Best Free API Management Software
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Compare the Top Free API Management Software as of October 2025
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What is Free API Management Software?
API management software is designed to help organizations create, manage, secure, and monitor APIs throughout their lifecycle. These tools enable businesses to expose their APIs to developers, control access, enforce security policies, and ensure optimal performance. Key features typically include API gateway functionality, authentication and authorization, traffic monitoring, rate limiting, analytics, and version control. API management software also helps with the documentation, testing, and debugging of APIs, as well as integrating with third-party services. It is commonly used to ensure seamless and secure communication between different systems, services, and applications, particularly in microservices architectures and cloud environments. Compare and read user reviews of the best Free API Management software currently available using the table below. This list is updated regularly.
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1
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. -
2
People Data Labs
People Data Labs
We build workforce data, so you don't have to. People Data Labs provides comprehensive workforce profiles built with quality, coverage, and depth in mind. We collect, standardize, and refresh data, so you can build innovative products.Starting Price: $0 for 100 API Calls -
3
Qorus Integration Engine
Qore Technologies
Qorus Integration Engine® is the only No-Code for Coders solution, enabling software engineers to rapidly create and maintain enterprise apps through a combination of building block construction, configuration, and custom coding in a highly flexible, open-source platform. Qorus includes AI automation, fault tolerant workflows, native Python - Java language integration, and a data provider API that automatically introspects and interfaces with any system independently of the underlying API or integration technology. Qorus is available as a paid enterprise edition, and a FREE, fully functional community edition.Starting Price: $250 per month -
4
Linx
Twenty57
A powerful iPaaS platform for integration and business process automation. Linx is a powerful platform for building custom integrations at scale. The platform provides enterprise-grade capability and unparalleled flexibility to cater to a wide range of integration use cases for today’s growing businesses, including application integration, data synchronization, data migration, automations, and rapid API development and management. Linx is a low-code, desktop-based iPaaS that enables organizations to connect their cloud and on-premise applications, data sources.Starting Price: $599 per month -
5
Boss Insights
Boss Insights
Boss Insights’ platform digitizes lending to grow relationships between banks and their business clients. Thanks to Amazon style advancement, there is a growing divide between lenders’ service and businesses’ expectations. Banks excel in regulation, however, operate with limited information on their business clients (out of date and gathered manually). Boss Insights’ API hub empowers lenders to bridge the divide. APIs are the most efficient way to digitize existing processes enabling accelerated service and a complete view in real time. The platform is used to accelerate SBA, SMB and Commercial Lending from months to minutes. It also supports cross-selling products empowering banks and credit unions to proactively serve customers. -
6
Unleash
Bricks Software AS
Unleash is an open-source feature management software, built with large enterprises in mind. It's private, secure, scalable, and ready for the most complex setups out-of-the-box. Move from all-or-nothing releases to safe and frequent deployments Instead of perfecting a merge and fixing bugs when a set of features go live, you can release individual changes to your users, then immediately roll them back if something goes wrong. Scale your software and infrastructure at your own pace Reduce the complexity of feature flag management and tracking through a simple, user-friendly dashboard. Keep your user data to yourself. Full stop. Unleash offers private instances as part of its SaaS package. With assets like its proxy and Edge offerings, SaaS Unleash user data remains entirely with the customer. Significantly cut costs and reduce the drain on resources Reduce a significant amount of administrative costs, technical debt and helps you focus on the feature flags' benefits.Starting Price: $0 -
7
Tyk
Tyk Technologies
