# mypy

- **Canonical URI:** https://www.vioscale.ai/software/mypy
- **Category:** Code Quality Tools
- **Homepage:** https://mypy-lang.org
- **Also known as:** mypy
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-05T14:18:31.436Z

## Vioscale score

**80.4 / 100**, confidence 22% (low).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 0 | 0.123 | 0 | - |
| github_stars | 81.4 | 0.038 | 3.1 | ✓ |
| integrations | 0 | 0.062 | 0 | - |
| github_activity | 52 | 0.138 | 7.2 | ✓ |
| release_cadence | 0 | 0.077 | 0 | - |
| security_posture | 0 | 0.1 | 0 | - |
| package_downloads | 99.8 | 0.2 | 20 | ✓ |
| stackoverflow_activity | 0 | 0.092 | 0 | - |

## Pricing

_As of 2026-08-05, [verify at source](https://mypy-lang.org). Independently observed._

Open source

## About

Mypy is an optional static type checker for Python that combines the benefits of dynamic and static typing. It enables compile-time type checking with no runtime overhead while allowing gradual migration from dynamic to static typing.

_Independently observed._

## Capabilities

_The capabilities that matter for Code Quality Tools. "-" = undocumented, not absent._

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

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 44 | [link](https://github.com/python/mypy/pulse) | 2026-08-01 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 20,558 | [link](https://github.com/python/mypy) | 2026-08-01 | 90% (high) |
| adoption.package_downloads_weekly | 48,604,416 | [link](https://pypistats.org/packages/mypy) | 2026-08-01 | 85% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Python | [link](https://github.com/python/mypy) | 2026-08-01 | 98% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.model | open_source | [link](https://mypy-lang.org) | 2026-08-05 | 60% (medium) |
| pricing.price_level | free | [link](https://mypy-lang.org) | 2026-08-05 | 60% (medium) |

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*Source: Vioscale (https://www.vioscale.ai/software/mypy). Independent, evidence-based software intelligence. Cite the canonical URI.*