net.fsaircraft/catalog

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

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

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "catalog": {
      "url": "https://mcp.fsaircraft.net/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (12)

• search_addons read-only

  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.

  Parameters:

  • 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

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_addon read-only

  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.

  Parameters:

  • slug (required) — string — Add-on slug, as it appears in https://fsaircraft.net/addons/{slug}

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_deals read-only

  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.

  Parameters:

  • sim — string
  • limit — integer
  • category — string
  • ending_within_days — integer — Only sales with a published end date inside N days

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• 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.

  Parameters:

  • slug (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• price_history read-only

  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?".

  Parameters:

  • slug (required) — string
  • days — integer

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_stores read-only

  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.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_developers read-only

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

  Parameters:

  • q — string — Substring of the developer name
  • limit — integer

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• find_aircraft_type read-only

  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.

  Parameters:

  • q (required) — string — Designator, model, family or manufacturer
  • limit — integer

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_addons_for_aircraft read-only

  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.

  Parameters:

  • icao_designator (required) — string — ICAO Doc 8643 designator, e.g. 'B738', 'A20N', 'C172'
  • sim — string
  • limit — integer

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_sceneries_for_airport read-only

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

  Parameters:

  • icao (required) — string — ICAO code, e.g. 'EGLL', 'KJFK'. IATA also accepted.
  • sim — string
  • limit — integer

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• search read-only

  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.

  Parameters:

  • query (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• fetch read-only

  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.

  Parameters:

  • id (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

Publisher website

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.