Ethereum and BNB Chain have emerged as the leading blockchains in terms of developer activity, despite a notable decline over the past month. According to Santiment data, Ethereum recorded 38.4K developer activity events, marking a 17.35% decrease, with 904 contributors, down by 11.89%. BNB Chain followed with 15.9K events, a 29.32% drop, and 478 contributors, a 14.64% decline. Polygon ranked third with 13.5K events, experiencing a 26.34% decrease, and 358 contributors, down by 13.32%. Other notable blockchains include Arbitrum, Solana, and Cosmos, all of which saw significant declines in developer activity and contributor numbers. Despite these decreases, these blockchains remain at the forefront of developer engagement in the crypto ecosystem.