OneSource Web3 API Reference

OneSource Web3 API schema visualization in GraphQL Voyager

GraphQL Endpoints

• Ethereum Mainnet: https://api.onesource.io/v1/ethereum/graphql
• Optimism: https://api.onesource.io/nftindexer/optimism/graphql
• Sepolia Testnet: https://api.onesource.io/nftindexer/sepolia/graphql

Queries

Explore the available queries to fetch data from the OneSource API. The root Query type defines all read operations.

Types

Learn about the GraphQL types used in the API, including objects, scalars and input types for interacting with the data.