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Ryufin

by ryufin.com · remote · no sign-in to list tools · v1.0.1 · published by com.ryufin

Free US stock research from SEC filings: five plain answers on 3,000+ stocks. No API key.

Read only
CompareRegistry entry

6 tools: 6 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http stocks https://ryufin.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Only reads 6Claude Code: allow
  • get_answer_changesStocks whose answer to one of the five questions changed in the latest nightly run (for example Safety from Good to Watch), largest companies first.No findings

    Why it is in this group

    • The name "get_answer_changes" says "get": a word for reading.
    Description, as the server wrote it
    Stocks whose answer to one of the five questions changed in the latest nightly run (for example Safety from Good to Watch), largest companies first.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true
  • get_company_newsThe company's own recent current reports (8-K), newest first: the date, what kind of event, the company's own sentence and a link to the filing on sec.gov.No findings

    Why it is in this group

    • The name "get_company_news" says "get": a word for reading.
    Description, as the server wrote it
    The company's own recent current reports (8-K), newest first: the date, what kind of event, the company's own sentence and a link to the filing on sec.gov.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true
  • get_financial_historyA reported financial series for one stock from its SEC filings, trailing twelve months or single quarters, newest last.No findings

    Why it is in this group

    • The name "get_financial_history" says "get": a word for reading.
    Description, as the server wrote it
    A reported financial series for one stock from its SEC filings, trailing twelve months or single quarters, newest last. Metrics: pe, revenue, net_income, eps, gross_margin, op_margin, net_margin, roe, roa, roic, fcf.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true
  • get_stock_answersRyufin's five answers for one stock: is the business good, is it safe, is the price fair, is it growing, what is the market doing with it.No findings

    Why it is in this group

    • The name "get_stock_answers" says "get": a word for reading.
    Description, as the server wrote it
    Ryufin's five answers for one stock: is the business good, is it safe, is the price fair, is it growing, what is the market doing with it. Each answer has a one-word verdict, a plain sentence, the checks it was read from (with values and dates) and, when it moved recently, what it was before.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true
  • get_stock_overviewPrice, market value, P/E, returns, sector, RyuScore (0 to 100 from seven weighted criteria) and what the company says it does, verbatim from its latest annual report.No findings

    Why it is in this group

    • The name "get_stock_overview" says "get": a word for reading.
    Description, as the server wrote it
    Price, market value, P/E, returns, sector, RyuScore (0 to 100 from seven weighted criteria) and what the company says it does, verbatim from its latest annual report.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true
  • search_stocksFind US-listed companies Ryufin covers by ticker or company name.No findings

    Why it is in this group

    • The name "search_stocks" says "search": a word for reading.
    Description, as the server wrote it
    Find US-listed companies Ryufin covers by ticker or company name. Returns ticker, name, sector, market value and the Ryufin page.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http stocks https://ryufin.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__stocks__search_stocks",
      "mcp__stocks__get_stock_answers",
      "mcp__stocks__get_stock_overview",
      "mcp__stocks__get_financial_history",
      "mcp__stocks__get_company_news",
      "mcp__stocks__get_answer_changes"
    ],
    "ask": [],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as stocks. Review it before you use it.