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MADDOG MCP server

Which MCP servers are MADDOG'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 namefinance.maddog/mcpverified in the MCP registry

The registry name sits under maddog.finance. 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
  • Tools4
  • Server calls itselfmaddog
  • Server version4.7.1
  • Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 84 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.

Once connected

  • For "get five probabilities for how an S&P 500 futures session could finish", the likely first call is price_action_read.

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: 11, the first on 2026-10-26
  • INITE MCP score81 of 100answers 100 · definitions 80 · context 100 · use 0 · connects 100
  • Answered100% of days11 of 11 daily checks
  • Median first answer110 ms
  • Space in an agent's context≈ 1,418 tokensthe definitions of all its tools (5), which an agent carries on every turn
  • Tool definitionsB · 80 of 100
  • Typed results0 of 5 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 1 of 5
  • Not saying whether it only reads or can destroy: 5 of 5

What an agent can do with it

  • can do · get five probabilities for how an S&P 500 futures session could finish
  • not sure · receive a daily email read for up to 10 tickers
  • not sure · ask an AI assistant to read price action on any ticker

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 offers4 tools · read 2026-10-26
  • price_action_read

    Read one instrument's current session the way a price action trader would, with measured statistics instead of opinions: a five-class day-type probability distribution (66% top-1 accuracy over a complete US day session against a 37%…

  • close_curve

    The full probability curve of where today's US regular session closes: for any set of price levels, the probability that the session close prints above each one. Distances are measured in units of today's own volatility (ATR of the first…

  • get_scoreboard

    The standing public record of this service's own calls — free, no key. Every US trading day at 11:00 ET the day-session read for ES=F, NQ=F and QQQ is snapshotted verbatim; after the close each row is scored on whether a new session high…

  • request_free_key

    Request a free evaluation key (qd_...): no card, no account — the key is emailed to the address given, never returned in this response. It unlocks 10 successful calls per UTC day. Ask the human for their email address first and send…

How to connect

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

{
  "mcpServers": {
    "maddog": {
      "type": "http",
      "url": "https://api.maddog.finance/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http maddog https://api.maddog.finance/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://api.maddog.finance/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.