Software Alternatives & Startups

Public API VS CloudLinux

Compare Public API VS CloudLinux and see what are their differences

Public API

Discover, compare, and integrate public APIs using real-time health monitoring, OpenAPI documentation, and live availability signals.

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CloudLinux

Making Linux secure, stable, and profitable for thousands of hosting providers and data centers worldwide.

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0 reviews
Pricing
Open source
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Base details

Website, pricing, platforms and company facts side by side.

PAP
Public API
CloudLinux
Website public-api.org cloudlinux.com
Pricing —
Open source
Listed in

Features and specs

What each product offers, as listed by its team.

PAP
Public API 5 features
CloudLinux 5 features
  • Free to Use
    Public API is completely free, making it accessible to developers of all levels without any financial barrier to entry. This is particularly beneficial for hobbyists, students, and those working on personal projects.
  • Comprehensive Directory
    The platform provides a well-organized directory of hundreds of free public APIs across numerous categories such as animals, finance, weather, games, and more, making it easy to discover useful APIs for various projects.
  • Simple and Clean Interface
    The website offers a straightforward, easy-to-navigate interface that allows developers to quickly browse, search, and filter APIs by category, HTTPS support, CORS availability, and authentication requirements.
  • Open Source
    The project is open source, meaning the community can contribute to it, suggest new APIs, report issues, and help maintain the directory, ensuring it stays up-to-date and relevant.
  • Useful Metadata
    Each API listing includes helpful metadata such as whether it supports HTTPS, requires authentication, and supports CORS, which helps developers quickly assess if an API meets their technical requirements before diving deeper.

Possible disadvantages

  • No Quality Assurance
    The platform acts as a directory and does not verify or guarantee the reliability, uptime, or quality of the listed APIs. Some APIs may be outdated, broken, or poorly maintained without any indication on the listing.
  • Limited API Details
    The listings provide only basic information about each API. Developers often need to visit the actual API documentation separately to understand endpoints, rate limits, response formats, and other critical details.
  • Outdated Listings
    Some APIs listed on the platform may no longer be active or may have changed their terms, endpoints, or availability. The directory doesn't always reflect the current status of every listed API in real time.
  • No User Reviews or Ratings
    The platform lacks a community feedback system such as user reviews, ratings, or usage statistics, making it harder for developers to gauge the real-world reliability and usefulness of a listed API before committing to it.
  • Limited Search and Filtering
    While basic category browsing is available, the search and filtering capabilities are relatively limited compared to more advanced API marketplaces. There is no ability to filter by popularity, response speed, or data format, for example.
  • Enhanced Server Stability
    CloudLinux uses its lightweight virtualization technology (LVE) to isolate each tenant on a shared hosting server, preventing any single user from consuming excessive resources and crashing the server for everyone else. This ensures consistent uptime and performance.
  • Improved Security with HardenedPHP and KernelCare
    CloudLinux offers HardenedPHP, which patches old and unsupported PHP versions against known vulnerabilities, and KernelCare, which provides live kernel patching without requiring server reboots. These features significantly enhance server security posture.
  • Resource Limit Management
    Administrators can set granular resource limits (CPU, memory, I/O, number of processes, etc.) per user account using LVE Manager. This makes it easy to manage shared hosting environments and ensure fair resource distribution among tenants.
  • CageFS File System Virtualization
    CageFS creates a virtualized file system for each user, preventing them from seeing other users on the server, viewing sensitive configuration files, or exploiting server vulnerabilities. This adds an important layer of isolation and security.
  • Wide Compatibility with Hosting Panels
    CloudLinux integrates seamlessly with popular hosting control panels such as cPanel, Plesk, and DirectAdmin, making it straightforward for hosting providers to adopt without overhauling their existing infrastructure or workflows.

Possible disadvantages

  • Additional Licensing Cost
    CloudLinux requires a paid monthly or annual license on top of the base server cost. For smaller hosting providers or individual server owners, this additional expense can add up and may not always be justifiable compared to free alternatives.
  • Limited to CentOS/RHEL-Based Systems
    CloudLinux is built on top of RHEL/CentOS and does not support other Linux distributions like Ubuntu or Debian. This limits its adoption for hosting providers who prefer or already run non-RHEL-based environments.
  • Learning Curve for Configuration
    While CloudLinux provides powerful resource management tools, properly configuring LVE limits, CageFS, PHP Selector, and other features requires a solid understanding of the platform. Misconfiguration can lead to users being unnecessarily restricted or resources being poorly allocated.
  • Potential Performance Overhead
    The additional layers of virtualization, resource monitoring, and file system isolation introduced by CloudLinux can impose a slight performance overhead on the server compared to running a bare, unmodified Linux distribution without these controls.
  • Dependency on CloudLinux Ecosystem
    Adopting CloudLinux means relying on their ecosystem for kernel updates, PHP patches, and security fixes. If the company experiences delays in releasing patches or changes its pricing/licensing model, hosting providers may find themselves locked into a dependency that is difficult to migrate away from.

Analysis

An editorial look at what each product does well and who it suits.

PAP
Public API
CloudLinux

Overall verdict

  • Public API (public-api.org) is a useful directory and aggregator site that helps developers discover free and public APIs across many categories, but it is a curation/listing service rather than an API provider itself, so its value depends on the quality and reliability of the third-party APIs it links to.

Why this product is good

  • Offers a centralized, searchable directory of numerous free and public APIs across diverse categories
  • Saves developers time by aggregating API options instead of searching individually across the web
  • Often includes brief descriptions, categories, and links to documentation for quick evaluation
  • Useful for discovering lesser-known or niche APIs that might not be found through mainstream searches
  • Generally free to browse and use as a discovery tool

Recommended for

  • Developers looking to quickly find free or public APIs for a project
  • Students and hobbyists exploring API integration for learning purposes
  • Startups seeking cost-effective third-party API options during early development
  • Researchers or hackathon participants needing rapid access to varied data sources
  • Anyone wanting a starting point for API discovery rather than a guaranteed production-grade API provider

Overall verdict

  • CloudLinux is a well-regarded, mature Linux OS distribution and toolset specifically designed for shared hosting and multi-tenant server environments, offering strong isolation, resource management, and security features that make it a solid choice for hosting providers.

Why this product is good

  • Provides LVE (Lightweight Virtual Environment) technology for per-tenant resource isolation, preventing 'bad neighbor' effects on shared servers
  • Enhances server stability and security by isolating users so that one account's issues (crashes, resource spikes) don't affect others
  • Offers extended lifecycle support (longer than standard CentOS/RHEL support windows), which is valuable for legacy systems
  • Includes tools like CloudLinux OS Shield, Imunify360 integration, and hardened kernel options for improved security
  • Compatible with popular control panels like cPanel and Plesk, making it easy to integrate into existing hosting stacks
  • Backed by an established company with a long track record in the hosting industry and responsive support
  • Offers granular control over CPU, memory, I/O, and other resources per user account
  • Provides PHP Selector and multiple PHP version support, useful for hosting providers serving diverse client needs

Recommended for

  • Web hosting companies running shared or reseller hosting environments
  • Hosting providers needing to isolate customer accounts on the same physical server
  • Businesses requiring extended OS support lifecycles beyond standard RHEL/CentOS EOL dates
  • Enterprises using cPanel or Plesk that want tighter security and resource control
  • Hosting companies looking to reduce support tickets caused by noisy-neighbor resource contention
  • IT teams managing multi-tenant infrastructure who need governance and monitoring tools built into the OS layer

Videos

Walkthroughs and reviews on video.

PAP
Public API 0 videos + Add
CloudLinux 3 videos + Add

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When To Use Cloudlinux On Your Virtual Private Server (VPS)

More videos

  • - CloudLinux OS+ in a minute: Explore Features
  • - How CloudLinux Plans to Keep CentOS 6 Alive

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
PAP
Public API
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

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Alternatives to Public API and CloudLinux

When comparing Public API and CloudLinux, you can also consider the following products.