# XOOMAR market data (slim) > XOOMAR market data, an MCP server by xoomar.com, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Free US market data as tools: SEC filings, insiders, short interest, 13F, COT, Fed liquidity. - Full: https://www.anchorterminal.com/tools/xoomar-mcp.md (~2,150 tokens) · this version ~2,080 tokens · JSON https://www.anchorterminal.com/tools/xoomar-mcp.json · canonical https://www.anchorterminal.com/tools/xoomar-mcp - Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04 # XOOMAR market data > Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/ - Kind: MCP server, by xoomar.com (https://xoomar.com/markets/api) - Category: Data providers (https://www.anchorterminal.com/categories/data-providers.md) - Listed because: It's published in the registry under xoomar.com, a namespace the registry only gives to whoever proves they control that domain. - What the official MCP registry says: Free US market data as tools: SEC filings, insiders, short interest, 13F, COT, Fed liquidity. ## Facts - MCP registry: `com.xoomar/xoomar-mcp` 0.1.11 - Endpoint: https://xoomar.com/mcp (streamable HTTP) - Package: npm `xoomar-mcp` (stdio) - Source: https://github.com/xoomar-code/xoomar-mcp - Website: https://xoomar.com/markets/api - npm downloads a week: 526 - GitHub stars: 1 - Registry entry updated: 2026-10-02 ## Tools - Tools it lists (26, about 4,370 tokens of context, `tools/list` without credentials over MCP 2025-11-25, checked 2026-10-04 22:24 UTC): - `short_interest`: 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… - `short_volume`: 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… - `fails_to_deliver`: 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… - `insider_trades`: 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… - `insider_clusters`: 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… - `threshold_list`: 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.… - `planned_insider_sales`: Form 144 notices: an affiliate's planned sale of restricted or control stock (seller, shares, approximate market value, planned date), filed before the trade. - `large_holders`: 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. - `fund_holders`: Which tracked 13F managers (Berkshire, Bridgewater, Citadel, Renaissance and others) held a ticker at their latest quarterly filing: shares, value, share of… - `fund_portfolio`: The latest 13F portfolio of one tracked manager by slug, e.g. berkshire-hathaway, bridgewater, citadel-advisors, renaissance-technologies. Positions with… - `company_financials`: Quarterly revenue, net income and diluted EPS (calendar quarters, fourth quarter derived from the annual report), annual revenue, net income, operating cash… - `corporate_events`: 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. - `earnings_calendar`: 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… - `cot_positioning`: Weekly CFTC positioning: the latest report across all tracked markets, or one market's history by slug (e.g. gold, bitcoin, euro-fx,… - `funding_rates`: Current perpetual funding rates on Binance, Bybit, OKX, Hyperliquid and Kraken for tracked crypto symbols (hourly venues shown as the 8-hour equivalent), or… - `fed_liquidity`: 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,… - `policy_rates`: 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). - `macro_series`: US Treasury yield curve points, curve spreads and stablecoin supply as daily series. Filter by series name and date range. - `treasury_auctions`: Treasury auction results and calendar since 2010 from TreasuryDirect: security type and term, auction and issue dates, offering amount, high yield or discount… - `economic_calendar`: Scheduled US releases from the agencies' own calendars (CPI, PPI, payrolls, weekly jobless claims, PCE, GDP, retail sales, housing, durable goods, industrial… - `private_placements`: 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,… - `ipo_pipeline`: S-1 and F-1 registration statements, 424B4 final prospectuses, EFFECT notices and RW withdrawals from EDGAR, with the filer's listing status. - `bitcoin_treasuries`: Bitcoin holdings of public companies from their own XBRL filings: coins, fair value, cost basis, as of the filing period. - `federal_contracts`: Largest US federal contract actions from USAspending, optionally summed by listed parent company (by=ticker) or filtered to one ticker. - `crypto_market`: Open interest history for a symbol slug, recent liquidations across exchanges, Deribit options metrics (put/call, max pain, DVOL) for BTC or ETH, or… - `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… - How its tools read to an agent (0 errors, 43 warnings, 1 note, about 4,370 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score): - warn TC11 cot_positioning: 1 parameter without a description: limit - warn TC11 crypto_market: 1 parameter without a description: dataset - warn TC11 earnings_calendar: 2 parameters without a description: limit, status - warn TC11 economic_calendar: 1 parameter without a description: importance - warn TC11 fed_liquidity: 1 parameter without a description: series - warn TC11 federal_contracts: 3 parameters without a description: by, days, listed - warn TC11 funding_rates: its one parameter, slug, has no description - warn TC11 insider_clusters: 1 parameter without a description: limit - warn TC11 insider_trades: 1 parameter without a description: window - warn TC11 ipo_pipeline: 1 parameter without a description: days - warn TC11 large_holders: 3 parameters without a description: days, form, sort - warn TC11 macro_series: 2 parameters without a description: series, to - warn TC11 planned_insider_sales: 1 parameter without a description: days - warn TC11 policy_rates: its one parameter, country, has no description - warn TC11 private_placements: 3 parameters without a description: cik, days, sort - warn TC11 threshold_list: 2 parameters without a description: limit, market - warn TC11 treasury_auctions: 3 parameters without a description: limit, type, upcoming - warn TC16 api_reference: no readOnlyHint or destructiveHint - warn TC16 bitcoin_treasuries: no readOnlyHint or destructiveHint - warn TC16 company_financials: no readOnlyHint or destructiveHint - warn TC16 corporate_events: no readOnlyHint or destructiveHint - warn TC16 cot_positioning: no readOnlyHint or destructiveHint - warn TC16 crypto_market: no readOnlyHint or destructiveHint - warn TC16 earnings_calendar: no readOnlyHint or destructiveHint - JSON: https://www.anchorterminal.com/api/v1/tools/xoomar-mcp.json - Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming