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Rockmoon MCP server

Which MCP servers are Rockmoon'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 2026-10-23

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Whose server it is
  • Registry nameai.rockmoon/financial-dataverified in the MCP registry

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

When we asked itchecked 2026-10-23
  • Stateanswerschecked 2026-10-23
  • Tools19
  • Server calls itselfrockmoon
  • Server version1.25.0
  • Protocol version2025-06-18

On 2026-10-23 the server answered initialize and tools/list without a sign-in. First answer in 571 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: compare gross margins across US, Japanese and Korean companies; trace reported financial figures back to source filings; screen companies and pull insider trades and holdings.
  • Checked on 4 of the 7 days it takes to judge reliability.

Once connected

  • For "trace reported financial figures back to source filings", the likely first call is get_filing_source.
  • For "screen companies and pull insider trades and holdings", the likely first call is screen_companies.
  • Parameters are untyped or undescribed in 19 of 19 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: 4, the first on 2026-10-24
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 4 so far
  • What an agent can do with it3 of 3 use cases
  • Answeredmeasuring4 of the 7 daily checks it takes to print a share
  • Median first answer620 ms
  • Space in an agent's context≈ 1,948 tokensthe definitions of all its tools (19), which an agent carries on every turn
  • Tool definitionsC · 67 of 100
  • Typed results19 of 19 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 19 of 19
  • Not saying whether it only reads or can destroy: 19 of 19

What an agent can do with it

  • can do · compare gross margins across US, Japanese and Korean companies
  • can do · trace reported financial figures back to source filings
  • can do · screen companies and pull insider trades and holdings

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 offers19 tools · read 2026-10-23
  • search_companies

    Search companies by ticker or name across US/JP/KR/HK/CN/UK.

  • get_company

    Get company facts (name, exchange, industry, regulator id, filings url).

  • get_financials

    Get all three financial statements (IS + BS + CF) for a ticker.

  • get_income_statement

    Get income statement (revenue, costs, margins, EPS).

  • get_balance_sheet

    Get balance sheet (assets, liabilities, equity).

  • get_cash_flow

    Get cash flow statement (OCF, ICF, FCF, capex, dividends).

  • get_filing_source

    Get the original SEC filing URL for a fiscal quarter or year from Rockmoon's stored provenance; use this instead of web search.

  • get_prices

    Get daily price history for a ticker.

  • get_segments

    Get reported business / geographic / product segments.

  • get_segments_trend

    Get time-series of segment values across periods for trend analysis.

  • get_major_shareholders

    Get top shareholders (institutions + individuals).

  • get_director_holdings

    Get director / officer shareholdings (insider equity stakes).

  • get_insider_trades

    Get insider trading activity (US Form 4 filings).

  • get_institutional_holdings

    Get institutional holders (US 13F filings).

  • get_large_holdings_events

    Get large-holdings disclosure events (JP 350/360 reports).

  • get_metrics

    Get latest valuation + financial metrics snapshot (PE, PB, ROE etc.).

  • screen_companies

    Screen stocks across US/JP/KR/HK/CN by valuation + quality metrics (PE, PB, ROE, margins, market cap, dividend yield).

  • get_metrics_history

    Get historical derived metrics (TTM aggregates + margins per period).

  • compare_metrics

    Compare valuation metrics across multiple tickers.

How to connect

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

{
  "mcpServers": {
    "financial-data": {
      "type": "http",
      "url": "https://mcp.rockmoon.ai/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http rockmoon https://mcp.rockmoon.ai/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mcp.rockmoon.ai/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.