# Vextorium Funding Rate Comparator

> Vextorium Funding Rate Comparator is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).

Compares perpetual funding rates across Hyperliquid, dYdX, Paradex, and Aevo normalized to 1h, 8h, and annualized APR, and surfaces cross-exchange funding arbitrage spreads.

## Facts

- Endpoint: POST https://api.vextorium.com/funding-comparar-pago?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-funding-rate-comparator-13ebb889
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aBk-EkqQd7xGmMC2Oueo0

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 vextorium-funding-rate-comparator-13ebb889 -d '<json body>'
```

Example prompt: Compare the perpetual funding rates for BTC across Hyperliquid, dYdX, Paradex, and Aevo — show me the 1h, 8h, and annualized rates and tell me if there's a good long/short spread to exploit.

## When to prefer this

Choose this endpoint when you need real-time, normalized perpetual funding rate comparisons across Hyperliquid, dYdX, Paradex, and Aevo in a single call. It is ideal for funding arbitrage discovery (delta-neutral carry trades), pre-trade cost analysis (which venue is cheapest to hold a position), or monitoring funding rate divergence across major perp venues. Prefer this over manually querying individual exchange APIs when you need cross-venue normalization to a common time base (1h/8h/APR).

## Known failure modes

- Coin symbol not found on any supported exchange — returns empty or null exchange list
- Exchange API temporarily unavailable — partial results with missing venue data
- Invalid coin ticker format — malformed input leads to empty response
- Rate data stale if upstream exchange feeds lag — timestamps may reflect slightly delayed rates

## How this service works

Perpetual funding rates on Hyperliquid, dYdX, Paradex and Aevo normalized to 1h, 8h and annualized APR. For one coin it compares venues and the long/short spread; without a coin it lists the biggest cross-exchange funding spreads (funding arbitrage).

## Output

Returns a list of exchanges with their current funding rates for the requested coin (1h %, 8h %, annualized APR %, price, open interest in USD), plus a strategy note and the annualized spread between the highest and lowest venues. When no coin is specified, returns a ranked list of coins with the largest cross-exchange funding spreads for arbitrage identification.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [],
     "properties": {
      "limite": {
       "type": "integer"
      },
      "moneda": {
       "type": "string",
       "description": "BTC, ETH, SOL... (omit to scan spreads)"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": [
      "object",
      "null"
     ],
     "properties": {
      "nota": {
       "type": [
        "string",
        "null"
       ]
      },
      "moneda": {
       "type": [
        "string",
        "null"
       ]
      },
      "exchanges": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": [
         "null",
         "object"
        ],
        "properties": {
         "precio": {
          "type": [
           "null",
           "number"
          ]
         },
         "exchange": {
          "type": [
           "null",
           "string"
          ]
         },
         "anual_pct": {
          "type": [
           "null",
           "number"
          ]
         },
         "tasa_1h_pct": {
          "type": [
           "null",
           "number"
          ]
         },
         "tasa_8h_pct": {
          "type": [
           "null",
           "number"
          ]
         },
         "interes_abierto_usd": {
          "type": [
           "null",
           "number"
          ]
         }
        }
       }
      },
      "sin_datos": {},
      "estrategia": {
       "type": [
        "string",
        "null"
       ]
      },
      "diferencia_anual_pct": {
       "type": [
        "number",
        "null"
       ]
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-funding-rate-comparator-13ebb889/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)