Best API Management Software For Free
Top picks for API Management Software available for Free
Unleash the potential of global flight data.
Free trial not available
Freemium
Starts from $44.99/month when yearly
Effortlessly monitor and conquer your APIs.
Free trial not available
Freemium
Starts from $349/Month
Transform spreadsheets into powerful APIs effortlessly.
Free trial not available
Freemium
Starts from $5/Month
Showing 61-68 out of 68

List of the Best API Management Software For Free as of September 2026

Aviationstack API
Unleash the potential of global flight data.
Best for: SMB teams · Mid-market · Enterprise
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What is Aviationstack API?
Harness the power of real-time flight tracking and global aviation data with Aviationstack's free, scalable API. Trusted by over 5,000 companies, Aviationstack provides extensive information on flights, airports, airlines, and more, covering 250+ countries and over 13,000 airlines. Begin ...
Read more about Aviationstack APIStarts from $44.99/month when yearly, also offers free forever plan
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What is API Tracker?
API Tracker: The ultimate solution for tracking and managing APIs. Delivering on its promise to provide reliable API integrations, API Tracker allows developers to easily monitor and manage their integrations without having to keep track of network calls or set up APM. This SaaS product offers ...
Read more about API TrackerStarts from $349/Month, also offers free forever plan

SheetBest
Transform spreadsheets into powerful APIs effortlessly.
Best for: SMB teams · Mid-market · Enterprise
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What is SheetBest?
SheetBest makes your Google Spreadsheets quickly and easily convertible into a JSON API. You can build data structures faster than ever before; so that validating an idea has never been simpler. Forget about the complexity of a database model and retain the same formulas you are used to. Share ...
Read more about SheetBestStarts from $5/Month, also offers free forever plan

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What is Napkin?
Napkin is a platform designed to let developers, small businesses, and medium companies design and run API endpoints instantly. It has an in-browser linter and tester to easily view code errors. The cloud support helps to save and back up your code, so you can view the response instantly. ...
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What is Apigum?
Apigum provides a fast and easy way for business owners to import data from APIs into their Google Sheets. It takes the hassle out of automation, giving entrepreneurs more time to focus on the essential elements of their work. With Apigum, users can effortlessly set up API requests in minutes, ...
Read more about ApigumStarts from $17/Month when Billed Yearly, also offers free forever plan
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What is RSS API?
RSS API provides powerful data access via a simple API and real-time updates through Webhooks. It supports a variety of feed formats, including RSS, RDF, ATOM and JSON-feed, and will normalize them into a unified JSON output. The integrated dashboard helps manage subscriptions, view stats, and ...
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What is Port?
Port is an all-in-one platform to provide developers with access to the tools and information they need to efficiently create great products. Users can customize the portal to their exact preferences to find the services, software, CI/CD pipelines, cloud environments, deployments, and more. ...
Read more about PortStarts from $19/User/Month, also offers free forever plan

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What is ExoAPI?
ExoAPI is a universal API for developers that simplifies collaboration and prototyping like never before. With a single subscription, you will have access to an expansive library of easy-to-implement APIs. Whether you're just starting out in the development world or a professional wanting to ...
Read more about ExoAPICompare Top Products
About the reviewer
Rajat Gupta is the founder of Spotsaas. Over the past two years, he has reviewed 2,000+ tools across CRM, HR, AI, and finance — applying hands-on product research and a background in commerce and the CFA program to evaluate software through a business and ROI lens. His goal: help teams make software decisions they won't regret.
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].






