# Blockscout vs OpenZeppelin Contracts

| Attribute | Blockscout | OpenZeppelin Contracts |
|---|---|---|
| **Vioscale score** | 51.8 (16% (low)) | 32 (18% (low)) |
| activity.commits_last_30d | 65 | 0 |
| adoption.dependent_repos | 0 | - |
| adoption.github_stars | 4,648 | 205 |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | An open-source block explorer that allows users to search transactions, verify smart contracts, and access analytics across multiple EVM-compatible blockchains from a single interface, with support for hundreds of chains, rollups, L2s, and testnets. | Provides battle-tested smart contract code implementing ERC standards and security best practices for blockchain development, supporting Solidity, Cairo, Stellar, Sui, and other platforms. |
| features.capabilities | - | `{"open_source":true,"tooling_type":"contract-library","maintenance_status":"active","evm_compatible_only":false}` |
| language.primary | Elixir | - |
| license.spdx | - | AGPL-3.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | - | `{"type":"free","plans":[{"free":true,"name":"Open Source","description":"Free access to OpenZeppelin Contracts library","contactSales":false}],"summary":"Free and open source","freeTier":true,"sourceUrl":"https://www.openzeppelin.com/contracts","retrievedAt":"2026-08-21T13:46:48.699Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | - | commercial |
| pricing.price_level | - | free |
| release.cadence_days | 7 | - |
| release.history | `[{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.8","date":"2026-08-26T09:31:24Z","type":"stable","version":"v11.2.8"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.7","date":"2026-08-18T12:46:33Z","type":"stable","version":"v11.2.7"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.6","date":"2026-08-10T11:18:38Z","type":"stable","version":"v11.2.6"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.5","date":"2026-08-07T13:38:49Z","type":"stable","version":"v11.2.5"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.4","date":"2026-08-04T09:48:11Z","type":"stable","version":"v11.2.4"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.3","date":"2026-07-24T16:19:05Z","type":"stable","version":"v11.2.3"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.2","date":"2026-07-03T14:58:51Z","type":"stable","version":"v11.2.2"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.1","date":"2026-06-18T15:53:21Z","type":"stable","version":"v11.2.1"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.2.0","date":"2026-06-17T10:45:44Z","type":"stable","version":"v11.2.0"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.1.3","date":"2026-06-02T13:30:16Z","type":"stable","version":"v11.1.3"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.1.2","date":"2026-05-27T12:35:45Z","type":"stable","version":"v11.1.2"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.1.1","date":"2026-05-25T14:09:41Z","type":"stable","version":"v11.1.1"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.1.0","date":"2026-05-25T10:21:29Z","type":"stable","version":"v11.1.0"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.0.3","date":"2026-05-08T13:11:29Z","type":"stable","version":"v11.0.3"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.0.2","date":"2026-05-04T15:59:22Z","type":"stable","version":"v11.0.2"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.0.1","date":"2026-05-01T11:44:17Z","type":"stable","version":"v11.0.1"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v11.0.0","date":"2026-04-22T16:08:16Z","type":"stable","version":"v11.0.0"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v10.2.6","date":"2026-04-15T14:03:16Z","type":"stable","version":"v10.2.6"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v10.2.5","date":"2026-04-14T14:15:56Z","type":"stable","version":"v10.2.5"},{"url":"https://github.com/blockscout/blockscout/releases/tag/v10.2.4","date":"2026-04-07T12:39:17Z","type":"stable","version":"v10.2.4"}]` | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=ethereum-helm-charts%2Fblockscout&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Blockchain Dev Tools)

| Capability | Blockscout | OpenZeppelin Contracts |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Tooling type | - | Contract library |
| Evm compatible only | - | ✗ |
| Local dev network | - | - |
| Native fuzzing invariant testing | - | - |
| Mainnet forking | - | - |
| Contract verification integration | - | - |
| Trace debugger | - | - |
| Gas profiling | - | - |
| Archive node access | - | - |
| Graphql indexing | - | - |
| Static analysis security tool | - | - |
| Open source | - | ✓ |
| Maintenance status | - | Active |

*Source: Vioscale. Generated 2026-09-01T17:26:46.953Z. "-" = undocumented, not absent.*