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Line KJ-140 Platform 3 · Backend & API Modules

API Fixture Freight: 150 Mock APIs

150 realistic mock APIs with seeded data, pagination, errors and latency — run them all from one container.

381 builders

KT Maintained by Kadri Tamm

  • Last updated October 2026
  • English
  • 25m of walkthroughs
  • 150 files

What you get

5 items in the box

Every bullet below is in the download, working, the moment your payment clears.

  • 150 mock APIs with consistent seeded data
  • Pagination, filtering, errors and latency injection
  • An OpenAPI document for every API
  • One Docker image to run them all
  • Pay any fare from €1 to €100 — each euro unlocks 1.5 mock APIs

What's in the box

6 parts · 150 files · 25m of walkthroughs

25 files with a 3m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 4m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 5m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 6m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 3m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

25 files with a 4m walkthrough video. This part is documented in the architecture guide, with notes on every decision and how to change it for your own project.

The full file tree and the walkthroughs are in your download, available straight after checkout.

6 parts · 150 files

25m total length

You will need

Short list, and deliberately so. If you meet these you can start today.

  • Docker

About this product

Front-end work and integration tests stall when the real API is not ready. Fixture Freight is 150 mock APIs with believable, internally consistent data: shops, bookings, invoices, logistics, ticketing, HR, IoT readings and more, each with pagination, filtering, validation errors and optional latency injection.

Everything runs from a single Docker image with an OpenAPI document per API, so your client generators and contract tests work against it unchanged. Your fare unlocks domains in the listed order.

You choose the fare: anything from €1 to €100, in whole euros. At €100 you get every part, plus all future additions to it.

Frequently asked questions

Still unsure about something? Write to our contact page and a human answers, usually the same working day.

Pick any whole-euro fare from €1 to €100. Each euro unlocks 1.5 mock APIs, and parts unlock in the order listed on this page, so you see exactly what your fare includes before you pay.

No. New mock APIs added to the parts you have unlocked appear behind the same download link at no extra cost.

Checkout is handled on our provider's secure payment page. The moment your payment clears we email your personal access link and access code to the address you used at checkout, and the same link appears in your account library. There is nothing to install and nothing to wait for.

Email within 14 days of your purchase, quote your order number, and we refund the full amount to your original payment method. No form to fill in and no questions about how much of the product you watched.

What builders say

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Your maker

KT

Kadri Tamm

Laravel architect, builds the SaaS and billing lines

  • 1,964 builders aboard
  • 6 products published
  • 4.6 maker rating
  • Laravel
  • PHP
  • Stripe billing
  • Multi-tenancy
  • Webhooks

Kadri has spent eleven years building subscription products in PHP, the last six of them on Laravel, for clients ranging from a two-person bookkeeping start-up to a national ticketing operator. She maintains the Starter Kit and billing lines at Koodijaam and writes every architecture guide herself. Her rule for a kit is simple: if she would not deploy it for a paying client, it does not ship.

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