Top 12 Open-Source Alternatives to RapidAPI

RapidAPI

API marketplace for finding and connecting to the world's top APIs.

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Official Pricing

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Product categories

API Tools Developer Tools APIs Developer APIs API API Testing Productivity Realtime Backend / API Web Service Automation API Clients API Design API Management

Summary

The top open-source alternatives to RapidAPI are Postman, APILayer, and Abstract APIs. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Postman Landing Page
1

Postman

The Collaboration Platform for API Development
Pricing:
- Open Source
#API Tools #Developer Tools #APIs 30 social mentions
APILayer Landing Page
2

APILayer

API marketplace and ready to run app backends for your mobile app and website.
Pricing:
- Open Source
- Freemium
- Free Trial
#API Tools #Developer Tools #API Marketplace 5 social mentions
Abstract APIs Landing Page
3

Abstract APIs

Simple, powerful APIs for everyday dev tasks
Pricing:
- Open Source
#Productivity #API Tools #Developer Tools
StopLight Landing Page
4

StopLight

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.
Pricing:
- Open Source
- Freemium
- Free Trial
#API #API Tools #API Management 33 social mentions
Moesif Landing Page
5

Moesif

Grow and Monetize API Products
Pricing:
- Open Source
- Freemium
- Free Trial
#API Tools #Recurring Billing #Web Analytics 1 social mentions
Insomnia REST Landing Page
6

Insomnia REST

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.
Pricing:
- Open Source
#API #API Tools #Developer Tools 134 social mentions
Pipedream Landing Page
7

Pipedream

Integration platform for developers
Pricing:
- Open Source
#API Tools #Automation #Workflow Automation 51 social mentions
Algorithmia Landing Page
8

Algorithmia

Algorithmia makes applications smarter, by building a community around algorithm development, where state of the art algorithms are always live and accessible to anyone.
Pricing:
- Open Source
#API Tools #Data Science And Machine Learning #Web Service Automation 5 social mentions
Treblle Landing Page
9

Treblle

End to End APIOps Platform
Pricing:
- Open Source
- Freemium
- Free Trial
- $25 / Monthly (For 1 Workspace, 1 API, 250,000 Requests / mo)
#API Tools #Error Tracking #Realtime Backend / API 28 social mentions
Hoppscotch Landing Page
10

Hoppscotch

Open source API development ecosystem
Pricing:
- Open Source
- Freemium
- Free Trial
#Productivity #API Tools #Developer Tools 102 social mentions
OneSignal Landing Page
11

OneSignal

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.
Pricing:
- Open Source
- Freemium
- Free Trial
- $9 / Monthly (Plus usage-based costs. (Growth Plan). )
#Email Marketing #API Tools #Realtime Backend / API 28 social mentions
cURL Landing Page
12

cURL

cURL is a computer software project providing a library and command-line tool for transferring data...
Pricing:
- Open Source
#API Tools #Developer Tools #APIs 129 social mentions

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RapidAPI discussion

Agent-reic
· 11 months ago
· Reply

Interesting product.
Samudo
· over 1 year ago
· Reply

RapidAPI makes it incredibly easy to discover, test, and connect to thousands of APIs in one place. It’s a powerful platform for developers looking to streamline API integration and accelerate project development.