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Carbon & Cashmere Open Interest History API – BTC
x402
Carbon & Cashmere Open Interest History API – BTC is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).
Returns historical open interest data for Bitcoin across exchanges, including daily series and aggregate stats like change percent and total USD value.
Price / call$0.02
Success—
StatusDown
How this service works
Professional crypto market intelligence. Real-time prices, signals, and market scoring.
Output
A JSON object containing the coin symbol (BTC), the number of days in the window, aggregate stats (change_pct, current_total_usd), and a daily time series array with timestamps, total OI in USD, and per-exchange OI (e.g. Binance) for each day.
Example use cases
Track BTC derivatives market trend
“Can you pull the Bitcoin open interest data for the past two weeks and tell me if OI has been rising or falling? I want to know the percent change and where we stand today in total USD.”
Compare BTC open interest across exchanges
“Show me the daily Bitcoin open interest breakdown by exchange over the last 7 days — I want to see how Binance stacks up against the aggregate total and whether any single venue is driving the move.”
Spot overleveraged Bitcoin futures conditions
“I'm trying to gauge whether the Bitcoin futures market looks overleveraged right now. Grab the recent open interest history and flag if OI in USD has spiked significantly compared to earlier in the window.”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/history/oi/BTCWhen to prefer
Use this endpoint when you need historical open interest data specifically for Bitcoin across multiple exchanges, with per-exchange breakdowns (e.g. Binance) and aggregate stats. Prefer this over generic market data APIs when you need crypto-native OI analytics with a professional signal focus and time-series granularity.
Side effects
- Invalid coin symbol returns error or empty result
- Unsupported time window may return partial or no series data
- Payment failure (x402) blocks the response if USDC payment is not processed
- Network or upstream data provider outage results in 5xx error
- Missing or malformed query parameters may return a 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"coin": "BTC",
"days": 7,
"stats": {
"change_pct": 2.1,
"current_total_usd": 111000000000
},
"series": [
{
"ts": "2026-04-11T00:00:00Z",
"total_oi_usd": 108500000000,
"binance_oi_usd": 52000000000
}
]
}
}Tags
x402
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