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MostExpensiveWatches MCP server

Which MCP servers are MostExpensiveWatches's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-26

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Whose server it is
  • Registry namenet.mostexpensivewatches/mcpverified in the MCP registry

The registry name sits under mostexpensivewatches.net. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-26
  • Stateanswerschecked 2026-10-26
  • Tools10
  • Server calls itselfmostexpensivewatches
  • Server version1.0.0
  • Protocol version2024-11-05

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 123 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: check live inventory of ultra-luxury watches for sale; look up documented auction hammer prices by reference; estimate a watch's value from matched auction comps.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • For "check live inventory of ultra-luxury watches for sale", the likely first call is search_inventory.
  • For "look up documented auction hammer prices by reference", the likely first call is search_auction_comps.
  • For "estimate a watch's value from matched auction comps", the likely first call is search_auction_comps.
  • Parameters are untyped or undescribed in 7 of 10 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 2, the first on 2026-10-26
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • What an agent can do with it3 of 3 use cases
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer277 ms
  • Space in an agent's context≈ 1,060 tokensthe definitions of all its tools (10), which an agent carries on every turn
  • Tool definitionsC · 72 of 100
  • Typed results0 of 10 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 7 of 10
  • Not saying whether it only reads or can destroy: 10 of 10

What an agent can do with it

  • can do · check live inventory of ultra-luxury watches for sale
  • can do · look up documented auction hammer prices by reference
  • can do · estimate a watch's value from matched auction comps

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers10 tools · read 2026-10-26
  • search_inventory

    Search live luxury watch inventory from 9 vetted dealers on MostExpensiveWatches.net. Filter by brand, complication, material, price range or free text. Returns up to 12 listings with brand, reference, price USD, merchant and a live URL.

  • lookup_reference

    Resolve a brand+reference (e.g. 'Patek 5711', 'Royal Oak 15202') to MEW's canonical /reference/<slug> page. Returns an AI-written factual description, current listing stats, the all-time auction record for the reference, and links. Prefer…

  • search_auction_comps

    Search the auction comp database from Phillips, Christie's, Sotheby's, Antiquorum and Bonhams. Audited lots include verification status and available sources; unverified results remain in the rankings with a review note. Filter by brand…

  • list_upcoming_auctions

    List upcoming watch auctions tracked at Phillips, Christie's, Sotheby's, Antiquorum, Bonhams, Aguttes and Monaco Legend. Filter by house. Use this for 'when is the next watch auction', 'what's coming up at Phillips' etc.

  • get_market_estimate

    Combined market view for a brand or specific reference: live asking median/range from inventory + documented auction record + median hammer. Returns a one-line market signal. Use this for 'what is X worth' questions instead of guessing.

  • get_brand_info

    Get factual profile for a watch brand: founding, tier, country, AI-written bio, inventory count and dealers carrying it.

  • search_answers

    Search MEW's AEO answer pages (750 canonical + 6,000 localized). Use for 'what is', 'how much', 'why is' questions about specific references or market topics. Returns short snippets with answer URLs.

  • get_todays_hammer_game

    HAMMER — the daily watch-auction price game. Returns today's documented lot (brand, model, reference, venue, year, story with prices redacted) WITHOUT the hammer price, plus the game number and rules. Use guess_hammer_price to play: 6…

  • guess_hammer_price

    Submit a guess for today's HAMMER game. Returns higher/lower plus a closeness band (green=within 10% — solved; yellow=1.5x; orange=3x; red=worse). The real hammer price and lot record are revealed when solved or after attempt 6. Track…

  • get_site_stats

    Get the live MostExpensiveWatches.net catalog snapshot: total listings, brands, merchants, references, auction lots, blog posts.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "mostexpensivewatches": {
      "type": "http",
      "url": "https://mostexpensivewatches.net/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http mostexpensivewatches https://mostexpensivewatches.net/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mostexpensivewatches.net/mcp as a custom connector in the settings.

OpenAPI spec

44 paths, read 2026-10-26. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.