Benqi

Supported Chains

Available on Avalanche

Available Endpoints:

Click on the endpoint to jump to the section with full details

GET - Get the Stader staking APR.
GET - Get the initial staked amount and current staked value by a specified user address.
GET -Get the stake amount for a particular address.
GET - Retrieves all withdrawal requests made by a specified address.
GET - Get the status of a withdrawal request made by a specified address.
GET - Get the approved allowance amount set by the owner for the spender.
POST - Initiate a transaction to stake on Stader protocol.
POST - Initiate a withdrawal request on Stader.
POST - Initiate a transaction to claim staked ETH after a withdrawal request.

Also see

Liquid Staking IDs

Many endpoints have a parameter where you can provide a Liquid Staking ID.

Liquid Staking Name

Chain

Liquid Staking ID

Benqi

Avalanche

43114

Endpoint Details

/getapr

Get the Stader staking APR.

GET https://api.expand.network/liquidstaking/getapr

Query Parameters

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

https://api.expand.network/liquidstaking/getapr?liquidStakingId=43114

{
    "status": 200,
    "msg": "success",
    "data": {
        "timeUnix": "1726234694",
        "apr": "5.46",
        "blockNumber": "50483509"
    }
}

/getrewards

Get the initial staked amount and current staked value by a specified user address.

GET https://api.expand.network/liquidstaking/getrewards

Query Parameters

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

address*

String

Public address of the user.

https://api.expand.network/liquidstaking/getrewards?liquidStakingId=43114&address=0x10137E2EC5907ceA3151FB00C3Ecd9B48E22B82B

{
    "status": 200,
    "msg": "success",
    "data": {
        "stakedAmount": "17208357980018603",
        "stakeValue": "20073834784345071"
    }
}

/getstake

Get the stake amount for a particular address.

GET https://api.expand.network/liquidstaking/getstake

Query Parameters

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

address*

String

Public address of the user.

https://api.expand.network/liquidstaking/getstake?address=0x10137E2EC5907ceA3151FB00C3Ecd9B48E22B82B&liquidStakingId=43114

{
    "status": 200,
    "msg": "success",
    "data": {
        "sAVAX": "17208357980018603"
    }
}

/getwithdrawalrequests

Get all the withdrawal requests(NFT ids) made by a specified address.

GET https://api.expand.network/liquidstaking/getwithdrawalrequests

Query Parameters

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

address*

String

Public address of the user.

https://api.expand.network/liquidstaking/getwithdrawalrequests?liquidStakingId=43114&address=0xc1d423aE49fba66AA713610811d13e0BECf213c6

{
    "status": 200,
    "msg": "success",
    "data": [
        "0"
    ]
}

/getwithdrawalstatus

Get the status of a withdrawal request made by a specified address.

GET https://api.expand.network/liquidstaking/getwithdrawalstatus

Query Parameters

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

address*

String

The address of user

requestId*

String

The token id of NFT , which is minted upon request, to claim the rewards.

https://api.expand.network/liquidstaking/getwithdrawalstatus?liquidStakingId=43114&requestId=0&address=0xc1d423aE49fba66AA713610811d13e0BECf213c6

{
    "status": 200,
    "msg": "success",
    "data": {
        "amountOfsAVAX": "378877936578560186",
        "withdrawalTime": "1726024008"
    }
}

/getallowance

Get the approved allowance amount set by the owner for the spender.

GET https://api.expand.network/liquidstaking/getallowance

Query Parameters

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

owner*

String

Public address of the owner of token.

tokenAddress*

String

Token contract address.

spender*

String

Public address of the spender of token.

https://api.expand.network/liquidstaking/getallowance?liquidStakingId=43114&owner=0x6427B4b028c4A1db5fb5dAf80C22e81115457230&tokenAddress=0x2b2C81e08f1Af8835a78Bb2A90AE924ACE0eA4bE&spender=0x6427B4b028c4A1db5fb5dAf80C22e81115457230

{
    "status": 200,
    "msg": "success",
    "data": {
        "allowance": "53880000000000000"
    }
}

/stake

Initiate a transaction to stake on Stader.

