How developers actually access blockchain data (beyond RPC)

Accessing blockchain data is harder than it looks. Most developers start with RPC. It works for simple reads, such as fetching a transaction or calling a smart contract. But if you're trying something more complicated, like: “Show all USDC transfers over $10,000 in the last 24 hours” RPCs may not be the best option. Why? Because blockchains are not designed for querying. They are designed for writing and verifying data. The data exposed by nodes is encoded, fragmented, and optimized for execution instead of efficient retrieval. The 5 ways teams actually access blockchain data In practice, there are only a few approaches: 1. RPC Best for: simple lookups Limitation: no aggregation, slow for large queries 2. Block explorers Good for manual inspection Not usable as infrastructure 3. Data APIs Fast integration for common patterns Limited flexibility 4. Subgraphs Custom indexing for protocol-specific logic Flexible, but performance depends heavily on infrastructure 5. SQL Best for analytics