> ## Documentation Index
> Fetch the complete documentation index at: https://developers.stellar.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign Soroban XDRs

> Sign smart contract XDRs using dapps integrated with Varial

With a funded Testnet account, you can now sign Soroban XDRs using dApps that are integrated with Varial. An example of an integrated dApp is Stellar's [Lab](https://lab.stellar.org/transaction/sign?\$=network\$id=testnet\&label=Testnet\&horizonUrl=https:////horizon-testnet.stellar.org\&rpcUrl=https:////soroban-testnet.stellar.org\&passphrase=Test%20SDF%20Network%20/;%20September%202015;;).

1. On the Lab's transaction signer, enter a Soroban XDR into the form field.

2. Under `Sign with wallet extension`, click `Sign with wallet`.

3. Varial will open with the details of the XDR. Click `Confirm` to sign or `Cancel` to dismiss without a signature.

4. If you click `Confirm`, Varial will transmit a signed XDR back to the Lab.