We build MCP servers that connect ChatGPT with your APIs, databases, internal platforms, and third-party systems. Our team defines the tools, resources, permissions, and data flows needed for secure, reliable interactions while keeping business logic and sensitive operations under your control.
ChatGPT App Development Company
What is ChatGPT?
ChatGPT app development is the process of designing, building, and integrating applications that use OpenAI’s GPT models to understand user input, generate responses, automate tasks, retrieve information, and support conversational or AI-powered workflows. It can include custom chatbots, virtual assistants, AI copilots, customer support tools, knowledge-base assistants, and GPT-powered features embedded into web, mobile, or enterprise applications.
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Why Businesses Choose ChatGPT Development Services
ChatGPT-powered applications can handle routine questions, guide users through common issues, retrieve relevant information, and support self-service around the clock. This reduces pressure on support teams while helping customers get answers faster.
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Lower Operational Costs
Businesses can automate repetitive conversations and workflow steps that would otherwise require manual effort. ChatGPT development services help reduce the cost of handling high-volume requests across support, sales, operations, and internal service teams.
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24/7 Availability
AI-powered assistants can support customers, employees, and partners outside normal business hours. This is especially valuable for global companies that need consistent service across multiple regions and time zones.
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New In-Chat Customer Experiences
Apps built for ChatGPT can give customers access to business services directly within the ChatGPT interface. Through MCP integrations and interactive UI components, users can search, compare, book, configure, or complete other supported tasks without moving through a traditional application flow.
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Multilingual Communication
ChatGPT-powered applications can support users across multiple languages from a single conversational interface. This can help global organizations improve accessibility and reduce the effort required to maintain separate support experiences for each market.
AI-Based Solutions to Boost Your Business: ChatGPT as a Service
AI technologies allow for solving complex problems, automating business processes, and speeding up decision-making. A wide range of industries has already benefited from artificial intelligence. AI and ChatGPT app development can boost your business, enable problem-solving capabilities, and increase customer satisfaction.
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MCP Server Development
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Interactive UI Component Development
We create interactive components that make ChatGPT apps more useful than text-only experiences. These can include forms, product selectors, comparison interfaces, dashboards, booking flows, tables, cards, and structured results that help users complete tasks directly within the conversation.
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API and Tool Integration
We integrate ChatGPT with the APIs and tools required to perform real business actions. Depending on the use case, your app can search product catalogs, retrieve customer or account data, create records, trigger workflows, check availability, generate reports, or interact with existing enterprise systems.
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Authentication and Access Control
We implement authentication and authorization for ChatGPT apps that work with private or user-specific data. This can include account linking, role-based access, permission checks, secure token handling, and controls that ensure users only access the data and actions they are authorized to use.
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App Testing and Optimization
We test how the app behaves across different prompts, workflows, edge cases, and failure scenarios. Our engineers optimize tool selection, response accuracy, latency, error handling, API reliability, and UI behavior to create a smoother and more predictable ChatGPT app experience.
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ChatGPT Directory Submission Support
We help prepare your app for submission to the ChatGPT app directory, including technical validation, metadata preparation, configuration review, testing, and compliance checks. We also help identify potential issues before submission to reduce unnecessary revisions during the review process.
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Ongoing Maintenance and Expansion
We support ChatGPT apps after launch as APIs, business requirements, and platform capabilities evolve. Our team can add new tools and workflows, update MCP integrations, expand UI components, monitor reliability, improve performance, and continuously extend the app as new use cases emerge.
ChatGPT App Development Services We Offer
Custom ChatGPT Development
We offer custom ChatGPT app development to fit your goals and requirements and meet your customers’ expectations. Our team focuses on your unique project needs.
ChatGPT API Integration
At Devox Software, we are focused on integrating ChatGPT into your websites or mobile apps. Save time and money with human-like chatbots that work 24/7.
ChatGPT Consulting
Boost your business with ChatGPT capabilities and functionality. Our team will analyze your business needs and requirements and offer custom ChatGPT software development solutions.
OpenAI App Development
We build custom applications powered by OpenAI models for customer-facing and internal business use cases. Our team handles solution architecture, model integration, prompt and tool orchestration, RAG pipelines, API connections, security, testing, and deployment. From AI assistants and copilots to workflow automation and knowledge systems, we develop OpenAI applications that integrate with your existing software and support real business processes.
We’ve worked extensively in terms of geography and sector, developing a variety of work — products, services, and experiences — that has taught us that a well-defined visual strategy is key to bring visibility, credibility, and funds to any organisation. Starting in 2018, we decided to plant a tree for each client that we work with.
70
+Successfully completed projects
71
%Devox Software annual growth
100
+Tech specialists on board
82
%Clients with us for more than 2 years
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Our Experts' Insights
Questions You May Have
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What does a ChatGPT app development company do?
A ChatGPT app development company builds software that uses OpenAI’s models to answer questions, automate tasks, or take actions for your users or employees. Typical projects are customer-support assistants, internal knowledge assistants, AI features inside existing products, and apps that run directly inside ChatGPT. The work covers the whole build: architecture, connecting the AI to your data and systems, safety testing, deployment, and ongoing monitoring of quality and cost.
