# fuel-core | Fuel Labs | Knowledge Base | Instagit Rust full node implementation of the Fuel v2 protocol. GitHub Stars: 57.3k Repository: https://github.com/FuelLabs/fuel-core --- ## Articles ### [Main Entry Point for Running a Fuel Core Node: Binary Startup Path Explained](/FuelLabs/fuel-core/fuel-core-node-entry-point) Discover the main entry point for running a Fuel Core node. Learn how the binary startup path initializes the node service via the main function and CLI arguments. - Tags: internals - Published: 2026-03-06 ### [What Is DA Compression in Fuel Core? Architecture and Implementation Guide](/FuelLabs/fuel-core/fuel-core-data-availability-compression) Discover DA compression in Fuel Core, a storage optimization that secures historic block data off-chain while guaranteeing availability. Learn about its architecture and implementation. - Tags: internals - Published: 2026-03-06 ### [How the Gas Price Service in Fuel Core Adjusts Prices Based on Network Activity](/FuelLabs/fuel-core/fuel-core-gas-price-service-network-activity-adjustment) Discover how Fuel Core's gas price service dynamically adjusts fees based on network activity. Learn about sliding-window averages and scaling for responsive transaction costs. - Tags: internals - Published: 2026-03-06 ### [How the Fuel Core Gas Price Algorithm Works: Components and Implementation](/FuelLabs/fuel-core/fuel-core-gas-price-algorithm-explained) Explore the Fuel Core gas price algorithm. Understand its pluggable components, trait-based interface, and swappable implementations for calculating transaction fees and block validation. - Tags: internals - Published: 2026-03-06 ### [How the Relayer Service Enables Communication Between Fuel and Ethereum](/FuelLabs/fuel-core/fuel-core-relayer-ethereum-communication) Discover how the relayer service bridges Fuel and Ethereum. Learn how it fetches events, stores them, and exposes them to the WASM executor for seamless cross-chain communication. - Tags: how-to-guide - Published: 2026-03-06 ### [What Is the Relayer Service in Fuel Core for Cross-Chain Communication?](/FuelLabs/fuel-core/fuel-core-relayer-service-cross-chain) Discover the relayer service in Fuel Core. It secures cross-chain communication by bridging Fuel with data-availability layers like Ethereum. Learn how it processes finalized events. - Tags: deep-dive - Published: 2026-03-06 ### [How to Interact with Fuel Core Using the GraphQL API: A Complete Developer's Guide](/FuelLabs/fuel-core/interacting-fuel-core-graphql-api) Learn to interact with Fuel Core using its GraphQL API. Query blockchain data, submit transactions, and subscribe to events with FuelClient or HTTP. Your complete developer guide. - Tags: how-to-guide - Published: 2026-03-06 ### [Fuel Core P2P Synchronization Logic: Architecture and Implementation](/FuelLabs/fuel-core/fuel-core-p2p-synchronization-components) Explore Fuel Core's P2P synchronization logic architecture. Learn about block propagation, transaction gossiping, and peer management using a libp2p-based stack. - Tags: architecture - Published: 2026-03-06 ### [How the P2P Networking Service in Fuel Core Facilitates Node Communication](/FuelLabs/fuel-core/fuel-core-p2p-networking-service) Discover how the P2P networking service in Fuel Core uses libp2p for efficient node communication, including gossip transactions and data requests on demand. - Tags: internals - Published: 2026-03-06 ### [How Fuel Core Manages the Consensus Key for Signing Blocks: A Complete Guide to SignMode](/FuelLabs/fuel-core/fuel-core-consensus-key-management) Discover how Fuel Core manages the consensus key for signing blocks using SignMode, supporting local keys, KMS, or disabled signing. Learn about FuelBlockSigner and Proof-of-Authority. - Tags: deep-dive - Published: 2026-03-06 ### [How to Configure Block Production Timings in Fuel Core's PoA Module](/FuelLabs/fuel-core/fuel-core-poa-block-production-timing-configuration) Learn