
Cardano Dev Wallet by MLabs
A browser extension that implements CIP-30 Cardano wallet connector
You'll need Firefox to use this extension
Extension Metadata
Screenshots


About this extension
A browser extension that implements CIP-30 Cardano wallet connector with a UI that is more convenient for developers than mainstream user-oriented wallets.
- Uses Blockfrost or Ogmios+Kupo as the backend
- Works with custom Cardano networks
- Allows to inspect CIP-30 method logs
- Allows to override CIP-30 API endpoint responses
- Allows to load private keys or mnemonics
- Uses Blockfrost or Ogmios+Kupo as the backend
- Works with custom Cardano networks
- Allows to inspect CIP-30 method logs
- Allows to override CIP-30 API endpoint responses
- Allows to load private keys or mnemonics
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This add-on needs to:
- Access your data for all websites
More information
- Add-on Links
- Version
- 1.4.0
- Size
- 2.56 MB
- Last updated
- 6 days ago (Jun 2, 2025)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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Release notes for 1.4.0
1.4.0
1.3.0
1.2.0
SundaeSwap and many other dApps seem to be not happy if the API object
returned by
They could be doing something like
the presence of internal methods present in the dev wallet, or they
could be doing something like
Not sure of the exact mechanism, but returning a plain object seems to
fix this.
1.1.0
- Update cardano-serialization-lib to 14.1.2
- Update cardano-message-signing-browser to 1.1.0
- Support Conway transactions
1.3.0
- Make UTxO override affect the balance
Previously, the utxo list override only affected thegetUtxos()
call and not the
getBalance()
call.
The UI only allows overriding the ADA value of the balance.
With this change, the users will be able to use the same UI to override the token balance returned bygetBalance()
.
1.2.0
- Fix SundaeSwap hanging (#17)
SundaeSwap and many other dApps seem to be not happy if the API object
returned by
wallet.enable()
is not a plain object.They could be doing something like
Object.keys(api)
which trips up due tothe presence of internal methods present in the dev wallet, or they
could be doing something like
apiCopy = {...api}
.Not sure of the exact mechanism, but returning a plain object seems to
fix this.
1.1.0
- Fix bugs in the Ogmios/Kupo backend:
- UTxO index was incorrect.
- Tokens were missing from the UTxO list.
- Allow specifying custom endpoint for blockfrost.
- Auto activate newly created accounts and backends if there's none active.
- Inject the wallet before any script in the page is run.
- Add seperators in UTxO list, wallets list and network backends list.
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