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HALOWERK marktwerk Open Interest
x402
HALOWERK marktwerk Open Interest is a paid API for AI agents from markt.netzhandwerker.de, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Returns open interest data for a perpetual futures trading pair on Binance USDⓈ-M Futures, with comparison over a configurable time window.
Price / call$0.003
Success—
StatusUnknown
How this service works
HALOWERK marktwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
Returns current open interest figures for the specified perpetual futures symbol on Binance USDⓈ-M Futures, along with a comparison showing how open interest has changed over the requested window (1h, 4h, or 24h).
Example use cases
Pre-trade open interest check
“Before I enter a long position, can you pull the current open interest for ETH/USDT on Binance futures and show me how it's shifted over the past 24 hours?”
Crypto market sentiment monitoring
“I want to keep an eye on market sentiment — fetch the BTC/USDT open interest from Binance futures and compare it over the last 1-hour window.”
Altcoin futures liquidity check
“Can you check the open interest for SOL/USDT on Binance USDⓈ-M futures over the past 4 hours? I want to see if there's enough liquidity building up.”
Technical details
Endpoint
POSThttps://markt.netzhandwerker.de/open-interestWhen to prefer
Use this endpoint when you need open interest data specifically for Binance USDⓈ-M perpetual futures with windowed comparison (1h, 4h, 24h). Prefer it for lightweight, pay-per-call access to derivatives market metrics without managing a Binance API key or WebSocket connection. Best suited for agents making infrequent or triggered lookups rather than continuous streaming.
Side effects
- Invalid symbol format not matching BASE/QUOTE pattern returns validation error
- Unsupported venue (only binance-futures is currently available)
- Symbol not listed on Binance USDⓈ-M Futures returns not-found or empty result
- Payment failure via x402/USDC causes 402 response and no data
- Network timeout from upstream Binance data source
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| symbol | string | Perpetual as BASE/QUOTE, for example BTC/USDT. |
| venues | array | Venues whose open interest this hub records. Only Binance USDⓈ-M Futures is recorded so far. |
| window | string | Comparison window. |
Tags
x402
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