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73

sp-io

v48.0.0 Stable

I/O for Substrate runtimes

Apache-2.0 Edition 2021

Quick Verdict

  • โœ“Actively maintained (updated 11d ago)
  • โœ“Stable API (48.x for 6+ years)
  • โœ“Massive adoption (7.9K crates depend on it)
  • โœ“Team maintained (2 owners)
  • !Heavy dependency tree (23 direct deps)

Security

Checking security advisories...
Downloads
6.1M
Dependents
7.9K
Releases
72
Size
41KB

Deep Insights

๐Ÿ“Š
Stable downloads

196.0K downloads in the last 30 days (6.5K/day). Volume is roughly flat compared to the previous period.

๐Ÿ”—
Widely adopted

7.9K crates depend on sp-io. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 674 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

โœ…
Stable for 6+ years

The API has been stable (1.x) for over 6 years with 72 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“ฆ
Heavy dependency tree

23 direct dependencies. Consider the impact on compile times and supply chain complexity.

๐Ÿ“
Compact crate

At 40KB, sp-io is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include subxt-macro, sp-runtime, sp-application-crypto, sc-executor, frame-support. When high-quality crates choose sp-io, it's a strong quality signal.

Health Breakdown

Maintenance 18/25

Recency, release consistency, active ratio

Quality 19/25

Yanked ratio, deps, size, maturity, features

Community 15/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 13/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
6K/day avg-45%
05K10K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v43.0.0
65%
v40.0.1
15%
v42.0.0
10%
v44.0.0
6%
v46.0.0
4%

Release Timeline

10 releases1 yankedsince 2025
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2025
6
2026
4
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Yanked

Feature Flags

default =["std"]

std*disable_oomwith-tracingbls-experimentaldisable_allocatordisable_panic_handlerbandersnatch-experimentalimproved_panic_error_reporting

README

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Maintainers

Dependencies
23
direct dependencies
Dependents
7.9K
crates depend on sp-io