curl --request POST \
  --url https://api.iotools.cloud/v1/tool/ethereum-checksum-validator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "addresses": "0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed\n0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359\n0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB\n0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb"
}
'

{
  "tool": "ethereum-checksum-validator",
  "tool_version": "1.0.1",
  "outputs": {
    "resultsTable": [
      {
        "input": "0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed",
        "status": "Valid checksum",
        "checksummed-eip-55": "0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed",
        "notes": "Mixed case matches EIP-55 expected encoding"
      },
      {
        "input": "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359",
        "status": "Valid checksum",
        "checksummed-eip-55": "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359",
        "notes": "Mixed case matches EIP-55 expected encoding"
      },
      {
        "input": "0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB",
        "status": "Valid checksum",
        "checksummed-eip-55": "0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB",
        "notes": "Mixed case matches EIP-55 expected encoding"
      },
      {
        "input": "0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb",
        "status": "Valid checksum",
        "checksummed-eip-55": "0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb",
        "notes": "Mixed case matches EIP-55 expected encoding"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}