The Graph launches Substreams Hosted Stores for lookup mid-stream

The Graph (via StreamingFast) introduced Hosted Stores, a managed, block-aware key/value store for Substreams modules. It lets a module look data up mid-stream without recomputing it on every block, and is reachable over gRPC or as a store input.

Hosted Stores removes the need to maintain a self-hosted store sidecar when a Substreams module needs on-chain lookups while executing, cutting infrastructure overhead for pipelines that previously had to fetch or re-derive state across blocks.