# CryptoPulse Perpetual Funding Rate History

> CryptoPulse Perpetual Funding Rate History is a paid API for AI agents from cryptopulse.theaslangroupllc.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns point-in-time historical hourly funding rate data for perpetual futures on Hyperliquid, covering up to 90 days per call with per-row settlement timestamps and availability markers for accurate backtesting.

## Facts

- Endpoint: GET https://cryptopulse.theaslangroupllc.com/api/funding-history
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cryptopulse-perpetual-funding-rate-history-ab74d6bd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eDyvS6I1sZ1JTHKSL-D1-

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

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cryptopulse-perpetual-funding-rate-history-ab74d6bd
```

Example prompt: Pull the hourly Hyperliquid funding rate history for BTC over the last 60 days — I need the settlement time, hourly rate, annualized percent, premium, and available_at per row so I can backtest a funding arbitrage strategy without lookahead bias.

## When to prefer this

Choose this endpoint when you need point-in-time honest historical funding rate data for perpetual futures on Hyperliquid — especially for backtesting trading strategies, auditing past funding payments, or analyzing funding rate trends over days to months. Prefer this over a real-time funding endpoint when you need historical windows rather than current rates, and over generic crypto data APIs when you specifically need Hyperliquid perp funding with lookahead-safe available_at timestamps.

## Known failure modes

- Unknown or unsupported coin symbol returns an error or empty dataset
- Requested date range exceeds 90-day maximum window per call
- Future dates or dates beyond the available history (~1 year) return no data
- Malformed date/time parameters cause a 400 bad request
- Network or upstream Hyperliquid data unavailability causes a 503 or timeout
- Payment not processed correctly results in a 402 response

## How this service works

Perp funding-rate HISTORY, deterministic and lookahead-safe. Answers "what was funding for this coin over the last N days", "backtest my strategy against real funding". Hourly Hyperliquid funding rows for up to 90 days per call (windows anchor anywhere in a year+ of history): settlement time, hourly rate, annualized percent, premium, and an available_at timestamp per row so recorded history is point-in-time honest. Summary stats included. Keyless public data, no LLM.

## Output

An array of hourly funding rate rows for the requested coin and date window, each containing: settlement timestamp, hourly funding rate, annualized funding rate percentage, premium, and an available_at timestamp (enabling point-in-time honest backtesting). Also includes summary statistics over the requested period such as average, min, and max rates.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "coin"
 ],
 "properties": {
  "end": {
   "type": "string",
   "description": "ISO date anchoring the window end (default now) — walk backward for longer history"
  },
  "coin": {
   "type": "string",
   "description": "Hyperliquid perp symbol, e.g. BTC, ETH, SOL"
  },
  "days": {
   "type": "number",
   "description": "window length in days (default 7, max 90 per call)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "coin": "ETH",
  "rows": 168,
  "history": [
   {
    "time": "2026-07-14T05:00:00.000Z",
    "rate_hourly": 0.0000125,
    "available_at": "2026-07-14T05:00:00.000Z",
    "rate_annualized_pct": 10.95
   }
  ],
  "summary": {
   "max_annualized_pct": 38.1,
   "min_annualized_pct": -4.2,
   "mean_annualized_pct": 10.9
  },
  "deterministic": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cryptopulse-perpetual-funding-rate-history-ab74d6bd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptopulse.theaslangroupllc.com](https://www.zero.xyz/host/cryptopulse.theaslangroupllc.com/llms.txt)