Uniblock JSON-RPC API

The Uniblock JSON-RPC API provides a single endpoint for standard JSON-RPC calls across hundreds of blockchain networks. Rather than managing individual node provider connections for each chain, developers can send JSON-RPC requests through Uniblock which automatically selects the best upstream node provider. This supports standard Ethereum and EVM-compatible JSON-RPC methods, as well as Solana and other chain-specific RPC interfaces, with built-in failover and automatic retries.