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SYNTHORA Open Interest
x402
SYNTHORA Open Interest is a paid API for AI agents from crypto-derivatives-oi.hergertsynthora.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns real-time open interest and open interest change for a specified Binance futures symbol, sourced live from Binance FAPI.
Price / call$0.001
Success—
StatusUnknown
How this service works
Real-time open interest and OI change for any Binance futures symbol. Positioning signal for derivatives agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.
Output
A JSON object containing the query timestamp (Unix ms), the requested symbol, and the current open interest value as a numeric string (e.g. 103679.944 contracts). Sourced directly from Binance Futures REST API in real time.
Example use cases
BTC futures positioning check
“Pull the real-time open interest for BTCUSDT futures so I can see how much derivatives exposure is currently in the market.”
Altcoin OI spike detection
“What's the current open interest on SOLUSDT Binance futures? I want to know if OI has been building up lately.”
Multi-symbol derivatives dashboard
“Fetch the latest open interest figures for ETHUSDT on Binance futures — I'm tracking positioning across several perp markets.”
Technical details
Endpoint
POSThttps://crypto-derivatives-oi.hergertsynthora.com/serviceWhen to prefer
Choose this endpoint when you need real-time open interest data for Binance futures symbols specifically, especially in a cost-efficient micropayment context via x402. It is ideal for derivatives-focused agents that need a fast, single-symbol OI lookup without managing direct Binance API credentials.
Side effects
- Invalid or unsupported symbol returns an error or empty result
- Binance API downtime or rate limiting may cause failures
- Malformed request body missing the symbol field
- Payment failure via x402 protocol prevents execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| symbol | string | symbol |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "crypto-derivatives-oi",
"result": {
"time": 1783774469314,
"symbol": "BTCUSDT",
"open_interest": "103679.944"
},
"provenance": {
"url": "https://fapi.binance.com/fapi/v1/openInterest",
"source": "SYNTHORA Open Interest"
}
}
}Tags
x402
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