# Suverse Crates.io Metadata Lookup

> Suverse Crates.io Metadata Lookup is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Fetches metadata for a Rust crate from crates.io, including description, version, download stats, repository links, categories, and keywords.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-crates-crate
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/suverse-crates-io-metadata-lookup-be5c467b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_joDgEm-m8kK3YQlp6lG-P

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 suverse-crates-io-metadata-lookup-be5c467b -d '<json body>'
```

Example prompt: Can you look up the crates.io metadata for the 'tokio' crate — I want to know the latest version, total downloads, repository link, and what categories it's in?

## When to prefer this

Use this endpoint when you need quick, keyless access to Rust crate metadata from crates.io without setting up a crates.io API client. Ideal for AI agents performing dependency research, automated code review enrichment, or Rust ecosystem exploration where no crates.io credentials are available.

## Known failure modes

- Crate name not found on crates.io returns an error or empty result
- Misspelled crate name yields no match
- crates.io upstream unavailability causes timeout or error
- Rate limiting by crates.io upstream may cause intermittent failures

## How this service works

Rust crate metadata from crates.io: description, latest version, total and recent downloads, repository and docs links, categories and keywords. Pass a crate name. Keyless.

## Output

Returns structured metadata about the requested Rust crate: its description, latest version string, total and recent download counts, repository URL, documentation URL, categories list, and associated keywords — sourced from the crates.io registry.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/suverse-crates-io-metadata-lookup-be5c467b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)