---
title: "Convert Wrap Token to Base Token"
method: POST
path: "/defi/v1/fungibletoken/convertwraptokentobasetoken"
tags: ["fungibletoken"]
---

# Convert Wrap Token to Base Token

`POST /defi/v1/fungibletoken/convertwraptokentobasetoken`

## Request

- Base URL: `https://svc.blockdaemon.com`
- URL: `https://svc.blockdaemon.com/defi/v1/fungibletoken/convertwraptokentobasetoken`
- Auth: API key in header `X-API-Key`

Enables users to convert wrapped ERC-20 tokens back to their underlying base tokens. For example, it allows for the conversion of wrapped staked Ethereum (wstETH) back to its base version (stETH). This unwrapping process is essential for users who need to access the native properties of a token for activities that require the base token format.

> 💡 
**Compute Unit Value:** `145` (Fixed)

## Request body

- FungibletokenConvertwraptokentobasetokenRequest: The request body for a /defi/v1/fungibletoken/convertwraptokentobasetoken
  - `from` string, required: Blockchain address of the sender. For EVM chains, use a checksummed hex address (e.g., 0xABCDEF...). This address must hold sufficient balance and will sign the transaction.
  - `tokenAddress` string, required: Address of the token.
  - `amount` string, required: Number of tokens, specified in the token's smallest denomination (base units). Do not send human-readable decimal values. Examples: 1 WETH (18 decimals) = "1000000000000000000"; 1 USDC (6 decimals) = "1000000".
  - `gas` string: Maximum number of gas units to allocate for the transaction, as an integer string (e.g., '200000'). If omitted, gas is estimated automatically. Note: this is gas units, not wei or gwei.
  - `chainId` '1' | '56' | '43114' | '137' | '250' | '10' | '11155420' | '42161' | '421614' | '25' | '338' | '84532' | '8453' | '43113' | '97' | '80002' | '300' | '324' | '5000' | '5003' | '8217' | '1001': The unique ID to direct queries or transactions to the correct blockchain. Find more [here](https://docs.blockdaemon.com/docs/defi-api-supported-protocols#supported-chains).
  - `chainSymbol` string: The abbreviated chain name for queries or transactions.
  - `gasPriority` string: Specifies the priority level for gas fees (e.g., 'low', 'medium', or 'high'), which influences the transaction speed and cost.
  - `enableFee` boolean: Flag to include a basis points fee transaction alongside the main transaction when set to true.
  - `simulate` boolean: When true, dry-runs the transaction batch via eth_simulateV1 and returns a simulate field with status and error on each transaction.

## Response `200`

Successful response

- object
  - `status` integer
  - `msg` string
  - `data` object

---

[API](https://skmtc.dev/blockdaemon/apis/blockdaemon-defi-api.md) - [All operations](https://skmtc.dev/blockdaemon/apis/blockdaemon-defi-api/llms.txt) - [OpenAPI document](https://skmtc.dev/blockdaemon/apis/blockdaemon-defi-api/revisions/ec053b7c8041?raw)