Cursor
GitHub Copilot
Claude Code
Augment Code
Factory
CodeRabbit
Synlets
Devin is an autonomous agent that solves engineering tasks through the use of its own shell, code editor, and web browser.

JSONing API
Format JSON Online
JSON Placeholder
ReqRes
Beeceptor
Mockae
MockAPI
mock rest,rest mock,free json mock,api,mock api,free mock service,mock data

Which is more popular?
Based on our record, Devin seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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Devin
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|---|---|---|
| Website | cognition.com | mockrest.com |
| Platforms | — | |
| Company | — | Startup from Poland · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Devin yet.
Mock REST endpoints in seconds. Test without backend delays. Built for developers who need reliable mock data now.
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
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Overall verdict
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Walkthroughs and reviews on video.
Devin review: is it a better AI coding agent than Cursor?
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Devin and MockRest. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Cognition, "Introducing Devin, the first AI software engineer" (March 12, 2024): the launch post; the 13.86% SWE-bench self-report and unassisted-evaluation details. - Source: dev.to / 3 months ago
Tracking MockRest since Aug 2025.
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Free and open-source mock API for testing and prototyping. Easily create a mock API from JSON data, with the ability to define custom rules for HTTP status codes, headers, and response bodies.
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Your AI pair programmer. With GitHub Copilot, get suggestions for whole lines or entire functions right inside your editor.
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Easily format, validate, and beautify JSON data with our free online tool. Includes powerful JSON conversion features for seamless data management
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Transform hours of debugging into seconds with a single command. Experience coding at thought-speed with Claude's AI that understands your entire codebase—no more context switching, just breakthrough results.
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JSON Placeholder is a modern platform that provides you online REST API, which you can instantly use whenever you need any fake data.
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