JSONPlaceholder
jsonplaceholder.typicode.com
JSONPlaceholder - Free Fake REST API
fetch('https://jsonplaceholder.typicode.com/todos/1') .then(response => response.json()) .then(json => console.log(json)) Run script
JSON:API
jsonapi.org › examples
JSON:API — Examples
In the example below, the user is sending an invalid JSON:API request, because it’s missing the data member:
Videos
04:11
JSON API: Explained in 4 minutes (+ EXAMPLES) - YouTube
04:32
Restful JSON API Design Using Open API - YouTube
11:42
Build a Mock REST API in Seconds with JSON Server - YouTube
26:56
Beginners Guide to APIs and Parse JSON in the Power Platform - YouTube
02:57
What is JSON? Simple Explanation with Real API Examples! #coding ...
42:43
Sample Data and Filtering - Building a Sample API in C# - YouTube
DummyJSON
dummyjson.com
DummyJSON - Free Fake REST API for Placeholder JSON Data
DummyJSON provides a free fake REST API with placeholder JSON data for development, testing, and prototyping. Access realistic data quickly for your projects.
Apipheny
apipheny.io › free-api
Free API – 90+ Public APIs For Testing [No Key] – Apipheny
Sample URL: https://api.ipify.org?format=json · Get information about a specified IP address, such as geological info, company, and carrier name. Sample URL: https://ipinfo.io/161.185.160.93/geo · Get random jokes. You can also get jokes according to type (e.g., programming jokes only).
HCL Software
help.hcl-software.com › onedb › 2.0.1 › rest › rest_011.html
REST API Examples: JSON Collections
This topic provides a tutorial on accessing and querying JSON/BSON data in collections through REST.
Unit
unit.co › about json:api
About JSON:API | Unit
JSON:API requires the use of the JSON:API media type (application/vnd.api+json) for exchanging data.
JSON:API
jsonapi.org
JSON:API — A specification for building APIs in JSON
Its media type designation is application/vnd.api+json.
CRAN
cran.r-project.org › web › packages › jsonlite › vignettes › json-apis.html
Fetching JSON data from REST APIs
A single public API that shows location, status and current availability for all stations in the New York City bike sharing imitative. citibike <- fromJSON("https://gbfs.citibikenyc.com/gbfs/en/station_information.json") stations <- citibike$data$stations colnames(stations)
Salesforce Developers
developer.salesforce.com › docs › atlas.en-us.api_asynch.meta › api_asynch › datafiles_json_sample_file.htm
Sample JSON File | Bulk API 2.0 and Bulk API Developer Guide | Salesforce Developers
This JSON sample includes two records for the Account object. Each record contains three fields. You can include any field for an object that you’re processing. If you use this file to update existing accounts, fields not defined in the JSON file are ignored during the update.
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Twitter has a public API which returns JSON, for example -
A GET request to:
https://api.twitter.com/1/statuses/user_timeline.json?include_entities=true&include_rts=true&screen_name=mralexgray&count=1,
EDIT: Removed due to twitter restricting their API with OAUTH requirements...
{"errors": [{"message": "The Twitter REST API v1 is no longer active. Please migrate to API v1.1. https://dev.twitter.com/docs/api/1.1/overview.", "code": 68}]}
Replacing it with a simple example of the Github API - that returns a tree, of in this case, my repositories...
https://api.github.com/users/mralexgray/repos
I won't include the output, as it's long.. (returns 30 repos at a time) ... But here is proof of it's tree-ed-ness.

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JSON Test has some
try its free and has other features too.
http://www.jsontest.com/
Google
developers.google.com › custom-search › v1 › overview
Custom Search JSON API | Google for Developers
January 20, 2026 - With Google Cloud Operations you can create custom dashboards, set up alerts, and access metrics data programmatically. To access Custom Search JSON API usage data in Google Cloud Operations, select "Resource type: Consumed API" and filter on "service = 'customsearch.googleapis.com'" in the Query Builder.
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › API › Response › json
Response: json() method - Web APIs | MDN
In our fetch JSON example (run fetch JSON live), we create a new request using the Request() constructor, then use it to fetch a .json file.
Medium
medium.com › @niranjan.cs › what-is-json-api-3b824fba2788
What is JSON API?. A brief post about what JSON API… | by Niranjan Sathindran | Medium
November 8, 2019 - With that covered, I want to discuss JSON APIs with what would be its potential use cases. JSON API targets cases where typical standard MIME type (think application/json) data exchange becomes too chatty. Lets talk about about that “chattiness” using an example here, and for simplicity I’ll use the same example used by jsonapi.org.
Adobe
opensource.adobe.com › Spry › samples › data_region › JSONDataSetSample.html
JSON Data Set Sample
The JSON output from different Server APIs can range from simple to highly nested and complex. The examples on this page attempt to illustrate how the JSON Data Set treats specific formats, and gives examples of the different constructor options that allow the user to tweak its behavior.
GitHub
github.com › typicode › json-server
GitHub - typicode/json-server: Get a full fake REST API with zero coding in less than 30 seconds (seriously) · GitHub
3 weeks ago - Get a full fake REST API with zero coding in less than 30 seconds (seriously) - typicode/json-server
Starred by 75.6K users
Forked by 7.3K users
Languages JavaScript 91.7% | HTML 8.3%
ReqBin
reqbin.com › req › enuzjzmm › test-json-api
How do I test JSON API?
December 4, 2022 - ReqBin is the best online JSON API testing tool. Test JSON API endpoints by sending JSON API requests directly from your browser. Validate returned JSON strings with JSON syntax highlighting and code validators.