APEX EVM Reads

Bulk wallet balances on Ethereum, Base, Arc or BNB Chain: up to 50 wallets in one call, native coin or one ERC20, read at one block via Multicall3. $0.005 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "addresses": {
      "type": "string",
      "description": "up to 50 wallet addresses, comma-separated"
    },
    "token": {
      "type": "string",
      "description": "optional ERC20 (0x...)"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "addresses"
  ]
}

Payment verification on Ethereum, Base, Arc or BNB Chain: did a transaction really pay an address, totals per token, whether a minimum was met, confirmations. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "hash": {
      "type": "string",
      "description": "transaction hash (0x + 64 hex)"
    },
    "to": {
      "type": "string",
      "description": "address that should have been paid"
    },
    "token": {
      "type": "string",
      "description": "count only this token (0x...)"
    },
    "min": {
      "type": "string",
      "description": "minimum in token units"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "hash",
    "to"
  ]
}

Sanctions check for a wallet on any chain: OFAC SDN listing from Treasury's official list (entry, programs, list date), plus USDC and USDT freeze status on chain for 0x addresses. A screen of public lists, not legal advice. $0.002 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "wallet address on any chain"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "address"
  ]
}

Token info and total supply for any ERC20 on Ethereum, Base, Arc or BNB Chain: name, symbol, decimals, total supply. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "ERC20 contract (0x...)"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "token"
  ]
}

ERC20 allowance on Ethereum, Base, Arc or BNB Chain: how much a spender may move from an owner, and whether it is unlimited. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "ERC20 contract (0x...)"
    },
    "owner": {
      "type": "string",
      "description": "wallet that approved (0x...)"
    },
    "spender": {
      "type": "string",
      "description": "contract allowed to spend (0x...)"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "token",
    "owner",
    "spender"
  ]
}

Wallet nonce on Ethereum, Base, Arc or BNB Chain: confirmed count, next nonce, pending transactions. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "wallet (0x...)"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "address"
  ]
}

Gas estimate before sending, on Ethereum, Base, Arc or BNB Chain: gas units, gas price, fee, or the revert reason. Nothing is sent. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "to": {
      "type": "string",
      "description": "recipient or contract (0x...)"
    },
    "from": {
      "type": "string",
      "description": "sender (0x...)"
    },
    "data": {
      "type": "string",
      "description": "hex calldata"
    },
    "value": {
      "type": "string",
      "description": "value in wei"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "to"
  ]
}

NFT owner and metadata link for an ERC721 token on Ethereum, Base, Arc or BNB Chain: owner, collection name and symbol, tokenURI. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "contract": {
      "type": "string",
      "description": "ERC721 contract (0x...)"
    },
    "id": {
      "type": "string",
      "description": "token id"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "contract",
    "id"
  ]
}

Currency exchange rate and conversion read on chain from Chainlink FX feeds on Ethereum: EUR, GBP, JPY, CHF, AUD, CAD, CNY, KRW, SGD, TRY, BRL, NZD, PHP, USD, gold (XAU) and silver (XAG); cross rates from two USD feeds. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "from": {
      "type": "string",
      "description": "3-letter code, e.g. EUR"
    },
    "to": {
      "type": "string",
      "description": "3-letter code, default USD"
    },
    "amount": {
      "type": "string",
      "description": "amount to convert, default 1"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "from"
  ]
}

Crypto token price in USD read on chain from Chainlink price feeds on Ethereum: up to 5 tickers per call (ETH, BTC, SOL, BNB, LINK...), each with feed address, round id and age. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "symbols": {
      "type": "string",
      "description": "one to five tickers, comma-separated, e.g. ETH,BTC"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "symbols"
  ]
}

ERC20 token balance of any wallet on Ethereum, Base, Arc or BNB Chain: raw balance, decimals, symbol and balance in token units, with the block read. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "wallet address (0x...)"
    },
    "token": {
      "type": "string",
      "description": "ERC20 token contract (0x...)"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "address",
    "token"
  ]
}

Wallet balance on Ethereum, Base, Arc or BNB Chain: native coin (ETH, BNB, or USDC on Arc), the chain USDC or up to 20 ERC20 tokens you list, nonce, and whether the address is a contract. $0.002 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "wallet address (0x...)"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "tokens": {
      "type": "string",
      "description": "optional: up to 20 ERC20 addresses, comma-separated"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "address"
  ]
}

Transaction status and receipt by hash on Ethereum, Base, Arc or BNB Chain: success or revert, from, to, value, contract created, gas used, fee paid, block and time. $0.002 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "hash": {
      "type": "string",
      "description": "transaction hash (0x + 64 hex)"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "hash"
  ]
}

ENS on Ethereum: a .eth name to its address, or an address to its primary ENS name, forward-verified so a reverse record pointing elsewhere is never returned. $0.002 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "description": "an ENS name such as vitalik.eth (pass name OR address)"
    },
    "address": {
      "type": "string",
      "description": "an address to look up its ENS name"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": []
}

Read-only contract call (eth_call) on Ethereum, Base, Arc or BNB Chain: returned bytes or the revert reason, at a named block. Nothing is signed or sent. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "to": {
      "type": "string",
      "description": "contract address (0x...)"
    },
    "data": {
      "type": "string",
      "description": "hex calldata: 4-byte selector plus ABI-encoded arguments"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "from": {
      "type": "string",
      "description": "optional caller address"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "to",
    "data"
  ]
}

Latest block and gas price on Ethereum, Base, Arc or BNB Chain: block number, time and age in seconds, gas price and base fee in gwei, transaction count, chain id. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": []
}

Is this address a contract, on Ethereum, Base, Arc or BNB Chain: code size, the implementation behind an EIP-1967 or ZeppelinOS proxy, and an EIP-7702 delegation. $0.001 per call over x402 (USDC on Arc, Base or Solana, or XNT on X1). Call once without `payment` for the terms, sign them with your own wallet, call again with `payment`.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "address (0x...)"
    },
    "chain": {
      "type": "string",
      "description": "ethereum (default), base, arc or bnb"
    },
    "payment": {
      "type": "string",
      "description": "a signed x402 payment (the base64 payload you would put in PAYMENT-SIGNATURE). Pass it and the purchase completes inside this tool call."
    }
  },
  "required": [
    "address"
  ]
}