chains is a metadata registry that provides standardized information about blockchain networks.
The project solves the problem of fragmented and inconsistent chain metadata across the Ethereum ecosystem. Different applications and services need reliable, canonical data about blockchain networks—including chain IDs, RPC endpoints, block explorers, and other network parameters. The tool works by maintaining a centralized repository of chain metadata organized in a structured format, allowing developers to reference authoritative information rather than duplicating or guessing at network details.
Developers building Ethereum applications, wallets, or infrastructure tools should adopt this registry when they need to support multiple chains and want to avoid maintaining their own chain configuration data. It suits projects that integrate with various EVM-compatible networks and need a single source of truth for network parameters. The registry is particularly valuable for applications that dynamically add chain support or need to stay synchronized with network information across the ecosystem.
The project maintains an active contribution model with regular updates to chain metadata. Pull requests are reviewed and merged to incorporate new chains and update existing network information. The repository serves as a collaborative resource where the community contributes corrections and additions to keep the metadata current and accurate.