# Free Tier Hub

> Independent developer free-tier directory with usage caveats and official provider links.

## Primary resources
- [Directory](https://free-tier.eplus.dev/): crawlable HTML index of all listed services.
- [Catalog JSON](https://free-tier.eplus.dev/catalog.json): machine-readable data with source URLs, review dates and plan types.
- [Sitemap](https://free-tier.eplus.dev/sitemap.xml): category and service URLs.
- [Agent discovery](https://free-tier.eplus.dev/agents.md): optional reading guide.

## Categories
- [Static & frontend hosting](https://free-tier.eplus.dev/category/static-hosting/)
- [Backend & app hosting](https://free-tier.eplus.dev/category/app-hosting/)
- [Serverless & edge](https://free-tier.eplus.dev/category/serverless/)
- [Cloud compute & VPS](https://free-tier.eplus.dev/category/cloud-vps/)
- [Databases & caching](https://free-tier.eplus.dev/category/databases/)
- [Object storage](https://free-tier.eplus.dev/category/storage/)
- [APIs & developer tools](https://free-tier.eplus.dev/category/developer-tools/)
- [Authentication & security](https://free-tier.eplus.dev/category/auth-security/)
- [Monitoring & observability](https://free-tier.eplus.dev/category/observability/)
- [Product analytics](https://free-tier.eplus.dev/category/analytics/)
- [DNS & CDN](https://free-tier.eplus.dev/category/dns-cdn/)
- [AI & ML platforms](https://free-tier.eplus.dev/category/ai-ml/)
- [Queues, workflows & scheduling](https://free-tier.eplus.dev/category/queues-jobs/)
- [Hosted search](https://free-tier.eplus.dev/category/search/)
- [Feature flags & gradual rollout](https://free-tier.eplus.dev/category/feature-flags/)

## Interpretation
- A listed offer may be an ongoing allowance, recurring credit, trial or expiring resource.
- An unknown card or commercial-use value means check the provider; it does not mean permission is granted.
- Official provider links in the JSON are the primary sources of current billing and limits.
- Review dates are editorial snapshots, not a guarantee that a provider has not changed its terms.