Onchain Query API | Apiosk Gateway

Base URL

https://gateway.apiosk.com/cbz-chain-cyberwarex-com

Technical Specs

Auth MethodNone (x402 payment proof only)

Response FormatJSON

Endpoints3

Endpoints

Method	Path	Description	Cost
GET	/block	Latest block on any major EVM chain: block number, timestamp, age in seconds, base fee and gas used/limit. The cheapest possible liveness and chain-tip check for an agent: confirm a chain is progressing, timestamp an observation, or pick a block for a query.	$0.0011 default	View details
GET	/derivatives	Crypto perpetual-futures snapshot for a symbol in ONE call (Binance USD-M, keyless): current funding rate and the next funding time, mark and index price, open interest (contracts and USD), 24h price change/high/low/volume, and the top-trader long/short account ratio. For funding arbitrage, leverage/positioning reads, and a derivatives view an onchain-only feed cannot give. Cached 30s.	$0.0057 default	View details
GET	/token	ERC-20 token profile on any major EVM chain: on-chain metadata (name, symbol, decimals, total supply) read straight from the contract, joined with live DEX market data (USD price, liquidity, 24h volume, 24h change, and the top trading pair with its DEX). Use it to price a token, check liquidity depth before a swap, or resolve an unknown contract address into a real token.	$0.0046 default	View details

Endpoint documentation

GET/block

$0.0011 default

Description

Latest block on any major EVM chain: block number, timestamp, age in seconds, base fee and gas used/limit. The cheapest possible liveness and chain-tip check for an agent: confirm a chain is progressing, timestamp an observation, or pick a block for a query.

Pricing

$0.0011 default

Parameters

{
  "additionalProperties": false,
  "properties": {
    "chain": {
      "default": "base",
      "description": "EVM chain to query.",
      "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "optimism",
        "polygon"
      ],
      "type": "string"
    }
  },
  "type": "object"
}

Example response

{
  "age_seconds": 3,
  "base_fee_gwei": 0.0061,
  "chain": "base",
  "chain_id": 8453,
  "gas_limit": 150000000,
  "gas_used": 18234012,
  "hash": "0x9a1c…",
  "number": 51142663,
  "timestamp": 1789081234,
  "tx_count": 212
}

GET/derivatives

$0.0057 default

Description

Crypto perpetual-futures snapshot for a symbol in ONE call (Binance USD-M, keyless): current funding rate and the next funding time, mark and index price, open interest (contracts and USD), 24h price change/high/low/volume, and the top-trader long/short account ratio. For funding arbitrage, leverage/positioning reads, and a derivatives view an onchain-only feed cannot give. Cached 30s.

Pricing

$0.0057 default

Parameters

{
  "additionalProperties": false,
  "properties": {
    "symbol": {
      "description": "Asset ticker (BTC, ETH, SOL...) or a full perp symbol like BTCUSDT.",
      "type": "string"
    }
  },
  "required": [
    "symbol"
  ],
  "type": "object"
}

Example response

{
  "funding_rate": 0.00006,
  "funding_rate_annualized_pct": 6.57,
  "high_24h": 79000,
  "index_price": 78700.1,
  "long_short_ratio": 1.8,
  "low_24h": 77000,
  "mark_price": 78726.5,
  "next_funding_time": 1789142400000,
  "open_interest": 104466.34,
  "open_interest_usd": 8220000000,
  "perp": "BTCUSDT",
  "price_change_24h_pct": 1.75,
  "source": "binance-futures",
  "symbol": "BTC",
  "volume_24h": 180434.2
}

GET/token

$0.0046 default

Description

ERC-20 token profile on any major EVM chain: on-chain metadata (name, symbol, decimals, total supply) read straight from the contract, joined with live DEX market data (USD price, liquidity, 24h volume, 24h change, and the top trading pair with its DEX). Use it to price a token, check liquidity depth before a swap, or resolve an unknown contract address into a real token.

Pricing

$0.0046 default

Parameters

{
  "additionalProperties": false,
  "properties": {
    "address": {
      "description": "ERC-20 token contract address.",
      "pattern": "^0x[a-fA-F0-9]{40}$",
      "type": "string"
    },
    "chain": {
      "default": "base",
      "description": "EVM chain to query.",
      "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "optimism",
        "polygon"
      ],
      "type": "string"
    }
  },
  "required": [
    "address"
  ],
  "type": "object"
}

Example response

{
  "address": "0x4200000000000000000000000000000000000006",
  "chain": "base",
  "decimals": 18,
  "market": {
    "change_24h_pct": -1.87,
    "liquidity_usd": 41283910.5,
    "source": "dexscreener",
    "top_pair": {
      "base": "WETH",
      "chain": "base",
      "dex": "aerodrome",
      "quote": "USDC"
    },
    "usd": 3194.51,
    "volume_24h_usd": 88214003.1
  },
  "name": "Wrapped Ether",
  "symbol": "WETH",
  "total_supply": 121843.512,
  "total_supply_raw": "121843512000000000000000"
}