# Notional V3 Subgraph API (Arbitrum)

**Canonical:** https://apis.io/apis/notional/notional-v3-subgraph-api-arbitrum/  
**Provider:** Notional Finance — https://apis.io/providers/notional/  
**Base URL:** https://api.studio.thegraph.com/query/60626/notional-v3-arbitrum/version/latest  
**Documentation:** https://docs.notional.finance/v3-technical-docs/subgraph-guides/notional-v3-subgraphs

Notional V3 Subgraph API (Arbitrum) is one of 4 APIs that [Notional Finance](https://apis.io/providers/notional/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include GraphQL, Subgraph, Arbitrum, V3, and Leveraged Vaults. The published artifact set on APIs.io includes API documentation.

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.

## Machine-readable artifacts (3)

- **Documentation** — https://docs.notional.finance/v3-technical-docs/subgraph-guides/notional-v3-subgraphs
- **GraphQL** — https://api.studio.thegraph.com/query/60626/notional-v3-arbitrum/version/latest
- **Explorer** — https://thegraph.com/explorer/subgraphs/4oVxkMtN4cFepbiYrSKz1u6HWnJym435k5DQRAFt2vHW?view=About&chain=arbitrum-one

## Other Notional Finance APIs (3)

- [Notional V2 Subgraph API (Mainnet)](https://apis.io/apis/notional/notional-v2-subgraph-api-mainnet/)
- [Notional V3 Subgraph API (Mainnet)](https://apis.io/apis/notional/notional-v3-subgraph-api-mainnet/)
- [Notional Typescript SDK](https://apis.io/apis/notional/notional-typescript-sdk/)

## Tags

GraphQL, Subgraph, Arbitrum, V3, Leveraged Vaults, fCash, Fixed Rate, Yield

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/notional/notional-v3-subgraph-api-arbitrum/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/notional/.