# EOSIO

An open source smart contract platform

Repository: https://github.com/EOSIO/eos
Canonical: https://ross.abutalabs.com/products/eosio
Homepage: https://developers.eos.io/manuals/eos
Language: C++
License: MIT
License Family: permissive
Topics: eosio
Archived: true
Last push: 2022-07-27T00:17:50+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3437, "days_push": 1499, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 11173, forks 3604 (observed 2026-08-28T04:10:46.285667+00:00)

## What it is
EOSIO is an open-source blockchain smart contract platform written in C++ that executes contracts via WebAssembly. It provides high-performance decentralized application infrastructure with fast block confirmation, BFT finality, and role-based permissions.

## Use cases
- build and deploy blockchain-based decentralized applications
- run a block-producing node on an EOSIO network
- develop and deploy smart contracts compiled to WebAssembly
- set up a local blockchain development and test environment
- implement hierarchical role-based permission systems for on-chain actions
- interact with an EOSIO chain via CLI and RPC from applications

## When to choose
- you need a high-throughput smart contract platform with sub-second block confirmation
- you want free, rate-limited transactions for dApp users
- you need fine-grained, hierarchical account permissions
- you are building on an existing EOSIO-based chain or testnet

## When to avoid
- you need EVM/Solidity compatibility or Ethereum tooling
- you want a platform with large active community momentum - development activity has slowed since 2022
- you need support for modern OS versions beyond those officially listed
- you want a fully permissionless public chain out of the box - Block.one does not launch public chains

## Facets
- artifact type: framework
- maturity: maintenance
- function: blockchain, wasm, cryptography, cli, http-server, rpc
- domain: blockchain, developer-tools, microservices
- platform: cpp, cli
- tags: smart-contract-platform, dapp-development, webassembly, block-producer, decentralized-applications, eosio, smart-contracts, cryptocurrency, linux, macos

## Member repositories
- EOSIO/eos (main) score 10
- EOSIO/Documentation (docs) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:46.285667+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:16:43.632032+00:00, confidence not recorded.
  - readme: https://github.com/EOSIO/eos (fetched 2026-08-28T04:10:46.285667+00:00, sha 9e4a9645ff7c)
- Data as of 2026-08-30T08:39:29.467469+00:00.