Notional V3 Subgraph API (Arbitrum)
GraphQL subgraph API for querying Notional V3 on-chain data on Arbitrum One via The Graph Studio. Notional V3 launched primarily on Arbitrum and this endpoint provides the most comprehensive V3 dataset including leveraged vault positions, fixed-rate lending pools, fCash positions, nToken portfolio holdings, and interest rate analytics. No authentication required.