Tyk is a leading Open Source API Gateway and Management Platform, featuring an API gateway, analytics, developer portal and dashboard. We power billions of transactions for thousands of innovative organisations. By making our capabilities easily accessible to developers, we make it fast, simple and low-risk for big enterprises to manage their APIs, adopt microservices and adopt GraphQL. Whether self-managed, cloud or a hybrid, our unique architecture and capabilities enable large, complex, global organisations to quickly deliver highly secure, highly regulated API-first applications and products that span multiple clouds and geographies.Starting Price: $600/month -
8
Zuplo
Zuplo
We’re reinventing API & MCP management for everybody, from startups to enterprises. Add authentication, analytics, rate-limiting, and developer documentation to your APIs and MCP servers in minutes. Protect your API by adding rate-limiting with Zuplo in minutes, and add over 50 available plugins like authentication to your API with a single click. Zuplo was built on the edge and deployed to +300 data centers in the world, which makes multi-cloud deployments first-class. With Zuplo you can run different workloads in different clouds while enforcing a unified set of security policies. Zuplo is the only API gateway that runs your OpenAPI spec directly. Leverage the OpenAPI ecosystem to build your API, and then deploy it to Zuplo without additional configuration. Zuplo automatically generates beautiful docs for your API. You can customize the docs with markdown and devs can self-serve API Keys directly from your docs. You can also directly generate hosted MCP servers from your OpenAPI.Starting Price: $0 per month -
9
Azure API Management
Microsoft
Manage APIs across clouds and on-premises: In addition to Azure, deploy the API gateways side-by-side with the APIs hosted in other clouds and on-premises to optimize API traffic flow. Meet security and compliance requirements while enjoying a unified management experience and full observability across all internal and external APIs. Move faster with unified API management: Today's innovative enterprises are adopting API architectures to accelerate growth. Streamline your work across hybrid and multi-cloud environments with a single place for managing all your APIs. Help protect your resources: Selectively expose data and services to employees, partners, and customers by applying authentication, authorization, and usage limits. -
10
Xano
Xano
Xano is the unified backend for building and deploying production-grade apps and AI agents. Instead of stitching together databases, runtimes, APIs, auth, integrations, and monitoring—plus a separate orchestrator for agents—Xano provides everything in one secure, scalable platform. Teams can model data, compose logic, expose secure APIs, and integrate with any system, while AI agents can use data and APIs, call external tools, and run server-side with observability and guardrails. Build visually, with AI, or in code from your IDE, then deploy with one click and scale automatically. Xano works with any frontend, including Lovable, Bolt, WeWeb, Retool, and custom code, so you don’t need to rebuild as you grow. Compliance, reliability, and scaling are built-in, enabling teams to focus on the business logic that makes their software unique.Starting Price: Free -
11
Ambassador
Ambassador Labs
Ambassador Edge Stack is a Kubernetes-native API Gateway that delivers the scalability, security, and simplicity for some of the world's largest Kubernetes installations. Edge Stack makes securing microservices easy with a comprehensive set of security functionality, including automatic TLS, authentication, rate limiting, WAF integration, and fine-grained access control. The API Gateway contains a modern Kubernetes ingress controller that supports a broad range of protocols including gRPC and gRPC-Web, supports TLS termination, and provides traffic management controls for resource availability. Why use Ambassador Edge Stack API Gateway? - Accelerate Scalability: Manage high traffic volumes and distribute incoming requests across multiple backend services, ensuring reliable application performance. - Enhanced Security: Protect your APIs from unauthorized access and malicious attacks with robust security features. - Improve Productivity & Developer Experience -
12
DronaHQ
DronaHQ
DronaHQ is a low-code platform to build internal tools and custom apps for the web and mobile. Developers and engineering teams use this platform to create admin panels, CRUD apps, GUI for Databases or APIs, forms, dashboards & operational apps. Key features include: - Customizable UI components - Mobile + Web app output - 10x faster app development - Seamless integration to any existing tech stack - Scalable cloud-based architecture - Over 50 Engineering Support Hours (UVP) - Free forever developer plans With 3000+ Apps built and 1 million+ users supported, DronaHQ is a platform trusted by global companies.Starting Price: $0/month -
13
Directus
Monospace Inc
