JSON Placeholder
JSON Server
mocki Fake JSON API
httpbin(1)
MockRest
Nacapi
Format JSON Online
A hosted REST-API ready to respond to your AJAX requests.

bundle.social
Zernio
Post and schedule on Instagram and X with one social media API. Instagram insights in the dashboard, MCP server for AI agents.

Which is more popular?
Based on our record, ReqRes seems to be more popular. It has been mentioned 21 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
RR
ReqRes
|
|
|
|---|---|---|
| Website | reqres.in | invisibleapi.ai |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Portugal · 20 - 49 employees |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of ReqRes yet.
InvisibleAPI is a unified social publishing and insights API for developers and AI agents. Instead of maintaining separate integrations for every platform, you send one request. InvisibleAPI handles OAuth token lifecycles, media processing, rate limits, and retries. Built by EmbedSocial on 15+...
What each product offers, as listed by its team.

Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing ReqRes and InvisibleAPI.
InvisibleAPI's answer:
InvisibleAPI is built as developer infrastructure rather than a bloated social media management dashboard. Key differentiators include:
InvisibleAPI's answer:
Most social API wrappers merely forward requests and forward provider failures. When third-party platform APIs break or change without notice, downstream products break.
InvisibleAPI acts as true infrastructure. It absorbs platform-specific quirks, rate limits, token lifecycles, and delivery tracking behind a single, consistent API. You get:
InvisibleAPI's answer:
The primary audience is developers and engineering teams building social publishing features directly into their own applications.
InvisibleAPI is built specifically for:
Product teams: SaaS founders and engineering teams shipping in-app social publishing without building custom platform integrations.
AI agent developers: Builders using Claude, Cursor, or autonomous agent frameworks who need an MCP-native tool to publish and read social data.
Agencies: Teams managing multiple client social accounts across isolated multi-tenant organizations with role-based access.
InvisibleAPI's answer:
The team behind invisibleAPI has operated social media infrastructure in production for over 15 years. Over that time, product teams repeatedly asked the same question: "We love what your platform does, but we need the capability inside our own application."
Every team that tried building it internally hit the identical wall: juggling multiple platform OAuth flows, silent token expirations, sudden breaking changes, and conflicting rate limits.
We had already solved these operational problems in production. We created InvisibleAPI to expose that battle-tested plumbing as a clean, unified API so developers and AI agents never have to rebuild it from scratch.
Share your experience with using ReqRes and InvisibleAPI. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Https://reqres.in/ - roughly that much in ads revenue. Would love to add a paid plan for more features, but....time. - Source: Hacker News / almost 2 years ago
Reqres.in - A Free hosted REST-API ready to respond to your AJAX requests. - Source: dev.to / over 2 years ago
As stated earlier we are using the REQ | RES API in the example, you can check it out to see all the methods it provides. Now, go to the core/internet_services/ create a dart file and name it paths.dart, this will contain the baseurl and... - Source: dev.to / over 3 years ago
Tracking InvisibleAPI since Sep 2026.
When comparing ReqRes and InvisibleAPI, you can also consider the following products.

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 ReqRes or InvisibleAPI:

bundle.social is a unified social media API for publishing, scheduling, analytics, comments, and account management across major platforms. Connect unlimited social accounts with no per-account fees and scale based on usage.
Compare bundle.social to ReqRes or InvisibleAPI:

Get a full fake REST API with zero coding in less than 30 seconds. For front-end developers who need a quick back-end for prototyping and mocking
Compare JSON Server to ReqRes or InvisibleAPI:

mocki Fake JSON API is an advanced platform that offers you to create API for personal use or testing purposes.
Compare mocki Fake JSON API to ReqRes or InvisibleAPI:
