EigenLayer

Supported Chains

Available on Ethereum mainnet and testnet

Available Endpoints:

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

• /getstake GET -Get the stake amount for a particular address.

• /restake POST - Initiate a transaction to restake on EigenLayer protocol.

• /requestwithdrawal POST - Initiate a withdrawal request on EigenLayer.

• /claim POST - Initiate a transaction to claim restaked token after a withdrawal request.

• /delegate POST - Initiate a transaction to delegate the staked assets on EigenLayer.

• /undelegate POST - Initiate a transaction to undelegate the staked assets on the EigenLayer.

Also see Error Handling Details

Liquid Staking IDs

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

Below is a list of Liquid Staking IDs related to the EigenLayer. Please see the Liquid Staking ID page for a complete Liquid Staking ID list and more information.

Liquid Staking Name	Chain	Liquid Staking ID
EigenLayer	Ethereum	3
EigenLayer	Ethereum Holesky Testnet	17000

Endpoint Details

/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	Refer to the Liquid Staking Id page for details.
address*	String	Public address of the user.

Sample Request

https://api.expand.network/liquidstaking/getstake?address=0x7358cE33f7C3361A66d644A95603983adF16D722&liquidStakingId=3

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "bEIGEN": "110000000000000000"
    }
}

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/restake

Initiate a transaction to restake on EigenLayer.

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

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
liquidStakingId	String	Refer to the Liquid Staking Id page for details.
from*	String	Public address of the owner of this request.
token*	String	Staked token name for restake.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
gasPriority	String	low, medium, or high.

Sample Request

{
   "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
   "amount": "100000000000000",
   "liquidStakingId": "3",
   "gas": "8000000",
   "gasPriority": "high",
   "token":"sTETH"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x858646372CC42E1A627fcE94aa7A7033e7CF075A",
        "data": "0xe7a050aa00000000000000000000000093c4b944d05dfe6df7645a86cd2206016c51564d000000000000000000000000ae7ab96520de3a18e5e111b5eaab095312d7fe8400000000000000000000000000000000000000000000000000005af3107a4000",
        "value": "0",
        "gas": "171219",
        "gasPrice": "2",
        "estimationCheck": true,
        "referenceId": "6ced624eb4bf46438063062d4a4df12d"
    }
}

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/delegate

Initiate a transaction to delegate the staked assets on EigenLayer.

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

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
liquidStakingId	String	Refer to the Liquid Staking Id page for details.
from*	String	Public address of the owner of this request.
delegateTo*	String	The operator contract address to which the user wants to delegate
gas*	String	Maximum gas limit provided by the sender, for the transaction.
gasPriority	String	low, medium, or high.

Sample Request

{
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "delegateTo": "0xdbed88d83176316fc46797b43adee927dc2ff2f5",
    "liquidStakingId": "3",
    "gas": "80000",
    "gasPriority": "low"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x39053D51B77DC0d36036Fc1fCc8Cb819df8Ef37A",
        "data": "0xeea9064b000000000000000000000000dbed88d83176316fc46797b43adee927dc2ff2f500000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
        "gas": "80000",
        "value": "0",
        "gasPrice": "1",
        "estimationCheck": true,
        "referenceId": "f95b5b2d47124927ba87c452202d9bbf"
    }
}

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/undelegate

Initiate a transaction to undelegate the staked assets on the Eigen Layer.

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

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
liquidStakingId	String	Refer to the Liquid Staking Id page for details.
from*	String	Public address of the owner of this request.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
gasPriority	String	low, medium, or high.

Sample Request

{
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "liquidStakingId": "3",
    "gas": "80000"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x39053D51B77DC0d36036Fc1fCc8Cb819df8Ef37A",
        "data": "0xda8be864000000000000000000000000dae2f6eddda6fb4fb60cc02633de27e2b431b402",
        "gas": "131514",
        "value": "0",
        "estimationCheck": true,
        "referenceId": "e05489bdfda945f096746d4634c7a283"
    }
}

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/requestwithdrawal

Initiate a transaction to request a withdrawal on EigenLayer.

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

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
liquidStakingId	String	Refer to the Liquid Staking Id page for details.
from*	String	Public address of the owner of this request.
amount*	String	Amount of tokens to request withdrawal.
token*	String	Staked token name.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
gasPriority	String	low, medium, or high.

Sample Request

{
    "liquidStakingId": "3",
    "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
    "amount": "15630524642139",
    "gas": "800000",
    "gasPriority": "high",
    "token": "sTETH"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x39053D51B77DC0d36036Fc1fCc8Cb819df8Ef37A",
        "data": "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",
        "gas": "97185",
        "value": "0",
        "gasPrice": "2",
        "estimationCheck": true,
        "referenceId": "f77d6f7160f84040a5766e908cc76510"
    }
}

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/claim

Initiate a transaction to claim the rewards.

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

Request Body

Name	Type	Description
rpc	String	Remote procedural call URL.
liquidStakingId	String	Refer to the Liquid Staking Id page for details.
from*	String	Public address of the owner of this request.
amount*	String	Amount of tokens to claim.
token*	String	Staked token name.
gas*	String	Maximum gas limit provided by the sender, for the transaction.
gasPriority	String	low, medium, or high.

Sample Request

{
   "liquidStakingId": "3",
   "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
   "amount": "1236",
   "token": "sTETH",
   "gas": "800000",
   "gasPriority": "high"
}

Sample Response

{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402",
        "to": "0x39053D51B77DC0d36036Fc1fCc8Cb819df8Ef37A",
        "data": "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",
        "gas": "800000",
        "value": "0",
        "gasPrice": "2",
        "estimationCheck": true,
        "referenceId": "2b178c56016b4446bd9e77329bcc3eaf"
    }
}

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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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