Is fastjsonschema safe to use?

fastjsonschema has no known vulnerabilities on the latest version (2.22.1). DepScope rates its health at 66/100 (moderate risk).

What is the latest version of fastjsonschema?

The latest version of fastjsonschema is 2.22.1, released 2026-07-27.

Does fastjsonschema have known vulnerabilities?

No known vulnerabilities on the latest version of fastjsonschema.

Is fastjsonschema deprecated?

No, fastjsonschema is actively maintained. Latest release: 2.22.1 (2026-07-27).

What are alternatives to fastjsonschema?

Popular alternatives to fastjsonschema in PyPI include: boto3, certifi, requests, pycparser, h11.

What license does fastjsonschema use?

fastjsonschema is licensed under BSD-3-Clause.

fastjsonschema

pypiv2.22.1

Fastest Python implementation of JSON schema

License BSD-3-Clausepermissive47 versions1 maintainers8 deps

horejsek/python-fastjsonschema

/ 100

Health

use with caution

[email protected] low health (66/100) — consider alternatives

Moderate health score (66/100) — verify manually

Health breakdown0 – 100

25/25

maintenance

0/20

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

0.78critical

Download trend

rapid growth(+151.5%)

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

fastjsonschema

pypiv2.22.1

Fastest Python implementation of JSON schema

License BSD-3-Clausepermissive47 versions1 maintainers8 deps

horejsek/python-fastjsonschema

/ 100

Health

use with caution

[email protected] low health (66/100) — consider alternatives

Moderate health score (66/100) — verify manually

Health breakdown0 – 100

25/25

maintenance

0/20

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

0.78critical

Download trend

rapid growth(+151.5%)

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