how to configure block production timings in Fuel Core's PoA module using the Trigger enum and CLI flags. Optimize your Fuel network efficiency today. - Tags: how-to-guide - Published: 2026-03-06 ### [Proof of Authority (PoA) Consensus Mechanism in Fuel Core: Architecture and Implementation](/FuelLabs/fuel-core/fuel-core-proof-of-authority-consensus) Learn how Fuel Core implements Proof of Authority consensus. Discover how signed block headers and authority validation ensure secure and authorized blockchain operations. - Tags: architecture - Published: 2026-03-06 ### [Fuel Core Database Schema: A Comprehensive Guide to the Storage Layer](/FuelLabs/fuel-core/fuel-core-storage-database-schema) Explore the Fuel Core database schema, a type-safe key-value storage layer defined in fuel-core-storage. Understand how logical entities map to tables with specific Key and Value types for efficient data management. - Tags: architecture - Published: 2026-03-06 ### [Fuel Core Storage Backends: Local RocksDB and S3 Implementation Guide](/FuelLabs/fuel-core/fuel-core-storage-backends-implementation) Explore Fuel Core's storage backends, Local RocksDB & S3. Learn how to implement embedded key-value storage and write blocks to Amazon S3 with this comprehensive guide. - Tags: how-to-guide - Published: 2026-03-06 ### [Understanding Fuel Core Block Producer Modes of Operation: Executor, Manual, and Automatic Triggers](/FuelLabs/fuel-core/fuel-core-block-producer-modes) Explore Fuel Core block producer modes: Executor for state control, Manual for requests, and Automatic for scheduling. Understand how each mode governs block production on the Fuel blockchain. - Tags: deep-dive - Published: 2026-03-06 ### [How Block Production Is Managed in Fuel Core by the Producer Service](/FuelLabs/fuel-core/fuel-core-block-production-producer-service) Discover how the Fuel Core producer service manages block production. Learn about transaction sourcing, header construction, and state transition execution for efficient block creation. - Tags: internals - Published: 2026-03-06 ### [Fuel Core TxPool Transaction Management Features: A Complete Technical Guide](/FuelLabs/fuel-core/fuel-core-txpool-features) Discover Fuel Core txpool transaction management features like validation rules, resource limits, TTL eviction, collision detection, blacklisting, and async verification. Optimize your transaction flow. - Tags: deep-dive - Published: 2026-03-06 ### [How Txpool v2 Manages Pending Transactions in Fuel Core](/FuelLabs/fuel-core/fuel-core-txpool-v2-transaction-management) Discover how Fuel Core's txpool v2 manages pending transactions. Learn about its PendingPool module, dependency tracking, and automatic on-chain promotion of UTXOs and contracts. - Tags: internals - Published: 2026-03-06 ### [How the Transaction Executor in Fuel Core Works: Native and WASM Execution Modes Explained](/FuelLabs/fuel-core/fuel-core-transaction-executor-how-it-works) Understand the Fuel Core transaction executor an upgradable dual-mode engine executing blocks via native Rust or sandboxed WASM unlocking seamless protocol upgrades. Learn how it works. - Tags: deep-dive - Published: 2026-03-06 ### [What Is the Role of the FuelService in Fuel Core? The Node Orchestrator Explained](/FuelLabs/fuel-core/fuel-service-role-fuel-core) Discover the role of FuelService in Fuel Core. Learn how this orchestrator bootstraps services like transaction pool, P2P, and consensus, managing their lifecycle and API. - Tags: deep-dive - Published: 2026-03-06 ### [How Fuel Core Implements a Monorepo Structure with Multiple Rust Crates](/FuelLabs/fuel-core/fuel-core-monorepo-structure) Discover how Fuel Core leverages Rust crates within a monorepo structure. Learn about its Cargo workspace, unified dependency management, and atomic cross-crate changes for efficient development. - Tags: internals - Published: 2026-03-06