RelaygridDeveloper API console.
An API console for a payments platform — pick an endpoint, edit the request, send it and inspect the response.
Concept project. Designed and built by Stackovation with sample data to show how we work. Relaygrid is not a real business, and no real orders, bookings or payments are made in the demo.
- Service
- Custom Software
- Design style
- Techy
- Screens in the demo
- 4
- Built in
- 2026
Made for
Fintech, logistics and SaaS teams whose customers connect to them through an API.
The brief we set
Developers judge an API by its first ten minutes. We wanted a console where trying an endpoint takes one click, and errors explain themselves.
Our approach
Endpoints on the left, the request in the middle, the response on the right. The JSON body is validated as you type, and every request lands in a log you can copy as cURL.
Techy style.
On purpose.
A terminal-inspired console with a neon grid. Built for developers who want every detail of a request in one view.
Void
#05070A
Neon
#39FF88
Magenta
#FF2E88
Amber
#FFB020
Try it.
It all works.
- Endpoint list with method badges
- Editable JSON body with live validation
- Simulated responses with status and timing
- Syntax-highlighted response viewer
- Request log of recent calls
- Copy request as cURL
The
screens.
- 01Endpoint list
- 02Request editor
- 03Response viewer
- 04Request log
The
stack.
- Next.js
- React
- TypeScript
- Tailwind CSS
What a real
version adds.
The demo shows the design and the main flow with sample data. For a real business, we build it on a proper backend with logins, an admin panel and the parts below.
- Real API keys for each customer
- Test and live modes
- Usage limits and billing
- Docs generated from your API
- Webhook testing
- Team access with roles
Part of our Custom Software service.