MCP MeasureMCP Measure

index observed

XOOMAR market data

Free US market data as tools: SEC filings, insiders, short interest, 13F, COT, Fed liquidity.

Should I use this

Quality & Safety

A
Description quality
95%
Schema completeness
80%
Naming quality
80%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Findings (3)

  • LOWTool 'planned_insider_sales' description lacks action verbin planned_insider_sales
  • LOWTool 'private_placements' description lacks action verbin private_placements
  • LOWTool 'bitcoin_treasuries' description lacks action verbin bitcoin_treasuries

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~3,951Tokens (tool definitions)
~969 BTypical response size
Significant attention impact (3.09% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "xoomar-mcp": {
      "command": "npx",
      "args": [
        "xoomar-mcp"
      ]
    }
  }
}

Runnable packages

npmxoomar-mcp0.1.11stdio

Remote endpoints

https://xoomar.com/mcpstreamable-http

What it can do

Tool inventory

Tools (26)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
⚪short_interest(symbol, limit)

Short interest for a US stock: shares short, average daily volume, days to cover, change, per FINRA settlement date (twice a month), newest first. Without a symbol: the latest settlement's highest days-to-cover names.

Input Schema

{
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "limit": {
      "description": "Rows to return (default 24)",
      "type": "integer",
      "minimum": 1,
      "maximum": 500
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢short_volume(symbol, days, from, to)

Daily short sale volume and total volume per symbol from FINRA's Reg SHO files since August 2021, with the short share of volume. History for a symbol (oldest first; from, to and limit select the window, up to 5,000 days) or the latest day's largest short volumes.

Input Schema

{
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "days": {
      "description": "Newest days of history for a symbol (default 60)",
      "type": "integer",
      "minimum": 1,
      "maximum": 5000
    },
    "from": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "to": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢fails_to_deliver(symbol, from, to, limit)

SEC fails-to-deliver quantity and price by settlement date for a symbol since January 2010 (from, to and limit select the window, up to 5,000 dates), or the latest settlement's largest fails by value.

Input Schema

{
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "from": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "to": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "limit": {
      "description": "Newest dates in the window (default 400)",
      "type": "integer",
      "minimum": 1,
      "maximum": 5000
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢insider_trades(ticker, type, window, from, to, ...)

Insider transactions from SEC Form 4: insider name and title, transaction code, shares, price, value, date. History for a ticker (from, to and limit select the window, up to 2,000 rows) or the latest trades across companies (type buys for open-market purchases, sells for sales).

Input Schema

{
  "type": "object",
  "properties": {
    "ticker": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "type": {
      "description": "buys: open-market purchases, sells: sales (latest view only)",
      "type": "string",
      "enum": [
        "buys",
        "sells"
      ]
    },
    "window": {
      "type": "string",
      "enum": [
        "7d",
        "30d",
        "90d"
      ]
    },
    "from": {
      "description": "YYYY-MM-DD (ticker history only)",
      "type": "string",
      "maxLength": 10
    },
    "to": {
      "description": "YYYY-MM-DD (ticker history only)",
      "type": "string",
      "maxLength": 10
    },
    "limit": {
      "description": "Newest rows in the window (ticker history only, default 200)",
      "type": "integer",
      "minimum": 1,
      "maximum": 2000
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢insider_clusters(days, minInsiders, minUsd, ticker, limit)

Companies where several different insiders bought their own stock on the open market within a window (Form 4 transaction code P only): distinct buyers with titles, trades, combined value, first and latest trade dates. Default: three or more insiders in 30 days, sorted by number of insiders then value. Use ticker to check one company.

Input Schema

{
  "type": "object",
  "properties": {
    "days": {
      "description": "Window in days (default 30)",
      "type": "integer",
      "minimum": 1,
      "maximum": 365
    },
    "minInsiders": {
      "description": "Distinct buyers required (default 3)",
      "type": "integer",
      "minimum": 2,
      "maximum": 20
    },
    "minUsd": {
      "description": "Combined purchases at or above this, USD",
      "type": "number",
      "minimum": 0
    },
    "ticker": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 500
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢threshold_list(date, symbol, market, limit)

Reg SHO threshold lists from the Nasdaq and Cboe daily files since 2022: securities whose fails to deliver stayed above the threshold for five settlement days. One date (default the newest), one symbol's days on the list, or one listing market.

