# AscendEX Exchange API > Live spot market data from AscendEX (formerly BitMax), a global crypto exchange, served straight from its public API with no key and nothing cached. The ticker endpoint returns a market's last price, open, 24-hour high and low, 24-hour change, best bid and ask and volume. The tickers endpoint returns every spot market for a quote currency ranked by 24-hour volume, so one call surfaces the most-traded pairs on the venue. The markets endpoint lists the tradable pairs with their tick and lot size and minimum and maximum notional. The book endpoint returns live order-book depth — every bid and ask level with price and amount, plus the best bid/ask and the spread. Everything is read live from AscendEX on each request, nothing stored. A distinct global venue, separate from the other exchange feeds on the marketplace. Markets are written BASE/QUOTE; BTC_USDT is also accepted. Ideal for trading bots, price tickers, arbitrage scanners, portfolio trackers and market dashboards. Live, no key. 4 spot endpoints. For candles or perpetuals use an OHLC or derivatives API. ## Authentication All requests require your oanor API key in the `x-oanor-key` header. Get one at https://www.oanor.com/developer/keys. ```bash curl -H "x-oanor-key: oanor_live_…" "https://api.oanor.com/ascendex-api/..." ``` ## Pricing - **Free** (Free) — 5,400 calls/Mo, 2 req/s - **Starter** ($9/Mo) — 97,500 calls/Mo, 6 req/s - **Pro** ($27/Mo) — 512,000 calls/Mo, 18 req/s - **Business** ($63/Mo) — 3,120,000 calls/Mo, 45 req/s ## Endpoints ### Market #### `GET /v1/book` — Live order-book depth **Parameters:** - `market` (query, required, string) — Market BASE/QUOTE or BASE_QUOTE Example: `BTC_USDT` - `limit` (query, optional, string) — Levels per side (default 20) Example: `20` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/ascendex-api/v1/book?market=BTC_USDT&limit=20" ``` **Response:** ```json { "data": { "asks": [ { "price": 62800, "amount": 0.01264 }, { "price": 62961.03, "amount": 0.00079 }, { "price": 62961.04, "amount": 0.14071 }, { "price": 62961.2, "amount": 0.10446 }, { "price": 62961.35, "amount": 0.00751 }, { "price": 62961.51, "amount": 0.00635 }, { "price": 62961.67, "amount": 0.00626 }, { "price": 62961.83, "amount": 0.00578 }, { "price": 62961.98, "amount": 0.13289 }, { "price": 62962.14, "amount": 0.01361 }, { "price": 62962.3, "amount": 0.0168 }, { "price": 62962.46, "amount": 0.00586 }, { "price": 62962.55, "amount": 0.03097 }, { "price": 62962.71, "amount": 0.04241 }, { "price": 62962.86, "amount": 0.00211 }, …(truncated, see openapi.json for full schema) ``` #### `GET /v1/markets` — Tradable pairs with tick/lot size and notional **Parameters:** - `quote` (query, optional, string) — Filter by quote currency Example: `USDT` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/ascendex-api/v1/markets?quote=USDT" ``` **Response:** ```json { "data": { "count": 988, "quote": "USDT", "source": "AscendEX", "markets": [ { "base": "ZETA", "quote": "USDT", "market": "ZETA/USDT", "status": "Normal", "max_qty": 1000000000, "min_qty": 1.0e-9, "lot_size": 1, "tick_size": 0.0001, "max_notional": 500000, "min_notional": 5 }, { "base": "GMX", "quote": "USDT", "market": "GMX/USDT", "status": "Normal", "max_qty": 1000000000, "min_qty": 1.0e-9, "lot_size": 0.01, "tick_size": 0.01, "max_notional": 500000, "min_notional": 5 }, { "base": "TURBO", "quote": "USDT", "market": "TURBO/USDT", "status": "Normal", "max_qty": 10000000000, "min_qty": 1.0e-9, "lot_size": 1, "tick_size": 1.0e-7, "max_notional": 500000, "min_notional": 5 }, { "base": "PEPE3L", "quote": "USDT", "market": "PEPE3L/USDT", "status": "Normal", "max_qty": 1000000000, "min_qty": 1.0e- …(truncated, see openapi.json for full schema) ``` #### `GET /v1/ticker` — Ticker for one market **Parameters:** - `market` (query, required, string) — Market BASE/QUOTE or BASE_QUOTE Example: `BTC_USDT` - `symbol` (query, optional, string) — Base coin (alternative to market) Example: `BTC` - `quote` (query, optional, string) — Quote currency for symbol Example: `USDT` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/ascendex-api/v1/ticker?market=BTC_USDT&symbol=BTC"e=USDT" ``` **Response:** ```json { "data": { "ask": 62800, "bid": 62459.26, "base": "BTC", "last": 62765.5, "quote": "USDT", "market": "BTC/USDT", "source": "AscendEX", "spread": 340.74, "low_24h": 60620.73, "high_24h": 63027.25, "open_24h": 61800.93, "change_24h_pct": 1.5608, "base_volume_24h": 9280.78137, "quote_volume_24h_approx": 582512883.08 }, "meta": { "timestamp": "2026-06-11T07:49:05.647Z", "request_id": "3c18676a-e7f2-4194-a6af-dd3bd7416f1d" }, "status": "ok", "message": "Ticker retrieved successfully", "success": true } ``` #### `GET /v1/tickers` — All spot markets for a quote by volume **Parameters:** - `quote` (query, optional, string) — Quote currency (default USDT) Example: `USDT` - `limit` (query, optional, string) — Max markets (default 50) Example: `50` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/ascendex-api/v1/tickers?quote=USDT&limit=50" ``` **Response:** ```json { "data": { "count": 50, "quote": "USDT", "source": "AscendEX", "tickers": [ { "ask": 62800, "bid": 62459.26, "base": "BTC", "last": 62765.5, "quote": "USDT", "market": "BTC/USDT", "spread": 340.74, "low_24h": 60620.73, "high_24h": 63027.25, "open_24h": 61800.93, "change_24h_pct": 1.5608, "base_volume_24h": 9280.78137, "quote_volume_24h_approx": 582512883.08 }, { "ask": 1664.14, "bid": 1644.25, "base": "ETH", "last": 1646.09, "quote": "USDT", "market": "ETH/USDT", "spread": 19.89, "low_24h": 1614, "high_24h": 1702, "open_24h": 1645.74, "change_24h_pct": 0.0213, "base_volume_24h": 290725.224, "quote_volume_24h_approx": 478559883.97 }, { "ask": 1.11783, "bid": 1.11106, "base": "XRP", "last": 1.11406, "quote": "USDT", "market": "XRP/USDT", "spread": 0.00677, "low_24h": 1.08692, "high_24h": 1.1396, "open_24h": 1.12077, …(truncated, see openapi.json for full schema) ``` ### Meta #### `GET /v1/meta` — Spec **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/ascendex-api/v1/meta" ``` **Response:** ```json { "data": { "note": "Markets are BASE/QUOTE (e.g. BTC/USDT); BTC_USDT is also accepted. The ticker reports base volume; quote_volume_24h_approx = base volume x last price.", "source": "AscendEX API (ascendex.com/api/pro/v1, live)", "service": "ascendex-api", "endpoints": { "GET /v1/book": "Live order-book depth — best bid/ask and spread (market=BTC_USDT, limit=20).", "GET /v1/meta": "This document.", "GET /v1/ticker": "Ticker for one market (market=BTC_USDT or symbol=BTC"e=USDT).", "GET /v1/markets": "Tradable pairs with tick/lot size and minimum notional (quote=USDT optional).", "GET /v1/tickers": "All spot markets for a quote ranked by 24h volume (quote=USDT, limit=50)." }, "description": "Live spot market data from AscendEX (formerly BitMax), a global crypto exchange. The ticker endpoint returns a market's last price, open, 24h high/low, 24h change, best bid/ask and volume; the tickers endpoint ranks every spot market for a quote currency by 24h volume; the markets endpoint lists tradable pairs with tick/lot size and minimum notional; the book endpoint returns live order-book depth. Live, no key, nothing stored. A distinct global venue, separate from other exchange feeds.", "market_count": 558, "upstream_status": "ok" }, "meta": { "timestamp": "2026-06-11T07:49:06.802Z", "request_id": "878e621e-13e4-4940-a3b3-ff8b6f80 …(truncated, see openapi.json for full schema) ``` --- Marketplace page: https://www.oanor.com/api/ascendex-api OpenAPI spec: https://www.oanor.com/api/ascendex-api/openapi.json