# OpenZeppelin

**Canonical:** https://apis.io/providers/openzeppelin/  
**Website:** https://www.openzeppelin.com/  
**APIs profiled:** 9

OpenZeppelin is a Web3 security platform providing tools for secure smart contract development, deployment, monitoring, and automation. The platform includes OpenZeppelin Contracts (battle-tested Solidity libraries), Defender (a developer security platform for auditing, deploying, and operating blockchain applications), the open-source OpenZeppelin Relayer for transaction relay infrastructure across EVM, Solana, and Stellar networks, and OpenZeppelin Monitor for real-time on-chain activity detection and alerting. Defender is sunsetting on July 1, 2026, with users migrating to the open-source Relayer and Monitor projects.

## Kin Score — 50.4 / 100 (developing)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 50.4).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 59.9 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 47.4 |
| Developer Ergonomics | 26.2 |
| Commercial Clarity | 81.6 |
| Access Clarity | 81.6 |

## Agent readiness — 41.9 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (9)

- **OpenZeppelin Monitor API** — OpenZeppelin Monitor is an open-source blockchain monitoring service that watches for specific on-chain activities and triggers notifications based on configurable conditions. I...
- **OpenZeppelin Contracts API Reference** — The OpenZeppelin Contracts library provides a comprehensive collection of modular, reusable, and secure Solidity smart contracts for building decentralized applications. The API...
- **OpenZeppelin Health API** — Health is responsible for showing the health of the relayers.
- **OpenZeppelin Metrics API** — Metrics are responsible for showing the metrics related to the relayers.
- **OpenZeppelin Networks API** — Networks represent blockchain network configurations including RPC endpoints and network-specific settings.
- **OpenZeppelin Notifications API** — Notifications are responsible for showing the notifications related to the relayers.
- **OpenZeppelin Plugins API** — Plugins are TypeScript functions that can be used to extend the OpenZeppelin Relayer API functionality.
- **OpenZeppelin Relayers API** — Relayers are the core components of the OpenZeppelin Relayer API. They are responsible for executing transactions on behalf of users and providing a secure and reliable way to i...
- **OpenZeppelin Signers API** — Signers are responsible for signing the transactions related to the relayers.

## Agentic access (1)

- **Openzeppelin Agentic Access** — 43 operations · 22 acting

## Security (3)

- **Openzeppelin Authentication** — http · 1 scheme
- **Openzeppelin Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Openzeppelin Trust Center** — SOC 2, ISO 27001

## Plans (1)

- **Plans**

## Tags

Web3, Smart Contracts, Blockchain, Security, Ethereum, DeFi, Solidity, Relayer, Monitoring, Auditing

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/openzeppelin/). Scores are computed from the provider's own public artifacts under a published rubric.