MCP MeasureMCP Measure

index observed

NOSTOS

Retro games and vintage apparel in Duluth, GA. Live catalog, prices, trade-in offers, policies.

Should I use this

Quality & Safety

A
Description quality
92%
Schema completeness
68%
Naming quality
99%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Findings (3)

  • LOWTool 'get_item' description lacks action verbin get_item
  • LOWTool 'get_credit_policy' description lacks action verbin get_credit_policy
  • LOWTool 'lookup_market_price' description lacks action verbin lookup_market_price

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~2,062Tokens (tool definitions)
~918 BTypical response size
Moderate attention impact (1.61% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "nostos": {
      "url": "https://mcp.nostos.market/mcp"
    }
  }
}

Remote endpoints

https://mcp.nostos.market/mcpstreamable-http
https://mcp.nostos.market/ssesse

What it can do

Tool inventory

Tools (14)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢search_inventory(query, platform, department, region, condition, ...)

Search the live NOSTOS catalog of retro games, consoles, and vintage apparel. Free-text query plus platform, department, region, condition, and price filters. Returns online-buyable items by default. Every item is unique and individually graded.

Input Schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Free-text match across name, description, genre, and platform. All words must match."
    },
    "platform": {
      "type": "string",
      "description": "Filter by platform (case-insensitive substring), e.g. 'Saturn', 'N64', 'Game Boy'."
    },
    "department": {
      "type": "string",
      "description": "Filter by department (substring), e.g. 'VG - Software', 'Apparel'."
    },
    "region": {
      "type": "string",
      "description": "Filter by exact region code, e.g. 'JP', 'US', 'PAL'."
    },
    "condition": {
      "type": "string",
      "description": "Filter by exact condition, e.g. 'Loose', 'CIB', 'New'."
    },
    "minPrice": {
      "type": "number",
      "minimum": 0,
      "description": "Minimum price in USD."
    },
    "maxPrice": {
      "type": "number",
      "minimum": 0,
      "description": "Maximum price in USD."
    },
    "includeSold": {
      "type": "boolean",
      "description": "Include sold and in-store-only items. Default false (online-buyable only)."
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "description": "Max results to return. Default 20."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_item(sku)

Full details for one SKU: description, condition notes, price, region, image, and a direct product URL, plus real-time availability.

Input Schema

{
  "type": "object",
  "properties": {
    "sku": {
      "type": "string",
      "description": "The product SKU, e.g. 'NOST-VGS-0075'."
    }
  },
  "required": [
    "sku"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢check_availability(skus)

Real-time status (available, reserved, sold, or invalid) for up to 50 SKUs at once. The live source of truth; the catalog can lag a recent sale.

Input Schema

{
  "type": "object",
  "properties": {
    "skus": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "minItems": 1,
      "maxItems": 50,
      "description": "SKUs to check, up to 50, e.g. ['NOST-VGS-0075','NOST-VGS-0076']."
    }
  },
  "required": [
    "skus"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢list_platforms

List the console platforms currently in stock, each with a count of available items.

Input Schema

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

List the store departments currently in stock (e.g. 'VG - Software', 'CLTH - Vintage Apparel'), each with a count of available items.

Input Schema

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

List the most recently added in-stock items, newest first. The answer to what is new at NOSTOS.

Input Schema

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "description": "Max items to return. Default 10."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_store_info

NOSTOS store information: address, hours, contact, mission, tagline, categories, area served, social links, and current online and storefront status.

Input Schema

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

The NOSTOS condition grading vocabulary and the criteria for each grade, with region-code meanings. Optionally filter to one department.

Input Schema

{
  "type": "object",
  "properties": {
    "department": {
      "type": "string",
      "description": "Optional department filter, e.g. 'VG - Software', 'CLTH - Vintage Apparel'. Omit for the full rubric."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_buying_policy

What NOSTOS buys and declines, how cash and store-credit offers are calculated, bounty premiums, basket caps, the free shipping label threshold, and the trade-in process.

Input Schema

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

The NOSTOS return policy: 14-day window, eligible reasons, free return shipping on valid claims, refund timing, and the 110% store-credit option.

Input Schema

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

How NOSTOS store credit works: the 15% uplift over cash, the in-store drop-off bonus, the return bonus, and redemption.

Input Schema

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_shipping_estimate(destination_country, item_count)

The NOSTOS shipping policy for a destination country (US, Canada, or not-yet-active international), including the free prepaid trade-in label threshold. Policy, not a live carrier rate.

Input Schema

{
  "type": "object",
  "properties": {
    "destination_country": {
      "type": "string",
      "minLength": 2,
      "maxLength": 2,
      "description": "ISO-3166-1 alpha-2 destination country code, e.g. 'US', 'CA'."
    },
    "item_count": {
      "type": "integer",
      "minimum": 1,
      "maximum": 20,
      "description": "Number of items. Default 1."
    }
  },
  "required": [
    "destination_country"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢lookup_market_price(name, platform, condition)

Estimated market value (loose, CIB, and new) for a game or console from current PriceCharting guide data, plus the NOSTOS cash and store-credit buy offers.

Input Schema

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "minLength": 2,
      "description": "Title to look up, e.g. 'Mario Kart 64'."
    },
    "platform": {
      "type": "string",
      "description": "Platform hint to disambiguate, e.g. 'N64', 'Saturn'."
    },
    "condition": {
      "type": "string",
      "enum": [
        "loose",
        "cib",
        "new"
      ],
      "description": "Optional condition to focus the result on."
    }
  },
  "required": [
    "name"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_trade_in_offer_estimate(items)

Cash and store-credit totals for a basket of items to sell, with free-shipping eligibility and whether the basket routes to a personal review. Persists nothing. Provide each item's buyPrice from lookup_market_price.

Input Schema

{
  "type": "object",
  "properties": {
    "items": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "id": {
            "type": "string",
            "description": "Optional client id for the item."
          },
          "name": {
            "type": "string",
            "description": "Item title."
          },
          "platform": {
            "type": "string",
            "description": "Platform, e.g. 'Nintendo 64'."
          },
          "condKey": {
            "type": "string",
            "enum": [
              "loose",
              "cib",
              "new",
              "manual"
            ],
            "description": "Condition key."
          },
          "condLabel": {
            "type": "string",
            "description": "Human condition label."
          },
          "buyPrice": {
            "type": "number",
            "minimum": 0,
            "description": "Per-item NOSTOS cash offer in USD, from lookup_market_price."
          }
        },
        "required": [
          "name",
          "platform",
          "condKey",
          "buyPrice"
        ],
        "additionalProperties": false
      },
      "minItems": 1,
      "maxItems": 100,
      "description": "Basket of items to sell. Use lookup_market_price to get each item's buyPrice first."
    }
  },
  "required": [
    "items"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Recommended Prompts

search_research
Search for information about [topic] using NOSTOS
Expected tools: search_inventory
find_specific
Find [specific item] using NOSTOS
Expected tools: search_inventory
retrieve_data
Get details about [item] from NOSTOS
Expected tools: get_item
fetch_info
Fetch [information type] using NOSTOS
Expected tools: get_item
list_items
List all [items] available in NOSTOS
Expected tools: list_platforms

Community

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Evidence

Recent observations

verifiedversion not recorded14 tools
verifiedversion not recorded14 tools
verifiedversion not recorded14 tools
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verifiedversion not recorded14 tools