---
updatedAt: 2026-04-23T12:57:25.000Z
agentTools:
  projectIndex: https://documentation.northstake.dk/llms.txt
---

# Preview the stETH shares to burn for a given STV withdrawal amount

Returns the amount of stETH shares that would need to be rebalanced when
withdrawing a given STV amount from an StvStETH pool. Only applicable to
StvStETH and StvStrategy pools.


# OpenAPI definition

```json
{
  "openapi": "3.0.3",
  "info": {
    "title": "Northstake",
    "description": "Northstake api\n\nOperation-level extensions used by the API:\n- x-roleRequired (array of strings): roles required to call the operation.\n- x-mfaApiScope (array of strings): MFA API scopes required when the user has MFA enrolled.\n- x-isProSvmFeature (boolean): when true, the operation is restricted to users whose Cosmos user document has is_pro_svm_user set to true.\n",
    "version": "1.0"
  },
  "servers": [
    {
      "url": "https://api.northstake.dk/v1"
    }
  ],
  "paths": {
    "/lidov3/staking-vaults/{contractsId}/pool-steth-burn-preview/{userAddress}": {
      "get": {
        "operationId": "getPoolStethBurnPreview",
        "x-isProSvmFeature": true,
        "summary": "Preview the stETH shares to burn for a given STV withdrawal amount",
        "description": "Returns the amount of stETH shares that would need to be rebalanced when\nwithdrawing a given STV amount from an StvStETH pool. Only applicable to\nStvStETH and StvStrategy pools.\n",
        "tags": [
          "lido/SVMPro"
        ],
        "parameters": [
          {
            "in": "path",
            "name": "contractsId",
            "required": true,
            "schema": {
              "type": "string"
            },
            "description": "The unique identifier of the Lido staking contracts"
          },
          {
            "in": "path",
            "name": "userAddress",
            "required": true,
            "schema": {
              "type": "string",
              "pattern": "^0x[a-fA-F0-9]{40}$"
            },
            "description": "The Ethereum address of the user withdrawing"
          },
          {
            "in": "query",
            "name": "stvAmount",
            "required": true,
            "schema": {
              "type": "string"
            },
            "description": "The STV amount to withdraw (bigint string in wei, 27 decimals)"
          }
        ],
        "responses": {
          "200": {
            "description": "stETH shares to burn for the given withdrawal",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/PoolStethBurnPreviewResponse"
                }
              }
            }
          },
          "400": {
            "description": "Client Error",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "ErrorResponse": {
        "title": "APIErrorResponse",
        "description": "General structure for error responses from the API.",
        "type": "object",
        "properties": {
          "message": {
            "type": "string"
          }
        }
      },
      "PoolStethBurnPreviewResponse": {
        "type": "object",
        "properties": {
          "pool": {
            "type": "object",
            "properties": {
              "address": {
                "type": "string"
              }
            },
            "required": [
              "address"
            ]
          },
          "userAddress": {
            "type": "string"
          },
          "stvAmount": {
            "type": "string",
            "description": "The STV amount queried (echoed back)"
          },
          "stethSharesToBurn": {
            "type": "string",
            "description": "The stETH shares that need to be rebalanced (bigint string, 18 decimals)"
          }
        },
        "required": [
          "pool",
          "userAddress",
          "stvAmount",
          "stethSharesToBurn"
        ]
      }
    }
  }
}
```