Knockout API vs Mirage JS
Knockout API
useknockout.comMirage JS
miragejs.comSide by side
| Figure | Knockout API | Mirage JS |
|---|---|---|
| Price from | $0.02/mo | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Plans published | 7 | 0 |
| Spec score · API Mocking Tools | 8.4 (#7) | 7.3 (#18) |
| Integrations | Official client options include Node, React, Python, and CLI, alongside REST and any HTTP client. | Official guides cover Cypress and React Testing Library. |
| Purpose | Knockout provides image and video processing tools through a browser app and API. | Mirage JS is a client-side API mocking library for building, testing, and sharing JavaScript applications without relying on backend services. |
| Support | The site lists community support for Free, email support for Pay-as-you-go, and Slack support for Volume. | The official site links to GitHub, Discord, and Twitter for community access. |
Plans
Knockout API
- FreeFree
- Pay-as-you-go$0.02 a month
- Knockout Plus$10 a month
- FreeFree
- Pay-as-you-go$0.02 a month
- Knockout Plus$10 a month
- VolumePriced on request
In their own words
Knockout API
Knockout API provides image and video processing through a browser app and API. Its image tools cover background removal and replacement, batch processing, masking, smart crop, stickers, outlines, shadows, and inpainting; the API also handles upscaling, portrait restoration, colorization, and object removal. Video background removal runs asynchronously, with job polling for progress. The browser Canvas supports layered designs with text and effects, and users can save canvases and cutouts to a free account. Developers can connect through REST, any HTTP client, or official Node, React, Python, and CLI options. The service says it manages GPU processing, endpoint updates, usage records, credentials, teams, and billing. Its privacy policy says uploaded images are processed in GPU worker memory, not retained after the response, and not used to train models. The Free plan is free, with 30 images per month and 60 requests per minute. Pay-as-you-go is $0.02 a month, with metered usage billed monthly; Plus is $10 a month. Paid tiers have no monthly cap and a 600-request-per-minute limit.