Sei

aid: sei
name: Sei
description: >-
  Sei is a high-performance Layer 1 blockchain optimized for trading and
  decentralized exchange (DEX) applications. It is the first parallelized EVM
  blockchain, delivering sub-second block times (~400ms), 100 MGas/s throughput,
  and full Ethereum compatibility without code changes. Sei combines Twin Turbo
  Consensus, a parallelization engine, and SeiDB to eliminate traditional
  performance bottlenecks. Developers can interact with Sei through EVM
  JSON-RPC endpoints (Ethereum-compatible) and Cosmos REST/LCD endpoints for
  querying markets, orders, accounts, staking, governance, and DEX state on the
  pacific-1 mainnet and atlantic-2 testnet networks.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Blockchain
  - Layer 1
  - EVM
  - DeFi
  - DEX
  - Trading
  - Cosmos
  - Web3
url: >-
  https://raw.githubusercontent.com/api-evangelist/sei/refs/heads/main/apis.yml
specificationVersion: '0.19'
created: '2026-06-13'
modified: '2026-06-13'
apis:
  - aid: sei:sei-evm-json-rpc-api
    name: Sei EVM JSON-RPC API
    description: >-
      Ethereum-compatible JSON-RPC API for interacting with Sei's EVM layer.
      Supports standard Ethereum methods for sending transactions, querying
      account balances and code, retrieving block and transaction data, managing
      log filters, estimating gas, and tracing transaction execution. Also
      includes Sei-specific extensions for cross-VM address resolution and
      synthetic transaction lookups. The public mainnet endpoint is rate-limited
      to 15 requests per second; dedicated endpoints are available through
      infrastructure providers for production workloads.
    humanURL: https://docs.sei.io/evm/reference
    baseURL: https://evm-rpc.sei-apis.com
    tags:
      - EVM
      - JSON-RPC
      - Ethereum
      - Blockchain
      - Transactions
      - Smart Contracts
    properties:
      - type: Documentation
        url: https://docs.sei.io/evm/reference
      - type: GettingStarted
        url: https://docs.sei.io
      - type: RateLimits
        url: rate-limits/sei-evm-json-rpc-api-rate-limits.yml
      - type: JSONLd
        url: json-ld/sei.jsonld
      - type: Vocabulary
        url: vocabulary/sei-vocabulary.yml
    contact:
      - type: GitHub
        url: https://github.com/sei-protocol/sei-chain
      - type: Discord
        url: https://discord.gg/sei

  - aid: sei:sei-cosmos-rest-api
    name: Sei Cosmos REST API (LCD)
    description: >-
      Cosmos SDK REST API (Light Client Daemon / LCD) exposing HTTP endpoints
      for querying Sei blockchain state including bank balances and token supply,
      staking delegations and validator info, governance proposals, distribution
      rewards and commissions, minting parameters, IBC channels, and Sei-native
      DEX markets and orders. Available on mainnet (pacific-1) at port 1317 via
      public infrastructure providers. The public REST endpoint is rate-limited
      to 15 requests per second. Swagger/OpenAPI documentation can be enabled
      on self-hosted nodes.
    humanURL: https://docs.sei.io/cosmos-sdk/api
    baseURL: https://rest.sei-apis.com
    tags:
      - Cosmos
      - LCD
      - REST
      - Blockchain
      - Staking
      - Governance
      - DEX
      - Accounts
    properties:
      - type: Documentation
        url: https://docs.sei.io/cosmos-sdk/api
      - type: RateLimits
        url: rate-limits/sei-cosmos-rest-api-rate-limits.yml
      - type: OpenAPI
        url: openapi/sei-cosmos-rest-api.yml
      - type: OpenAPI
        url: openapi/sei-tendermint-rpc.yml
    contact:
      - type: GitHub
        url: https://github.com/sei-protocol/sei-chain
      - type: Discord
        url: https://discord.gg/sei

common:
  - type: Website
    url: https://sei.io
  - type: Documentation
    url: https://docs.sei.io
  - type: GitHub
    url: https://github.com/sei-protocol
  - type: GitHub
    url: https://github.com/sei-protocol/sei-chain
  - type: Discord
    url: https://discord.gg/sei
  - type: Blog
    url: https://blog.sei.io
  - type: X
    url: https://x.com/SeiNetwork
  - type: BlockExplorer
    url: https://www.seiscan.app
  - type: Faucet
    url: https://docs.sei.io/getting-started/faucet
  - type: StatusPage
    url: https://status.sei.io
  - type: FinOps
    url: finops/sei-finops.md

maintainers:
  - FN: API Evangelist
    url: https://apievangelist.com
    email: [email protected]