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XOOMAR market data

REMOTE · XOOMAR.COM · 2 COMPONENTS · SCANNED SEP 25

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

+3 this week 69 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security63
Transport & Reachability100
Schema Quality & AI Usability75
  • AI-judged instruction clarity (good).Pass
  • Tool/resource definitions use about 2583 tokens (~99/item across 26 items; 26 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
  • Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage87
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 62% of tool parameters carry a description.Partial
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 26 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 26 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

How do I install the XOOMAR market data MCP server?

XOOMAR market data is a hosted endpoint at https://xoomar.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · xoomar.com

# add to Claude Code
claude mcp add --transport http com-xoomar-xoomar-mcp 'https://xoomar.com/mcp'
// .cursor/mcp.json
{
  "mcpServers": {
    "com-xoomar-xoomar-mcp": {
      "url": "https://xoomar.com/mcp"
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "com-xoomar-xoomar-mcp": {
      "type": "http",
      "url": "https://xoomar.com/mcp"
    }
  }
}
# ~/.codex/config.toml
[mcp_servers.com-xoomar-xoomar-mcp]
url = "https://xoomar.com/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-xoomar-xoomar-mcp": {
      "type": "remote",
      "url": "https://xoomar.com/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add com-xoomar-xoomar-mcp --url 'https://xoomar.com/mcp' --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  com-xoomar-xoomar-mcp:
    url: "https://xoomar.com/mcp"
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "com-xoomar-xoomar-mcp": {
      "Transport": "http",
      "Url": "https://xoomar.com/mcp"
    }
  }
}
# add to Vellum
assistant mcp add com-xoomar-xoomar-mcp -t streamable-http -u 'https://xoomar.com/mcp'
// mcp.json
{
  "mcpServers": {
    "com-xoomar-xoomar-mcp": {
      "type": "http",
      "url": "https://xoomar.com/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 25 Sept 26 +1
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 24 Sept 26 0
    • Tool “cot_positioning” rewrote its description, which is the text the model reads security
    • Tool “earnings_calendar” rewrote its description, which is the text the model reads security
    • Tool “insider_trades” rewrote its description, which is the text the model reads security
    • Tool “policy_rates” rewrote its description, which is the text the model reads security
    • Server version: 0.1.8 → 0.1.10 functional
    • “corporate_events” reworded the description of “days” cosmetic
    • “insider_trades” reworded the description of “type” cosmetic
  • 23 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

  • 20 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

  • 19 Sept 26 0
    • Stability: unverified → 0.03 ▲ functional
    • Server version: 0.1.7 → 0.1.8 functional
  • 18 Sept 26 66

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 25 Sept 2026 · Probed https://xoomar.com/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=xoomar.com CN=WE1,O=Google Trust Services,C=US 6 Aug 2026 4 Nov 2026 ECDSA 256 ECDSA-SHA256 6f10b9b22ea2e570ece529dddfc68f3
SANs: xoomar.com, *.xoomar.com
CN=WE1,O=Google Trust Services,C=US (CA) CN=GTS Root R4,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 ECDSA 256 ECDSA-SHA384 7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 15 Nov 2023 28 Jan 2028 ECDSA 384 SHA256-RSA 7fe530bf331343bedd821610493d8a1b

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of xoomar.com. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
com. present 19718 13 Verified
xoomar.com. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=63072000; includeSubDomains; preload
content-security-policy default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://www.googletagmanager.com https://pagead2.googlesyndication.com https://*.adtrafficquality.google https://fundingchoicesmessages.google.com https://static.cloudflareinsights.com; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob: https://xoomar.com https://*.adtrafficquality.google https://*.googleusercontent.com https://lh3.googleusercontent.com https://images.unsplash.com https://images.pexels.com https://pixabay.com https://pagead2.googlesyndication.com https://googleads.g.doubleclick.net https://stats.g.doubleclick.net https://www.google-analytics.com https://www.google.com; font-src 'self'; connect-src 'self' https://xoomar.com https://*.adtrafficquality.google https://csi.gstatic.com https://www.google-analytics.com https://analytics.google.com https://stats.g.doubleclick.net https://www.google.com https://pagead2.googlesyndication.com https://googleads.g.doubleclick.net https://fundingchoicesmessages.google.com https:/
x-content-type-options nosniff
x-frame-options DENY
referrer-policy strict-origin-when-cross-origin
permissions-policy camera=(), microphone=(), geolocation=()

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://xoomar.com/mcp Verified 200
http (plaintext) http://xoomar.com/mcp HTTPS enforced 301 https://xoomar.com/mcp
MCP tools · 26 exposed · ~2,583 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
api_reference ~41

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 present but exposes no named parameters.

No output schema declared.

No examples provided.

bitcoin_treasuries ~37

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

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

company_financials ~96

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.

NameTypeReqDescription
symbolstringyesUS ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

corporate_events ~117

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.

NameTypeReqDescription
daysinteger–Window in days (default 30, max 90)
itemstring–8-K item number, e.g. 2.02
tickerstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

cot_positioning ~113

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.

