Skip to content

History of Market

by historyofmarket.com · remote · no sign-in to list tools · v1.0.0 · published by com.historyofmarket

Read-only U.S. stock market history: S&P 500 since 1928, CAPE, drawdowns, index changes.

Changes · 2
CompareRegistry entry

5 tools: 2 change things and 3 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 market-history https://historyofmarket.com/mcp

Tools

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

5 tools

Changes things 2Claude Code: ask
  • annual_returnsCalendar-year returns by year, price return and total return (dividends reinvested), with the arithmetic mean and compound annual rate over the complete years in the range.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Calendar-year returns by year, price return and total return (dividends reinvested), with the arithmetic mean and compound annual rate over the complete years in the range. Indexes: sp500 (from 1928), ndx, sox, xlk, xlf, xly, xlp. The current year is year-to-date and flagged `ytd`.

    Annotations the server declares

    • title: Calendar-year returns
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • index_changesConstituent changes with effective date, the company added, the company removed and the reason.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Constituent changes with effective date, the company added, the company removed and the reason. sp500 from 2016, ndx from 2020. Newest first.

    Annotations the server declares

    • title: Index additions and deletions
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 3Claude Code: allow
  • get_datasetRead one published dataset (the JSON behind a chart), e.g.No findings

    Why it is in this group

    • The name "get_dataset" says "get": a word for reading.
    Description, as the server wrote it
    Read one published dataset (the JSON behind a chart), e.g. "sp500/drawdowns", "sp500/pe", "ndx/forward-pe", "recessions". Rows can be filtered by `since`/`until` on their `date` (or `year`). A result is capped at about 60,000 characters: when a file is larger (long daily series), each array keeps its most recent rows and the cut is reported under `windowed`. Scalars and summary fields are always included.

    Annotations the server declares

    • title: Read a dataset
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_latestCurrent headline readings (value, unit, observation date) for the site's charts: S&P 500 level, Shiller CAPE, forward P/E for the S&P 500, Nasdaq 100, SOX and sector ETFs, VIX, dra…No findings

    Why it is in this group

    • The name "get_latest" says "get": a word for reading.
    Description, as the server wrote it
    Current headline readings (value, unit, observation date) for the site's charts: S&P 500 level, Shiller CAPE, forward P/E for the S&P 500, Nasdaq 100, SOX and sector ETFs, VIX, drawdown from the high, breadth, Magnificent 7 weight and more. Pass `id` for one chart, or omit it for all.

    Annotations the server declares

    • title: Latest readings
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_chartsSearch the site's charts by topic or question (e.g.No findings

    Why it is in this group

    • The name "search_charts" says "search": a word for reading.
    Description, as the server wrote it
    Search the site's charts by topic or question (e.g. "bear markets", "Shiller CAPE", "Nasdaq 100 drawdown", "monthly seasonality"). Returns each chart's title, the question it answers, its page and the dataset path to pass to get_dataset.

    Annotations the server declares

    • title: Find a chart or dataset
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

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 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http market-history https://historyofmarket.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__market-history__get_latest",
      "mcp__market-history__search_charts",
      "mcp__market-history__get_dataset"
    ],
    "ask": [
      "mcp__market-history__annual_returns",
      "mcp__market-history__index_changes"
    ],
    "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 market-history. Review it before you use it.