Rockmoon Financial Data

Name: Rockmoon Financial Data
Author: 0xYx

@0xYx

About Rockmoon Financial Data

Cross-market (US/JP/KR) financial data over MCP — financials, segments, ownership, valuation metrics & prices, every value traceable to its source filing. 18 tools; one API key works for both REST and MCP.

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "rockmoon": {
      "type": "http",
      "url": "https://mcp.rockmoon.ai/mcp",
      "headers": {
        "X-API-Key": "<YOUR_ROCKMOON_API_KEY>"
      }
    }
  }
}

Tools

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

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

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

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

Get balance sheet (assets, liabilities, equity).

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

Get daily price history for a ticker.

Get reported business / geographic / product segments.

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

Get top shareholders (institutions + individuals).

Get director / officer shareholdings (insider equity stakes).

Get insider trading activity (US Form 4 filings).

Get institutional holders (US 13F filings).

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

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

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

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

Compare valuation metrics across multiple tickers.

Overview

What is Rockmoon Financial Data?

Rockmoon Financial Data is an MCP server that provides AI agents with clean, cross-market financial data covering the US, Japan, and Korea. Every value traces back to its source filing (SEC, EDINET, or DART), enabling verifiable, filing-grade financials, segments, ownership, valuation metrics, and prices.

How to use Rockmoon Financial Data?

Add it to any MCP client such as Claude Desktop or Cursor by configuring a Streamable HTTP endpoint with a single API key. Use the provided JSON configuration with the URL https://mcp.rockmoon.ai/mcp and header X-API-Key (or Authorization: Bearer). Then ask natural-language queries like "Compare gross margins of AAPL, 7203 and 005930" or "Screen US semiconductors by ROE."

Key features of Rockmoon Financial Data

18 tools covering discovery, financials, valuation, screening, ownership, and prices
Deep, filing-grade Asia data for Japan and Korea, not shallow auto-aggregated feeds
Cross-market comparability via one canonical 80-field schema
MCP-native design so agents call it directly without REST wrappers
Every financial value backed by raw XBRL provenance with ASC/IFRS/Reg S-X citations

Use cases of Rockmoon Financial Data

Compare key financial metrics (gross margin, PE, ROE) across US, Japanese, and Korean companies in a single query
Screen global companies by valuation or quality filters combined with GICS sector/industry group
Analyze segment revenue trends over time via product, geography, or business segment breakdowns
Retrieve insider transactions, major shareholder holdings, and institutional ownership for due diligence

FAQ from Rockmoon Financial Data

How do I get an API key?

Get a free API key from https://rockmoon.ai. One key works for both the MCP endpoint and the REST API.

What markets and filing sources are covered?

The server covers US (SEC XBRL), Japan (EDINET), and Korea (DART) markets with filing-grade financial data.

How is data provenance ensured?

Every financial value traces back to the original XBRL filing with ASC, IFRS, or Reg S-X citations, accessible via the REST /v1/trace/ endpoint.

What MCP clients are supported?

Any MCP client that supports the Streamable HTTP transport, including Claude Desktop, Cursor, and other MCP-native tools.

How does Rockmoon differ from typical global data APIs?

Most global APIs are wide but shallow in Asia; Rockmoon offers deep, cleaned, comparable data for Asia plus the US, with full provenance and MCP-native integration instead of REST-only.