Mockable

Quickly define some REST or SOAP endpoints and have them return json/xml (dummy) data.

15 Alternatives To Mockable

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AppDoctor

Small businesses looking to ensure API health so their apps don’t fail turn to AppDoctor for API monitoring that can do it all but at an affordable cost.
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Beeceptor

Build a mock Rest API endpoint in seconds.

Celery Project

Celery is an asynchronous task queue/job queue based on distributed message passing.
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MockServer

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

Mockito

Mocking framework for unit tests in Java.

Mocklets

A HTTP-based API simulator to assist parallel development 🛠️

Mocky

A window into your team’s Dropbox activity and projects

Postman Collections

Biggest library of ready-made API collections for Postman
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Request inspector

Debug web hooks, http clients

RequestBin

RequestBin gives you a URL that will collect requests made to it and let you inspect them in a…

RequestWatch

Inspect and debug HTTP requests

Runscope

Log, monitor and measure your API usage to solve API problems fast.

WireMock

WireMock - a web service test double for all occasions.