Directus is an Open Data Platform for managing the content of any SQL database. It provides a powerful API layer for developers and an intuitive App for non-technical users. Written entirely in JavaScript (primarily Node.js and Vue.js), Directus is completely open-source, modular, and extensible, allowing it to be fully tailored to your exact project needs. With Directus Cloud, we've taken our open-source spirit to the cloud by offering Directus Community Cloud, a completely free tier - without quotas or limitations. It's ideal for hobby projects and demos, and when you're ready for production, Standard Cloud has the power and infrastructure options you need. Our pricing is usage-based, which means you only pay for what you use. Use Directus on your next headless cms, internal tool, or SaaS project, or use our Insights for better data management and analytics. With Directus, you're only limited by your imagination.Starting Price: Free -
14
Backendless
Backendless
Backendless is a Visual App Development Platform (VADP) that combines API, user, and database management functionality with a user-friendly, web-based interface and UI Builder. Backendless offers the ability to send emails and push notifications and supports real-time chat and geolocation-based functionality. A Backendless application can be customized with manually written code or using our Codeless logic builder. The platform can be hosted on our cloud servers or installed and managed on your own private servers. The Backendless UI Builder allows you to build fully functional web and mobile apps. You can use the UI Builder, or Backendless works seamlessly with virtually any client-side environment, automatically morphing data to the proper format for the frontend operating system. A Backendless database can also be connected to external databases, allowing you to maintain existing data sources while also being able to manage those databases using Backendless' intuitive interface.Starting Price: $15.00/month -
15
Advantage CSP
Advantage CSP
Advantage CSP is an enterprise-class content services platform that powers complex websites, mobile apps, and business applications while offering the flexibility to adapt to each organization's unique processes and workflows. From public-facing websites to business applications that drive organizational processes, Advantage CSP unifies an enterprise for efficiency. Centrally manage thousands of sites using just one interface. 30% faster development and deployment time compared to a traditional CMS. Spend less time on coding and more time on scaling your business. The multi-tenant architecture enables multi-site and multi-language deployments from a single dashboard. Effortlessly help your team efficiently create beautiful digital experiences for every user on any device. Achieve true flexibility and power.Starting Price: $79 per month -
16
SyncTree
Ntuple
SyncTree strives to be a "Super Connecting Platform" that can easily connect any services you want. With SyncTree, which consists of SyncTree STUDIO, a solution for building backend business logic with block coding, and Block Store, a platform for buying and selling pre-made backend function blocks like App Store, you can organically utilize data and connect services to achieve unlimited service expansion. Based on aPaaS, Block Store provides APIs from various services such as ChatGPT, DALLE, YouTube, etc. in the form of 'backend function blocks', which you can subscribe to and then combine as you want quickly in SyncTree STUDIO to build your business logic. SyncTree is for everyone, whether you're an individual or a business, and you can subscribe and use it according to your needs, from the free version to the PRO version.Starting Price: Free/1Month/3,000 Call -
17
holidays.rest
holidays.rest
holidays.rest provides the most accurate and comprehensive holiday data delivered at blazing speed for customers at any scale. Cover national, public, and religious holidays for 190+ countries in milliseconds with our RESTful API. We take pride in delivering authentic, accurate data. Our API exclusively offers real historical information without artificial records. For example, it recognizes that October 3rd wasn’t German Unity Day in 1985 because Germany wasn’t unified at the time—something many other APIs fail to account for. We also don’t provide fictional data. The United Nations recognizes 195 countries, with an additional 9 partially recognized states. Unlike others, we don’t exaggerate by claiming to cover 250 countries. Our pricing is straightforward: all plans give you full access to the capabilities of our API, without restrictions on parameters or features. No hidden limitations—just simplicity.Starting Price: $39/month -
18
DreamFactory
DreamFactory Software
