# PerpRadar Funding Rate Scanner

> PerpRadar Funding Rate Scanner is a paid API for AI agents from api.youraitools.co, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-23).

Scans perpetual futures markets across decentralized venues (dYdX, Hyperliquid, Paradex) for funding rates, open interest, and cross-venue spreads to identify funding arbitrage and positioning signals.

## Facts

- Endpoint: GET https://api.youraitools.co/perpradar/v1/scan?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/perpradar-funding-rate-scanner-2bf90588
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kjlloQNSDkHs2zdR74ZBb

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 perpradar-funding-rate-scanner-2bf90588
```

Example prompt: Scan all perp markets above $1M open interest using PerpRadar and show me the top 10 assets with the widest funding rate spreads across venues and the most negative funding rates right now.

## When to prefer this

Choose PerpRadar when you need real-time cross-venue perpetual futures funding rate data from decentralized venues (dYdX, Hyperliquid, Paradex) specifically. It is purpose-built for funding rate arbitrage discovery and positioning analysis, unlike generic crypto price APIs that don't provide cross-venue funding comparison or open-interest-weighted signals.

## Known failure modes

- One or more venues may fail to respond (listed in sources_failed), reducing cross-venue spread calculations
- symbols parameter with invalid tickers returns empty or partial results
- universe=all with very low min_oi_usd may time out or return too many assets
- Neither symbols nor universe=all provided results in a validation error
- Rate limits or payment failures return 402 or 429 errors

## How this service works

Crypto funding rate scanner API (perpetual futures). Cross-venue perp funding scan over Hyperliquid, dYdX v4 and Paradex: pass a watchlist (symbols=BTC,ETH,SOL, up to 25) or universe=all (every market above min_oi_usd, default $1M). Returns the highest and lowest funding (APR), the widest cross-venue funding spreads, the market-wide OI-weighted funding and share of markets with positive funding, with a per-asset positioning label. Fail-closed. Not financial advice.

## Output

Returns a JSON object with overall market sentiment (read, positive_funding_share_pct, OI-weighted funding APR), a list of assets with lowest (most negative) funding rates per venue, a list of assets with the widest cross-venue funding rate spreads, venue availability status, scan mode, confidence level, and a disclaimer. Each asset entry includes per-venue funding rate (8h and APR), open interest in USD, premium percentage, and positioning label (crowded_short, long_bias, neutral).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "limit": {
       "type": "integer",
       "description": "Rows per list, 1-25 (default 10)"
      },
      "symbols": {
       "type": "string",
       "description": "Comma-separated tickers (max 25), e.g. BTC,ETH,SOL. Either symbols or universe=all is required."
      },
      "universe": {
       "enum": [
        "all"
       ],
       "type": "string",
       "description": "all = scan every market above min_oi_usd"
      },
      "min_oi_usd": {
       "type": "number",
       "description": "Universe mode: minimum open interest in USD per venue market (default 1000000)"
      }
     },
     "description": "Search intents: funding rate scanner, highest funding rates, funding arbitrage scanner, perp market scan, negative funding coins, cross exchange funding"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "mode": "universe",
  "tier": "scan",
  "assets": 118,
  "market": {
   "read": "neutral",
   "positive_funding_share_pct": 86,
   "oi_weighted_funding_apr_pct": 9.539
  },
  "filters": {
   "min_oi_usd": 1000000
  },
  "venues_ok": [
   "dydx",
   "hyperliquid",
   "paradex"
  ],
  "checked_at": "2026-10-22T18:52:56.514Z",
  "confidence": "high",
  "disclaimer": "Not financial advice. Past performance does not guarantee future results. Read-only market analytics from public venue data at the time of the request; funding rates change every hour and can reverse. PerpRadar never trades, holds funds or keys.",
  "lowest_funding": [
   {
    "symbol": "ALT",
    "venues": [
     {
      "venue": "hyperliquid",
      "premium_pct": -2.2973,
      "funding_8h_pct": -2.21086,
      "funding_apr_pct": -2420.89,
      "open_interest_usd": 1809419
     }
    ],
    "positioning": "crowded_short",
    "oi_usd_total": 1809419,
    "single_venue": true,
    "median_apr_pct": -2420.89,
    "spread_apr_pct": null
   },
   {
    "symbol": "ADA",
    "venues": [
     {
      "venue": "hyperliquid",
      "premium_pct": -0.0915,
      "funding_8h_pct": -0.06753,
      "funding_apr_pct": -73.947,
      "open_interest_usd": 30379619
     }
    ],
    "positioning": "crowded_short",
    "oi_usd_total": 30379619,
    "single_venue": true,
    "median_apr_pct": -73.947,
    "spread_apr_pct": null
   }
  ],
  "sources_failed": [],
  "widest_spreads": [
   {
    "symbol": "ETH",
    "venues": [
     {
      "venue": "hyperliquid",
      "premium_pct": -0.044,
      "funding_8h_pct": 0.00667,
      "funding_apr_pct": 7.303,
      "open_interest_usd": 2644352825
     },
     {
      "venue": "dydx",
      "premium_pct": null,
      "funding_8h_pct": -0.01301,
      "funding_apr_pct": -14.247,
      "open_interest_usd": 16956449
     },
     {
      "venue": "paradex",
      "premium_pct": 0.0326,
      "funding_8h_pct": 0.00554,
      "funding_apr_pct": 6.072,
      "open_interest_usd": 3010469
     }
    ],
    "positioning": "neutral",
    "oi_usd_total": 2664319743,
    "single_venue": false,
    "median_apr_pct": 6.072,
    "spread_apr_pct": 21.55
   },
   {
    "symbol": "SOL",
    "venues": [
     {
      "venue": "hyperliquid",
      "premium_pct": -0.0527,
      "funding_8h_pct": 0.00923,
      "funding_apr_pct": 10.104,
      "open_interest_usd": 576024148
     },
     {
      "venue": "dydx",
      "premium_pct": null,
      "funding_8h_p
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/perpradar-funding-rate-scanner-2bf90588/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.youraitools.co](https://www.zero.xyz/host/api.youraitools.co/llms.txt)