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candid

v0.10.32 Growing

Candid is an interface description language (IDL) for interacting with canisters running on the Internet Computer.

Apache-2.0 Edition 2021 MSRV 1.78.0
EncodingWebAssembly #idl#internet-computer#candid#dfinity

Quick Verdict

  • โœ“Actively maintained (updated 7d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (17.0K crates depend on it)
  • โœ“Team maintained (2 owners)
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
4.7M
Dependents
17.0K
Releases
116
Size
74KB

Deep Insights

๐Ÿ“Š
Stable downloads

124.4K downloads in the last 30 days (4.1K/day). Volume is roughly flat compared to the previous period.

๐Ÿ›๏ธ
Foundational crate

17.0K crates depend on candid โ€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 101 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 6+ years old, candid hasn't reached 1.0 yet. Expect potential API changes between versions.

๐ŸŒŸ
Used by top crates

Notable dependents include ic-cdk, ic-cdk-macros, ic-stable-structures, ic-agent, ic-utils. When high-quality crates choose candid, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 14/25

Yanked ratio, deps, size, maturity, features

Community 20/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
4K/day avg-39%
02K4K6K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v0.10.24
41%
v0.10.29
22%
v0.10.26
19%
v0.10.31
11%
v0.10.23
8%

Release Timeline

10 releases1 yankedsince 2026
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Feature Flags

default =["serde_bytes", "printer", "bignum"]

allvaluebignum*printer*

README

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Maintainers

Dependencies
19
direct dependencies
Dependents
17.0K
crates depend on candid

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