# Vextorium Crate Package Info

> Vextorium Crate Package Info is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-19).

Fetches a Rust crate's profile from crates.io including version, downloads, license, repository, docs, keywords, and minimum Rust version.

## Facts

- Endpoint: POST https://api.vextorium.com/v1/crate-package?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-crate-package-info-8c85c6b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YoSTOqbuFQZ1xbXQNkB2E

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability vextorium-crate-package-info-8c85c6b5 -d '<json body>'
```

Example prompt: Can you pull up the crates.io profile for 'serde' — I want to see its latest version, total downloads, license, and minimum Rust version?

## When to prefer this

Use this endpoint when you need structured metadata about a specific Rust crate by name, including popularity metrics, licensing, versioning, and MSRV — especially when you want a single-call lookup against crates.io without scraping or parsing HTML.

## Known failure modes

- Crate name does not exist on crates.io — returns null fields or empty response
- crates.io API is temporarily unavailable — upstream timeout or error
- Typo in crate name returns no match
- Some fields (e.g. min_rust, documentation) may be null if the crate author did not provide them

## How this service works

558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.

## Output

Returns a JSON object with the crate name, source (crates.io), latest version, total number of versions, description, license, repository URL, documentation URL, keywords, minimum Rust version (MSRV), total download count, 90-day recent download count, creation date, and last updated date.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "name": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "crate": "serde",
  "source": "crates.io",
  "created": "2014-12-05T20:20:39.487502Z",
  "license": "MIT OR Apache-2.0",
  "updated": "2026-07-18T23:05:13.266456Z",
  "keywords": [
   "no_std",
   "serde"
  ],
  "min_rust": "1.56",
  "versions": 316,
  "repository": "https://github.com/serde-rs/serde",
  "description": "A generic serialization/deserialization framework",
  "last_version": "1.0.229",
  "documentation": "https://docs.rs/serde",
  "total_downloads": 1472539969,
  "recent_downloads_90d": 339082120
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-crate-package-info-8c85c6b5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)