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schemars_derive

v1.2.1 Stable

Macros for #[derive(JsonSchema)], for use with schemars

MIT Edition 2021 MSRV 1.74
EncodingNo standard library #json-schema#rust#serde

Quick Verdict

  • โœ“Actively maintained (updated 54d ago)
  • โœ“Stable API (1.x for 6+ years)
  • โœ“Trusted by 155 crates
  • โœ“Permissive license (MIT)

Security

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Downloads
112.8M
Dependents
155
Releases
92
Size
31KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

12.2M downloads in the last 30 days (407.7K/day), up 25% from the previous period.

๐Ÿ”—
Moderate adoption

155 crates depend on schemars_derive. Reasonable ecosystem adoption, though not yet a core dependency.

โœ…
Stable for 6+ years

The API has been stable (1.x) for over 6 years with 92 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“
Compact crate

At 31KB, schemars_derive is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include schemars, havocompare, oas_gen, open-rpc-schema, surfpool-types. When high-quality crates choose schemars_derive, it's a strong quality signal.

Health Breakdown

Maintenance 16/25

Recency, release consistency, active ratio

Quality 18/25

Yanked ratio, deps, size, maturity, features

Community 12/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
320K/day avg+60%
0100K200K300K400K500K12/301/172/42/223/123/29

Top Dependents

Version Adoption

v0.8.22
48%
v0.8.21
31%
v0.8.16
8%
v1.0.4
7%
v0.8.12
5%

Release Timeline

92 releasessince 2019
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2019
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2021
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2022
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2023
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2024
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2025
17
2026
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README

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Maintainers

Dependencies
6
direct dependencies
Dependents
155
crates depend on schemars_derive

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