ChatGPT App Development
Turn your existing service into a ChatGPT app.
Obseum helps organisations connect their existing platforms, services and data to ChatGPT, creating a direct new way for people to discover information and complete useful tasks.
Existing service
Platform, data or API
MCP connection
Tools and authentication
ChatGPT app
Useful user actions
Authentication, testing and review requirements are considered as part of the complete route to submission.
What a ChatGPT app can do
Make your service accessible through conversation.
A ChatGPT app can allow users to search information, retrieve relevant results and interact with an existing digital service without beginning from a traditional website journey. The right use case depends on what your organisation already provides and what users need to accomplish.
- Search a live catalogue, directory or database.
- Find products, roles, properties, appointments or services.
- Retrieve personalised or account-specific information securely.
- Check availability, request information or begin a transaction.
- Explain results using information supplied by the connected service.
What Obseum delivers
Support from feasibility to submission.
Use-case and technical feasibility assessment
Tool and user-journey design
MCP server development and integration
Connection to existing APIs, platforms and data
Authentication and account linking where required
Security and privacy considerations
Testing and user-journey refinement
Submission materials and publishing support
Review feedback assessment and remediation support
Obseum can manage the technical build and submission process, but publication remains subject to OpenAI's applicable requirements and review. Approval cannot be guaranteed.
How the project works
A focused route from assessment to submission.
- 01
Assess
We establish what your service provides, who will use it and whether a ChatGPT app offers a useful and technically viable experience.
- 02
Design
We define the actions, information, permissions and user journeys the app needs.
- 03
Build and connect
We develop the MCP integration and connect it to the appropriate systems, APIs and authentication flow.
- 04
Test
We test tool behaviour, error states, security assumptions and the installation journey.
- 05
Prepare and submit
We assemble the required materials, support submission and respond to review feedback within the agreed scope.
Relevant experience
Obseum brings hands-on experience with the technical and submission requirements involved in bringing a service into ChatGPT. This includes MCP tools, OAuth and authentication flows, testing, domain verification, submission requirements and review remediation.
Specific previous businesses and projects are not identified publicly. More context can be discussed where appropriate during an initial conversation.
Frequently asked questions
Questions before starting.
Does my platform need an API?
An existing API is helpful, but its suitability depends on the actions and information the app needs. We assess the available integration options before recommending a build.
Will users need to sign in?
That depends on the service. Public information may not require an account, while personalised data or account actions will normally require a secure authentication flow.
Can you guarantee publication?
No. We can build and prepare the integration professionally and support review feedback, but publication decisions remain subject to OpenAI's applicable requirements and review.
How long does development take?
Timescales depend on the use case, the condition of the existing platform, API readiness, authentication requirements and the number of actions the app must support. A proposed scope and schedule follow the initial assessment.
How much does it cost?
Pricing is based on the technical scope, existing infrastructure and level of submission support required. We provide a clear proposal after assessing the opportunity.
Will the system use our existing infrastructure?
Where practical, yes. Obseum favours client-owned accounts and infrastructure and avoids introducing unnecessary platforms or data duplication.
ChatGPT App Development
Could your service work inside ChatGPT?
Tell us what your platform provides, who uses it and what you would like people to accomplish. We will help assess whether a ChatGPT app is commercially and technically worthwhile.