PlainQuant

com.plainquant/plainquantVersion 1.1.0

Free, read-only US and HK stock research: event studies, stock scores, rule results and SEC filings.

Status

Responds739 msNov 14, 2026, 14:10 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:10 UTC
Latency: 739 ms
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Registry data as of: Nov 14, 2026, 21:12 UTC

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Streamable HTTP

https://plainquant.com/mcpResponds739 msNov 14, 2026, 14:10 UTC

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Claude Code

claude mcp add --transport http plainquant https://plainquant.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: plainquant
Remote MCP server URL: https://plainquant.com/mcp

Cursor

{
  "mcpServers": {
    "plainquant": {
      "url": "https://plainquant.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"plainquant","type":"http","url":"https://plainquant.com/mcp"}'

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Tools

8 tools

Tools of PlainQuant
	Description		Read-only	Idempotent	Open world
`check_stocks`Trend and business scores (1-100) for up to 20 US or Hong Kong stocks, the industry ranks behind them, whether each is stretched above its average, and whether the scores have predicted later returns. Accepts tickers (NVDA), HK codes (700) or company names, comma-separated.	Trend and business scores (1-100) for up to 20 US or Hong Kong stocks, the industry ranks behind them, whether each is stretched above its average, and whether the scores have predicted later returns. Accepts tickers (NVDA), HK codes (700) or company names, comma-separated.	No	Yes	Yes	No
`company_filings`A US stock's important SEC filings in the last days (default 30, at most 90): results, 10-Q and 10-K, officer or director changes, major agreements and deals, 5%+ stakes (13D), with links to the filings on SEC EDGAR. Takes a ticker or company name. Hong Kong is not covered.	A US stock's important SEC filings in the last days (default 30, at most 90): results, 10-Q and 10-K, officer or director changes, major agreements and deals, 5%+ stakes (13D), with links to the filings on SEC EDGAR. Takes a ticker or company name. Hong Kong is not covered.	No	Yes	Yes	Yes
`event_study`For each past occurrence of the event, the move of the market (market: US = the S&P 500 via SPY, the default for US events; HK = the Hang Seng Index, from its first close after the news; 'measured' in the answer names it) 2 weeks, 4 weeks and 3 months later (fractions: 0.037 = +3.7%), plus median, share up, worst and best beside any window of the same length. With too few occurrences only the list is given. Give symbol (a ticker or company name of the measured market) to measure that one stock's own price, dividends included, instead of the market (QQQ for the Nasdaq-100). Use for questions like 'what happens to stocks after a midterm election / an FOMC meeting', 'what did AAPL do after CPI' or 'what did Hong Kong do after the Fed'.	For each past occurrence of the event, the move of the market (market: US = the S&P 500 via SPY, the default for US events; HK = the Hang Seng Index, from its first close after the news; 'measured' in the answer names it) 2 weeks, 4 weeks and 3 months later (fractions: 0.037 = +3.7%), plus median, share up, worst and best beside any window of the same length. With too few occurrences only the list is given. Give symbol (a ticker or company name of the measured market) to measure that one stock's own price, dividends included, instead of the market (QQQ for the Nasdaq-100). Use for questions like 'what happens to stocks after a midterm election / an FOMC meeting', 'what did AAPL do after CPI' or 'what did Hong Kong do after the Fed'.	No	Yes	Yes	No
`index_move_study`Like event_study, for a move of an index found in our prices: index SPY (S&P 500), QQQ (Nasdaq-100) or HSI (Hang Seng Index) moving pct percent (signed: -10 = a fall of 10% or more) within days trading days (a fall without days = from its high). Use for 'what happens if the Nasdaq drops 10% in two days' or 'what does Hong Kong do after the S&P 500 falls 3% in a day' (market HK).	Like event_study, for a move of an index found in our prices: index SPY (S&P 500), QQQ (Nasdaq-100) or HSI (Hang Seng Index) moving pct percent (signed: -10 = a fall of 10% or more) within days trading days (a fall without days = from its high). Use for 'what happens if the Nasdaq drops 10% in two days' or 'what does Hong Kong do after the S&P 500 falls 3% in a day' (market HK).	No	Yes	Yes	No
`list_events`The events PlainQuant has history for (Fed decisions, CPI, jobs reports, US elections, quarterly options expiry, market drops), with ids, names in English and Chinese, and aliases.	The events PlainQuant has history for (Fed decisions, CPI, jobs reports, US elections, quarterly options expiry, market drops), with ids, names in English and Chinese, and aliases.	No	Yes	Yes	No
`market_snapshot`US and Hong Kong large stocks as of each market's last close (the date is as_of): how many have a strong, good, mixed or weak price trend, how many are stretched above their average, and the strongest and weakest groups by median trend. A description of that day, not a forecast. Use for 'how broad is the rally' or 'which sectors are strongest'.	US and Hong Kong large stocks as of each market's last close (the date is as_of): how many have a strong, good, mixed or weak price trend, how many are stretched above their average, and the strongest and weakest groups by median trend. A description of that day, not a forecast. Use for 'how broad is the rally' or 'which sectors are strongest'.	No	Yes	Yes	No
`rule_estimates`For each of PlainQuant's library stock-picking rules (US and Hong Kong) at default settings: the plain backtest's return a year after trading costs beside the honest estimate left after delisted stocks and untuned test periods (fractions: 0.05 = 5% a year), the trade count and the test window. Use for 'does momentum / value / moving-average investing work' or 'how much do backtests overstate'.	For each of PlainQuant's library stock-picking rules (US and Hong Kong) at default settings: the plain backtest's return a year after trading costs beside the honest estimate left after delisted stocks and untuned test periods (fractions: 0.05 = 5% a year), the trade count and the test window. Use for 'does momentum / value / moving-average investing work' or 'how much do backtests overstate'.	No	Yes	Yes	No
`upcoming_events`Fed decisions, CPI and jobs reports scheduled in the next days (default 30, at most 180), copied from each official calendar, each with the link to what the market did after past ones. Use for 'what market events are coming this week'.	Fed decisions, CPI and jobs reports scheduled in the next days (default 30, at most 180), copied from each official calendar, each with the link to what the market did after past ones. Use for 'what market events are coming this week'.	No	Yes	Yes	No

Details

Registry status: Active
Published: Nov 12, 2026
Updated: Nov 12, 2026
Website: https://plainquant.com/developers⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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