Input Schema

{
  "type": "object",
  "properties": {
    "date": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "symbol": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "market": {
      "type": "string",
      "enum": [
        "nasdaq",
        "cboe"
      ]
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 5000
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪planned_insider_sales(symbol, days)

Form 144 notices: an affiliate's planned sale of restricted or control stock (seller, shares, approximate market value, planned date), filed before the trade.

Input Schema

{
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "days": {
      "type": "integer",
      "minimum": 1,
      "maximum": 365
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪large_holders(symbol, form, days, sort)

Holders above 5% from Schedule 13D (active) and 13G (passive) cover pages: holder, shares, percent of class, filing date. For a symbol or the latest filings.

Input Schema

{
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "form": {
      "type": "string",
      "enum": [
        "13D",
        "13G"
      ]
    },
    "days": {
      "type": "integer",
      "minimum": 1,
      "maximum": 365
    },
    "sort": {
      "type": "string",
      "enum": [
        "filed",
        "percent"
      ]
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪fund_holders(ticker)

Which tracked 13F managers (Berkshire, Bridgewater, Citadel, Renaissance and others) held a ticker at their latest quarterly filing: shares, value, share of portfolio, change.

Input Schema

{
  "type": "object",
  "properties": {
    "ticker": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    }
  },
  "required": [
    "ticker"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪fund_portfolio(slug)

The latest 13F portfolio of one tracked manager by slug, e.g. berkshire-hathaway, bridgewater, citadel-advisors, renaissance-technologies. Positions with value, shares and share of portfolio.

Input Schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "minLength": 2,
      "maxLength": 60,
      "description": "Manager slug, e.g. berkshire-hathaway"
    }
  },
  "required": [
    "slug"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪company_financials(symbol)

Quarterly revenue, net income and diluted EPS (calendar quarters, fourth quarter derived from the annual report), annual revenue, net income, operating cash flow, capex, buybacks and dividends, and the latest balance sheet instants, from the company's own XBRL filings.

Input Schema

{
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    }
  },
  "required": [
    "symbol"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪corporate_events(ticker, item, days)

8-K current reports with their item numbers (2.02 earnings, 5.02 officer changes, 1.01 agreements and so on), for a ticker or the latest across companies.

Input Schema

{
  "type": "object",
  "properties": {
    "ticker": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "item": {
      "description": "8-K item number, e.g. 2.02",
      "type": "string",
      "maxLength": 8
    },
    "days": {
      "description": "Window in days (default 30, max 90)",
      "type": "integer",
      "minimum": 1,
      "maximum": 90
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪earnings_calendar(ticker, from, to, status, limit)

When US companies report results, from their own 8-K filings. With a ticker: every reported date since 2023 and the next expected date (an estimate until the company confirms it). Without: the calendar window (default today to 14 days ahead; from and to open any window up to 120 days; status reported or estimated). Dates only, no EPS or consensus.

Input Schema

{
  "type": "object",
  "properties": {
    "ticker": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "from": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "to": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "status": {
      "type": "string",
      "enum": [
        "reported",
        "estimated"
      ]
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 2000
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪cot_positioning(market, limit)

Weekly CFTC positioning: the latest report across all tracked markets, or one market's history by slug (e.g. gold, bitcoin, euro-fx, e-mini-s-p-500-stock-index, 10-year-u-s-treasury-notes-chicago-board-of-trade; the latest report lists every slug): open interest and long/short by trader category.

Input Schema

{
  "type": "object",
  "properties": {
    "market": {
      "description": "Market slug, e.g. gold; omit for the latest report across markets",
      "type": "string",
      "maxLength": 40
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 500
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪funding_rates(slug)

Current perpetual funding rates on Binance, Bybit, OKX, Hyperliquid, Kraken and BitMEX for tracked crypto symbols (hourly venues shown as the 8-hour equivalent), or one symbol's history by slug (e.g. btc, eth, sol).

Input Schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "maxLength": 20
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪fed_liquidity(series, limit)

Weekly US net liquidity (Fed balance sheet minus the Treasury General Account minus reverse repo) with its components, oldest first, or one FRED series (WALCL, WRESBAL, RRPONTSYD, WTREGEN, SOFR, EFFR, IORB, WSHOSHO).

Input Schema

{
  "type": "object",
  "properties": {
    "series": {
      "type": "string",
      "maxLength": 12
    },
    "limit": {
      "description": "Most recent N observations (default 52)",
      "type": "integer",
      "minimum": 1,
      "maximum": 2000
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪policy_rates(country)

Central bank policy rates for 38 economies with a current series: the current table, or one country code's history (e.g. us, xm for the euro area, jp, gb).

