OpenZeppelin Contracts
Some data may be outdated — see provenance labels.
OpenZeppelin Contracts is a library for secure smart contract development. observed · 2026-09-24
Health v2 · maintenance only
86/100
- Activity 96
- Release rhythm 64
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 99
- age_days: 3732
- days_rel: 83
- days_push: 27
- n_releases_24m: 8
Adoption not part of the score
27253 stars · 12402 forks observed · 2026-09-24
What it is AI-extracted, prompt v1, taxonomy v1, 2026-10-05, confidence 0.97
OpenZeppelin Contracts is a widely used open‑source library of audited Solidity smart contracts for Ethereum and EVM‑compatible blockchains. It provides implementations of token standards, access control, and utilities to build secure decentralized applications.
Use cases
- Implement ERC20 or ERC721 tokens with minimal risk
- Add role‑based access control to a new smart contract
- Create upgradeable contracts using proxy patterns
- Reuse battle‑tested utilities for custom DeFi protocols
- Generate standard contract skeletons with the Contracts Wizard
When to choose
- You need a trusted, community‑vetted foundation for Solidity development
- Your project targets Ethereum or any EVM‑compatible blockchain
- Security and auditability are top priorities
- You want to follow standard token and access‑control patterns
When to avoid
- You are developing on non‑EVM blockchains without Solidity support
- You require a full‑stack framework rather than just contract libraries
- You need runtime features like on‑chain monitoring or relayer services (use OpenZeppelin Defender instead)
Facets
library · maturity active
security fintech blockchain cross-platform solidity ethereum evm erc-standards role-based-access upgradeable library smart-contract cryptocurrency
6 sources
- readme: https://github.com/OpenZeppelin/openzeppelin-contracts · fetched 2026-09-24 · 669b1a7b493c
- homepage: https://openzeppelin.com/contracts · fetched 2026-09-21 · 37702e99c25c
- site_page: https://docs.openzeppelin.com/ · fetched 2026-09-21 · 878c1d01266a
- site_page: https://www.openzeppelin.com/about-us · fetched 2026-09-21 · c6bf47525456
- site_page: https://www.openzeppelin.com/about · fetched 2026-09-21 · 7fb27095650c
- site_page: https://www.openzeppelin.com/faqs · fetched 2026-09-21 · 7f3dcf0c8e21
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| OpenZeppelin/openzeppelin-contracts | main | 86 |
| OpenZeppelin/openzeppelin-contracts-upgradeable | mirror | 86 |
For agents
markdown · JSON · MCP: product_card(name="OpenZeppelin/openzeppelin-contracts")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem