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Price comparison for Microsoft Flight Simulator add-ons: search, deals, per-store prices, history.

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compare_prices Read-only

Every store offer for one add-on, in-stock offers with known net prices first, ordered by net EUR price. Includes the listed price, tax status, known net price, EUR conversion, stock, sale expiry and an outbound link.

slugstring, required

Catalog MCP server | mcptry

Tools (12)

compare_prices

read-only

Argument	Type	Description
slug*	string

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "slug"
  ],
  "properties": {
    "slug": {
      "type": "string"
    }
  }
}

fetch

Retrieve one add-on as a document, by the `id` returned from `search` (the add-on slug). Returns the full description plus every current store price.

read-only

Argument	Type	Description
id*	string

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string"
    }
  }
}

find_aircraft_type

Resolve a plain-language aircraft name ("737 MAX", "Cessna 172", "A320neo") to its ICAO Doc 8643 designator, with how many add-ons we carry for it. Feed the designator to list_addons_for_aircraft.

read-only

Argument	Type	Description
q*	string	Designator, model, family or manufacturer
limit	integer

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string",
      "maxLength": 60,
      "minLength": 2,
      "description": "Designator, model, family or manufacturer"
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1
    }
  }
}

get_addon

Everything the catalog holds on a single add-on: description, developer, declared simulator compatibility, rating, every store offer with its VAT split and sale expiry, the lowest price ever recorded, and the real-world aircraft types and airports it implements.

read-only

Argument	Type	Description
slug*	string	Add-on slug, as it appears in https://fsaircraft.net/addons/{slug}

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "slug"
  ],
  "properties": {
    "slug": {
      "type": "string",
      "description": "Add-on slug, as it appears in https://fsaircraft.net/addons/{slug}"
    }
  }
}

list_addons_for_aircraft

Every add-on implementing one real-world aircraft type, across all studios, cheapest first. The type link is our own classification (from the title and the store metadata), not the store's.

read-only

Argument	Type	Description
sim	string
limit	integer
icao_designator*	string	ICAO Doc 8643 designator, e.g. 'B738', 'A20N', 'C172'

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "icao_designator"
  ],
  "properties": {
    "sim": {
      "enum": [
        "msfs2020",
        "msfs2024"
      ],
      "type": "string"
    },
    "limit": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 1
    },
    "icao_designator": {
      "type": "string",
      "maxLength": 4,
      "minLength": 2,
      "description": "ICAO Doc 8643 designator, e.g. 'B738', 'A20N', 'C172'"
    }
  }
}

list_deals

Add-ons discounted right now, deepest discount first. A discount here means the current price is below the highest price we have ever recorded for that same offer at that same store — never a store-printed list price, so permanent markdowns do not appear.

read-only

Argument	Type	Description
sim	string
limit	integer
category	string
ending_within_days	integer	Only sales with a published end date inside N days

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "sim": {
      "enum": [
        "msfs2020",
        "msfs2024"
      ],
      "type": "string"
    },
    "limit": {
      "type": "integer",
      "default": 20,
      "maximum": 50,
      "minimum": 1
    },
    "category": {
      "type": "string"
    },
    "ending_within_days": {
      "type": "integer",
      "maximum": 60,
      "minimum": 1,
      "description": "Only sales with a published end date inside N days"
    }
  }
}

list_developers

Add-on studios in the catalog, busiest first, optionally filtered by name.

read-only

Argument	Type	Description
q	string	Substring of the developer name
limit	integer

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "q": {
      "type": "string",
      "maxLength": 80,
      "description": "Substring of the developer name"
    },
    "limit": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 1
    }
  }
}

list_sceneries_for_airport

Every add-on scenery we carry for one airport, by ICAO (or IATA) code, cheapest first.

read-only

Argument	Type	Description
sim	string
icao*	string	ICAO code, e.g. 'EGLL', 'KJFK'. IATA also accepted.
limit	integer

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "icao"
  ],
  "properties": {
    "sim": {
      "enum": [
        "msfs2020",
        "msfs2024"
      ],
      "type": "string"
    },
    "icao": {
      "type": "string",
      "maxLength": 4,
      "minLength": 3,
      "description": "ICAO code, e.g. 'EGLL', 'KJFK'. IATA also accepted."
    },
    "limit": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 1
    }
  }
}

list_stores

Every storefront in the catalog, with how many add-ons we track there, how many are discounted right now, and whether its prices include VAT. Use it to answer "which stores do you actually cover" and to get the `store` slug vocabulary for search_addons.

read-only

No arguments.

Input schema (JSON)

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

price_history

Daily lowest known VAT-excluded price in EUR, using current exchange rates, plus min/max/current and whether it is at its lowest ever. Answers "has this ever been cheaper than X?".

read-only

Argument	Type	Description
days	integer
slug*	string

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "slug"
  ],
  "properties": {
    "days": {
      "type": "integer",
      "default": 180,
      "maximum": 365,
      "minimum": 1
    },
    "slug": {
      "type": "string"
    }
  }
}

Search the fsaircraft.net MSFS add-on catalog and return documents in the shape ChatGPT deep-research and company-knowledge connectors expect. `id` is the add-on slug; pass it to `fetch`. Prefer search_addons when filters or prices matter.

read-only

Argument	Type	Description
query*	string

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 200
    }
  }
}

search_addons

Search the fsaircraft.net catalog of payware Microsoft Flight Simulator add-ons (aircraft, scenery, liveries, utilities) across every tracked store. Returns the cheapest live offer for each add-on with its discount and MSFS 2020/2024 compatibility as declared by the selling store.

read-only

Argument	Type	Description
q	string	Free text: title, developer, ICAO code or aircraft type
sim	string	Only add-ons declared compatible with this simulator
limit	integer
store	string	Store slug, e.g. 'simmarket' — see list_stores
on_sale	boolean	Only add-ons currently below their recorded high
category	string	Category slug, e.g. 'aircraft', 'scenery', 'livery', 'utility'
max_price_eur	number	Inclusive ceiling on the known VAT-excluded price, in euros

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "q": {
      "type": "string",
      "maxLength": 120,
      "description": "Free text: title, developer, ICAO code or aircraft type"
    },
    "sim": {
      "enum": [
        "msfs2020",
        "msfs2024"
      ],
      "type": "string",
      "description": "Only add-ons declared compatible with this simulator"
    },
    "limit": {
      "type": "integer",
      "default": 20,
      "maximum": 50,
      "minimum": 1
    },
    "store": {
      "type": "string",
      "description": "Store slug, e.g. 'simmarket' — see list_stores"
    },
    "on_sale": {
      "type": "boolean",
      "description": "Only add-ons currently below their recorded high"
    },
    "category": {
      "type": "string",
      "description": "Category slug, e.g. 'aircraft', 'scenery', 'livery', 'utility'"
    },
    "max_price_eur": {
      "type": "number",
      "maximum": 10000,
      "description": "Inclusive ceiling on the known VAT-excluded price, in euros",
      "exclusiveMinimum": 0
    }
  }
}