10 realtime data sources you won't believe are free!

This page summarizes the projects mentioned and recommended in the original post on dev.to
asyncapi Reactive Specification Websockets Amqp

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  • spec

    The AsyncAPI specification allows you to create machine-readable definitions of your asynchronous APIs. (by asyncapi)

    • AsyncAPI: Interested in how to define your WebSocket APIs? One of the most advanced realtime specifications is the AsyncAPI specification, which comes with various generators for code and documentation, as well as renderers for the specifications.

  • exchangeratesapi

    Exchange Rates API

    • Exchange Rate: Their REST API interface delivers currency exchange rate data for hundreds of currencies, allowing up to 1,000 monthly requests for free.

  • SurveyJS

    Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

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  • ingester

    A tool for ingesting sources of data into Ably.

    • Ably Labs Ingester: Ably Labs is Ably’s GitHub playground for open-sourced realtime messaging projects powered by Ably Realtime. This tool is intended for getting various sources, regardless of protocol or structure, into Ably.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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