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FinancialMCP serverFirst audited Nov 13, 2026

History of Market

Read-only U.S. stock market history: S&P 500 since 1928, CAPE, drawdowns, index changes.The vendor's description, from its MCP Registry listing.

Passed public checksAudited Nov 13, 2026

Every public check ran and passed. Public audit: we connect as an AI client would, list the tools and check what they say. We do not run them. How we audit

Does it work?
YesConnected in 165 ms.
Sign-up?
None neededIt answered without any account or key.
Can it change things?
No, read-onlyAll 5 tools say they only read.
Endpointhttps://historyofmarket.com/mcp

Website Streamable HTTP · protocol 2025-11-25 · server version 1.0.0

What we checked, the evidence, and the tools it offers.

What we checked

Security

  • Passed: Connections are encrypted (HTTPS).

  • Passed: No hidden instructions found in tool text.

Safety labels

  • Passed: Every tool says whether it only reads or can change things.

Tools

  • Passed: 5 tools listed.

  • Passed: Every tool describes its inputs with a valid schema.

Protocol

  • Passed: The MCP handshake works (Streamable HTTP).

  • Passed: Protocol version 2025-11-25 (latest).

  • Passed: Unknown requests are refused.

Connection

  • Passed: The server responds.

Tools (5)

As the server describes them. The labels are the server's own: it says whether each tool only reads or can change things.

  • 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, drawdown from the high…Read-only
  • annual_returnsCalendar-year returns by year with the arithmetic mean and compound annual rate over the complete years in the range. The basis depends on the index and is stated in `basis`: sp500 (from 1928) has bo…Read-only
  • index_changesConstituent changes with effective date, the company added, the company removed and the reason. sp500 from 2016, ndx from 2020. Newest first.Read-only
  • search_chartsSearch 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 th…Read-only
  • get_datasetRead 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…Read-only

Audit history

  1. Nov 13Passed

What we sent

Every request in this audit, with the answer and how long it took. We never send credentials and never call a tool.

RequestAnswerTime
initializeHTTP 200165 ms
initializedHTTP 20279 ms
tools/listHTTP 200146 ms
unknown-methodHTTP 20077 ms

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