#trades

The Stellar Decentralized Exchange (SDEX) central-limit order book, live from the public Stellar Horizon API — no key, nothing cached. Where the pools reader covers Stellar's AMM and the asset reader covers token metadata, this surfaces the on-chain order book the others miss. Pull the live bids and asks for any asset pair with their price and amount, plus the derived best bid, best ask, mid price and spread. Get a compact ticker for a pair — best bid/ask, mid, spread and the last executed trade. And read the most recent executed trades, network-wide or filtered to a single pair, with their price and base/counter amounts. Defaults to the deeply-traded XLM/USDC pair; quote any pair by passing the selling and buying assets (asset code plus issuer, or XLM for native). The order-book-and-trading layer for Stellar wallets, swap UIs, market-makers and analytics. Live from horizon.stellar.org.

api.oanor.com/stellardex-api

Live spot market data from Poloniex, one of the longest-running global crypto exchanges, served straight from its public v2 API with no key and nothing cached. The ticker endpoint returns a market's last price, open, 24-hour high and low, best bid and ask, the spread, 24-hour change, base and quote volume, trade count and mark price. The tickers endpoint returns every market for a quote currency ranked by 24-hour quote volume, so one call surfaces the most-traded pairs on the venue. The markets endpoint lists the tradable pairs with their price and quantity scales and minimum order size. The book endpoint returns live order-book depth — every bid and ask level with price and amount, plus the best bid/ask and spread. The trades endpoint returns the most recent public trades with price, size and taker side, so you can see the tape in real time. Everything is read live from Poloniex on each request, nothing stored. A distinct venue, separate from the other exchange feeds on the marketplace. Ideal for trading bots, price tickers, tape readers, arbitrage scanners and market dashboards. Live, no key. 5 spot endpoints. For candles or perpetuals use an OHLC or derivatives API.

api.oanor.com/poloniex-api

Live spot market data from Indodax, Indonesia's largest crypto exchange and the biggest in South-East Asia — served straight from its public API, no key, nothing cached. Get a pair's last price, buy/sell, 24h high/low and base/quote volume (in Indonesian rupiah, USDT or Bitcoin); list every pair for a quote currency with its name and 24h change, ranked by quote volume; browse the 500+ trading pairs; and read the most recent executed trades (price, amount, side). A distinct South-East-Asian venue with rupiah pricing, separate from other exchange feeds.

api.oanor.com/indodax-api

Live market data from Gemini, the US-regulated crypto exchange founded by the Winklevoss twins, served straight from its public API — no key, nothing cached. The ticker endpoint returns a pair's snapshot — open, high, low and last price, best bid and ask, and the 24-hour percentage change — plus Gemini's distinctive hourly_changes array, the last 24 hourly prices, which lets you draw an intraday sparkline from a single call. The prices endpoint returns every Gemini pair in one call with its price and 24-hour change — the whole board at once. The orderbook endpoint returns the top of the order book with the spread. The trades endpoint returns the live trade tape, the most recent executed trades with price, amount, side and time. Everything is Gemini's live venue data from a regulated US exchange, nothing stored. This is the Gemini price, intraday-history and tape layer for any trading, charting or market-data app. Distinct from Coinbase, Bitstamp, OKX, Gate.io and Kraken venue APIs and from aggregated feeds — this is Gemini's own order book, tape and hourly price history. 4 endpoints, no key on our side, real-time.

api.oanor.com/gemini-api

Live market data from Bitfinex, one of the longest-running crypto exchanges, served straight from its public v2 API — no key, nothing cached. Bitfinex is best known for two things this exposes as clean JSON: deep spot order books, and a peer-to-peer funding (margin-lending) market that few APIs surface. The ticker endpoint returns a trading pair's snapshot: best bid and ask, last price, 24-hour change and percentage, volume, high and low — BTC/USD near $63,000. The funding endpoint returns a currency's lending market: the Flash Return Rate, the best bid and ask lending rates with their loan periods, and the daily rate annualised to an APR — so you can see what lending US dollars or BTC on Bitfinex pays right now, around 14% APR for USD. The tickers endpoint returns the whole exchange in one call, either every trading pair or every funding currency. The trades endpoint returns the live trade tape — the most recent executed trades with price, amount, side and time. Everything is Bitfinex's live venue data, nothing stored. This is the Bitfinex price, funding-rate and tape layer for any trading, lending, charting or market-data app. Distinct from Coinbase, Binance and Kraken venue APIs and from aggregated feeds — this is Bitfinex's own order book, its margin-funding rates and tape. 4 endpoints, no key on our side, real-time.

api.oanor.com/bitfinex-api

Live market data straight from Bitstamp's public API — one of the oldest and most established crypto exchanges, founded in 2011 and strong in EUR and GBP pairs alongside USD, exposed as clean JSON with no key and nothing cached. The markets endpoint lists every trading pair with its decimals, minimum order size and trading status. The ticker endpoint returns a pair's full snapshot: last price, best bid and ask, 24-hour open, high and low, the VWAP, the 24-hour percentage change and base volume — BTC/USD around $63,300 and BTC/EUR around €54,900. The tickers endpoint returns that snapshot for every pair on the exchange in a single call, the whole Bitstamp market at once, sortable by 24-hour change or volume. The orderbook endpoint returns the top of the book with the spread. The trades endpoint returns the live trade tape — the most recent executed trades with price, amount, side and time — the raw market activity that aggregated price feeds throw away. The ohlc endpoint returns candles at a step you choose, from one minute to three days. Everything is Bitstamp's live venue data, nothing stored. This is the Bitstamp price, tape and liquidity layer for any trading, charting, arbitrage or market-data app. Distinct from Coinbase, Binance and Kraken venue APIs and from aggregated feeds — this is Bitstamp's own order book, trade tape and EUR/GBP markets. 6 endpoints, no key on our side, real-time.

api.oanor.com/bitstamp-api

Ladder-safety maths as an API, computed locally and deterministically — the angle, reach and load numbers that keep a ladder from sliding out or buckling. The angle endpoint applies the 4:1 rule: the base goes out one foot for every four feet of working length, which lands the ladder at about 75.5° — a 24-foot ladder sits 6 feet from the wall and reaches roughly 23 feet up, steep enough not to tip back and shallow enough not to slide. The extension endpoint gives the usable length and reach of a two-section extension ladder, which loses the overlap the sections share (3 feet up to 36, 4 to 48, 5 beyond), and the working height at the safe angle — remembering the ladder must extend 3 feet above a roof edge you step onto. The duty-rating endpoint turns a total load — your weight plus tools and materials, not just bodyweight — into the right duty class, from Type III household (200 lb) through I industrial (250) to IAA professional (375). Everything is computed locally and deterministically, so it is instant and private. Ideal for construction-safety and trades apps, jobsite and rental tools, OSHA training aids, and home-improvement sites. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints. Educational — always follow the manufacturer's labels and OSHA/ANSI rules.

api.oanor.com/ladder-api