NameTypeReqDescription
limitinteger––
marketstring–Market slug, e.g. gold; omit for the latest report across markets

No output schema declared.

No examples provided.

crypto_market ~85

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.

NameTypeReqDescription
datasetstringyes–
slugstring–open-interest: symbol slug (e.g. btc); options: BTC or ETH; whales: coin (optional)

No output schema declared.

No examples provided.

earnings_calendar ~151

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.

NameTypeReqDescription
fromstring–YYYY-MM-DD
limitinteger––
statusstring––
tickerstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.
tostring–YYYY-MM-DD

No output schema declared.

No examples provided.

economic_calendar ~117

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.

NameTypeReqDescription
fromstring–YYYY-MM-DD
importancestring––
tostring–YYYY-MM-DD

No output schema declared.

No examples provided.

fails_to_deliver ~125

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.

NameTypeReqDescription
fromstring–YYYY-MM-DD
limitinteger–Newest dates in the window (default 400)
symbolstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.
tostring–YYYY-MM-DD

No output schema declared.

No examples provided.

fed_liquidity ~95

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).

NameTypeReqDescription
limitinteger–Most recent N observations (default 52)
seriesstring––

No output schema declared.

No examples provided.

federal_contracts ~88

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

NameTypeReqDescription
bystring––
daysinteger––
listedboolean––
tickerstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

fund_holders ~80

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

NameTypeReqDescription
tickerstringyesUS ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

fund_portfolio ~72

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.

NameTypeReqDescription
slugstringyesManager slug, e.g. berkshire-hathaway

No output schema declared.

No examples provided.

funding_rates ~70

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).

NameTypeReqDescription
slugstring––

No output schema declared.

No examples provided.

insider_clusters ~160

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.

NameTypeReqDescription
daysinteger–Window in days (default 30)
limitinteger––
minInsidersinteger–Distinct buyers required (default 3)
minUsdnumber–Combined purchases at or above this, USD
tickerstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

insider_trades ~180

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).

NameTypeReqDescription
fromstring–YYYY-MM-DD (ticker history only)
limitinteger–Newest rows in the window (ticker history only, default 200)
tickerstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.
tostring–YYYY-MM-DD (ticker history only)
typestring–buys: open-market purchases, sells: sales (latest view only)
windowstring––

No output schema declared.

No examples provided.

ipo_pipeline ~86

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

NameTypeReqDescription
daysinteger––
formstring–e.g. S-1,F-1 or 424B4
newboolean–Only filers not yet on the ticker list

No output schema declared.

No examples provided.

large_holders ~105

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.

NameTypeReqDescription
daysinteger––
formstring––
sortstring––
symbolstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

macro_series ~56

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

NameTypeReqDescription
fromstring–YYYY-MM-DD
seriesstring––
tostring––

No output schema declared.

No examples provided.

planned_insider_sales ~80

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

NameTypeReqDescription
daysinteger––
symbolstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

policy_rates ~54

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).

NameTypeReqDescription
countrystring––

No output schema declared.

No examples provided.

private_placements ~83

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.

NameTypeReqDescription
cikstring––
daysinteger––
fundsboolean–Include pooled investment funds
sortstring––

No output schema declared.

No examples provided.

short_interest ~101

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.

NameTypeReqDescription
limitinteger–Rows to return (default 24)
symbolstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

short_volume ~141

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.

NameTypeReqDescription
daysinteger–Newest days of history for a symbol (default 60)
fromstring–YYYY-MM-DD
symbolstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.
tostring–YYYY-MM-DD

No output schema declared.

No examples provided.

threshold_list ~115

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.

NameTypeReqDescription
datestring–YYYY-MM-DD
limitinteger––
marketstring––
symbolstring–US ticker symbol, e.g. GME. Class shares as on the SEC list, e.g. BRK-B.

No output schema declared.

No examples provided.

treasury_auctions ~135

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.

NameTypeReqDescription
fromstring–YYYY-MM-DD
limitinteger––
termstring–One term, e.g. 10-Year
tostring–YYYY-MM-DD
typestring––
upcomingboolean––

No output schema declared.

No examples provided.

Common questions

What is the XOOMAR market data MCP server?

XOOMAR market data is an MCP server listed in the public MCP registry as com.xoomar/xoomar-mcp. Free US market data as tools: SEC filings, insiders, short interest, 13F, COT, Fed liquidity. This page covers its hosted endpoint (https://xoomar.com/mcp).

Is the XOOMAR market data MCP server safe to use?

XOOMAR market data scores 69 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the XOOMAR market data MCP server expose?

XOOMAR market data exposes 26 tools: short_interest, short_volume, fails_to_deliver, insider_trades, insider_clusters, and 21 more. Their descriptions and schemas cost roughly 2,583 tokens of context every time the server is loaded.

Does the XOOMAR market data MCP server require authentication?

No. We connected to XOOMAR market data without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the XOOMAR market data MCP server still maintained?

XOOMAR market data is still listed as active in the MCP registry. We last reached this channel on 25 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.