Loopring (LRC) has released a developer guide, stating that L2 and DEX history data can still be queried via The Graph (GRT) even after its own Layer 2 (L2) termination. According to Loopring, existing services such as explorer.loopring.io, api3.loopring.io, and dev.loopring.io are offline, but historical data including accounts, balances, blocks, transfers, trades, AMM pools, and NFTs are directly indexed from Ethereum L1 and provided through The Graph's decentralized network. The data can be accessed with only a free The Graph API key. Loopring explained that its existing official explorer also used the same The Graph subgraph from the beginning, not a proprietary database operated by Loopring, and what was terminated this time was merely a proxy that relayed API requests to prevent API keys from being exposed, not the data source itself.
