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Apps for ChatGPT, Gemini, Copilot, and Claude

Be the first on the
ChatGPT marketplace

We design ChatGPT apps that integrate with your platforms, so your clients and users can interact with your systems using natural language, through assistants like ChatGPT, Gemini, Copilot, and more.

Custom ChatGPT Apps & Connectors Development

What We Build

We build ChatGPT applications that connect AI assistants to your existing business systems. A ChatGPT app is a lightweight, conversational experience inside ChatGPT, letting users trigger your product or workflows through natural language, with interactive UI when needed.

With these integrations, customers, partners, and employees can access your data, tools, and services in a simple chat, without learning new interfaces or switching platforms.

Now that OpenAI has officially launched the ChatGPT apps marketplace and continues to expand it, launching today positions your business to be discovered and used where hundreds of millions of people already work and ask questions.

Custom GPT Apps

Build specialized ChatGPT applications tailored to your business needs and workflows

API & System Integration

Connect AI assistants to your existing APIs, databases, documents, CRM, ERP, and systems

Interactive Components

Create rich, interactive interfaces that render directly within AI assistant conversations

Secure & Scalable

Enterprise-grade security with authentication, authorization, and audit logging built-in

Integrate with AI Assistants

We build apps that integrate with the most popular AI assistants, like ChatGPT, Gemini, Claude, Meta AI, or Copilot

ChatGPT interface showing custom gas station data integration

Featured Case Studies

Explore how we've helped companies transform their operations with AI-powered solutions

Nieves Energía

ChatGPT app

Nieves Energía

Integrating NMove with ChatGPT

Development of an MCP server connecting NMove with ChatGPT, enabling Nieves Energía customers to find service stations through natural language queries.

View Case Study
Moody's

AI Innovation

Moody's

MCP Servers and AR applications

Development of innovative AI products for Moody's, including an AI-powered AR app for Meta Quest and an MCP server connecting their financial data with Claude.

View Case Study

Trusted by Industry Leaders

Real results from companies that trust us with their AI solutions

Moody's logo

Two years building agents, MCP servers and AI innovative solutions

Naiz logo

80% cost reduction in translation hours between Basque and Spanish languages

Infopraca logo

20% improved conversion rate in candidates applying to job offers

ANERIS logo

50.000 marine life images recognised and categorised with AI

We've worked with

Citadel logoCaixaBank logoBoston Consulting Group logoFC Barcelona logoReal Madrid logoFord logoEcler logoMobile World Capital logo

Get in Touch

Ready to start your project? Reach out and let's talk today!

Email Us

Same Day Response

[email protected]

WhatsApp

Instant Chat

+34 604877174

GPTApps

Built by MarsBased, a trusted development agency building digital products since 2014.

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