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crates.io API: Get crate details

Looks up a Rust crate by name or crates.io link and returns its latest version, downloads, links, dates, license and 10 most recent releases.

crates.io (opens in a new tab)Version 1ReadNo sign-inVerified Nov 2, 2026

Unofficial. Not affiliated with or endorsed by crates.io.

Inputs

Values from the run on Oct 23, 2026, shown under Output.

Crate, requiredcrate

Crate name or crates.io crate link, for example serde or https://crates.io/crates/serde.

serde

Output

From a run on Oct 23, 2026, shortened for this page.
{  "name": "serde",  "license": "MIT OR Apache-2.0",  "versions": [    {      "version": "1.0.229",      "page_link": "https://crates.io/crates/serde/1.0.229",      "release_date": "2026-07-18"    },    {      "version": "1.0.228",      "page_link": "https://crates.io/crates/serde/1.0.228",      "release_date": "2025-09-27"    },    {      "version": "1.0.227",      "page_link": "https://crates.io/crates/serde/1.0.227",      "release_date": "2025-09-25"    }  ],  "page_link": "https://crates.io/crates/serde",  "description": "A generic serialization/deserialization framework",  "created_date": "2014-12-05",  "latest_version": "1.0.229",  "repository_link": "https://github.com/serde-rs/serde",  "total_downloads": 1575699114,  "recent_downloads": 378724032,  "last_updated_date": "2026-07-18",  "documentation_link": "https://docs.rs/serde"}
Price
1 credit per completed run (1¢ with pay as you go); failed runs are free.
Method
crates.io/get_crate
Returns
latest version, downloads, license, repository and documentation links, dates, recent versions

Use it from your agent

Give your agent this line. It reads SKILL.md, gets a Fous API key and connects the Fous MCP server. Its run then takes the method crates.io/get_crate with the inputs above.

Ask your agent

  • What's the latest version of the tokio crate and how many downloads does it have?
  • Show me the license and repository link for the serde crate
  • I need the documentation URL and last update date for reqwest on crates.io
  • List the 10 most recent releases of clap with their publish dates
  • Which version of anyhow is current, and what license does it use?
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