
MockAPI
WireMock
Mockoon
Beeceptor
Apidog
Smock-it
MockServer.in
Using Mocki you can create, run and deploy mock services without hassle. Use your mock services to run tests independent of external services, design APIs and remove backend dependencies for your frontend team.

Vendr
Spendflo
Zylo
Sastrify
Cledara
Productiv
BetterCloud
StackSwap maps GTM waste and keep/replace/remove calls. Scan in ~60s, no login. Preview free; unlock the full report when you are ready.

Which is more popular?
Based on our record, Mocki seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | mocki.io | stackswap.ai |
| Pricing | ||
| Platforms | — | |
| Company | 2020 | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Mocki yet.
What StackSwap does StackSwap is a free GTM stack audit that surfaces tool overlap, redundancy, and waste in B2B sales tech stacks. Built for founders, RevOps leads, and sales operators who need to cut SaaS spend without losing capability. How it works Drop in your current GTM stack (CRM, sales...
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.


No analysis of Mocki yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Mocki and StackSwap.
StackSwap's answer:
Most SaaS spend tools — Vendr, Zylo, Productiv, BetterCloud — require integrations with billing, SSO, or HRIS before they tell you anything. They're heavyweight onboarded platforms. StackSwap is the opposite: drop in your tool list, get a structured audit in ~60 seconds, no integration. Overlap surfaced by category, with keep / replace / remove calls. It's the diagnostic step before the platform commitment, not a replacement for it.
StackSwap's answer:
Two reasons:
Speed. SaaS Management Platforms take 2-6 weeks to onboard and another 30-60 days to surface useful insights. StackSwap takes 60 seconds. Different product class.
Cost. SMP contracts start around $20k/yr. The free Stackscan covers most of what a founder or RevOps lead needs to start the consolidation conversation.
Honest take: if you're already running an SMP and getting value, keep it. StackSwap is the faster diagnostic, not the replacement. If you're shopping the SMP category, run StackSwap first to see what you actually need before sitting through five demos.
StackSwap's answer:
B2B SaaS founders, RevOps leads, and Heads of Sales / Marketing / Revenue at companies in the 10-200 employee range — typically post-seed, pre-Series-B — where the GTM stack has grown organically and nobody owns the audit. Common trigger: a board meeting where someone asks "are we paying for tools we don't use?"
Also: buyers evaluating the SaaS spend management category who want a directional read before sitting through enterprise sales cycles.
StackSwap's answer:
I spent 10 years in B2B SaaS sales — BDR through Head of Revenue — selling into hundreds of mid-market and enterprise teams. I watched companies pay six figures a year for two competing data enrichment tools because nobody owned the audit and nobody wanted to fight the renewal motion.
StackSwap is the tool I would've hated to face as a vendor on the renewal call: free, fast, takes the buyer's side, names overlap by name. The category I sold in for a decade gets auditable.
StackSwap's answer:
Next.js 14 (App Router) on Vercel, TypeScript, Supabase (Postgres + Auth + Storage), Stripe for billing, Anthropic's Claude API for LLM-assisted analysis, Sentry for observability.
Built deliberately on a thin stack — the irony of running a tool-overlap audit on 30 SaaS subscriptions wasn't lost on me.
Share your experience with using Mocki and StackSwap. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Mocki is an online tool for creating and hosting mock APIs. It offers easy setup for returning specific responses and supports importing/exporting mock configurations and generating random data. As a cloud-based solution, Mocki... - Source: dev.to / almost 2 years ago
Mocki is an online tool for creating and hosting mock APIs. It allows you to set up a mock version of your API and configure it to return specific responses to incoming requests. mocki.io is relatively easy to use and has a wide range of... - Source: dev.to / almost 4 years ago
Mocki - A tool that lets you create mock GraphQL and REST APIs synced to a GitHub repository. Simple REST APIs are free to create and use without signup. - Source: dev.to / about 5 years ago
Tracking StackSwap since May 2026.
When comparing Mocki and StackSwap, you can also consider the following products.

MockAPI lets users mock up APIs, generate custom data, and perform operations on it using RESTful interface.
Compare MockAPI to Mocki or StackSwap:

Vendor Management Services for high-growth companies. Renewal Management, Price Benchmarking, Contract Logistics
Compare Vendr to Mocki or StackSwap:

WireMock - a web service test double for all occasions.
Compare WireMock to Mocki or StackSwap:


Mockoon is the easiest and quickest way to design and run mock REST APIs. No remote deployment, no account required, free and open-source.
Compare Mockoon to Mocki or StackSwap:

Zylo helps organizations optimize their SaaS investments by providing insights around Spend, Utilization, and User Feedback.
Compare Zylo to Mocki or StackSwap: