Ethereum

/getbalance

Get the balance or number of the given token in the requested public address.

GET https://api.expand.network/chain/getbalance

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
address*	String	The public address to get the balance of.
tokenAddress	String	The address of token to get the balance of.

Sample Request

https://api.expand.network/chain/getbalance/?address=0x731FDBd6871aD5cD905eE560A84615229eD8197a

Sample Response

/getblock

Get details of a block.

GET https://api.expand.network/chain/getblock

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
blockNumber*	String	The block number or block hash.

Sample Request

https://api.expand.network/chain/getblock?blockNumber=16318231

Sample Response

/getgasprice

Get the current gas price from the network.

GET https://api.expand.network/chain/getgasprice

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.

Sample Request

https://api.expand.network/chain/getgasprice

Sample Response

/getstorage

Get data stored in the given slot.

GET https://api.expand.network/chain/getstorage

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
address*	String	Contract address whose storage is needed.
index	String	Slot index on the smart contract. By default, it is taken as 0.

Sample Request

https://api.expand.network/chain/getstorage?address=0x6839f0eB2a4f323aC616b99BA01547dE592BC965

Sample Response

/gettransaction

Get details of a transaction.

GET https://api.expand.network/chain/gettransaction

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
transactionHash*	String	The transaction hash.

Sample Request

https://api.expand.network/chain/gettransaction?transactionHash=0x00ac1582db64ee60e1be6b653c42ca5d199d749c2e0e3990f3ab00433fcdc1d6

Sample Response

/getgasfees

Retrieves the total fee spent, current price, adjusted price (in cents), and the transaction list associated with a specified address within a given block range.

GET https://api.expand.network/chain/getgasfees

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
address*	String	Addess of the user
startBlock	String	Starting block of the range by default it is latestblock-100
endBlock	String	Last block of the range by default it is latest block

Sample Request

https://api.expand.network/chain/getgasfees?address=0x690B9A9E9aa1C9dB991C7721a92d351Db4FaC990

Sample Response

/portfolio

Get detailed information about the verified assets or tokens currently associated with a user's wallet address.

GET https://api.expand.network/chain/portfolio

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
address*	String	Public addess of the user.
tokens	String	Comma-separated value of ERC-20 tokens to get value of. Maximum 10 at a time.
availableOnly	Boolean	By default, false. If true, tokens with balance > 0 will be listed.
pageToken	String	Present at the end of a lengthy response to fetch the next page.
assetType	String	fungible/nonFungible standard choice. By default, all.

Sample Request

https://api.expand.network/chain/portfolio?chainId=1&address=0x356dB816602c85e2075774bB77D13995c8Bab023&availableOnly=true

Sample Response

/getusertransactions

Get the historical transaction details for a specific user address.

GET https://api.expand.network/chain/getusertransactions

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
address*	String	The public address of the user.
page	String	The page number that the user wants to fetch.
sortOrder	String	The transaction sorting order. asc or desc. By default, desc.

Sample Request

https://api.expand.network/chain/getusertransactions?address=0x95222290DD7278Aa3Ddd389Cc1E1d165CC4BAfe5&page=509&chainId=1

Sample Response

/getflashbotblocks

Get details of the flashbot blocks.

GET https://api.expand.network/chain/getflashbotblocks

Query Parameters

Name	Type	Description
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.

Sample Request

https://api.expand.network/chain/getflashbotblocks?chainId=1

Sample Response

/getflashbottransactions

Get details of the flashbot transactions.

GET https://api.expand.network/chain/getflashbottransactions

Query Parameters

Name	Type	Description
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.

Sample Request

https://api.expand.network/chain/getflashbottransactions?chainId=1

Sample Response

/getflashbotbundle

Get details of the specified flashbot bundle.

GET https://api.expand.network/chain/getflashbotbundle

Query Parameters

Name	Type	Description
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
bundleHash*	String	The bundle hash.

Sample Request

https://api.expand.network/chain/getflashbotbundle?bundleHash=0x2228f5d8954ce31dc1601a8ba264dbd401bf1428388ce88238932815c5d6f23f

Sample Response

/sendtransaction

Send transaction on the chain.

POST https://api.expand.network/chain/sendtransaction

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
rawTransaction*	String	The encoded transaction, obtained from the signed transaction.
bdnTransaction	Boolean	If true, then txn goes through the bdn route, which speeds up the transaction process. By default, false.
mevProtection	Boolean	If true, then txn goes through flashbots.

Sample Request

{
    "rawTransaction": "0xf86f048433918fbe830493e0949b79d6dfe4650d70f35dbb80f7d1ec0cf7f823fd87038d7ea4c6800084022794382da0c9bd6b5c7e18a258b04039d524a3e1382ec0f522d160dc027428933f520b6868a07332736f1df297842299230820626f1fc5b8d4cdd602ade55e3ba02c63e756ce"
}

Sample Response

Sample Request

With bdnTransaction: true

{
    "chainId": "1",
    "rawTransaction": "0xf8672385070e93c2cf8261a8946fb447ae94f5180254d436a693907a1f57696900830186a08026a0544037b4bd1f139c5d5cbc926d239f4eff34ecc428872e9ba576d6b921254c15a014e0e56c6b2d752d03e059098d69b59b26063a8767bcd1cfc00fc0e9e7ab8365",
    "bdnTransaction": true
}

Sample Response

Sample Request

With mevProtection: true

{
    "chainId":"1",
    "rawTransaction": "0xf8a68205180f82753e94dc31ee1784292379fbb2964b3b9c4124d8f89c6080b844a9059cbb000000000000000000000000a67e9b68c41b0f26184d64c26e0b2b81466e5994000000000000000000000000000000000000000000000000000000174876e8002ea0952b0468aff066f3e00a1d476b8894d84bfc47a1a3cdab9d6809a3461cc713e5a018219ee382aa3c7edf73a87bd8a75e2c40a97efbdf56a6cfd353af06fb74101d",
    "mevProtection": true
}

Sample Response

/genericsmartcontractmethod

Executes a read query on a verified smart contract on etherscan. In case of un-verified smart contracts, ABI needs to be provided to proceed accordingly.

POST https://api.expand.network/chain/genericsmartcontractmethod

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
contractAddress*	String	Address of the Contract to perform read operation on.
parameters	Array	Parameters to the read function
abi	String	Abi of the smart contract
methodName*	String	Name of the read function to be called
blockNumber	String	BlockNumber to perform read query on. by Default latestBlock

Sample Request

{
    "contractAddress": "0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D",
    "methodName": "getAmountsIn",
    "parameters": [
        "4515444785",
        [
            "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
            "0x6B175474E89094C44Da98b954EedeAC495271d0F"
        ]
    ]
}

Sample Response

/decodetransaction

Get the decoded transaction for the provided raw transaction.

POST https://api.expand.network/chain/decodetransaction

Request Body

Name	Type	Description
chainId	String	Refer to the Chain ID page for details. By default, Ethereum.
chainSymbol	String	Refer to the Chain ID page for details.
rawTransaction*	String	The raw transaction to be given for decoding.

Sample Request

{ 
    "chainId" : "1",
    "rawTransaction":"0xf865808509c9919d87830a4a1194a67e9b68c41b0f26184d64c26e0b2b81466e5994018025a07542477f2599acdda95c37ff0492bd0ac656687780033807e0434ccf69bd4015a005f33bf2cde8001f51b46e18db78049b4509b824f09dccb45b4dbb9087d17049"
}

Sample Response