ERC20

/gettokendetails

Get the name, symbol and decimals of provided token address. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Base, and zkSync.

GET https://api.expand.network/fungibletoken/gettokendetails

Query Parameters

Name	Type	Description
rpc	String	Remote procedural call URL.
tokenAddress*	String	Address of token.
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/fungibletoken/gettokendetails?tokenAddress=0xEB1112Ac78D537853150E2a07E8b765E29d3F019

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "symbol": "HASH",
        "name": "HASH",
        "decimal": "18"
    }
}

/getuserallowance

Get the amount that the spender is allowed to withdraw on behalf of the owner. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Base, and zkSync.

GET https://api.expand.network/fungibletoken/getuserallowance

Query Parameters

Name	Type	Description
tokenAddress*	String	Address of the token.
owner*	String	Public address of the owner.
spender*	String	Public address of the spender.
rpc	String	Remote procedural call URL.
chainId	String	Refer to the Chain ID page for more details.
chainSymbol	String	Refer to the Chain ID page for more details.

Sample Request

https://api.expand.network/fungibletoken/getuserallowance?owner=0x6Fb447Ae94F5180254D436A693907a1f57696900&tokenAddress=0x6b175474e89094c44da98b954eedeac495271d0f&spender=0xBA12222222228d8Ba445958a75a0704d566BF2C8

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "allowance": "999000000000000000000"
    }
}

/getuserbalance

Get the balance of the given token. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Base, and zkSync.

GET https://api.expand.network/fungibletoken/getuserbalance

Query Parameters

Name	Type	Description
chainId*	String	Refer to the Chain ID page for details.
tokenAddress*	String	Address of the token.
address*	String	Public Address of the user
chainSymbol	String	Refer to the Chain ID page for details.

Sample Request

https://api.expand.network/fungibletoken/getuserbalance?tokenAddress=0x6B175474E89094C44Da98b954EedeAC495271d0F&address=0x63056E00436Da25BcF48A40dfBbDcc7089351006&chainId=1

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "balance": "90344000000000000000"
    }
}

/historical/transactions

Retrieves all the transfers for the given address in the given range.

GET https://api.expand.network/fungibletoken/historical/transactions

Query Parameters

Name	Type	Description
chainId	String	Refer to the Chain ID page for details.
address	String	Public Address of the user
chainSymbol	String	Refer to the Chain ID page for details.
startBlock	String	Starting block of the range. by default latestBlock -100
endBlock	String	Last block of the range. by default its latestBlock
page	String	page to get response on, by default its 1
sort	String	asc/desc sorting method, by default its desc
tokenAddress*	String	address of the erc20 token

Sample Request

https://api.expand.network/fungibletoken/historical/transactions?tokenAddress=0x6b175474e89094c44da98b954eedeac495271d0f

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "transactions": [
            {
                "blockNumber": "18968825",
                "timeStamp": "1704796271",
                "hash": "0x6df96285db80a5c1792a056bf9f38c63e9f250572c2f5afac945bcf996a145e5",
                "nonce": "21",
                "blockHash": "0xe8cf4dda5e648b707ff2837741708176122cb2196559c20c8618debf8c991997",
                "from": "0x3f2488a54c8b397525ff85ce5d32ac5f27dd8ce5",
                "contractAddress": "0x6b175474e89094c44da98b954eedeac495271d0f",
                "to": "0x1715a3e4a142d8b698131108995174f37aeba10d",
                "value": "193485657300000000000",
                "tokenName": "Dai Stablecoin",
                "tokenSymbol": "DAI",
                "tokenDecimal": "18",
                "transactionIndex": "114",
                "gas": "216896",
                "gasPrice": "12898560151",
                "gasUsed": "189283",
                "cumulativeGasUsed": "10458631",
                "input": "deprecated",
                "confirmations": "67",
                "methodId": "0xad58bdd1",
                "methodSignature": "relayTokens(address,address,uint256)"
            },
        ]
    }
}

/historical/weth

Retrieves all the WETH transfers for the given address in the given range.

GET https://api.expand.network/fungibletoken/historical/weth

Query Parameters

Name	Type	Description
chainId	String	Refer to the Chain ID page for details.
address	String	Public Address of the user
chainSymbol	String	Refer to the Chain ID page for details.
startBlock	String	Starting block of the range. by default latestBlock -100
endBlock	String	Last block of the range. by default its latestBlock
page	String	page to get response on, by default its 1
sort	String	asc/desc sorting method, by default its desc

Sample Request

https://api.expand.network/fungibletoken/historical/weth

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "transactions": [
            {
                "blockNumber": "17320271",
                "timeStamp": "1684824623",
                "hash": "0x051aac77f464921c72bb628fea7e1f57663b28e0286d20c69e830498307f15d5",
                "nonce": "367",
                "blockHash": "0x3dc921095193718262dcf3f07b52f1921351bef675a8617dd6f1badde6093f19",
                "from": "0x55d5c232d921b9eaa6b37b5845e439acd04b4dba",
                "contractAddress": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
                "to": "0xef1c6e67703c7bd7107eed8303fbe6ec2554bf6b",
                "value": "449713740022466855",
                "tokenName": "Wrapped Ether",
                "tokenSymbol": "WETH",
                "tokenDecimal": "18",
                "transactionIndex": "112",
                "gas": "212952",
                "gasPrice": "37761736473",
                "gasUsed": "149768",
                "cumulativeGasUsed": "10771742",
                "input": "deprecated",
                "confirmations": "1"
            }
        ]
    }
}

/historical/logs

Retrieves all the logs for the given address in the given range.