POST https://api.expand.network/liquidstaking/stake

Request Body

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

from*

String

Public address of the owner of this request.

amount*

String

Amount of token to stake.

gas*

String

Maximum gas limit provided by the sender, for the transaction.

gasPriority

String

low, medium, or high.

ofacCheck

Boolean

if true,provides insights of the contract and tokens involved in the transaction. By Default, falseAvailable on Ethereum, Polygon, BSC, Avalanche, Arbitrum and Optimism Mainnet

{
    "amount": "1000000000000000000",
    "liquidStakingId": "43114",
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "gas": "40000"
}

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "43114",
        "from": "0xefdc8FC1145ea88e3f5698eE7b7b432F083B4246",
        "to": "0x2b2C81e08f1Af8835a78Bb2A90AE924ACE0eA4bE",
        "data": "0x5bcb2fc6",
        "value": "1000000000000000000",
        "gas": "40000",
        "referenceId": "39bb3a38c06b4543a4bbf48985a0bcba"
    }
}

With gasPriority:

{
    "amount": "1000000000000000000",
    "liquidStakingId": "43114",
    "from": "0xefdc8FC1145ea88e3f5698eE7b7b432F083B4246",
    "gas": "40000",
    "gasPriority": "low"
}

With gasPriority:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "43114",
        "from": "0xefdc8FC1145ea88e3f5698eE7b7b432F083B4246",
        "to": "0x2b2C81e08f1Af8835a78Bb2A90AE924ACE0eA4bE",
        "data": "0x5bcb2fc6",
        "value": "1000000000000000000",
        "gas": "40000",
        "gasPrice": "25000000000",
        "referenceId": "39bb3a38c06b4543a4bbf48985a0bcba"
    }
}

With ofacCheck:

{
    "amount": "1000000000000000000",
    "liquidStakingId": "43114",
    "from": "0xefdc8FC1145ea88e3f5698eE7b7b432F083B4246",
    "gas": "40000",
    "gasPriority": "low",
    "ofacCheck": true
}

With ofacCheck:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xfAE7D9854995E28BEB1B1da864ee2A1E2EC17f07",
        "to": "0x3d9819210a31b4961b30ef54be2aed79b9c9cd3b",
        "value": "0",
        "gas": "40000",
        "data": "0xede4edd00000000000000000000000005d3a536e4d6dbd6114cc1ead35777bab948e3643",
        "gasPrice": "499498318",
        "estimationCheck": true,
        "insights": {
            "asset": {
                "issues": [],
                "verdict": {
                    "code": 0,
                    "label": "NO_ISSUES"
                }
            },
            "to": {
                "issues": [],
                "verdict": {
                    "code": 0,
                    "label": "NO_ISSUES"
                }
            }
        },
        "referenceId": "e9bfe6229a844227a92a2f6669aa1da0"
    }
}

/requestwithdrawal

Initiate a transaction to request a withdrawal on Stader.

POST https://api.expand.network/liquidstaking/requestwithdrawal

Request Body

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

from*

String

Public address of the owner of this request.

amount*

String

Amount of tokens to request withdrawal.

ownerAddress*

String

Public address of the owner.

gas*

String

Maximum gas limit provided by the sender, for the transaction.

gasPriority

String

low, medium, or high.

ofacCheck

Boolean

if true,provides insights of the contract and tokens involved in the transaction. By Default, falseAvailable on Ethereum, Polygon, BSC, Avalanche, Arbitrum and Optimism Mainnet

{
    "amount": "100000",
    "liquidStakingId": "43114",
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "gas": "40000"
}

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "43114",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x2b2C81e08f1Af8835a78Bb2A90AE924ACE0eA4bE",
        "data": "0xc9d2ff9d00000000000000000000000000000000000000000000000000000000000186a0",
        "gas": "40000",
        "value": "0",
        "referenceId": "575c082d45a44ced9d64017437cdfbae"
    }
}

With gasPriority:

{
    "amount": "100000",
    "liquidStakingId": "43114",
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "gas": "40000",
    "gasPriority": "low"
}

With gasPriority:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "43114",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x2b2C81e08f1Af8835a78Bb2A90AE924ACE0eA4bE",
        "data": "0xc9d2ff9d00000000000000000000000000000000000000000000000000000000000186a0",
        "gas": "40000",
        "value": "0",
        "gasPrice": "25000000000",
        "referenceId": "71d1eb3a86254ccb9d2da22c677edc31"
    }
}

