# A simple file storage API with public links and expiring URLs

Strovio is a file storage API for developers who want to upload a file and get a link back, without setting up buckets, IAM policies or a CDN account. One `PUT` request uploads a file. A public file gets a permanent URL. A private file gets a signed URL that expires after one hour each time you ask for it.

## How it works

1. Create an API key at [strovio.xyz/developer](https://strovio.xyz/developer).
2. Upload: `PUT https://strovio.xyz/api/v1/files/<path>` with the bytes, a `Content-Type` and `X-Access: public` or `private`.
3. Link: public uploads return `url` straight away. For private files, `GET https://strovio.xyz/api/v1/files/<path>` returns a signed `url` valid for 3600 seconds.

The same operations are available in the [TypeScript SDK](https://strovio.xyz/docs/sdk), in the [MCP server](https://strovio.xyz/docs/mcp) for AI agents, and in a web dashboard with folders, search, trash and share links.

## Who Strovio suits

- Small apps, side projects and internal tools that need to store user uploads, reports, exports or build artefacts and hand out links.
- Developers who want one API key instead of an access key, a secret, a region, a bucket policy and a CORS policy.
- Teams who also want people to manage the same files in a browser.
- AI agents that need to save a file and return a link to a person.

## Who it does not suit

- Workloads that need a global CDN. Public files are served directly from `s3.strovio.xyz`, not from edge locations.
- Files over 512 MB, or more than 100 GB in one account (the largest plan).
- Anyone who needs the S3 API itself, bucket-level settings, lifecycle rules, object versioning, regions, signed URLs longer than one hour, or a published uptime SLA. Strovio offers none of these today.
- Browser apps that upload directly from the user's device with a public key. The API key is a secret and must stay on your server.

## Pricing

A 14-day free trial with 2 GB and no card, then Pro at $10 a month for 25 GB or Team at $28 a month for 100 GB and 5 members. There are no separate request or download charges.

## Frequently asked questions

### Does Strovio give public files a permanent URL?

Yes. A file uploaded with `X-Access: public` returns a `url` that works for anyone until the file is deleted.

### How long do private file links last?

Signed URLs for private files last one hour. Request a new one with `GET /api/v1/files/<path>` when it expires. For a link that does not expire, create a share link in the dashboard.

### Is Strovio S3-compatible?

No. Strovio has its own small REST API. It stores files on S3-compatible storage underneath, but you cannot point an S3 client at Strovio.

### Is there a free tier?

There is a 14-day free trial with 2 GB of storage and no card. After that a paid plan is needed.

## Get started

[Create an account](https://strovio.xyz/signup), then follow [Upload, list, download and delete files](https://strovio.xyz/docs/upload-and-download).

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Source: https://strovio.xyz/use-cases/file-storage-api-with-public-and-expiring-links
All docs for agents: https://strovio.xyz/llms.txt