GET https://api.expand.network/fungibletoken/historical/logs

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.
startBlock	String	Starting block of the range. by default its (latestBlock -100)
endBlock	String	Last block of the range. by default its latestBlock
tokenAddress*	String	address of the erc20 token
type*	String	Approval/Transfer logs

Sample Request

https://api.expand.network/fungibletoken/historical/logs?tokenAddress=0x6B175474E89094C44Da98b954EedeAC495271d0F&type=Approval

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "logs": [
            {
                "address": "0x6b175474e89094c44da98b954eedeac495271d0f",
                "topics": [
                    "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925",
                    "0x000000000000000000000000975f7b8e68e99c04807e94f72d63e98ec21f5ad5",
                    "0x0000000000000000000000001715a3e4a142d8b698131108995174f37aeba10d"
                ],
                "params": {
                    "src": "0x975f7b8e68e99c04807e94f72d63e98ec21f5ad5",
                    "guy": "0x1715a3e4a142d8b698131108995174f37aeba10d",
                    "wad": "127000000000000000000"
                },
                "data": "0x000000000000000000000000000000000000000000000006e27aa3200a9c0000",
                "blockNumber": "17320089",
                "blockHash": "0x39b65a913a44fefa4f1432dc00927839cf8ba6bcbc778afb3effaf5c91a2a5d1",
                "timeStamp": "1684822391",
                "gasPrice": "37991235385",
                "gasUsed": "46158",
                "logIndex": "302",
                "transactionHash": "0x8b9159d1fc58b9dd33a0f8ebcb6980bca0416c3836bb08771c2cac5737dbadba",
                "transactionIndex": "109"
            }
        ]
    }
}

/approve

Sets amount as the allowance of spender over the user’s tokens. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Base, and zkSync.

POST https://api.expand.network/fungibletoken/approve

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
from*	String	Address of the sender of the token.
tokenAddress*	String	Address of token.
amount*	String	Number of tokens.
to*	String	Address to get approval of.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
gasPriority	String	low, medium, or high.

Sample Request

{
    "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006", 
    "tokenAddress":"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",  
    "amount": "1000000000000000000000",                  
    "to": "0x828b154032950c8ff7cf8085d841723db2696056", 
    "gas": "100000",
    "chainId": "1"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0",
        "gas": "100000",
        "data": "0x095ea7b3000000000000000000000000828b154032950c8ff7cf8085d841723db269605600000000000000000000000000000000000000000000003635c9adc5dea00000"
    }
}

Sample Request

With gasPriority:

{
    "from": "0xDeBB1a42a27051FD18d6d6C2055A44d330A4D80a", 
    "tokenAddress":"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",  
    "amount": "1000000000000000000000",
    "to": "0x828b154032950c8ff7cf8085d841723db2696056", 
    "gas": "100000",
    "gasPriority":"medium",
    "chainId": "1"
}

Sample Response

With gasPriority:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xDeBB1a42a27051FD18d6d6C2055A44d330A4D80a",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0",
        "gas": "55277",
        "data": "0x095ea7b3000000000000000000000000828b154032950c8ff7cf8085d841723db269605600000000000000000000000000000000000000000000003635c9adc5dea00000"
    }
}

/transfer

Moves amount tokens from the user’s account to the recipient. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Base, and zkSync.

POST https://api.expand.network/fungibletoken/transfer

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
from*	String	Address of the sender of the token.
tokenAddress*	String	Address of token.
amount*	String	Number of tokens.
to*	String	Address of the recipient of the token.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
gasPriority	String	low, medium, or high.

Sample Request

{
    "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
    "tokenAddress": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
    "amount": "1", 
    "to": "0x3E1Ca9fe2FC3021408d0E869BD3AFb167F889F38",
    "gas": "2307200"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0",
        "gas": "2307200",
        "data": "0xa9059cbb0000000000000000000000003e1ca9fe2fc3021408d0e869bd3afb167f889f380000000000000000000000000000000000000000000000000000000000000001"
    }
}

Sample Request

With gasPriority:

{
    "from": "0xDeBB1a42a27051FD18d6d6C2055A44d330A4D80a",
    "tokenAddress": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
    "amount": "1000000000000", 
    "to": "0x3E1Ca9fe2FC3021408d0E869BD3AFb167F889F38",
    "gas": "2307200",
    "gasPriority":"medium"
}

Sample Response

With gasPriority:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xDeBB1a42a27051FD18d6d6C2055A44d330A4D80a",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0",
        "gas": "61884",
        "data": "0xa9059cbb0000000000000000000000003e1ca9fe2fc3021408d0e869bd3afb167f889f38000000000000000000000000000000000000000000000000000000e8d4a51000"
    }
}

/transferfrom

Transfers tokens from sender to recipient using the allowance mechanism. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Starknet, Base, and zkSync.

