Public API Documentation

Eighteen market datasets and developer media extraction APIs are available as clean JSON APIs. Start keyless or use a single unified account API key for high-rate limits (120 req/min) and 5 concurrent download slots.

Base URL

https://xoomar.com

Rate Limit

30/min keyless · 120/min with key

Auth

X-API-Key header

Response Format

{
  "data": { ... },
  "updatedAt": "2026-06-11T14:00:00.000Z",
  "source": "xoomar.com",
  "docs": "https://xoomar.com/markets/api"
}

Developer Tools & Media APIs

High-throughput video extraction and SEC filing query APIs

Unified Key Auth

POST

/api/tools/youtube-downloadYouTube Downloader API

High-speed 1080p FHD video & MP3 audio extraction with batch queuing & direct stream endpoints

GET

/api/tools/edgar-lookup?q={ticker}EDGAR SEC Filing Lookup API

Real-time SEC EDGAR company submission history, CIK mapping, and filing records

Market Data APIs (18 Datasets)

GET

/api/markets/funding-ratesFunding Rates

Real-time funding rates from Binance, Bybit, OKX

GET

/api/markets/open-interest/{slug}Open Interest

Hourly OI history since 2021

GET

/api/markets/cotCOT Positioning

Weekly CFTC institutional positioning, 700+ markets

GET

/api/markets/sentimentSentiment

AI-scored multi-layer sentiment for 17 assets

GET

/api/markets/signals/{slug}Signals

Composite trading signals for bots and EAs

GET

/api/markets/options/{currency}Options

Max pain, DVOL, put/call ratio from Deribit

GET

/api/markets/whalesWhales

Hyperliquid whale positions and moves

GET

/api/markets/macroMacro

Yield curve, spreads, stablecoin supply

GET

/api/markets/liquidationsLiquidations

Real-time crypto liquidation stream

GET

/api/markets/insidersInsiders

SEC Form 4 insider trades, all US tickers

GET

/api/markets/funds/{slug}Fund Holdings

13F portfolios of 30 famous funds, 5 years of quarters

GET

/api/markets/structured-productsStructured Products

424B2/FWP structured note issuance, 5 years of filings

GET

/api/markets/events8-K Events

Corporate material events mapped to readable labels

GET

/api/markets/etf-flowsETF Flows

Spot BTC/ETH ETF holdings and computed net flows

GET

/api/markets/calendarEconomic Calendar

CPI, NFP, FOMC, GDP dates with post-release actuals

GET

/api/markets/rates/{country}Central Bank Rates

Policy rates for 49 economies, history to 1945

GET

/api/markets/predictionsPredictions

Polymarket odds with 15-minute history and 24h changes

GET

/api/markets/short-interestShort Interest

FINRA biweekly short interest, 5 years, every US symbol

Rate Limiting

30 requests per minute per IP without a key. Send an X-API-Key header from a free account for 120 per minute per key. Exceeding either returns HTTP 429 with a Retry-After header (seconds); an invalid key returns 401.

CSV Downloads

Every dataset also serves CSV at /api/markets/{dataset}/csv, up to 50,000 rows per pull, same rate limits.

Helper: Tracked Symbols

GET /api/markets/symbols lists the crypto symbols tracked by the funding, open interest, and signals endpoints, with each exchange's instrument ID.

Attribution appreciated but not required

If you use this API, a link to xoomar.com/markets is appreciated but not enforced.