# Foundation Subgraph API

**Canonical:** https://apis.io/apis/foundation/foundation-subgraph-api/  
**Provider:** Foundation — https://apis.io/providers/foundation/  
**Base URL:** https://api.thegraph.com/subgraphs/name/f8n/fnd  
**Documentation:** https://thegraph.com/hosted-service/subgraph/f8n/fnd

Foundation Subgraph API is one of 2 APIs that [Foundation](https://apis.io/providers/foundation/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include GraphQL, NFT, Subgraph, The Graph, and Auctions. The published artifact set on APIs.io includes API documentation, a GitHub repository, and rate-limit docs.

GraphQL API powered by The Graph protocol that indexes all Foundation NFT marketplace activity on Ethereum mainnet. Supports queries for NFTs, creators, collectors, auctions, bids, offers, buy-now listings, percent splits, FETH escrow balances, and full event history. Developers use this as the primary programmatic interface to Foundation on-chain data.

## Machine-readable artifacts (9)

- **Documentation** — https://github.com/f8n/fnd-protocol
- **GitHubOrganization** — https://github.com/f8n
- **GitHubRepository** — https://github.com/f8n/fnd-protocol
- **GitHubRepository** — https://github.com/f8n/fnd-protocol-examples
- **Plans** — https://raw.githubusercontent.com/api-evangelist/foundation/refs/heads/main/plans/plans.yml
- **RateLimits** — https://raw.githubusercontent.com/api-evangelist/foundation/refs/heads/main/rate-limits/rate-limits.yml
- **FinOps** — https://raw.githubusercontent.com/api-evangelist/foundation/refs/heads/main/finops/finops.yml
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/foundation/refs/heads/main/graphql/foundation-graphql.md
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/foundation/refs/heads/main/apis.yml

## Other Foundation APIs (1)

- [Foundation Smart Contract API](https://apis.io/apis/foundation/foundation-smart-contract-api/)

## Tags

GraphQL, NFT, Subgraph, The Graph, Auctions, Digital Art

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