DreamFactory Software is the fastest way to build secure, internal REST APIs. Instantly generate APIs from any database with built-in enterprise security controls that operates on-premises, air-gapped, or in the cloud. Develop 4x faster, save 70% on new projects, remove project management uncertainty, focus talent on truly critical issues, win more clients, and integrate with newer & legacy technologies instantly as needed. DreamFactory is the easiest and fastest way to automatically generate, publish, manage, and secure REST APIs, convert SOAP to REST, and aggregate disparate data sources through a single API platform. See why companies like Disney, Bosch, Netgear, T-Mobile, Intel, and many more are embracing DreamFactory's innovative platform to get a competitive edge. Start a hosted trial or talk to our engineers to get access to an on-prem environment!Starting Price: $1500/month -
19
Gravitee.io
Gravitee.io
Gravitee.io is the easiest to use, most performant and cost-effective Open Source API Platform that helps your organization to secure, publish and analyze your APIs. Use the power of Gravitee.io to manage identities with our OAuth2, OpenID Connect (OIDC) and Financial-grade API (FAPI) certified server. Gravitee.io APIM is a flexible, lightweight and blazing-fast open source API Management solution that helps your organization control finely who, when and how users access your APIs. With strong governance features such as API review and API quality and our market leading API designer, Gravitee.io enables you to design, manage, deploy and monitor your APIs in a secure and governed way. A branded Gravitee.io portal enables your API consumers to fully engage with your business - delivering high quality engagement for your business in the digital age.Starting Price: $2500 per month -
20
One APIMarketplace
DigitalAPICraft
Publish, consume, collaborate, accelerate your API journey, and enhance developer experience with our enterprise-grade, API platform-agnostic One APIMarketplace. Reduces API sprawl and API complexities through the operationalization of APIs, making them discoverable, consumable, easy to access, easy to collaborate, and more. One APIMarketplace brings down the time to market by effectively increasing the API adoption, through ease of access, API usage, and performance insights to boost the API consumption. Empower developers with intuitive documentation, community engagement, resources, SDKs, and sandboxes to accelerate API adoption. One APIMarketplace streamlines the discovery and usage of your APIs, guaranteeing a smooth and hassle-free experience for developers and businesses alike. Access comprehensive documentation and test APIs in a sandbox before integration. Gain insights into API usage, performance, and user behavior with our analytics dashboard.Starting Price: $99 per month -
21
Csmart Network API Enablement Platform
Covalense Digital Solutions
Csmart is a secure, cloud-native API gateway tailored for telecom operators, MVNOs, MVNEs, and enterprises looking to become platform-driven TechCos. It enables seamless exposure, governance, and monetization of network services—such as messaging, location, voice/video, billing, and IoT—through TM‑Forum–aligned APIs. The platform delivers granular access control, real-time usage analytics, and flexible pricing models, transforming network assets into revenue streams. Low-code onboarding and multi-tenant architecture accelerate time-to-market and ensure scalable operations. AI-powered observability adds anomaly detection and self-healing capabilities for resilient performance. Whether enabling internal innovation or launching partner ecosystems, Csmart makes network capabilities consumable, controllable, and monetizable by design. -
22
PrestoAPI
PrestoAPI
Eliminate the need for back-end development. Easily connect to your database using the connection string or server address. Customize your API methods by choosing the data to create, read, update, or delete. Presto! Your API is ready for use by your front-end development team. No back-end necessary. PrestoAPI currently supports SQL Server, MySQL, PostgreSQL, MongoDB, and Oracle database systems. Assign roles to users throughout the application or to specific projects. PrestoAPI is secured through Identity Server, OAuth 2.0, and Active Directory.Starting Price: $49 per month -
23
Fusio
Apioo
Fusio is an open source API management platform which helps to build and manage REST APIs. Through Fusio you can quickly build a state of the art API, set up a developer portal and monetize your API. Fusio provides a simple to use and intuitive backend. Through the backend it is possible to control and manage the complete API. Fusio provides a ready to use developer portal app which you can use to set up your API program. This is the place where developers can register to consume your API. Fusio contains many actions which you can use out of the box to solve various tasks. I.e. to proxy HTTP requests to an internal API or generate an API based on a database table. This means you can build APIs in a Low-Code style without the need to write complex code. Fusio contains a Worker-System which allows you to develop actions in different programming languages, Fusio currently supports Java, Javascript, PHP and Python.
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