GUIDE

Mock API in Minutes

MockHub lets you spin up reliable REST & SOAP mock endpoints with scenarios, dynamic variables, headers, rate limits, and OpenAPI import. Perfect for frontend prototyping, integration tests, partner sandboxes, and demos.

Get Started Free Create REST Mock Import OpenAPI
Key Features

Fast Creation

Create an endpoint with method + JSON response in seconds; password protected if desired.

Scenario Engine

Switch responses dynamically (status, delay, error rate) to simulate failures & edge cases.

OpenAPI Import

Parse a spec and auto-generate mock endpoints to accelerate integration work.

AI Mock Generation

Describe your API and let AI draft the JSON body so you tweak only specifics.

Dev Integration Snippets

Ready-to-copy code for cURL, JavaScript, Python, Java, C#, and Apex — includes Bearer token when required.

Auth Options

Bearer tokens for REST; API keys for SOAP operations. Quickly test secured flows.

Daily Stats

Per‑endpoint call counts for usage tracking & rate limit monitoring.

Mock API Quick Start
  1. Sign up free & authenticate (Firebase). Your dashboard tracks limits.
  2. Create REST mock via Generate REST Mock: choose path, methods, JSON body.
  3. Add scenario to simulate latency, errors, fallback responses.
  4. Consume endpoint from your app: it's a real URL with optional required headers.
  5. Scale with OpenAPI import or AI for larger mock sets.
Why MockHub?
Manual MockingUsing MockHub
Local scripts & JSON filesHosted endpoints, shareable immediately
No failure simulationScenarios (delay, error rate, status changes)
Hard to maintain many routesOpenAPI bulk import & grouping
Limited visibilityDaily stats & quota awareness
Ad‑hoc auth hacksBuilt‑in Bearer / API key system
Inconsistent team setup timePredictable 5‑step quick start
Mock API Use Cases

Frontend Prototyping

Unblock UI work while backend evolves; swap to live API later.

Integration Testing

Model success / failure flows without depending on flaky external systems.

Partner Sandbox

Provide controlled mock endpoints to external consumers for trial access.

Demo Environments

Stable responses for product demos & workshops.

Legacy System Replacement

Mirror contract while refactoring internal services.

Mobile Offline Flows

Simulate degraded network latency & error conditions.

SOAP Support

Use SOAP mock generation to create WSDL‑based operations with optional API key protection. Operations get unique URLs and can simulate responses similar to REST scenarios.

FAQ

Is there a free tier?

Yes, create up to 5 combined REST + SOAP items with daily call limits. Upgrade for higher quotas.

Can I import an existing API?

Yes, via the OpenAPI → Mock feature. It parses paths & methods into mocks.

How do scenarios work?

You attach alternate responses with status, delay (ms), and optional error rate; switch active scenario anytime.

Do mocks expire?

Approaching expiry auto‑extends by 2 days on access, keeping active development uninterrupted.

Is authentication required?

Most creation endpoints require Firebase auth; public SOAP mocks can be exposed optionally.

Further reading

See How to Create a Mock API (REST) for a hands-on walkthrough.

Guides View all
Create a Mock API
Getting Started 5 min read
How to Create a Mock API

Step-by-step guide to create a REST mock endpoint, set methods and JSON body.

Read guide
Add a Scenario
Scenarios 4 min read
How to Add a Scenario

Simulate delays, error rates, status changes and alternate responses.

Read guide
AI Body Generation
AI 3 min read
Generate API Body with AI

Draft JSON bodies from short descriptions and refine fields easily.

Read guide
Switch Scenario
Scenarios 2 min read
How to Switch Scenario

Toggle between active scenarios to simulate different behaviors.

Read guide
View and Disable APIs
Management 4 min read
View and Disable Your APIs

Track usage and disable endpoints when not needed.

Read guide
Create a SOAP API
SOAP 6 min read
Create a SOAP API

Generate SOAP services and operations from WSDL with optional API keys.

Read guide
Dev Integration Code Snippets
Developers 3 min read
Dev Integration Code Snippets

Copy-and-paste code for cURL, JS, Python, Java, C#, and Apex.

Read guide

Ready to Accelerate Your API Development?

Start with the free tier—upgrade only when you need more endpoints or higher daily call volumes. Import existing specs or craft new mocks instantly.

Create Account View Pricing Launch REST Mock Tool
Resources: How to Create a Mock API • OpenAPI → Mock