# crates.io on Onekey

> 15 endpoints for crates.io (15 stable, 0 beta), 1 to 5 credits each. Category: Developer platforms. One key, one JSON shape.

Base URL: https://api.onekey.dev
Auth: header `x-api-key: <key>`. Call shape: `GET /v1/{platform}/{endpoint}?{params}`.
Every response is `{success, data, metadata, error}`; check `success` first. Cost is in `metadata.credits_charged`. Free when served from cache (0.2 credit for a cached response over 100 KB). Failed and not-found calls are refunded.
Status: stable = verified against the live source; beta = not yet verified, fields may be missing.

Page: https://onekey.dev/platforms/crates
Reference (Markdown): https://onekey.dev/docs/api/crates.md
All docs: https://onekey.dev/llms.txt

## Canonical fields returned

Unified-schema fields (same names on every platform), with how many of the 15 mapped crates.io endpoints return each:

- `entity.name` (string): 10
- `entity.stats.downloads` (integer): 9
- `entity.createdAt` (ISO 8601 date): 8
- `package.version` (string): 8
- `entity.description` (string): 6
- `entity.updatedAt` (ISO 8601 date): 5
- `package.documentationUrl` (URL): 5
- `package.homepageUrl` (URL): 5
- `package.repositoryUrl` (URL): 5
- `author.username` (string): 3
- `author.avatarUrl` (URL): 2
- `author.displayName` (string): 2
- `author.id` (string): 2
- `author.url` (URL): 2
- `entity.id` (string): 2
- `package.license` (string): 2
- `package.yanked` (boolean): 2
- `author.createdAt` (ISO 8601 date): 1
- `content.createdAt` (ISO 8601 date): 1
- `content.id` (string): 1
- `engagement.views` (integer): 1
- `entity.tags` (list of strings): 1
- plus 11 platform-specific fields under `ext.`

## Endpoints

### crates.categories

crates.io categories with crate counts.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/categories` with header `x-api-key: YOUR_API_KEY`
- Parameters: none
- Fields returned: `entity.id`, `entity.name`, `entity.description`, `ext.crates`
- Reference: https://onekey.dev/docs/api/crates/categories.md

### crates.crate

Metadata and stats of a crate on crates.io.
- Price: 1 credit per fresh call. Status: stable. Returns: one record.
- Request: `GET https://api.onekey.dev/v1/crates/crate?name=serde` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `name` (string, required): crates.io crate name, e.g. serde
- Fields returned: `entity.name`, `package.version`, `entity.description`, `package.homepageUrl`, `package.repositoryUrl`, `package.documentationUrl`, `entity.createdAt`, `entity.updatedAt`, `entity.stats.downloads`, `entity.tags`, `ext.recentDownloads`, `ext.versionCount`, `ext.entityCategories`
- Reference: https://onekey.dev/docs/api/crates/crate.md

### crates.dependencies

Dependencies of a crate version.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/dependencies?name=serde&version=1.0.200` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `name` (string, required): crates.io crate name, e.g. serde
  - `version` (string, required): Exact crate version, e.g. 1.0.200
- Fields returned: `entity.name`, `ext.requirement`, `ext.kind`, `ext.optional`, `ext.defaultFeatures`
- Reference: https://onekey.dev/docs/api/crates/dependencies.md

### crates.downloads

Daily download counts of a crate (90 days).
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/downloads?name=serde` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `name` (string, required): crates.io crate name, e.g. serde
- Fields returned: `content.createdAt`, `engagement.views`, `content.id`
- Reference: https://onekey.dev/docs/api/crates/downloads.md

### crates.just_updated

Crates most recently updated.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/just_updated` with header `x-api-key: YOUR_API_KEY`
- Parameters: none
- Fields returned: `entity.name`, `package.version`, `entity.description`, `package.homepageUrl`, `package.repositoryUrl`, `package.documentationUrl`, `entity.createdAt`, `entity.updatedAt`, `entity.stats.downloads`, `ext.recentDownloads`, `ext.versionCount`
- Reference: https://onekey.dev/docs/api/crates/just_updated.md

### crates.keywords

crates.io keywords with crate counts.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/keywords` with header `x-api-key: YOUR_API_KEY`
- Parameters: none
- Fields returned: `entity.id`, `entity.name`, `ext.crates`
- Reference: https://onekey.dev/docs/api/crates/keywords.md

