Is msgspec safe to use?

msgspec has no known vulnerabilities on the latest version (0.21.1). DepScope rates its health at 67/100 (moderate risk).

What is the latest version of msgspec?

The latest version of msgspec is 0.21.1, released 2026-04-12.

Does msgspec have known vulnerabilities?

No known vulnerabilities on the latest version of msgspec.

Is msgspec deprecated?

No, msgspec is actively maintained. Latest release: 0.21.1 (2026-04-12).

What are alternatives to msgspec?

Popular alternatives to msgspec in PyPI include: boto3, packaging, urllib3, certifi, requests.

What license does msgspec use?

msgspec is licensed under BSD-3-Clause.

msgspec

pypiv0.21.1

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML.

License BSD-3-Clausepermissive40 versions3 deps

jcrist/msgspec

/ 100

Health

use with caution

[email protected] low health (67/100) — consider alternatives

Moderate health score (67/100) — verify manually

Health breakdown0 – 100

25/25

maintenance

0/20

popularity

25/25

security

12/15

maturity

5/15

community

Vulnerabilities

none known

Quality signals

Publish security

API token

Health History

Dependency Tree

License Audit

Dependencies (3)

tomli;tomli_w;pyyaml;

API access

Get this data programmatically — free, no authentication.

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

msgspec

pypiv0.21.1

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML.

License BSD-3-Clausepermissive40 versions3 deps

jcrist/msgspec

/ 100

Health

use with caution

[email protected] low health (67/100) — consider alternatives

Moderate health score (67/100) — verify manually

Health breakdown0 – 100

25/25

maintenance

0/20

popularity

25/25

security

12/15

maturity

5/15

community

Vulnerabilities

none known

Quality signals

Publish security

API token

Health History

Dependency Tree

License Audit

Dependencies (3)

tomli;tomli_w;pyyaml;

API access

Get this data programmatically — free, no authentication.

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