Sign in

At the moment the Toucan UI uses the Metamask browser extension to sign in and connect to the Polygon network. We will add alternative modes to sign in soon.
To prepare this, make sure you have Polygon mainnet selected as a network to connect to in Metamask. This explainer on how to set up the connection with Polygon has worked for most of our users.
  1. 1.
    Go to
  2. 2.
    Click "Connect wallet", then select a wallet type.
  3. 3.
    Select the account to sign in with, and connect. You will need to sign a message to authenticate your account.
  4. 4.
    You should now be signed in to the Toucan UI with your Ethereum account.
Note: sign-in may exhibit unexpected behavior if you're logged in with multiple accounts. Only log in with one account. You can disconnect from the site in Metamask.
We've also found some unexpected behavior if you sign in with Metamask connected to the wrong network. Make sure you're connected to Polygon. Typically reloading resolves the issue.