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ReqRes Pro - custom JSON
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ReqRes Pro - custom JSON
Add custom JSON responses to your own endpoints
# API Design
Featured on : Jul 10. 2025
Featured on : Jul 10. 2025
What is ReqRes Pro - custom JSON?
ReqRes Pro adds custom endpoints & unlimited requests to the popular mock API. Design any JSON, test edge cases before your backend exists. Includes priority bandwidth + support.
Problem
Users relying on basic mock APIs without the ability to create custom JSON responses and limited request capacity, hindering thorough backend testing and edge-case simulations.
Solution
A mock API tool that lets users design custom JSON endpoints and test edge cases with unlimited requests, enabling API testing before backend development. Example: Simulate payment failure responses.
Customers
Developers, QA engineers, and product managers building or testing APIs.
Unique Features
Customizable JSON endpoints, priority bandwidth, scalable request handling, and pre-backend testing capabilities.
User Comments
Simplifies API testing workflows.
Essential for simulating edge cases.
Unlimited requests accelerate development.
Priority support resolves issues quickly.
Integrates seamlessly with existing tools.
Traction
ReqRes (free version) serves ~9.3k developers on Product Hunt; Pro version launched with priority features and enterprise support.
Market Size
The global API management market was valued at $4.5 billion in 2023 (Statista) and projected to reach $13.7 billion by 2030.