Toast is a multi-ecosystem NFT data aggregator. It lets users browse assets from three independent corners of Web3 — Decentraland metaverse land, Oxmon gaming monsters and Rarible marketplace collectibles — through a single interface. The Graph protocol made this possible by serving as the universal data layer across all three.

In 2021, NFT data was fragmented. Each ecosystem had its own API surface, its own access patterns and its own schemas:

Decentraland exposed a marketplace subgraph, but querying it required understanding their entity model — estates, parcels, NFTs, ownership history.

Oxmon was a gaming project with its own subgraph, independent of any marketplace.

Rarible operated its own indexing infrastructure.

There was no single query layer that could reach across these worlds. To build a cross-ecosystem viewer, you either managed multiple RPC nodes, parsed custom JSON-RPC responses, or maintained your own indexers for each chain.

The Graph changed that.

Toast treated The Graph as its backend. Instead of wiring up three different APIs, it pointed GraphQL queries at three subgraphs — each independently maintained, each indexing a different slice of Ethereum:

EcosystemSubgraphWhat It Indexes

Decentralanddecentraland/marketplaceMetaverse estates — ownership, size, metadata

Oxmonninjashiroi/oxmonsOn-chain gaming monsters — traits, generation,

rarityRariblenikolaymalmal/raribleMarketplace rarities — token provenance

The application layer was deliberately thin: a set of GraphQL queries, a lightweight JavaScript frontend and a consistent card-based UI. The complexity lived in the subgraphs, not in the application.

Architecturally, Toast was a proof: the frontend was just the skin. The Graph was the skeleton.

Toast won the Graph Protocol Track at ETHCC 2021 not because it was technically ambitious, but because it demonstrated the composability thesis of The Graph:

A weekend-scale project could pull structured data from three independent ecosystems without managing a single indexer.

Each subgraph was built and maintained by a different team — Decentraland, Ninjashiroi and a community contributor. Toast consumed them all through the same protocol.

The same GraphQL syntax worked across land deeds, gaming NFTs and marketplace assets.

The project showed that The Graph was more than an indexing tool — it was the missing data layer for a multi-chain, multi-ecosystem Web3.

Protocol-level data aggregation — The Graph enabled a single application to speak one query language across three ecosystems.

Decentralized indexing — Each subgraph was hosted and maintained independently. Toast consumed them as public goods.

Rapid cross-ecosystem prototyping — The entire application was built in a hackathon weekend. The bottleneck was never data access.