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Carbon & Cashmere Funding Rate History – ETH
x402
Carbon & Cashmere Funding Rate History – ETH is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status down (last checked 2026-09-14).
Returns historical funding rate data for Ethereum (ETH), including statistical summaries and time-series samples over a configurable lookback window.
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 a summary stats block (sample count, average rate, max rate, min rate, current rate) and a time-series array of funding rate observations with timestamps, raw rates, and annualized percentages for each 8-hour interval over the requested lookback window.
Example use cases
Spot ETH funding rate trend
“Can you grab the ETH funding rate data for the past two weeks and tell me whether it's been trending positive or negative? I want to know if the market has been persistently long-biased lately.”
Compare average vs current rate
“Pull the last 30 days of ETH perpetual funding rate history and compare the average rate to what's happening right now — I'm trying to figure out if current conditions are unusually expensive for longs.”
Identify ETH funding rate extremes
“I need you to look at ETH funding rate data over the past 60 days and flag the highest and lowest rates recorded — I want to understand how extreme the swings have been and whether there were any notable spikes.”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/history/funding/ETHWhen to prefer
Use this endpoint when you need detailed historical funding rate data specifically for ETH perpetual futures, including statistical aggregates and a granular time series. Prefer this over generic market data APIs when you need funding rate analytics (not just price), and when you need annualized rate context alongside raw 8-hour interval data.
Side effects
- Invalid or unsupported symbol returns an error response
- Insufficient lookback period or missing days parameter returns default or error
- Payment not included or insufficient USDC balance results in 402 Payment Required
- Rate limiting if too many calls in quick succession
- Stale data if upstream exchange feed is delayed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"days": 30,
"stats": {
"samples": 90,
"avg_rate": 0.00008,
"max_rate": 0.0003,
"min_rate": -0.0002,
"current_rate": 0.0001
},
"series": [
{
"ts": "2026-04-01T00:00:00Z",
"rate": 0.0001,
"annualized_pct": 10.95
}
],
"symbol": "BTCUSDT",
"interval": "8h"
}
}Tags
x402
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