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candid

v0.10.26 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 9d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (7.4K crates depend on it)
  • โœ“Team maintained (2 owners)
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
4.2M
Dependents
7.4K
Releases
110
Size
67KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

128.0K downloads in the last 30 days (4.3K/day), up 32% from the previous period.

๐Ÿ”—
Widely adopted

7.4K crates depend on candid. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 100 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 5+ 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 18/25

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
3K/day avg+68%
02K4K6K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.7.8
30%
v0.8.4
28%
v0.10.10
16%
v0.10.13
15%
v0.10.17
11%

Release Timeline

110 releases3 yankedsince 2020
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2020
31
2021
21
2022
14
2023
19
2024
10
2025
9
2026
6
Less
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Yanked

Feature Flags

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

allvaluebignum*printer*

README

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Maintainers

Dependencies
19
direct dependencies
Dependents
7.4K
crates depend on candid

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