Best Mock Servers in 2026

MockAPI lets users mock up APIs, generate custom data, and perform operations on it using RESTful interface.

Key MockAPI features:

Ease of Use Customizable Data Multiple Endpoints Time-saving

ZeroTwo is a premium multi-provider AI platform which combines the tools models and features of Claude, Gemini, Grok, Openai and more into one. Canvas, Deep Research, MCP, Connectors, Agents, Projects and even Apps are all available in one place!

Key ZeroTwo AI features:

Versatility Accessibility Natural Language Understanding Tools

Try for free freemium $19.99 / Monthly (Pro Account)

Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds. .

Key Beeceptor features:

Ease of Use Free Tier Instant Mock Endpoints Customizable Responses

freemium $10.0 / Monthly (Per endpoint)

Mockoon is the easiest and quickest way to design and run mock REST APIs. No remote deployment, no account required, free and open-source.

Key Mockoon features:

User-Friendly Interface Quick Setup Open Source Cross-Platform Support

Open Source paid Free Trial $15.0 / Monthly (5 API mocks synchronized accross your devices, 1 mock deployed)

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

Key Mockable.io features:

Ease of Use Speed Collaboration Customization

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Generate a free mock API endpoint in seconds. No YAML, no Docker, no config. Fake REST API server for frontend developers.

Key MockServer.in features:

Quick and easy setup No coding required Frontend development enablement Customizable responses

freemium $12.0 / Monthly

All-in-One workspace for API Design, Documentation, Debug, Mock, Test.

Key Apidog features:

User-Friendly Interface Comprehensive API Management Collaboration Features Integration Capabilities

freemium $9.0 / Monthly

Test Socket.IO and WebSocket client and server events.

Key FinestCream features:

High Quality Ingredients Clinically Tested Range of Products Positive Customer Reviews

The fastest way to setup you mock endpoint. Your mock API up in just a few clicks, auto generated the RESTfull endpoints you need.

paid Free Trial €3.0 / Monthly (10 resources)

Easily format, validate, and beautify JSON data with our free online tool. Includes powerful JSON conversion features for seamless data management.

free

The Collaboration Platform for API Development.

Key Postman features:

User-Friendly Interface Collaboration Comprehensive Testing Tools Extensive API Documentation

Open Source

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. .

Key StopLight features:

API Design Process Documentation

Open Source freemium

A hosted REST-API ready to respond to your AJAX requests.

Key ReqRes features:

Free and Open Access Comprehensive API Endpoints No Authentication Required Static Data