "description": "Max results (default 8, max 20)"
    }
  },
  "required": [
    "query"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_blog_post(post)

The full text of one Thrifle article by URL or slug (HTML stripped, long posts truncated at ~20,000 characters), plus its FAQ, author, date and URL for citation.

输入模式

{
  "type": "object",
  "properties": {
    "post": {
      "type": "string",
      "minLength": 3,
      "maxLength": 300,
      "description": "thrifle.com article URL or its slug"
    }
  },
  "required": [
    "post"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢search_credit_cards(query, issuer, merchant, store_cards_only, deferred_interest_only, ...)

Browse Thrifle's US credit-card database (store and co-branded cards first): filter by issuer, retailer, store cards only, or cards that use deferred-interest promotional financing. Rows carry purchase APR range, annual fee, financing type, data confidence and the verification date. Numbers come from issuer pricing pages, never roundups.

输入模式

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 80,
      "description": "Name fragment matched against card name, issuer or partner retailer"
    },
    "issuer": {
      "type": "string",
      "maxLength": 80,
      "description": "Exact issuer name, e.g. 'Synchrony Bank', 'Citi Retail Services'"
    },
    "merchant": {
      "type": "string",
      "maxLength": 80,
      "description": "Partner retailer, e.g. 'Amazon', 'Lowe's'"
    },
    "store_cards_only": {
      "type": "boolean"
    },
    "deferred_interest_only": {
      "type": "boolean",
      "description": "Only cards whose promo financing is deferred interest (retroactive interest if not paid in full)"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 60,
      "description": "Max results (default 20, max 60)"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_credit_card(card_key)

Full record for one card by its card_key (from search_credit_cards): APR tiers, intro and penalty APRs, fees, promotional financing terms with the issuer's own fine-print quote, rewards, perks, welcome offer, and provenance (pricing-terms URL, verification date, confidence). Store cards link to the partner retailer's return policy.

输入模式

{
  "type": "object",
  "properties": {
    "card_key": {
      "type": "string",
      "minLength": 2,
      "maxLength": 120,
      "description": "card_key from search_credit_cards, e.g. 'amazon-store-card'"
    }
  },
  "required": [
    "card_key"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_store_credit_cards(merchant)

The store and co-branded credit cards a US retailer offers, with APR, annual fee, whether promotional financing is deferred interest, and links to each card's full terms, the retailer's store-card page and its return policy. Call for 'is the X store card worth it' or 'does X card have deferred interest' questions.

输入模式

{
  "type": "object",
  "properties": {
    "merchant": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Retailer name or thrifle.com slug — e.g. 'Lowe's', 'Amazon', 'Best Buy', e.g. \"Costco\", \"best-buy\", \"Nordstrom\""
    }
  },
  "required": [
    "merchant"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_money_monitor

Current US macro numbers from Thrifle's Money Monitor: GDP growth, personal saving rate, average credit-card APR, revolving and total consumer credit, the federal debt, and mortgage / fed funds / 10-year Treasury rates, each with the previous reading and year-ago value. Sourced from FRED and the U.S. Treasury; refreshed daily.

输入模式

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_price_pulse

Latest US Consumer Price Index by spending category (headline, food, energy, shelter, apparel, etc.) with month-over-month and year-over-year change, plus average gas prices by grade with week-ago and year-ago comparisons. Sourced from BLS and EIA.

输入模式

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢check_product_recalls(product, brand)

Matches a product name (and optional brand) against recent U.S. CPSC recalls using a strict matcher tuned for zero false positives. Returns matching recalls with hazard and remedy, or an empty list. Useful before recommending a product.

输入模式

{
  "type": "object",
  "properties": {
    "product": {
      "type": "string",
      "minLength": 3,
      "maxLength": 200,
      "description": "Product title as sold, e.g. 'Peloton Tread+ treadmill'"
    },
    "brand": {
      "type": "string",
      "maxLength": 80
    }
  },
  "required": [
    "product"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢about_thrifle

What Thrifle is, what each database covers and how big it is, how to cite it, and which tool answers which kind of question.

输入模式

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

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证据

最近观测

已验证未记录版本24 个工具
已验证未记录版本24 个工具