Polygon

/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.
blockNumber	String	Block number for which the balance needs to be retrieved. By default, it will pick the latest block number when not specified.
address*	String	The public address to get the balance of.
tokenAddress	String	The address of token to get the balance of.
timestamp	String	The timestamp of the block number. Note- When both a timestamp and a block number are provided, the timestamp will take precedence.

Sample Request

https://api.expand.network/chain/getbalance?chainId=137&blockNumber=58664722&address=0x804a712AD5BB31756B4Cd6Ee58176dce06594845&tokenAddress=0xD9a1070f832Cc02ff9d839500EEf6E8c64983726

Sample Response

/getblock

Get details of a block.

GET https://historicallp.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.
startBlock	String	Starting block of the range. Note: Maximum supported range is 10, meaning the startBlock is determined by endBlock - 9.
endBlock	String	Last block of the range. Note: Maximum supported range is 10, meaning the endBlock is determined by startBlock + 9.

Sample Request

https://historicallp.api.expand.network/chain/getblock?chainId=137

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?chainId=137

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?chainId=137&address=0xb33EaAd8d922B1083446DC23f610c2567fB5180f

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?chainId=137&transactionHash=0xee44d837079754929b0ef0e9752de8c78f0da4a601d3c61a7ac6660cb78f06e4

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.
pageToken	String	Present at the end of a lengthy response to fetch the next page.
assetType	String	fungible/nonFungible standard choice. By default, all.
timestamp	String	The Timestamp of the block number up to which the balances will be fetched. Note-Only applicable for assetType fungible
blockNumber	String	The block number up to which the balances will be fetched. Note-Only applicable for assetType fungible
include24hrChange	Boolean	If truereturn the token data with 24-hour changes. By default, false

Sample Request

https://api.expand.network/chain/portfolio?chainId=137&address=0x28aAc2D0B8e4292F499675014be4C323c60563c1&availableOnly=true

Sample Response

/getusertransactions

Get the historical transaction details for a specific user address.

GET https://historicallp.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.
pageToken	String	The page cursor present at the top to fetch the next page.
pageSize	String	The page size. By Default 30 and Max 100
sortOrder	String	The transaction sorting order. asc or desc. By default, desc.
startBlock	String	The starting block number from which to get the transactions. By default, the Genesis block
endBlock	String	The ending block number from which to get the transactions By default, the current block
fromTimestamp	String	The start date from which to get the transactions ( format in seconds or date string ) Note-If 'fromTimestamp' and 'startBlock' are provided, 'startBlock' will be used. By default, the Genesis block timestamp
toTimestamp	String	The end date from which to get the transactions ( format in seconds or date string ) Note- If 'toTimestamp' and 'endBlock' are provided, 'endBlock' will be used. By default, the current block timestamp

Sample Request

https://historicallp.api.expand.network/chain/getusertransactions?sortOrder=asc&address=0x006Dda54A6a3FAC2742F6db38029ADCd2dFE0A52&pageSize=5&chainId=137

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.

Sample Request

{
    "chainId" : "137",
    "rawTransaction": "0xf86f048433918fbe830493e0949b79d6dfe4650d70f35dbb80f7d1ec0cf7f823fd87038d7ea4c6800084022794382da0c9bd6b5c7e18a258b04039d524a3e1382ec0f522d160dc027428933f520b6868a07332736f1df297842299230820626f1fc5b8d4cdd602ade55e3ba02c63e756ce"
}

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": "137",
    "rawTransaction": "0xf86c808511cf7b7e2f830a3b4f94a67e9b68c41b0f26184d64c26e0b2b81466e599485e8d4a5100080820135a0a6212e566b2e319cd45625034eed1579feb6b8663f470cebf0a676efec134a88a04830a7db11731943ebb2f2b78d054ddcf3153abe5571efb235efec00f555a870"
}

Sample Response