POST https://api.expand.network/fungibletoken/transferfrom

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
from*	String	Address of the sender of the token.
tokenAddress*	String	Address of token.
amount*	String	Number of tokens.
to*	String	Address, on whose behalf, tokens are spent.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
reciever*	String	Receiver of the tokens.
gasPriority	String	low, medium, or high.

Sample Request

{
       "from": "0x6Fb447Ae94F5180254D436A693907a1f57696900",
       "tokenAddress": "0x4B9eb6c0b6ea15176BBF62841C6B2A8a398cb656",
       "amount": "10000000000000",
       "reciever":"0x56D2208EfD27Fe9C67e3879DeBCe35833B9D4cC7",
       "to": "0xa67E9B68c41b0f26184D64C26e0b2B81466E5994",
       "gas": "390000"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0",
        "gas": "2307200",
        "data": "0x23b872dd00000000000000000000000063056e00436da25bcf48a40dfbbdcc708935100600000000000000000000000094a5e554dc172a472421291ae6e6c0e3c150286f0000000000000000000000000000000000000000000000000000000000000046"
    }
}

Sample Request

With gasPriority:

{
       "from": "0x6Fb447Ae94F5180254D436A693907a1f57696900",
       "tokenAddress": "0x4B9eb6c0b6ea15176BBF62841C6B2A8a398cb656",
       "amount": "10000000000000",
       "reciever":"0x56D2208EfD27Fe9C67e3879DeBCe35833B9D4cC7",
       "to": "0xa67E9B68c41b0f26184D64C26e0b2B81466E5994",
       "gas": "390000"
}

Sample Response

With gasPriority:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xDeBB1a42a27051FD18d6d6C2055A44d330A4D80a",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0",
        "gas": "62126",
        "data": "0x23b872dd000000000000000000000000debb1a42a27051fd18d6d6c2055a44d330a4d80a00000000000000000000000094a5e554dc172a472421291ae6e6c0e3c150286f0000000000000000000000000000000000000000000000000000000000000046"
    }
}

/convertbasetokentowraptoken

Converts base token to wrap token. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Starknet, Base, and zkSync.

POST https://api.expand.network/fungibletoken/convertbasetokentowraptoken

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
from*	String	Address of the sender of the token.
tokenAddress*	String	Address of token.
amount*	String	Number of tokens.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
gasPriority	String	low, medium, or high.

Sample Request

{
    "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
    "tokenAddress":"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", 
    "gas": "2307200",
    "chainId": "1",
    "amount":"10"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0xa",
        "gas": "2307200",
        "data": "0xd0e30db0"
    }
}

Sample Request

With gasPriority:

{
    "from": "0xDeBB1a42a27051FD18d6d6C2055A44d330A4D80a",
    "tokenAddress":"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", 
    "gas": "2307200",
    "gasPriority":"medium",
    "chainId": "1",
    "amount":"10"
}

Sample Response

With gasPriority:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xDeBB1a42a27051FD18d6d6C2055A44d330A4D80a",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0xa",
        "gas": "31058",
        "data": "0xd0e30db0"
    }
}

/convertwraptokentobasetoken

Converts wrap token to base token. Currently available on Ethereum, Binance Smart Chain, Avalanche, Polygon, Cronos, Arbitrum, Fantom, Optimism, Starknet, Base, and zkSync.

POST https://api.expand.network/fungibletoken/convertwraptokentobasetoken

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
from*	String	Address of the sender of the token.
tokenAddress*	String	Address of token.
amount*	String	Number of tokens.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
chainId	String	Refer to the Chain ID page for details.
chainSymbol	String	Refer to the Chain ID page for details.
gasPriority	String	low, medium, or high.

Sample Request

{
    "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
    "tokenAddress":"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
    "amount": "5", 
    "gas": "2307200",
    "chainId": "1"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0",
        "gas": "2307200",
        "data": "0x2e1a7d4d0000000000000000000000000000000000000000000000000000000000000005"
    }
}

Sample Request

With gasPriority(medium):

{
    "from": "0xE4c0ddb2695415466be83f2A99b44b043CB55590",
    "tokenAddress":"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
    "amount": "100000000000",
    "gas": "2307200",
    "gasPriority":"medium",
    "chainId": "1"
}

Sample Response

With gasPriority:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xE4c0ddb2695415466be83f2A99b44b043CB55590",
        "to": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "value": "0",
        "gas": "43189",
        "data": "0x2e1a7d4d000000000000000000000000000000000000000000000000000000174876e800"
    }
}