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Deal MCP server

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

read 2026-10-20

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Whose server it is
  • Registry namely.deal/market-scanverified in the MCP registry

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

When we asked itchecked 2026-10-20
  • Stateanswerschecked 2026-10-20
  • Tools4
  • Server calls itselfsentientdata-market-scan
  • Server version2.0.0
  • Protocol version2025-06-18

On 2026-10-20 the server answered initialize and tools/list without a sign-in. First answer in 84 ms.

Should an agent connect itSkip it
  • Answered on only 4 of 7 daily checks.
  • Whether its tools do the product's job has not been judged yet.

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: 7, the first on 2026-10-20
  • INITE MCP score73 of 100answers 57 · definitions 83 · context 100
  • Answered57% of days4 of 7 daily checks
  • Median first answer104 ms
  • Space in an agent's context≈ 636 tokensthe definitions of all its tools (4), which an agent carries on every turn
  • Tool definitionsB · 83 of 100
  • Typed results0 of 4 toolsdeclared outputSchema: results come typed, read once
  • Not saying whether it only reads or can destroy: 4 of 4

What an agent can do with it

  • not sure · Spot eBay buy-it-now listings priced under the market median
  • not sure · Compare live eBay asking prices against typical price ranges
  • not sure · Watch auctions that are ending below market value

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 (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). 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 offers4 tools · read 2026-10-20
  • scan_deals

    Scan live eBay listings for a product and return the ones priced furthest under the current market median. AUCTION mode (default) finds ending-soon auctions sitting under market; FIXED_PRICE mode finds mispriced Buy It Now listings that…

  • price_check

    Live market price distribution for a product from current eBay Buy It Now listings: median, p25, p75, min, max, and sample size. Use to answer 'what is this worth right now'.

  • flip_margin

    Estimate resale margin for buying an item at a given price and reselling at the current eBay market median. Accounts for marketplace fees and optional shipping cost. Returns estimated profit and ROI. Estimates only, not financial advice.

  • hot_list

    The current pre-scored steal list across tracked lanes (watches, sneakers, bags, jewelry, beauty, cards, coins, guitars, lego, golf, autoparts, tools): live auctions at least 45% under market plus mispriced Buy It Now listings, refreshed…

How to connect

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

{
  "mcpServers": {
    "market-scan": {
      "type": "http",
      "url": "https://deal.ly/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http deal https://deal.ly/mcp

Add to CursorAdd to VS Code

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

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.