Is fastjsonschema safe to use?

fastjsonschema has no known vulnerabilities on the latest version (2.21.2). DepScope rates its health at 71/100 (moderate risk).

What is the latest version of fastjsonschema?

The latest version of fastjsonschema is 2.21.2, released 2025-08-14.

Does fastjsonschema have known vulnerabilities?

No known vulnerabilities on the latest version of fastjsonschema.

Is fastjsonschema deprecated?

No, fastjsonschema is actively maintained. Latest release: 2.21.2 (2025-08-14).

What are alternatives to fastjsonschema?

Popular alternatives to fastjsonschema in PyPI include: boto3, packaging, urllib3, certifi, idna.

What license does fastjsonschema use?

fastjsonschema is licensed under BSD.

fastjsonschema

pypiv2.21.2

Fastest Python implementation of JSON schema

License BSDpermissive45 versions1 maintainers8 deps33,165,333 weekly dl

horejsek/python-fastjsonschema

/ 100

Health

safe to use

[email protected] is safe to use (health: 71/100)

Health breakdown0 – 100

10/25

maintenance

20/20

popularity

25/25

security

12/15

maturity

4/15

community

Vulnerabilities

none known

Maintainer trust

Active maintainers (3m)

1

Contributors (12m)

6

Primary author dominance

65%

GitHub stars

490

single active maintainer 3m

Quality signals

OSS Criticality

0.49medium

Download trend

stable(0%)

Health History

Dependency Tree

License Audit

Dependencies (8)

colorama;jsonschema;json-spec;pylint;pytest;pytest-benchmark;pytest-cache;validictory;

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/pypi/fastjsonschema