# Perp Derivatives Signals

Crypto perpetual futures funding, open interest, basis, liquidity and crowding signals.

## How to pay

Machine-payable over x402. USDC on: Base (eip155:8453), Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp), Polygon (eip155:137), Arbitrum One (eip155:42161).
No accounts. No API keys. No signup. The paying wallet is the account.

## Machine-readable

- OpenAPI: https://derivatives.x402tookit.com/openapi.json
- x402 manifest: https://derivatives.x402tookit.com/.well-known/x402
- Catalog (free): https://derivatives.x402tookit.com/catalog
- Health (free): https://derivatives.x402tookit.com/health
- Uptime (free): https://derivatives.x402tookit.com/uptime

## Endpoints (11)

### GET /funding-extremes — $0.02
Most extreme perp funding right now across Hyperliquid, filtered by open interest. Top crowded longs and shorts.
Params: n?: integer, min_oi_usd?: integer
Example: https://derivatives.x402tookit.com/funding-extremes?n=5

### GET /funding-history — $0.02
Funding persistence for a perp over the last 6-168 hours: average, sign streaks, and how unusual now is.
Params: coin: string, hours?: integer
Example: https://derivatives.x402tookit.com/funding-history?coin=BTC&hours=72

### GET /funding-spread — $0.02
Cross-venue funding gap for a perp: Hyperliquid vs Binance vs Bybit, normalized per hour and annualized.
Params: coin: string
Example: https://derivatives.x402tookit.com/funding-spread?coin=ETH

### GET /open-interest — $0.02
Perp open interest in USD, OI-to-volume ratio and rank on Hyperliquid. Flags leveraged build-up.
Params: coin: string
Example: https://derivatives.x402tookit.com/open-interest?coin=SOL

### GET /perp-basis — $0.02
Perp premium to oracle price for a coin on Hyperliquid, in percent, with a stretched/normal verdict.
Params: coin: string
Example: https://derivatives.x402tookit.com/perp-basis?coin=BTC

### GET /perp-funding — $0.02
Is perp funding crowded? Current Hyperliquid funding for a coin, annualized, with a crowded long/short verdict.
Params: coin: string
Example: https://derivatives.x402tookit.com/perp-funding?coin=BTC

### GET /perp-liquidity — $0.02
Perp order-book depth and market-order slippage for $10k and $100k on Hyperliquid, with a thin/deep verdict.
Params: coin: string
Example: https://derivatives.x402tookit.com/perp-liquidity?coin=ETH

### GET /perp-listing — $0.02
Is a coin a live Hyperliquid perp? Listed, delisted or isolated-only, with max leverage and size precision.
Params: coin: string
Example: https://derivatives.x402tookit.com/perp-listing?coin=BTC

### GET /perp-snapshot — $0.02
One-call perp snapshot on Hyperliquid: price, 24h move, funding, open interest, volume and max leverage with flags.
Params: coin: string
Example: https://derivatives.x402tookit.com/perp-snapshot?coin=BTC

### GET /perp-volatility — $0.02
Realized volatility for a perp from hourly candles over 24-168 hours, annualized, with a high/low verdict.
Params: coin: string, hours?: integer
Example: https://derivatives.x402tookit.com/perp-volatility?coin=SOL&hours=72

### GET /squeeze-watch — $0.02
Squeeze risk for a perp: funding, open interest build-up, 24h move and basis combined into a published points score.
Params: coin: string
Example: https://derivatives.x402tookit.com/squeeze-watch?coin=SOL

## Terms

Market signals computed from Hyperliquid public market data, provided as is, with no warranty of accuracy, timeliness or fitness for a purpose. Not financial, investment or trading advice, and not affiliated with Hyperliquid or any exchange. Funding, open interest and prices change every second; verify at the venue before acting.