Artkai site

All-in-one platform for OTC services

Crypto over-the-counter trading & exchange platform.

Blockchain Solutions
Brand Design
Web Applications


About the business

The Client is a new all-in-one online solution that combines OTC services with crypto trading & exchange.

The project's goal is to deliver legally compliant and bank-approved OTC services to African countries, and connecting five major African fiat currencies.


Project tasks

  • Build an OTC platform, along with connecting it to the white label crypto trading and exchange solutions to cover all the services in one place
  • Create a Visual Identity for a new brand
  • Create a modern website with a painless user experience that unites all solutions under one hood


Project team

Team: 2 UI/UX designers, 2 Front-end engineers, 2 Back-end engineers, Web3 Full-stack Engineer, Solutions Architect, DevOps, 2 QA engineer, Project manager, Business analyst.


months for research and design


months for development and QA

Design and development are done in parallel after the research and discovery phase.


Tech stack



Product development

Research phase & Product discovery

During the Research Phase, we studied the features of OTC services and crypto trading, analyzed features of the industry and variants of arrangement for the platform.

We advised the client on the technical part of the crypto-trading process and offered him options on how the OTC platform could be solved.

We built the platform based on the principles of user-friendly recognizable identity, algorithms of crypto-trading processes and easiness of use.

Platform features

Coinhaven provides easy onboarding and has a set of features that make the platform a competitive product among others. Simplicity and intuitiveness are essential to the world of investment. Here are several features that Coinhaven can offer:


Trading OTC account
The platform supports a broker-dealer network. When the users open a trading account, they get access to cryptocurrency over-the-counter (OTC) trading


Personal analytics
Users get access to a library of modeling tools for trading data analysis. Visualization of data is available with a set of charts. Users can produce ideas and hypotheses for successful trading


Orders management
The users can create orders for exchanging fiat and/or cryptocurrency. The orders are executed, rejected, and closed automatically with the platform algorithms


Secure storage
The users obtain a high level of privacy for trading securities and other data stored with the platform

Visual Identity

We analyzed the market to create an organic but unique design for the Client. The research results influenced the pick of all the visible elements of a brand that identify and distinguish the brand in consumers' minds: colours, typography, and logo.

CoіnHaven. Color scheme.

CoіnHaven. Typography.

Day / Night UI

We developed two different UI kits for users to have the possibility to switch the screen mode as they need. Night mode minimizes eye strain and reduces the blue light emitted by the screen but does not lose its integrity.

CoіnHaven. Day mode.

CoіnHaven. Night mode.


Artkai conducted extensive testing to meet the project’s requirements. We engaged partners from specialized areas. Our goal was to develop a platform allowing users to navigate through the website quickly. We provided easy access to the functionality of Coinhaven.

CoіnHaven. Website.



OTC platform is designed in terms of principles of user-friendly recognizable identity, algorithms of crypto-trading processes, and ease of use.