Fuel GraphQL API
Fuel Overview
Fuel is a modular execution layer designed to scale Ethereum by separating transaction execution from consensus and data availability. At its core is the FuelVM, a purpose-built virtual machine that uses a UTXO model and parallel execution to process transactions concurrently across multiple CPU threads.
What distinguishes Fuel is its use of GraphQL instead of traditional JSON-RPC for blockchain interactions, offering more precise and flexible data querying. The platform also introduces Sway, a Rust-based smart contract language designed specifically for the FuelVM.
Interacting with Fuel's APIs
Fuel does not use traditional JSON-RPC methods for blockchain interactions. Instead, it leverages GraphQL, which provides more flexible and precise data querying capabilities. This allows developers to request exactly the data they need in a single query, reducing overhead and improving efficiency.
The Quicknode Fuel documentation is continuously evolving as the chain undergoes upgrades and changes, so we highly recommend cross-referencing with the official Fuel documentation for the latest updates and GraphQL query examples.
Make Fuel API Calls
The quickest way to start building on Fuel is to create a Quicknode endpoint and send your first GraphQL request.
Quicknode provides managed Fuel endpoints, giving you immediate access to Fuel Mainnet and Sepolia Testnet without the overhead of running infrastructure. These endpoints offer:
- High reliability – globally distributed infrastructure designed to minimize downtime
- Enhanced performance – optimized latency and request handling for production-grade apps
- Integrated ecosystem – additional functionality through specialized APIs (add-ons) on the Quicknode Marketplace and products like Streams
Visit the QuickStart page to create your endpoint and send your first request.
Supported Networks
Quicknode provides access to the following Fuel networks:
Complete reference for developers building on Fuel with Quicknode:
QuickStart
Get started with Fuel quickly. Follow our step-by-step quickstart to set up your endpoint and make your first API request.
Provider Endpoints
Learn how to configure and manage your Fuel endpoints for optimal performance and reliability.
API Overview
Explore supported APIs, networks, Quicknode products, and enhanced API features for building powerful applications.
Marketplace
Discover and integrate powerful add-ons and tools from the Quicknode Marketplace to enhance your web3 applications.
Endpoint Security
Secure your endpoints with authentication, whitelisting, and best security practices.