Ethereum Launches zkAPI, Base Rolls Out Cobalt, Balancer and Blast to Shut Down

What happened

Ethereum launched zkAPI, Base rolled out its Cobalt upgrade, and Balancer and Blast announced shutdowns, according to a weekly roundup covering operational and security implications.

Confirmed

Global impact / market context

Ethereum's new zkAPI could change how developers build privacy tools, while Balancer and Blast shutting down may push users to withdraw funds and move to rival platforms, shifting activity and fees across these networks.

Analyst inference

These events show crypto infrastructure is still shifting through upgrades and closures. Investors may weigh whether Ethereum and Base upgrades attract developers, while shutdowns raise questions about whether smaller platforms can sustain enough users and revenue.

Analyst inference

What to watch

1. Watch for official details on Ethereum's zkAPI launch and Base's Cobalt upgrade, since the article gives no technical specifications or timelines. Confirmed
2. Watch for withdrawal deadlines and user guidance from Balancer and Blast, because shutdowns typically require users to move funds before services stop. Proposed
3. Watch whether developers and users migrate toward Ethereum and Base after the shutdowns, which could concentrate activity and fees on fewer networks. Analyst inference

Affected assets

• BTC — Bitcoin
• ETH — Ethereum

Evidence

• btcusa.com