Comparison

ast-grep vs mypy

On the evidence we track, mypy leads this comparison with a composite score of 72/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

ast-grep full profile →mypy full profile →

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ast-grep60

★mypy72

Attribute comparison across 2 tools
Attribute	ast-grep	mypyLeader
Vioscale score	60 / 100low · 45%	72 / 100medium · 60%
Pricing
Free tierpricing.free_tier	✓	-
Modelpricing.model	commercial	open_source
Price levelpricing.price_level	free	free
Security
Scorecardsecurity.scorecard	-	6.5
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40ast-grep%2Fnapi&per_page=100 · Last 12m: 0	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=mypy&per_page=100 · Last 12m: 0
Adoption
Dependent reposadoption.dependent_repos	177	52,771
Github starsadoption.github_stars	15,649	20,603
Package downloads weeklyadoption.package_downloads_weekly	-	48,604,416
Activity
Commits last 30dactivity.commits_last_30d	49	27
Release
Cadence daysrelease.cadence_days	14	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	MIT	-
Language
Primarylanguage.primary	Rust	Python

Score

Vioscale score

ast-grep60 / 100low · 45%

mypy72 / 100medium · 60%

Pricing

Free tier

ast-grep✓

mypy–

Model

ast-grepcommercial

mypyopen_source

Price level

ast-grepfree

mypyfree

Security

Scorecard

ast-grep–

mypy6.5

Vulnerabilities

ast-grepCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40ast-grep%2Fnapi&per_page=100 · Last 12m: 0

mypyCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=mypy&per_page=100 · Last 12m: 0

Adoption

Dependent repos

ast-grep177

mypy52,771

Github stars

ast-grep15,649

mypy20,603

Package downloads weekly

ast-grep–

mypy48,604,416

Activity

Commits last 30d

ast-grep49

mypy27

Release

Cadence days

ast-grep14

mypy–

History

ast-grep20 items

mypy–

License

Spdx

ast-grepMIT

mypy–

Language

Primary

ast-grepRust

mypyPython

Capabilities

Feature-by-feature on the axes that matter for code quality tools. “-” means undocumented, not absent.

Capability comparison for Code Quality Tools
Capability	ast-grep	mypy
Core
Function	Static analyzer	Type checker
Language scope	Multi-language	Single-language
Implementation language	Rust	Python
Capability
Autofix	✓	✗
Config
Config model	Rule packs	-
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

Core

Function

ast-grepStatic analyzer

mypyType checker

Language scope

ast-grepMulti-language

mypySingle-language

Implementation language

ast-grepRust

mypyPython

Capability

Autofix

ast-grep✓

mypy✗

Config

Config model

ast-grepRule packs

mypy-

Extensibility

Custom rules

ast-grep✓

mypy✗

Deployment

ast-grepCLI-local

mypyCLI-local

Delivery

Editor integration

ast-grep✓

mypy✓

CI / VCS gating

ast-grep-

mypy✓

Insight

Code metrics

ast-grep-

mypy✗

Performance

Incremental / monorepo aware

ast-grep-

mypy✗

Licensing

Open-source

ast-grepOSS

mypyOSS

Commercial

Pricing model

ast-grepFree

mypyFree

What each one is

The product in its own terms, so the numbers below have context.

ast-grep

A structural code search and rewriting tool that uses AST analysis to locate and modify code patterns across thousands of files, with support for linting and programmatic access via Node.js bindings.

Independently observed

mypy

Leader

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.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

ast-grep

Open sourceFree tier

as of 2026-08-14verify ↗

mypy

Leader

Open source

as of 2026-08-14verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	ast-grep	mypy
CLIPlatforms	✓	✓
Self-hostedDeployment	✓	-

Platforms

CLI

ast-grep✓

mypy✓

Deployment

Self-hosted

ast-grep✓

mypy–

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.