vocabulary: name: Sei API Vocabulary description: Key terms and concepts used across Sei blockchain APIs url: https://sei.io terms: # Core Blockchain Concepts - term: sei label: Sei description: The native token and blockchain network built on Cosmos SDK with EVM compatibility type: Token - term: pacific-1 label: Pacific-1 Mainnet description: The Sei production mainnet network identifier type: Network - term: atlantic-2 label: Atlantic-2 Testnet description: The Sei test network identifier for development and testing type: Network - term: twin-turbo-consensus label: Twin Turbo Consensus description: Sei's dual-track consensus mechanism enabling sub-second block finality (~400ms) type: Protocol - term: parallelized-evm label: Parallelized EVM description: Sei's parallelization engine that allows concurrent transaction execution while maintaining EVM compatibility type: Feature - term: sei-db label: SeiDB description: Sei's optimized database layer eliminating traditional performance bottlenecks type: Infrastructure # API Types - term: evm-json-rpc label: EVM JSON-RPC description: Ethereum-compatible JSON-RPC interface at evm-rpc.sei-apis.com for interacting with Sei's EVM layer type: APIProtocol endpoint: https://evm-rpc.sei-apis.com - term: cosmos-lcd label: Cosmos LCD (Light Client Daemon) description: Cosmos SDK REST API at rest.sei-apis.com for querying blockchain state type: APIProtocol endpoint: https://rest.sei-apis.com # EVM Concepts - term: eth-block label: Block description: A unit of blockchain data containing a set of transactions in the EVM layer type: DataType api: EVM JSON-RPC - term: eth-transaction label: Transaction description: A signed instruction to transfer value or invoke a smart contract on the EVM layer type: DataType api: EVM JSON-RPC - term: smart-contract label: Smart Contract description: Self-executing code deployed on Sei's EVM layer type: DataType api: EVM JSON-RPC - term: gas label: Gas description: Unit measuring computational work required to execute EVM operations type: Concept api: EVM JSON-RPC - term: sei-address label: Sei Address description: Native Cosmos bech32 address format (sei1...) type: DataType - term: evm-address label: EVM Address description: Ethereum-compatible hex address (0x...) on Sei's EVM layer type: DataType # Cosmos SDK Concepts - term: denom label: Denomination description: Token identifier in Cosmos SDK (e.g., usei for micro-SEI) type: DataType api: Cosmos REST API - term: validator label: Validator description: Network node responsible for block production and staking in the Cosmos layer type: Entity api: Cosmos REST API - term: delegation label: Delegation description: Staking of SEI tokens to a validator to earn rewards and participate in governance type: Action api: Cosmos REST API - term: governance-proposal label: Governance Proposal description: On-chain proposal for network parameter changes or upgrades type: Entity api: Cosmos REST API - term: ibc-channel label: IBC Channel description: Inter-Blockchain Communication channel connecting Sei to other Cosmos chains type: Entity api: Cosmos REST API # DEX Concepts - term: dex-market label: DEX Market description: Trading pair/market defined on Sei's native on-chain DEX type: Entity api: Cosmos REST API - term: order label: Order description: Buy or sell order placed on Sei's native DEX type: Entity api: Cosmos REST API - term: order-book label: Order Book description: Collection of open buy and sell orders for a DEX market type: Entity api: Cosmos REST API # Infrastructure - term: lcd-endpoint label: LCD Endpoint description: Public REST endpoint at rest.sei-apis.com (port 1317) for Cosmos SDK queries type: Endpoint - term: evm-rpc-endpoint label: EVM RPC Endpoint description: Public JSON-RPC endpoint at evm-rpc.sei-apis.com for Ethereum-compatible calls type: Endpoint - term: rate-limit label: Rate Limit description: Public endpoint limit of 15 requests per second for both EVM and Cosmos APIs type: Constraint - term: cosmwasm label: CosmWasm description: WebAssembly smart contract platform integrated with Sei's Cosmos layer type: Feature - term: wasm-contract label: WASM Contract description: WebAssembly smart contract deployed on Sei's Cosmos layer via CosmWasm type: DataType api: Cosmos REST API