COPS Hosting Live In 5 Minutes

COPS hosting publishes your Calibre library on your own domain. Deploy COPS 4.5.4 as a self-hosted OPDS ebook server: xCloud runs the pinned LinuxServer image behind a gateway that asks for a generated username and password, mounts persistent volumes for settings and your library, and serves a browsable catalog, an OPDS feed for e-reader apps and a REST API over HTTPS.

Deploy your COPS

No terminal
No technical skills needed
No lock-in, cancel anytime

What is COPS?

Self-hosted COPS is an OPDS ebook server. The name stands for Calibre OPDS PHP Server: it publishes an existing Calibre ebook library on the web, with a browsable catalog offering search, covers and downloads, an OPDS feed for e-reader apps and a REST API. It reads the library and never modifies it. Readers use it instead of a hosted ebook library, under the GPL-2.0-or-later licence.

On xCloud the template runs the LinuxServer COPS 4.5.4 image behind a small gateway, both pinned by immutable digest, with the cops_config and cops_books volumes. The gateway enforces HTTP Basic Authentication on the site, feed, downloads and API with a generated password, because COPS has no sign-in of its own. No library is bundled: you copy a Calibre library into the books volume.

From Sign-Up to a Live Library In Just 3 Easy Steps

A COPS setup normally means a PHP web container, an authentication layer, volumes, a domain and a certificate before the first book appears. This is the same result without assembling any of it.

Step 01
Sign Up
Create your xCloud account and pick COPS from the OneClick catalog. Choose your domain, confirm the timezone and the access username — xCloud generates the password.
Step 02
We Deploy It For You
One click. We bring up the COPS container, kept private, behind a small gateway container that enforces HTTP Basic Authentication, mount the cops_config and cops_books volumes, and publish it over HTTPS on your domain.
Step 03
Copy In Your Library
Save the username and password from the installation credentials, then copy your Calibre library (metadata.db plus the author folders) into the books volume and reload. Until you do, COPS shows a "database not found" check page.

Everything COPS Does, On Your Own Server

COPS runs in full here: a web catalog, an OPDS feed and a REST API over your Calibre library, behind a password you control.

Browse, Search And Download
A web catalog of your Calibre library with search, covers and downloads, reachable from any device with a browser.
OPDS Feed For E-Reader Apps
Point KOReader, Foliate, Moon+ Reader or Marvin at the /feed URL and sign in with the same username and password.
REST API
A REST API is available over the same library, behind the same gateway password.
Read-Only On Your Library
COPS never modifies your Calibre library; it has no upload page and cannot create one.
One Password For Everything
COPS has no sign-in of its own, so a gateway enforces HTTP Basic Authentication on the site, feed, downloads and API; QA confirmed 401 without credentials on each.
Settings And Library Persist
The cops_config and cops_books volumes, and the access credentials, survived an xCloud Restart in QA.

Everything You Need To Run Your Ebook Library 24/7

Managed hosting for COPS, so the parts that keep it online are not your problem.

COPS 4.5.4 deployed instantly
Image pinned by immutable digest
Access password generated for you
Kept behind xCloud nginx
Free SSL certificate
Server backups and snapshots
Server security updates included
30+ server locations
Unused balance refunded

What You Can Do With COPS

Read your library on any e-reader app
Add the OPDS feed to KOReader, Foliate, Moon+ Reader or Marvin and download books straight to the device, signing in with the same username and password.
Browse and search from a browser
Open the web catalog on a phone, tablet or laptop to search your Calibre library by title or author and download a book without installing Calibre itself.
Keep a private library private
The whole site, feed and downloads sit behind a generated username and password rather than a public page, and anonymous requests get a 401.
Build on the REST API
Use the REST API over the same library for your own scripts and tools, behind the same gateway password, without exposing the Calibre files directly.

COPS Screenshots

COPS home page showing the Calibre library catalog

COPS vs Alternatives

Hosted ebook libraries: A hosted library keeps your files with a vendor. COPS publishes the Calibre library you already have from your own Cloud VPS, read-only, behind your own password.
Kavita: Kavita has its own xCloud template. COPS fronts an existing Calibre library without importing or changing it.
Komga: Komga has its own xCloud template. COPS exists to expose a Calibre library through a web catalog and OPDS.
BookLore: BookLore has its own xCloud template. COPS only reads a Calibre library and has no upload or editing.

