The Graph announced extended blocks are now live on Ethereum, Base, BNB Smart Chain, HyperEVM, Arc, Robinhood, Polygon, Arbitrum One, OP Mainnet, Unichain, Linea, Monad, and more, per its Supported Networks page.
Extended blocks expose internal calls, balance changes and storage changes — data that otherwise requires debug_traceTransaction, the trace_ namespace, or state-diff tracers across archive state via RPC: expensive, throttled, and often gated behind premium tiers or unavailable. The Graph's stream makes this data accessible without re-tooling the read layer.