Free JSON API that returns the latest stable version of any package, library, or tool.
Live at lateststable.org
GET https://lateststable.org/v1/pypi/fastapi
{
"name": "fastapi",
"version": "0.135.2",
"major": "0",
"minor": "135",
"patch": "2",
"date": null,
"platform": "pypi"
}| Platform | Endpoint | Example |
|---|---|---|
| PyPI | /v1/pypi/{package} |
/v1/pypi/fastapi |
| npm | /v1/npm/{package} |
/v1/npm/express |
| GitHub | /v1/github/{user}/{repo} |
/v1/github/denoland/deno |
| Docker Hub | /v1/docker/{user}/{image} |
/v1/docker/library/nginx |
| Crates.io | /v1/crates/{crate} |
/v1/crates/serde |
| Go | /v1/go/{module} |
/v1/go/golang.org/x/text |
| Homebrew | /v1/homebrew/{formula} |
/v1/homebrew/jq |
| RubyGems | /v1/rubygems/{gem} |
/v1/rubygems/rails |
| NuGet | /v1/nuget/{package} |
/v1/nuget/Newtonsoft.Json |
| Packagist | /v1/packagist/{vendor}/{package} |
/v1/packagist/laravel/framework |
| Maven | /v1/maven/{groupId}/{artifactId} |
/v1/maven/org.apache.kafka/kafka-clients |
| Helm | /v1/helm/{repo}/{chart} |
/v1/helm/bitnami/postgresql |
| JetBrains | /v1/jetbrains/{product} |
/v1/jetbrains/IIU |
| AUR | /v1/aur/{package} |
/v1/aur/yay |
bun install
bun run devbun run test124 tests covering all platforms, routing, caching, CORS, and error handling.
docker compose up -d --buildThe included Dockerfile builds a minimal image (~50MB) using oven/bun:1-alpine. Configure your reverse proxy to route traffic to port 3000.
- Zero runtime dependencies — just Bun and the source TypeScript
- In-memory TTL cache — successful lookups cached for 1 hour, errors never cached
- CORS enabled — use it from any frontend
MIT