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ApiStacks is an online platform for discovering and integrating third-party APIs. It is aimed at developers and businesses that need reusable services for applications without building every capability in-house.
💡 Pick it for the broadest API marketplace and stronger testing, billing, and monitoring tools.
RapidAPI is a platform that enables developers to find, connect to, and manage APIs. It provides a marketplace with thousands of APIs...
Free plan available, pricing varies based on API usage
💡 Choose it for managed, ready-to-use APIs covering common data and utility functions.
APILayer is a catalog of hosted APIs for services such as currency conversion, IP data, email validation, translation, and image processing. It...
Freemium, paid plans vary by API
💡 Pick it when API testing, documentation, and team collaboration matter more than marketplace discovery.
Postman is a collaboration platform for API development used by millions of developers.
Free with paid plans available
💡 Choose it to control and secure APIs you operate, especially in self-hosted or microservice environments.
Kong is an open-source API gateway and microservices management layer.
Contact sales for pricing
💡 Pick it for governed, OpenAPI-first design and documentation across larger development teams.
SwaggerHub is an integrated API development platform that significantly streamlines API workflow. It enables teams to drive consistency and discipline across the...
Starting from $33/month/user
APIs.guru community
💡 Choose it for a free, open-source directory of public APIs and OpenAPI specifications.
APIs.guru is an open-source directory and machine-readable repository of public OpenAPI definitions. It helps developers discover public APIs and access standardized specifications...
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