Overview
Introduction to the Fuel GraphQL API
The Fuel GraphQL API allows you to query the Fuel blockchain for a wide range of on-chain data. It can be used to query transactions, balances, block information, and more. You can also use it to simulate and submit transactions on the Fuel network.
GraphQL Playground
The playground is an interactive and graphical IDE that includes a reference for queries, mutations, and types. It also provides query validation and context for the underlying GraphQL schema.
You can test out the Fuel GraphQL API playground here:
Testnet: https://testnet.fuel.network/v1/playground
Mainnet: https://mainnet.fuel.network/v1/playground
RPC Endpoints
Here is a list of public RPC endpoints you can use to interact with Fuel, whether it's retrieving on-chain data or sending transactions.
| Provider | Testnet | Mainnet |
|---|---|---|
| Ankr | https://rpc.ankr.com/http/fuel_sepolia | https://rpc.ankr.com/http/fuel |
| Fuel | https://testnet.fuel.network/v1/graphql | https://mainnet.fuel.network/v1/graphql |
| QuickNode | https://fuel-public.fuel-sepolia.quiknode.pro/v1/graphql | https://fuel-public.fuel-mainnet.quiknode.pro/v1/graphql |
Note: The above endpoints are provided on a best effort basis. If you are running a commercial project, we highly recommend creating an account with one of the providers above to get enhanced support and rate limits.
Chain Id
A chain ID is a unique identifier assigned to a blockchain network, whether a testnet or a mainnet (Fuel Ignition), to ensure correct transaction signing and prevent replay attacks across chains.
Testnet: 0
Mainnet: 9889