[bug]: CoinbaseConnector no longer works with Base app (formerly Coinbase Wallet)

[dev-jaehan]

Description

The CoinbaseConnector from @reown/appkit-coinbase-react-native no longer works with the Base app (formerly Coinbase Wallet).

Since July 2025, Coinbase Wallet has been rebranded to "Base app" and existing Coinbase Wallet users were automatically migrated. The current CoinbaseConnector uses the legacy @coinbase/wallet-mobile-sdk, which is incompatible with the new Base app.

Symptoms:

• Base app opens successfully via deep link
• No approval screen appears in Base app - it just opens to the home screen
• When returning to the original app, no callback is received
• Connection never completes

Root cause:
The legacy @coinbase/wallet-mobile-sdk is designed for the old Coinbase Wallet app. The new Base app requires:

• Base Account SDK (@base-org/account), or
• Mobile Wallet Protocol (@mobile-wallet-protocol/client)

References:

• Coinbase Wallet Becomes 'Base App' (July 2025)
• Base Migration Guide

AppKit SDK version

@reown/appkit-coinbase-react-native 2.0.1 @reown/appkit-ethers-react-native 2.0.1 @reown/appkit-react-native 2.0.1

Output of npx react-native info

System:
OS: macOS 24.6.0
CPU: Apple M3
Binaries:
Node: 22.x
npm: 10.x
npmPackages:
react: 19.0.0
react-native: 0.79.5
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: true
newArchEnabled: true

Expo Version (if applies)

Expo 52

Steps to reproduce

1. Configure CoinbaseConnector with @reown/appkit-coinbase-react-native
2. Open AppKit modal and select Coinbase Wallet
3. Base app opens but no approval screen appears
4. Return to original app - no callback received, connection does not complete

Snack, code example, screenshot, or link to a repository

metamask works fine

base_app_issue_compressed.mp4

[ignaciosantise]

hey @dev-jaehan are you sure about this? I was able to connect with Base wallet without issues. I think the docs you provided are talking about another SDK that they provide but we don't use. I tested on Android & iOS and it works well

ScreenRecording_01-21-2026.19-12-46_1.mov

[dev-jaehan]

hey @dev-jaehan are you sure about this? I was able to connect with Base wallet without issues. I think the docs you provided are talking about another SDK that they provide but we don't use. I tested on Android & iOS and it works well

ScreenRecording_01-21-2026.19-12-46_1.mov

I still can't get it to work, can you provide some example code?

[ignaciosantise]

Yes, here you have a sample app that uses the coinbase connector -> https://github.com/reown-com/react-native-examples/tree/main/dapps/W3MWagmi

[montossc]

I have the same problem @ignaciosantise . Here is what I used:
"@coinbase/wallet-mobile-sdk": "1.1.2",
"@reown/appkit-coinbase-wagmi-react-native": "1.2.2",
"@reown/appkit-wagmi-react-native": "1.2.2",
Platform: Android (haven't tested with iOS yet)
My code used to work well with old Coinbase.
Base app opens but no approval screen appears, and then ofcourse nothing happenned.

[ignaciosantise]

Sorry, but i'll need a sample repository so i can repro the issue locally. It still works for me. Did you add a universal link in the metadata object?

[0at]

I built the multichain example (https://github.com/reown-com/react-native-examples/tree/main/dapps/W3MWagmi) and get the same behaviour as the expo example. The deeplink goes to the base app but there is no request to reivew/approve. Metamask seems to work fine, but base will never get the request. I'm using a physical device to test on (if that makes any difference).

Environment below:
SDK Versions:
@reown/appkit-coinbase-react-native: 2.0.1
@reown/appkit-react-native: 2.0.1
@coinbase/wallet-mobile-sdk: 1.1.2
react-native-mmkv: 3.3.3

React Native info:
OS: Linux 6.8 Ubuntu 24.04.3 LTS
Node: 20.20.0
Yarn: 3.6.4
react: 19.1.0
react-native: 0.81.4
Android SDK: API 34, 36
hermesEnabled: true

Video here:

W3MWagmi_issue_511.mp4

[ignaciosantise]

@0at okey, i'll review this. Your Base wallet is different than mine despite i have the latest version on AppStore, so there might be an internal update thing i need to run

[ignaciosantise]

hey @dev-jaehan 👋 The issue is on Base Wallet side, apparently their new version doesn't support their own protocol yet (called MWP)

I couldn't find a lot of info about it, but this: https://farcaster.xyz/v/0xaf41dd58
So we'll just need to wait until they implement it again.