
Insomnia REST
Postman
RapidAPI for Mac
Requestly
HTTPie
Thunder Client
API Fortress
Open source API development ecosystem

liteLLM
Portkey
Merlin Unified API
OpenRouter
TrueFoundry AI Gateway
VoidLLM
ZenMux
Enterprise LLM gateway and self-hosted AI platform: Chat, Code, and Agent workspaces on top of centralized access control, budgets, and usage visibility. An alternative to running LiteLLM plus custom auth, UI, and admin tooling.

Which is more popular?
Based on our record, Hoppscotch seems to be more popular. It has been mentioned 102 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | hoppscotch.io | secondstack.ai |
| Pricing | ||
| Platforms | ||
| Company | 2019 | Startup from the United States · 10 - 19 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


An open sourced free, fast and beautiful API request builder.
SecondStack gives an entire organization access to AI without handing its data to third-party clouds. The platform ships three end-user workspaces — Chat for everyday work, Code for engineering teams, and Agent for automation — running on top of an enterprise LLM gateway that connects to the...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of SecondStack yet.
Walkthroughs and reviews on video.
Hoppscotch - A free, fast and beautiful API request builder - Open Source Friday
No SecondStack videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Hoppscotch and SecondStack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Hoppscotch, formerly known as Postwoman, is a lightweight, open-source API development ecosystem that emphasizes speed and simplicity as a decent postman alternative.
Hoppscotch, previously known as Postwoman, is an open-source API request builder. This tool is highly valued by developers for its user-friendliness and versatility for handling various API requests. These include...
You can access Hoppscotch without an account. Hoppscotch has a specialized user interface for Restful, GraphQL, and Web socket connections. Using Hoppscotch’s Environment and Variable features, you can submit requests...
We have no reviews of SecondStack yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Hoppscotch is open-source, runs in the browser, and does everything I used Postman for. Collections, environments, WebSocket testing — all there. - Source: dev.to / 6 months ago
TL;DR: For AI-native test generation from specs, try Kusho AI. For the most complete platform with the newest AI Agent Mode, go Postman. For open-source and Git-native workflows, Bruno or Hoppscotch are your best bets. Enterprise teams... - Source: dev.to / 6 months ago
Enter Hoppscotch, the open-source API development suite that’s rapidly gaining popularity. It’s a powerful, lightweight, and beautifully designed tool that challenges the way we think about API testing and collaboration. - Source: dev.to / 9 months ago
Tracking SecondStack since Jul 2026.
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