Compare the Top API Monitoring Tools for Linux as of July 2025

What are API Monitoring Tools for Linux?

API monitoring tools are software solutions designed to track the performance of an application programming interface (API). These tools can provide insights into API errors, request routing, latency, and other key metrics. They also help identify potential issues such as broken calls or security susceptibilities. Additionally, API monitoring can be used to log all calls made to the API and alert users of any unexpected behaviour. Furthermore, some API monitoring tools are able to recognize trends in user requests that could indicate a need for increased capacity or improved design. Finally, these tools are typically cloud-based and easy to integrate into existing architectures without requiring significant changes. Compare and read user reviews of the best API Monitoring tools for Linux currently available using the table below. This list is updated regularly.

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    KrakenD

    KrakenD

    KrakenD

    KrakenD is a high-performance API Gateway optimized for resource efficiency, capable of managing 70,000 requests per second on a single instance. The stateless architecture allows for straightforward, linear scalability, eliminating the need for complex coordination or database maintenance. It supports various protocols and API specifications, with features like fine-grained access controls, data transformation, and caching. Unique to KrakenD is its ability to aggregate multiple API responses into one, streamlining client-side operations. Security-wise, KrakenD aligns with OWASP standards and doesn't store data, making compliance simpler. It offers a declarative configuration and integrates with third-party logging and metrics tools. With transparent pricing and an open-source option, KrakenD is a comprehensive API Gateway solution for organizations prioritizing performance and scalability.
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  • 2
    Integration Eye
    Integration Eye® is a modular product, which streamlines system integrations, infrastructure, and business. It consists of 3 modules: proxy module IPM, logging module ILM, and the security module ISM, which can be used independently or combined. It is based on the widely used, secure, and platform-independent Java language (why choose Java?) and it runs on the lightweight integration engine Mule™. Using individual Integration Eye® modules, you can monitor your APIs and systems, create statistics on and analyze calls (logging with the ILM module), and be alerted to any problems, downtime, or slow responses of specific APIs and systems. You can secure your APIs and systems using roles (authorization and authentication with the ISM module) based on Keycloak SSO we deliver or your existing Auth server. You can extend or proxy service calls (both internal and external) with mutual SSL, headers, etc. (proxy with IPM) you can also monitor and analyze these calls.
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