---
name: deps-dev
description: Look up the latest version of any package using deps.dev API. Use this skill when checking package versions, updating dependencies, adding new packages to a project, or verifying current library versions.
---

# Package Version Lookup

Query deps.dev to get the latest stable version of open source packages.

## Usage

Use the Python script at `scripts/deps-dev.py`.

### Get Latest Version

```bash
# npm package
python scripts/deps-dev.py package --system npm --package express

# Scoped npm package
python scripts/deps-dev.py package --system npm --package "@types/node"

# PyPI package
python scripts/deps-dev.py package --system pypi --package requests

# Go module
python scripts/deps-dev.py package --system go --package "github.com/gin-gonic/gin"

# Cargo crate
python scripts/deps-dev.py package --system cargo --package serde

# Show recent versions
python scripts/deps-dev.py package --system npm --package express --all-versions
```

### Get Specific Version Details

```bash
python scripts/deps-dev.py version --system npm --package express --version 5.0.0
```

## Supported Ecosystems

| Ecosystem | System ID |
| --------- | --------- |
| npm | `npm` |
| PyPI | `pypi` |
| Go | `go` |
| Cargo | `cargo` |
| Maven | `maven` |
| NuGet | `nuget` |
| RubyGems | `rubygems` |

## Ecosystem Detection

Identify the ecosystem from project files:

- `package.json` → npm
- `requirements.txt`, `pyproject.toml` → pypi
- `go.mod` → go
- `Cargo.toml` → cargo
- `pom.xml`, `build.gradle` → maven
- `*.csproj` → nuget
- `Gemfile` → rubygems

## Rules

- Use `--format json` for structured output when needed
- The script handles URL encoding automatically
- Use `--all-versions` to see recent version history