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oauth2

v5.0.0 Growing

An extensible, strongly-typed implementation of OAuth2

MIT OR Apache-2.0 Edition 2021 MSRV 1.65

Quick Verdict

  • โœ•Not updated for 1+ year
  • โœ“Stable API (5.x for 11+ years)
  • โœ“Massive adoption (2.8K crates depend on it)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
28.6M
Dependents
2.8K
Releases
64
Size
91KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

2.9M downloads in the last 30 days (95.5K/day), up 29% from the previous period.

๐Ÿ”—
Widely adopted

2.8K crates depend on oauth2. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

oauth2 has only 1 owner despite 2.8K dependents. This is a bus-factor concern โ€” consider the implications for long-term support.

โœ…
Stable for 11+ years

The API has been stable (1.x) for over 11 years with 64 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐ŸŒŸ
Used by top crates

Notable dependents include openidconnect, rmcp, tiberius, pulsar, matrix-sdk. When high-quality crates choose oauth2, it's a strong quality signal.

Health Breakdown

Maintenance 7/25

Recency, release consistency, active ratio

Quality 20/25

Yanked ratio, deps, size, maturity, features

Community 10/20

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
73K/day avg+85%
050K100K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v4.4.2
57%
v5.0.0
31%
v4.1.0
6%
v4.3.0
3%
v4.4.1
2%

Release Timeline

64 releasessince 2014
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2014
3
2015
8
2016
3
2017
4
2018
6
2019
13
2020
6
2021
7
2022
5
2023
3
2024
5
2025
1
2026
Less
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Feature Flags

default =["reqwest", "rustls-tls"]

native-tlspkce-plainrustls-tls*reqwest-blockingtiming-resistant-secret-traits

README

Loading README...

Maintainers

Dependencies
20
direct dependencies
Dependents
2.8K
crates depend on oauth2