# Hyperliquid Perpetual Funding Rate Lookup

> Hyperliquid Perpetual Funding Rate Lookup is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Returns current and annualized funding rates, mark/oracle prices, open interest, 24h volume, premium, and cross-venue funding comparison (Hyperliquid, Binance, Bybit) for a given perpetual futures coin.

## Facts

- Endpoint: POST https://x402-services-production.up.railway.app/api/perps/funding
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hyperliquid-perpetual-funding-rate-lookup-17cea91c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mVPdGXO5LLrQxwkU7H82R

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 hyperliquid-perpetual-funding-rate-lookup-17cea91c -d '<json body>'
```

Example prompt: What's the current funding rate for BTC perps on Hyperliquid right now — including the annualized APR and how it compares to Binance and Bybit?

## When to prefer this

Use this endpoint when you need detailed perpetual futures funding rate data for a specific coin, especially when cross-venue comparison across Hyperliquid, Binance, and Bybit is needed. Prefer this over the funding extremes or full market scan endpoints when you already know the coin and want granular per-coin data including mark/oracle spread and OI.

## Known failure modes

- Unknown or unsupported coin symbol returns an error or empty result
- Hyperliquid API downtime may cause stale or missing data
- Malformed coin symbol (e.g. lowercase or with suffix) may not be recognized
- Cross-venue data (Binance/Bybit) may be unavailable if those feeds are down
- Rate limiting or payment failure returns 402 Payment Required

## How this service works

Perpetual funding rate for a coin on Hyperliquid: current hourly rate, annualized APR, mark & spot-oracle price, open interest, 24h volume, premium, plus cross-venue funding (Hyperliquid/Binance/Bybit). Send { coin }. Core signal for perp traders and funding-rate strategies.

## Output

Returns a structured object with the current hourly funding rate, annualized APR, mark price, spot oracle price, open interest, 24h volume, premium, and funding rates from Hyperliquid, Binance, and Bybit for cross-venue comparison on the requested coin.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "coin"
 ],
 "properties": {
  "coin": {
   "type": "string",
   "description": "Perp symbol, e.g. BTC, ETH, SOL"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hyperliquid-perpetual-funding-rate-lookup-17cea91c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-services-production.up.railway.app](https://www.zero.xyz/host/x402-services-production.up.railway.app/llms.txt)