
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

Mem0
Memori
Agentmemory
Supermemory
Tempreon
cognee
TheSecondBrain.dev
Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client
Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | mockrest.com | chainmemory.ai |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from Poland · 1 - 9 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Mock REST endpoints in seconds. Test without backend delays. Built for developers who need reliable mock data now.
ChainMemory gives your AI agents persistent memory that belongs to YOU — not to a single vendor. Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored...
What each product offers, as listed by its team.


No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using MockRest and ChainMemory. For example, how are they different and which one is better?
When comparing MockRest and ChainMemory, you can also consider the following products.

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.
Compare JSONing API to MockRest or ChainMemory:


Easily format, validate, and beautify JSON data with our free online tool. Includes powerful JSON conversion features for seamless data management
Compare Format JSON Online to MockRest or ChainMemory:

Persistent memory from agent trace, not just conversation
Compare Memori to MockRest or ChainMemory:

JSON Placeholder is a modern platform that provides you online REST API, which you can instantly use whenever you need any fake data.
Compare JSON Placeholder to MockRest or ChainMemory:

Persistent memory for Claude Code, Codex & coding agents
Compare Agentmemory to MockRest or ChainMemory: