# Services from markt.halowerk.com on Zero

> markt.halowerk.com serves 21 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/markt.halowerk.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/markt.halowerk.com/health.json

## Services

- [HALOWERK marktwerk Market Breadth](https://www.zero.xyz/c/halowerk-marktwerk-market-breadth-90ac9d7c/llms.txt): $0.004/call via x402. Computes crypto market breadth metrics (% above MA50, % above MA200, advance/decline) for a Binance spot USDT universe ranked by 24h turnover, excluding stablecoins, wrapped/staked tokens, and leveraged tokens.
- [HALOWERK marktwerk Cross-Exchange Price Comparison](https://www.zero.xyz/c/halowerk-marktwerk-cross-exchange-price-comparison-9fe0a6f2/llms.txt): $0.003/call via x402. Queries Binance, Coinbase, Kraken, OKX, and Bybit in parallel for a BASE/QUOTE trading pair, returning current prices and optional order-book depth across exchanges with staleness tracking.
- [HALOWERK marktwerk Slippage Simulator](https://www.zero.xyz/c/halowerk-marktwerk-slippage-simulator-3317fb95/llms.txt): $0.004/call via x402. Simulates order fill against live visible order books on Binance, Coinbase, Kraken, OKX, or Bybit, returning average fill price, worst price, and slippage metrics for a given side and size.
- [HALOWERK marktwerk Options Book Aggregator](https://www.zero.xyz/c/halowerk-marktwerk-options-book-aggregator-fec59f8a/llms.txt): $0.008/call via x402. Aggregates Deribit public options book data per expiry for BTC or ETH, providing ATM implied volatility, term structure, put/call ratios, open interest by strike, and max pain.
- [HALOWERK marktwerk Order Book](https://www.zero.xyz/c/halowerk-marktwerk-order-book-7426f032/llms.txt): $0.002/call via x402. Returns the live order book (bids and asks) for a BASE/QUOTE trading pair from Binance, Coinbase, Kraken, OKX, or Bybit, with depth statistics and optional price-band grouping
- [HALOWERK marktwerk Volume Anomaly Detector](https://www.zero.xyz/c/halowerk-marktwerk-volume-anomaly-detector-d99e87af/llms.txt): $0.003/call via x402. Detects statistically anomalous trading volumes by comparing the latest completed minute candle against a configurable historical baseline using robust median/MAD statistics
- [HALOWERK marktwerk Snapshot](https://www.zero.xyz/c/halowerk-marktwerk-snapshot-772dfeff/llms.txt): $0.001/call via x402. Returns a single consolidated price ticker for a BASE/QUOTE pair from Binance, Coinbase, Kraken, OKX, or Bybit, automatically selecting the venue with the highest 24h turnover when 'auto' is specified.
- [HALOWERK marktwerk Candles](https://www.zero.xyz/c/halowerk-marktwerk-candles-81bb506e/llms.txt): $0.001/call via x402. Returns OHLCV candle data (open, high, low, close, volume, trade count) for a trading pair from a specified exchange, with gap reporting and partial-candle flagging.
- [HALOWERK marktwerk – Perpetual Funding Rates](https://www.zero.xyz/c/halowerk-marktwerk-perpetual-funding-rates-4bff901b/llms.txt): $0.002/call via x402. Fetches current and predicted perpetual swap funding rates from Binance USDⓈ-M Futures, Bybit, and OKX for a given BASE/QUOTE pair, normalised to annualised percentages with settlement interval context.
- [HALOWERK marktwerk Market Regime Classifier](https://www.zero.xyz/c/halowerk-marktwerk-market-regime-classifier-43b29436/llms.txt): $0.003/call via x402. Computes realized volatility, trend strength, ATR, drawdown, and a rule-based market regime classification for a given trading pair and time horizon from self-recorded minute candles.
- [HALOWERK marktwerk Liquidations](https://www.zero.xyz/c/halowerk-marktwerk-liquidations-175e8fac/llms.txt): $0.004/call via x402. Aggregates and analyzes OKX perpetual swap liquidation orders, converting them to USD by contract size and bankruptcy price, and detects cascade liquidation events.
- [HALOWERK marktwerk – Deribit Dated Futures Basis Calculator](https://www.zero.xyz/c/halowerk-marktwerk-deribit-dated-futures-basis-calculator-bd1356d7/llms.txt): $0.004/call via x402. Fetches Deribit dated futures prices for BTC or ETH and computes the basis (spread) against a named spot price source, with annualization and cross-venue flagging.
- [Halowerk Market Hours](https://www.zero.xyz/c/halowerk-market-hours-4b73f8d6/llms.txt): $0.002/call via x402. Returns whether a regulated stock exchange's main session is currently open and when the next session starts, covering 10 major exchanges with holiday calendars for 2026–2027
- [HALOWERK marktwerk Arbitrage Spread Analyzer](https://www.zero.xyz/c/halowerk-marktwerk-arbitrage-spread-analyzer-8bd8edd9/llms.txt): $0.006/call via x402. Calculates net cross-exchange arbitrage spread for a trading pair by walking order books on both sides, accounting for taker fees, slippage, and transfer costs
- [HALOWERK marktwerk – Raw Trade Tape](https://www.zero.xyz/c/halowerk-marktwerk-raw-trade-tape-545131f1/llms.txt): $0.002/call via x402. Returns the raw public trade tape (time-and-sales) for a BASE/QUOTE pair from Binance, Coinbase, Kraken, OKX, or Bybit, with aggressor-side attribution exactly as each exchange reports it.
- [markt.halowerk.com Ethereum Gas Price Estimator](https://www.zero.xyz/c/markt-halowerk-com-ethereum-gas-price-estimator-f58b2e57/llms.txt): $0.003/call via x402. Returns current Ethereum gas fee estimates including base fee, recommended bid in gwei, and USD cost, using eth_feeHistory over the last 10 blocks with 25/50/75 percentile rewards.
- [HALOWERK marktwerk Stablecoin Peg Monitor](https://www.zero.xyz/c/halowerk-marktwerk-stablecoin-peg-monitor-e9912764/llms.txt): $0.003/call via x402. Quotes stablecoins against real USD on Kraken and Coinbase and against USDT on Binance/OKX/Bybit, computing median price and deviation in basis points to assess peg health and cross-venue agreement.
- [HALOWERK marktwerk Open Interest Change](https://www.zero.xyz/c/halowerk-marktwerk-open-interest-change-881ffd73/llms.txt): $0.003/call via x402. Compares current open interest on Binance USDⓈ-M Futures perpetuals against the value at the start of a configurable window, alongside price and volume changes, with a built-in interpretation rule.
- [HALOWERK marktwerk Order Book Imbalance](https://www.zero.xyz/c/halowerk-marktwerk-order-book-imbalance-04790a5e/llms.txt): $0.003/call via x402. Measures bid/ask volume imbalance within a configurable depth window around the mid price for a trading pair on a chosen exchange, classifying market pressure and detecting order book walls.
- [Halowerk Markt Token Price Lookup](https://www.zero.xyz/c/halowerk-markt-token-price-lookup-124f1577/llms.txt): $0.002/call via x402. Returns the USD price, decimals, symbol, and raw confidence score for a token identified by chain key plus contract address, or by a globally unambiguous symbol, with null passed through where the source omits confidence.
- [Halowerk Bridge Capital Flow Metrics](https://www.zero.xyz/c/halowerk-bridge-capital-flow-metrics-1bf74df9/llms.txt): $0.004/call via x402. Returns bridged capital metrics for a blockchain — including total bridged USD, canonical vs. external bridge inflows/outflows, and net capital movement into or out of the chain over a specified period.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

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