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How long does it take to build a ChatGPT app?
A working proof of concept usually takes 2–4 weeks, and a production-ready application 2–4 months. The proof of concept runs on your real data and use cases, so you can see answer quality before committing to the full build. Timelines depend mostly on how many systems the app connects to and how clean your source data is.
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Can you build an app that runs inside ChatGPT?
Yes. With OpenAI’s Apps SDK, built on the Model Context Protocol (MCP), businesses can build apps that users open and use directly in their ChatGPT conversations. We build the MCP server that connects ChatGPT to your product’s data and actions, design the in-chat interface, handle authentication, and prepare the app for OpenAI’s review and listing. It’s a new channel to reach ChatGPT’s users where they already are.
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Can you add ChatGPT to our existing website, mobile app, or software?
Yes. OpenAI provides official SDKs for Python, JavaScript/TypeScript, .NET, Java, and Go, so we can integrate its models into almost any stack, including web apps, iOS and Android apps, internal tools, and enterprise systems. We also build chat widgets and add assistants to Slack, Microsoft Teams, WhatsApp, and other messaging channels.
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Can you create custom chatbots with ChatGPT?
Yes. We start by defining what the bot should answer, do, and hand off. It’s required to define the scope of the bot’s capabilities, e.g., questions it can answer, tasks it can perform, and interactions it can handle. It’s also necessary to provide training data to the model, which can be done through techniques such as fine-tuning or transfer learning.
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How does ChatGPT handle different languages and dialects in chatbot development?
ChatGPT is trained on a diverse dataset that includes multiple languages and dialects, enabling it to understand and respond in various languages. It can detect the language used in the user’s input and reply in the same language. For dialects and regional variations, ChatGPT’s performance may vary based on the representation of such dialects in its training data.
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What are the primary programming languages and frameworks supported by ChatGPT for integration?
ChatGPT is designed to be highly flexible and can be integrated into various programming environments. The primary languages for integration include Python, JavaScript, and Java, catering to a wide range of development needs. Frameworks like Node.js for JavaScript, Flask and Django for Python, and Spring for Java are commonly used for seamless integration. This flexibility allows developers to integrate ChatGPT into existing projects or start new ones in the environment they are most comfortable with.
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What are the limitations of ChatGPT in app development, and how can they be addressed?
While ChatGPT is a powerful tool, it does have limitations, such as sometimes generating verbose or irrelevant responses, and a lack of understanding of context outside its training data. To address these issues, developers can fine-tune ChatGPT with specific data relevant to their application, and implement fallback mechanisms where human intervention is possible in complex scenarios. Regular updates and monitoring can also help in maintaining the chatbot’s performance.
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Can ChatGPT be used for multilingual chatbot development?
Yes, ChatGPT is capable of understanding and generating text in multiple languages, making it an excellent choice for multilingual chatbot development. This feature allows businesses to cater to a diverse user base, breaking language barriers and expanding their market reach. The ability to train ChatGPT on specific languages and dialects further enhances its effectiveness in providing accurate and culturally relevant responses.
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What's the difference between a custom GPT, an app in ChatGPT, and an OpenAI API integration?
Compare this:
Option What it is Best for Custom GPT A configured version of ChatGPT with your instructions and files, built without code Quick internal tools and simple assistants App in ChatGPT Your product’s functions available inside ChatGPT via the Apps SDK Reaching ChatGPT users and letting them take actions with your service OpenAI API integration OpenAI models built into your own website, app, or internal systems Full control over UX, data, security, and branding Many companies combine them, for example, an API-powered assistant on their website plus an app in ChatGPT.
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Can a ChatGPT app answer questions using our company's data?
Yes. We use retrieval-augmented generation (RAG): your documents, knowledge base, product data, or database records are indexed, and the most relevant pieces are retrieved and given to the model with each question. The assistant answers from your up-to-date information, can cite its sources, and respects user permissions. Your data isn’t used to retrain the model.
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Do we need to fine-tune the model?
Usually not. For most business assistants, RAG plus careful prompt and instruction design gives better, more controllable results than fine-tuning, and your content stays easy to update. We recommend fine-tuning only for narrow cases, such as a strict output format, a very specific writing style, or reducing cost and latency at high volume. Even then, we test whether it actually improves results first.
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Is our data safe? Will OpenAI use it to train its models?
By default, OpenAI doesn’t use data sent through its API to train its models. For stricter needs, options include zero-data-retention agreements (for eligible use cases) and Azure OpenAI, which runs models in the Azure region you choose. We also:
- remove or mask personal data before it reaches the model
- enforce role-based access
- log activity for audits
- keep secrets and credentials out of prompts
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Can a ChatGPT app take actions, not just answer questions?
Yes. With tool calling, the assistant can act in your systems: create a support ticket, check an order status, book an appointment, update a CRM record, or draft a document for approval. We connect it to tools such as Zendesk, HubSpot, Salesforce, and your own APIs. Sensitive actions (refunds, payments, account changes) require confirmation or human approval, and every action is logged.
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