Input Schema

{
  "type": "object",
  "properties": {
    "country": {
      "type": "string",
      "maxLength": 4
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪macro_series(series, from, to)

US Treasury yield curve points, curve spreads and stablecoin supply as daily series. Filter by series name and date range.

Input Schema

{
  "type": "object",
  "properties": {
    "series": {
      "type": "string",
      "maxLength": 40
    },
    "from": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "to": {
      "type": "string",
      "maxLength": 10
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪treasury_auctions(type, term, from, to, upcoming, ...)

Treasury auction results and calendar since 2010 from TreasuryDirect: security type and term, auction and issue dates, offering amount, high yield or discount rate, bid-to-cover, dealer, direct and indirect allotments. Default: coupon auctions (notes, bonds, TIPS, FRNs); upcoming=true lists announced auctions not yet run.

Input Schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "enum": [
        "Note",
        "Bond",
        "TIPS",
        "FRN",
        "Bill",
        "CMB",
        "all"
      ]
    },
    "term": {
      "description": "One term, e.g. 10-Year",
      "type": "string",
      "maxLength": 30
    },
    "from": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "to": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "upcoming": {
      "type": "boolean"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 5000
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪economic_calendar(from, to, importance)

Scheduled US releases from the agencies' own calendars (CPI, PPI, payrolls, weekly jobless claims, PCE, GDP, retail sales, housing, durable goods, industrial production, trade, FOMC decisions and minutes, Beige Book), with the actual and previous print filled after release and a unit field. No consensus figures. Default window: last 7 days to next 30.

Input Schema

{
  "type": "object",
  "properties": {
    "from": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "to": {
      "description": "YYYY-MM-DD",
      "type": "string",
      "maxLength": 10
    },
    "importance": {
      "type": "string",
      "enum": [
        "high",
        "medium",
        "low"
      ]
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪private_placements(days, cik, sort, funds)

Form D notices of exempt offerings: issuer, amount sold, amount offered, investors, whether it is a pooled fund. Largest raises in a window, one issuer by CIK, or the most recent filings.

Input Schema

{
  "type": "object",
  "properties": {
    "days": {
      "type": "integer",
      "minimum": 1,
      "maximum": 365
    },
    "cik": {
      "type": "string",
      "maxLength": 10
    },
    "sort": {
      "type": "string",
      "enum": [
        "recent"
      ]
    },
    "funds": {
      "description": "Include pooled investment funds",
      "type": "boolean"
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪ipo_pipeline(form, days, new)

S-1 and F-1 registration statements, 424B4 final prospectuses, EFFECT notices and RW withdrawals from EDGAR, with the filer's listing status.

Input Schema

{
  "type": "object",
  "properties": {
    "form": {
      "description": "e.g. S-1,F-1 or 424B4",
      "type": "string",
      "maxLength": 20
    },
    "days": {
      "type": "integer",
      "minimum": 1,
      "maximum": 365
    },
    "new": {
      "description": "Only filers not yet on the ticker list",
      "type": "boolean"
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪bitcoin_treasuries

Bitcoin holdings of public companies from their own XBRL filings: coins, fair value, cost basis, as of the filing period.

Input Schema

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪federal_contracts(ticker, days, by, listed)

Largest US federal contract actions from USAspending, optionally summed by listed parent company (by=ticker) or filtered to one ticker.

Input Schema

{
  "type": "object",
  "properties": {
    "ticker": {
      "type": "string",
      "minLength": 1,
      "maxLength": 12,
      "description": "US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B."
    },
    "days": {
      "type": "integer",
      "minimum": 1,
      "maximum": 365
    },
    "by": {
      "type": "string",
      "enum": [
        "ticker"
      ]
    },
    "listed": {
      "type": "boolean"
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪crypto_market(dataset, slug)

Open interest history for a symbol slug, recent liquidations across exchanges, Deribit options metrics (put/call, max pain, DVOL) for BTC or ETH, or Hyperliquid whale positions.

Input Schema

{
  "type": "object",
  "properties": {
    "dataset": {
      "type": "string",
      "enum": [
        "open-interest",
        "liquidations",
        "options",
        "whales"
      ]
    },
    "slug": {
      "description": "open-interest: symbol slug (e.g. btc); options: BTC or ETH; whales: coin (optional)",
      "type": "string",
      "maxLength": 20
    }
  },
  "required": [
    "dataset"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪api_reference

How the underlying free API works: endpoints, parameters, rate limits, CSV downloads and the attribution terms. Use when a tool here does not cover the exact query.

Input Schema

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

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