With ofacCheck:

{
    "amount": "100000",
    "liquidStakingId": "43114",
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "gas": "40000",
    "gasPriority": "low",
    "ofacCheck": true
}

With ofacCheck:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xfAE7D9854995E28BEB1B1da864ee2A1E2EC17f07",
        "to": "0x3d9819210a31b4961b30ef54be2aed79b9c9cd3b",
        "value": "0",
        "gas": "40000",
        "data": "0xede4edd00000000000000000000000005d3a536e4d6dbd6114cc1ead35777bab948e3643",
        "gasPrice": "499498318",
        "estimationCheck": true,
        "insights": {
            "asset": {
                "issues": [],
                "verdict": {
                    "code": 0,
                    "label": "NO_ISSUES"
                }
            },
            "to": {
                "issues": [],
                "verdict": {
                    "code": 0,
                    "label": "NO_ISSUES"
                }
            }
        },
        "referenceId": "e9bfe6229a844227a92a2f6669aa1da0"
    }
}

/claim

Initiate a transaction to burn the NFT, which is minted upon request, and to claim the rewards.

POST https://api.expand.network/liquidstaking/claim

Request Body

Name

Type

Description

rpc

String

Remote procedural call URL.

liquidStakingId

String

from*

String

Public address of the owner of this request.

requestId*

String

The token id of NFT , which is minted upon request, to claim the rewards.

gas*

String

Maximum gas limit provided by the sender, for the transaction.

gasPriority

String

low, medium, or high.

ofacCheck

Boolean

if true,provides insights of the contract and tokens involved in the transaction. By Default, falseAvailable on Ethereum, Polygon, BSC, Avalanche, Arbitrum and Optimism Mainnet

{
    "liquidStakingId": "43114",
    "requestId": "0",
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "gas": "400000"
}

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "43114",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x2b2C81e08f1Af8835a78Bb2A90AE924ACE0eA4bE",
        "data": "0xdb006a750000000000000000000000000000000000000000000000000000000000000000",
        "gas": "400000",
        "value": "0",
        "referenceId": "193cb54ca10748b1a6983b876bff3ace"
    }
}

With gasPriority:

{
    "liquidStakingId": "43114",
    "requestId": "0",
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "gasPriority": "medium",
    "gas": "400000"
}

With gasPriority:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "43114",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x2b2C81e08f1Af8835a78Bb2A90AE924ACE0eA4bE",
        "data": "0xdb006a750000000000000000000000000000000000000000000000000000000000000000",
        "gas": "400000",
        "value": "0",
        "gasPrice": "30000000000",
        "referenceId": "f94e863e53be482b9f724cebda22af3c"
    }
}

With ofacCheck:

{
    "liquidStakingId": "43114",
    "requestId": "0",
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "gasPriority": "medium",
    "gas": "400000",
    "ofacCheck": true
}

With ofacCheck:

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xfAE7D9854995E28BEB1B1da864ee2A1E2EC17f07",
        "to": "0x3d9819210a31b4961b30ef54be2aed79b9c9cd3b",
        "value": "0",
        "gas": "40000",
        "data": "0xede4edd00000000000000000000000005d3a536e4d6dbd6114cc1ead35777bab948e3643",
        "gasPrice": "499498318",
        "estimationCheck": true,
        "insights": {
            "asset": {
                "issues": [],
                "verdict": {
                    "code": 0,
                    "label": "NO_ISSUES"
                }
            },
            "to": {
                "issues": [],
                "verdict": {
                    "code": 0,
                    "label": "NO_ISSUES"
                }
            }
        },
        "referenceId": "e9bfe6229a844227a92a2f6669aa1da0"
    }
}

Error Handling Details

Error

Description

400 (Bad Request)

Indicates the request is invalid or missing the required parameters. The msg field will contain details about the error.

401 (Unauthorised)

Indicates the request lacks valid authentication credentials (API key). Ensure that you provide a valid API key in the request headers.

404 (Not Found)

Indicates that the specified endpoint or resource does not exist.

500 (Server Error)

Indicates an internal server error.

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