# Crates.io Crate Info Lookup

> Crates.io Crate Info Lookup is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Fetches metadata and details about a specific Rust crate from the Crates.io registry

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/dev/crates-io-crate-info?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crates-io-crate-info-lookup-1488ab24
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jJvR6GCAta1_urm98eZCZ

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 crates-io-crate-info-lookup-1488ab24
```

Example prompt: Can you look up the crate info for 'serde' on crates.io and tell me its latest version, description, and download count?

## When to prefer this

Use this endpoint when you need structured metadata about a specific Rust crate from Crates.io without setting up your own API key or scraping the site. Ideal for AI agents performing dependency research, auditing open-source Rust libraries, or enriching software project data at $0.001 per call with no registration required.

## Known failure modes

- Crate not found — returns error if the crate name does not exist on crates.io
- Invalid schema parameter — malformed query may return an error
- Crates.io API downtime — upstream unavailability causes failure
- Rate limiting — excessive calls may be throttled by the upstream registry

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

A JSON response containing crate metadata such as name, latest version, description, total downloads, repository URL, homepage, license, keywords, categories, and author information as available from the Crates.io registry.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crates-io-crate-info-lookup-1488ab24/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)