Simple Pricing. Everything Included.

Dedicated Cloud VPS sizes, pre-configured for COPS hosting. Pick the one that fits, and resize any time.

Cloud VPS 6 GB

Already Have a Server? Bring Your Own

Connect any VPS — DigitalOcean, Vultr, Linode, AWS, Hetzner or bare metal — and deploy COPS on it through the same panel, for a per-server management fee instead of a Cloud VPS rental.

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Priced per connected server, so your rate adjusts automatically as you add or remove servers. You pay your own provider for the server itself.

Self-managed hosting

Ready To Run Your Own Ebook Server?

COPS on xCloud runs on a dedicated Cloud VPS that we provision, patch, monitor and restore. Deploy faster. Own the server. Stay in control.

Fast Provisioning
Deploy faster using an xCloud Managed Server built with optimized stacks and high-speed SSDs.
Enterprise-grade security
Protect your infrastructure with a free SSL certificate and more advanced security features at no additional cost.
Intuitive Control Panel
From Server creation to application deployment, everything can be managed from our intuitive control panel.

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Frequently Asked Questions

Feel free to contact us with any questions or concerns you may have.

How much RAM does COPS need?

COPS's floor is one core, 256 MB of RAM and 5 GB of disk per the manifest, with about 29 MiB idle in QA. Generating thumbnails of very large covers is the main memory peak. The 6 GB plan on offer here dwarfs that, so disk size is what limits your library.

Is COPS free and open source?

Yes. COPS is licensed under GPL-2.0-or-later, per the LICENSE file at the 4.5.4 tag, so the code costs nothing to run. xCloud's only charge is the dedicated Cloud VPS, and your Calibre library stays in the cops_books volume of your own server.

Can you run COPS with Docker?

Yes, and this is COPS Docker hosting prepared for you: the template runs the LinuxServer COPS 4.5.4 image behind a gateway, both pinned by immutable digest, with cops_config and cops_books volumes and HTTPS on your domain. You write no compose file and no PHP configuration.

Can I upload books through COPS?

No. COPS only reads a Calibre library: it has no upload page and cannot create one, and it never modifies your library. Copy the library, with metadata.db and the author folders, into the books volume, and manage it with Calibre elsewhere.

Why does a new COPS install show database not found?

No library is bundled. Until you copy a Calibre library, meaning metadata.db plus the author folders, into the books volume and make the files readable, COPS shows a database-not-found check page. It is expected on a fresh install, not a fault.

Which e-reader apps work with the COPS OPDS feed?

KOReader, Foliate, Moon+ Reader and Marvin are named in the template. Enter the OPDS feed URL, which is the /feed path of your domain, and the same username and password; OPDS readers support HTTP Basic Authentication, which is what the gateway uses.

Does COPS have its own login?

No. COPS has no sign-in of its own, so a gateway enforces HTTP Basic Authentication on the site, the feed, downloads and the REST API; QA confirmed a 401 without credentials on each. Rotate ADMIN_PASSWORD in the Environment editor and restart to change it.

What PHP version does COPS 4 need?

Per the fork's README, release 4.x only works with PHP 8.4 or later. You do not manage that here: the LinuxServer image bundles a suitable PHP runtime, which is part of why the version is pinned, and why a pre-3.x configuration may need migrating.

What should I back up on a COPS server?

Your Calibre library from wherever it originates, since COPS never changes it, and the cops_config volume, which holds settings and the thumbnail cache. Keep the access credentials with them. Test a restore, because a library with missing files returns errors rather than books.

Backups in xCloud

How do I upgrade COPS?

Nothing upgrades it for you: the template pins 4.5.4 by immutable digest. Back up cops_config, read the upstream release notes and breaking-change list, then adopt a newer template version when one is published, and confirm the catalog and the OPDS feed still answer.

Is this COPS cloud hosting?

It is your own COPS on a dedicated Cloud VPS provisioned by xCloud, not a hosted ebook service. The gateway, the container, both volumes and the password belong to your install, and the catalog is served over HTTPS on your domain.

Can I cancel anytime?

Yes. There is no lock-in — cancel any time. Hosting is billed monthly and charged for what you actually use, so when you delete the server the unused balance is refunded to your account, less up to 10% in payment-processing fees.