Top 20 open-source products relevant to API Tools

The Collaboration Platform for API Development.

Open Source

Open source API development ecosystem.

Open Source freemium

Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.

Open Source

Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.

Open Source freemium $9.0 / Monthly (Plus usage-based costs. (Growth Plan). )

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

Open Source free

DreamFactory is an API management platform used to generate, secure, document, and extend APIs.

Open Source freemium

Hasura is an open platform to build scalable app backends, offering a built-in database, search, user-management and more.

Open Source

Sanity.io a platform for structured content that comes with an open-source editor that you can customize with React.js.

Open Source freemium

Integration and automation platform for growing businesses .

Open Source freemium $149.0 / Monthly (Cloud server)

Node-RED is a programming tool for wiring together hardware devices, APIs and online services in new and interesting ways.

Open Source

Build agents that monitor and act on your behalf. Your agents are standing by!

Open Source

Dash is an API Documentation Browser and Code Snippet Manager. Dash searches offline documentation of 200+ APIs and stores snippets of code. You can also generate your own documentation sets.

Open Source

cURL is a computer software project providing a library and command-line tool for transferring data...

Open Source

Swagger is an open source RESTapi Documentation Tool.

Open Source

Open source no-code database and Airtable alternative. Create your own online database without technical experience. Performant with high volumes of data, can be self hosted and supports plugins.

Open Source freemium

Tyk is an open-source API gateway and API management platform.

Open Source

Hookdeck makes it simple to build and deploy reliable, testable, and debuggable applications that rely on webhooks.

Open Source

Stoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality in your API lifecycle, all with an easy, enjoyable developer experience. .

Open Source freemium

Gravitee.io is a flexible, lightweight and an open source API management solution.

Open Source freemium

Easy mocking of any system you integrate with via HTTP or HTTPS.

Open Source