markt.halowerk.com publishes 21 machine-payable endpoints over the x402 protocol, priced from $0.001 to $0.008 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /anomaly/volume | GET | $0.003 | 402 |
| /arbitrage | GET | $0.006 | 402 |
| /basis | GET | $0.004 | 402 |
| /breadth | GET | $0.004 | 402 |
| /bridge | GET | $0.004 | 402 |
| /candles | GET | $0.001 | 402 |
| /cross-exchange | GET | $0.003 | 402 |
| /funding | GET | $0.002 | 402 |
| /gas | GET | $0.003 | 402 |
| /hours | GET | $0.002 | 402 |
| /liquidations | GET | $0.004 | 402 |
| /open-interest | GET | $0.003 | 402 |
| /options | GET | $0.008 | 402 |
| /orderbook | GET | $0.002 | 402 |
| /orderbook/imbalance | GET | $0.003 | 402 |
| /peg | GET | $0.003 | 402 |
| /regime | GET | $0.003 | 402 |
| /slippage | GET | $0.004 | 402 |
| /snapshot | GET | $0.001 | 402 |
| /token | GET | $0.002 | 402 |
| /trades | GET | $0.002 | 402 |
Compares the volume of the most recent completed minute candle with the distribution of minute volumes over the chosen lookback, taken from the history this hub records itself every minute. Median and…
Walks the visible book of every requested exchange for the given size, in both directions, and works out what remains of the raw spread: gross_spread_bps from top of book, then the taker fee of the en…
Reads the dated futures of Deribit for BTC or ETH and compares each expiry with a spot price whose source is always named in the answer, because a basis computed against a different venue than the fut…
Builds the universe from the Binance spot USDT pairs ranked by 24 hour turnover and states that criterion in universe_source, because a breadth number without its universe is meaningless. Stablecoins,…
Measures how much bridged capital sits on a chain and how that changed. bridged_usd is the sum of canonical and external value: what came in over the canonical bridge of the chain plus what third part…
Returns open, high, low, close, volume and, where the exchange reports it, the trade count per candle. Timestamps are always the opening time of the candle in UTC milliseconds. The last candle is usua…
Queries Binance, Coinbase, Kraken, OKX and Bybit in parallel for one BASE/QUOTE pair, four seconds per exchange. An exchange that does not answer drops out with a stated reason and the call stays vali…
Reads the public perpetual data of Binance USDⓈ-M Futures, Bybit linear and OKX swaps for one BASE/QUOTE pair. Settlement intervals differ per exchange and per contract, so annualized_pct is only comp…
Reads eth_feeHistory over the last ten blocks with reward percentiles 25, 50 and 75, and falls back to eth_gasPrice when a node does not serve fee history. base_fee_gwei is the base fee of the next bl…
Answers the timing question an agent has before it schedules anything against a regulated exchange: is the main session running, and if not, when does it start. Covers XETR, XFRA, XNYS, XNAS, XLON, XP…
Reads the liquidation orders OKX publishes for its perpetual swaps, converts every entry into US dollars with the contract size of that instrument and the bankruptcy price of that event, and sums them…
Compares the open interest recorded now with the value this hub recorded itself at the start of the window, so both numbers come from the same source and the same basis. Notional value is always taken…
Reads the public option book summaries of Deribit and aggregates them per expiry. iv_atm is the mark implied volatility of the strike closest to the forward, averaged over call and put, and the strike…
Returns the visible order book of Binance, Coinbase, Kraken, OKX or Bybit for one BASE/QUOTE pair. Levels come as [price, size] with bids descending and asks ascending. depth[] states how much turnove…
Reads the visible order book of one exchange and measures how bid and ask volume sit inside a window of depth_pct around the mid. imbalance runs from -1 (only asks) to +1 (only bids) and is computed o…
Quotes each stablecoin against real US dollars on Kraken and Coinbase and, separately, against USDT on Binance, OKX and Bybit. Only the dollar quotes enter median_price and deviation_bps, because a US…
Measures the state of one pair over the chosen horizon from the minute candles this hub records itself: annualized realized volatility from log returns, trend strength as path efficiency between -1 an…
Takes side, size and size_unit and simulates the fill against the visible book of Binance, Coinbase, Kraken, OKX or Bybit. avg_price is the size weighted fill price, worst_price the last level touched…
Returns one consolidated ticker for a BASE/QUOTE pair from Binance, Coinbase, Kraken, OKX or Bybit. With venue "auto" the exchange with the highest 24h turnover for that pair is used and named in the …
Takes a chain key and a contract address, or one of a short list of globally unambiguous symbols. A symbol that is not on that list is refused with 400 and a pointer to the address rather than resolve…
Returns the raw public trade tape of Binance, Coinbase, Kraken, OKX or Bybit for one BASE/QUOTE pair, oldest first, exactly as the exchange reports it — no smoothing, no merging of prints. side is the…