> For the complete documentation index, see [llms.txt](https://docs.indigoprotocol.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.indigoprotocol.io/readme/public-testnet.md).

# Public Testnet

## Is there a Public Testnet?

Yes, Indigo is deployed on **Cardano's Preview Network**. You can explore all functionalities of the protocol by following this link: [Indigo Preview Testnet](https://preview.indigoprotocol.io/).

## Which wallet can I use?

Currently, only Nami and Eternl wallets are supported on the Preview Network.

## How can I connect to the Preview Network?

Using Nami wallet, follow the steps below.

* Click on your wallet icon, then select "Settings".

![](/files/C4Ze7oQrnQoKyP7OWz1Z)

* Then, select "Network".

![](/files/6DSjmEjPRLzF1fnUvyZA)

* In the drop-down list, select "Preview".

![](/files/aK7hssrHGoXgXHZ5TBYf)

* You're done! To confirm, you should now see the word "Preview" in the bottom left corner.

![](/files/QmoW9hr91ZaOZLwBGVLW)

## Why do I get "transaction failed" error?

If you are using Nami, it is very likely that you have not set a collateral amount; for more info, see [this article](https://docs.cardano.org/plutus/collateral-mechanism).

You can also follow these steps to fix the issue.

* Click on your wallet icon, then select "Collateral".

![](/files/uqWCl3IuT792eC4n2ok9)

* Then, enter your wallet password and press "Submit".

![](/files/Wx3NN9MqYdwbj4DmpUDT)

* That's it! To confirm, you should see a pop-up stating that collateral was added to your wallet.

![](/files/U9ihJpwW6lXsLmD2OqaA)

## How can I get tADA, and tINDY?

For tADA, you may go the [Cardano testnet faucet](https://docs.cardano.org/cardano-testnet/tools/faucet), select the Preview Network and provide your wallet address (make sure it is a Preview Network address); to receive 10,000 tADA per day.

For tINDY, you may go to the [Sundaeswap DEX](https://testnet.sundaeswap.finance/), and swap your tADA for tINDY (Policy ID: fa3eff2047fdf9293c5feef4dc85ce58097ea1c6da4845a351535183).