# mypy vs pre-commit

| Attribute | mypy | pre-commit |
|---|---|---|
| **vioscaleAI score** | 69.4 (66% (medium)) | 66.1 (70% (medium)) |
| activity.commits_last_30d | 100 | 16 |
| adoption.dependent_repos | 52,771 | 35,684 |
| adoption.github_stars | 20,682 | 15,626 |
| adoption.package_downloads_weekly | 42,892,033 | 33,971,661 |
| content.faq | `[{"answer":"A type analysis tool for Python that enables code to transition from pure dynamic typing to statically-typed code through annotations, with error detection at check time. Code runs with negligible performance impact and developers can incrementally adopt static types in existing projects. It is indexed under Code Quality Tools.","source":"https://mypy-lang.org","question":"What is mypy?","confidence":0.6},{"answer":"mypy is open source, so it can be self-hosted and used at no licence cost. Pricing changes often, so verify at source before relying on it.","source":"https://mypy-lang.org","question":"Is mypy free to use?","confidence":0.6},{"answer":"mypy supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://mypy-lang.org","question":"What platforms does mypy support?","confidence":0.6}]` | `[{"answer":"A framework that automates the execution of code quality checks as git pre-commit hooks, eliminating the need for developers to manually install language-specific dependencies on their machines to run linters and formatters written in any programming language. It is indexed under Code Quality Tools.","source":"https://pre-commit.com","question":"What is pre-commit?","confidence":0.6},{"answer":"pre-commit offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://pre-commit.com","question":"Is pre-commit free?","confidence":0.6},{"answer":"pre-commit supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://pre-commit.com","question":"What platforms does pre-commit support?","confidence":0.6},{"answer":"Yes. pre-commit can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://pre-commit.com","question":"Can pre-commit be self-hosted?","confidence":0.6},{"answer":"Yes. pre-commit is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/pre-commit/pre-commit","question":"Is pre-commit open source?","confidence":0.99}]` |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A static type checker that analyzes Python code to catch type errors before runtime. Supports gradual typing, allowing you to mix static and dynamic typing and incrementally add type hints to existing codebases. | Manages Git pre-commit hooks written in various languages, automatically running code checks to detect issues like missing semicolons, trailing whitespace, and debug statements before code review. |
| features.capabilities | `{"autofix":false,"metrics":false,"function":"type_checker","ci_gating":true,"deployment":"cli_local","incremental":true,"open_source":"oss","custom_rules":false,"impl_language":"Python","pricing_model":"free","language_scope":"single_language","editor_integration":true}` | `{"autofix":false,"metrics":false,"function":"meta_runner","ci_gating":true,"deployment":"cli_local","incremental":false,"open_source":"oss","config_model":"config_file","custom_rules":true,"impl_language":"Python","pricing_model":"free","language_scope":"multi_language","editor_integration":false}` |
| integrations.count | 1 | - |
| integrations.list | `[{"name":"VS Code","native":true}]` | - |
| language.primary | Python | Python |
| license.spdx | - | MIT |
| platform.support | `{"cli":true}` | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://mypy-lang.org","retrievedAt":"2026-08-14T13:45:01.127Z"}` | `{"type":"free","sourceUrl":"https://pre-commit.com","retrievedAt":"2026-08-14T09:20:48.398Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | - | 57 |
| release.history | - | `[{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.6.2","date":"2026-08-10T22:08:59Z","type":"stable","version":"v4.6.2"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.6.1","date":"2026-07-21T20:58:53Z","type":"stable","version":"v4.6.1"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.6.0","date":"2026-04-21T20:32:56Z","type":"stable","version":"v4.6.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.5.1","date":"2025-12-16T21:18:45Z","type":"stable","version":"v4.5.1"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.5.0","date":"2025-11-22T21:08:24Z","type":"stable","version":"v4.5.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.4.0","date":"2025-11-08T21:48:28Z","type":"stable","version":"v4.4.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.3.0","date":"2025-08-09T18:59:03Z","type":"stable","version":"v4.3.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.2.0","date":"2025-03-18T21:42:20Z","type":"stable","version":"v4.2.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.1.0","date":"2025-01-20T18:49:11Z","type":"stable","version":"v4.1.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.0.1","date":"2024-10-08T16:10:45Z","type":"stable","version":"v4.0.1"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v4.0.0","date":"2024-10-05T19:19:45Z","type":"stable","version":"v4.0.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.8.0","date":"2024-07-28T20:05:15Z","type":"stable","version":"v3.8.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.7.1","date":"2024-05-11T01:31:03Z","type":"stable","version":"v3.7.1"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.7.0","date":"2024-03-24T17:41:43Z","type":"stable","version":"v3.7.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.6.2","date":"2024-02-18T18:22:07Z","type":"stable","version":"v3.6.2"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.6.1","date":"2024-02-10T19:47:57Z","type":"stable","version":"v3.6.1"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.6.0","date":"2023-12-09T21:29:42Z","type":"stable","version":"v3.6.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.5.0","date":"2023-10-13T16:06:55Z","type":"stable","version":"v3.5.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.4.0","date":"2023-09-02T17:13:27Z","type":"stable","version":"v3.4.0"},{"url":"https://github.com/pre-commit/pre-commit/releases/tag/v3.3.3","date":"2023-06-13T23:12:35Z","type":"stable","version":"v3.3.3"}]` |
| reliability.status_page | - | yes |
| security.scorecard | 6.8 | 4.7 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=mypy&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=pre-commit&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Code Quality Tools)

| Capability | mypy | pre-commit |
|---|:--:|:--:|
| **Core** |  |  |
| Function | Type checker | Meta-runner |
| Language scope | Single-language | Multi-language |
| Implementation language | Python | Python |
| **Capability** |  |  |
| Autofix | ✗ | ✗ |
| **Config** |  |  |
| Config model | - | Config file |
| **Extensibility** |  |  |
| Custom rules | ✗ | ✓ |
| **Deployment** |  |  |
| Deployment | CLI-local | CLI-local |
| **Delivery** |  |  |
| Editor integration | ✓ | ✗ |
| CI / VCS gating | ✓ | ✓ |
| **Insight** |  |  |
| Code metrics | ✗ | ✗ |
| **Performance** |  |  |
| Incremental / monorepo aware | ✓ | ✗ |
| **Licensing** |  |  |
| Open-source | OSS | OSS |
| **Commercial** |  |  |
| Pricing model | Free | Free |

*Source: vioscaleAI. Generated 2026-10-16T18:30:48.360Z. "-" = undocumented, not absent.*