### crates.most_downloaded

Most downloaded crates of all time.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/most_downloaded` with header `x-api-key: YOUR_API_KEY`
- Parameters: none
- Fields returned: `entity.name`, `package.version`, `entity.description`, `package.homepageUrl`, `package.repositoryUrl`, `package.documentationUrl`, `entity.createdAt`, `entity.updatedAt`, `entity.stats.downloads`, `ext.recentDownloads`, `ext.versionCount`
- Reference: https://onekey.dev/docs/api/crates/most_downloaded.md

### crates.new_crates

Newest crates on crates.io.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/new_crates` with header `x-api-key: YOUR_API_KEY`
- Parameters: none
- Fields returned: `entity.name`, `package.version`, `entity.description`, `package.homepageUrl`, `package.repositoryUrl`, `package.documentationUrl`, `entity.createdAt`, `entity.updatedAt`, `entity.stats.downloads`, `ext.recentDownloads`, `ext.versionCount`
- Reference: https://onekey.dev/docs/api/crates/new_crates.md

### crates.owners

Owners of a crate.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/owners?name=serde` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `name` (string, required): crates.io crate name, e.g. serde
- Fields returned: `author.id`, `author.username`, `author.displayName`, `author.url`, `author.avatarUrl`, `ext.kind`
- Reference: https://onekey.dev/docs/api/crates/owners.md

### crates.reverse_dependencies

Crates that depend on a given crate.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/reverse_dependencies?name=serde` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `name` (string, required): crates.io crate name, e.g. serde
- Fields returned: `entity.name`, `package.version`, `entity.stats.downloads`, `entity.createdAt`
- Reference: https://onekey.dev/docs/api/crates/reverse_dependencies.md

### crates.search

Search crates.io.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/search?q=serde` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `q` (string, required): Search query
- Fields returned: `entity.name`, `package.version`, `entity.description`, `package.homepageUrl`, `package.repositoryUrl`, `package.documentationUrl`, `entity.createdAt`, `entity.updatedAt`, `entity.stats.downloads`, `ext.recentDownloads`, `ext.versionCount`
- Reference: https://onekey.dev/docs/api/crates/search.md

### crates.stats

Global crates.io totals (crates and downloads).
- Price: 1 credit per fresh call. Status: stable. Returns: one record.
- Request: `GET https://api.onekey.dev/v1/crates/stats` with header `x-api-key: YOUR_API_KEY`
- Parameters: none
- Fields returned: `entity.stats.downloads`, `ext.crates`
- Reference: https://onekey.dev/docs/api/crates/stats.md

### crates.user

Public profile of a crates.io user.
- Price: 1 credit per fresh call. Status: stable. Returns: one record.
- Request: `GET https://api.onekey.dev/v1/crates/user?login=dtolnay` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `login` (string, required): crates.io login
- Fields returned: `author.id`, `author.username`, `author.displayName`, `author.url`, `author.avatarUrl`, `author.createdAt`
- Reference: https://onekey.dev/docs/api/crates/user.md

### crates.version

Metadata of one specific crate version.
- Price: 1 credit per fresh call. Status: stable. Returns: one record.
- Request: `GET https://api.onekey.dev/v1/crates/version?name=serde&version=1.0.200` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `name` (string, required): crates.io crate name, e.g. serde
  - `version` (string, required): Exact crate version, e.g. 1.0.200
- Fields returned: `entity.name`, `package.version`, `entity.createdAt`, `entity.stats.downloads`, `package.license`, `package.yanked`, `author.username`, `ext.rustVersion`, `ext.edition`
- Reference: https://onekey.dev/docs/api/crates/version.md

### crates.versions

Most recent published versions of a crate.
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/crates/versions?name=serde` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `name` (string, required): crates.io crate name, e.g. serde
- Fields returned: `package.version`, `entity.createdAt`, `entity.stats.downloads`, `package.license`, `package.yanked`, `ext.rustVersion`, `ext.size`
- Reference: https://onekey.dev/docs/api/crates/versions.md

## Sample request

```bash
curl "https://api.onekey.dev/v1/crates/crate?name=serde" \
  -H "x-api-key: YOUR_API_KEY"
```