Accounts

qc_accounts

Returns the list of addresses managed by the node (unlocked accounts).

curl -X POST https://api.quantumapi.io/v1/rpc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"qc_accounts","params":[],"id":1}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": ["0xff81e5c74e14db5b4ee407d66b1b063c8f305c51"]
}

qc_getBalance

Returns the balance of an address in wei.

Parameter	Type	Description
`address`	`string`	20-byte address (hex)
`blockNumber`	`string`	Block number (hex) or tag

curl -X POST https://api.quantumapi.io/v1/rpc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"qc_getBalance","params":["0xff81e5c74e14db5b4ee407d66b1b063c8f305c51","latest"],"id":1}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x56bc75e2d63100000"
}

Convert wei to QUANTUM: divide by 10^18. The result above is 100 QUANTUM.

qc_getCode

Returns the contract bytecode at a given address. Returns 0x for externally owned accounts.

Parameter	Type	Description
`address`	`string`	20-byte address (hex)
`blockNumber`	`string`	Block number (hex) or tag

curl -X POST https://api.quantumapi.io/v1/rpc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"qc_getCode","params":["0x1234567890abcdef1234567890abcdef12345678","latest"],"id":1}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x6080604052..."
}

qc_getStorageAt

Returns the value at a storage position for a given address.

Parameter	Type	Description
`address`	`string`	20-byte address (hex)
`storageKey`	`string`	Storage slot position (hex, 32 bytes)
`blockNumber`	`string`	Block number (hex) or tag

curl -X POST https://api.quantumapi.io/v1/rpc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"qc_getStorageAt","params":["0x1234567890abcdef1234567890abcdef12345678","0x0","latest"],"id":1}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x0000000000000000000000000000000000000000000000000000000000000001"
}

qc_getProof

Returns the Merkle proof for an account and optionally its storage keys. Useful for light client verification.

Parameter	Type	Description
`address`	`string`	20-byte address (hex)
`storageKeys`	`string[]`	Array of storage keys to prove
`blockNumber`	`string`	Block number (hex) or tag

curl -X POST https://api.quantumapi.io/v1/rpc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"qc_getProof","params":["0xff81e5c74e14db5b4ee407d66b1b063c8f305c51",["0x0"],"latest"],"id":1}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "address": "0xff81e5c74e14db5b4ee407d66b1b063c8f305c51",
    "balance": "0x56bc75e2d63100000",
    "codeHash": "0xc5d2...01",
    "nonce": "0x0",
    "storageHash": "0x56e8...ab",
    "accountProof": ["0x..."],
    "storageProof": [
      {
        "key": "0x0",
        "value": "0x1",
        "proof": ["0x..."]
      }
    ]
  }
}

qc_getBlockReceipts

Returns all transaction receipts for a given block.

Parameter	Type	Description
`blockNumber`	`string`	Block number (hex) or tag

curl -X POST https://api.quantumapi.io/v1/rpc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"qc_getBlockReceipts","params":["latest"],"id":1}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "transactionHash": "0x789...abc",
      "transactionIndex": "0x0",
      "blockHash": "0xabc...123",
      "blockNumber": "0x1a4",
      "from": "0xff81...c51",
      "to": "0x5678...efgh",
      "gasUsed": "0x5208",
      "status": "0x1",
      "logs": []
    }
  ]
}

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JSON-RPC reference

qc_accounts

qc_getBalance

qc_getCode

qc_getStorageAt

qc_getProof

qc_getBlockReceipts

​qc_accounts

​qc_getBalance

​qc_getCode

​qc_getStorageAt

​qc_getProof

​qc_getBlockReceipts

qc_accounts

qc_getBalance

qc_getCode

qc_getStorageAt

qc_getProof

qc_getBlockReceipts