How it works
Assistant request → MCP tool schema → authorization and validation → approved system → structured result or error → audit log
MCP servers and connectors
Custom MCP servers and connectors for your business tools
CombineApps builds Model Context Protocol servers and custom connectors that let MCP-compatible assistants work with approved business systems and live context instead of relying only on information placed in a prompt.
Best fit
MCP is useful when an assistant needs reusable, controlled access to live tools or data. A normal API integration or fixed automation is often better when one predictable workflow is the only requirement.
Example workflows
Where this capability can help
These are examples, not claimed customer results. The right design depends on your workflow and systems.
Search approved records in a CRM, helpdesk, or internal knowledge source.
Read structured information from spreadsheets, databases, and internal tools.
Prepare a draft action and route it to a person for approval.
Expose a narrow set of internal functions through documented tool schemas.
Give development assistants controlled context from approved engineering systems.
Typical deliverables
- Tool, data, user, and permission inventory
- MCP tool schemas and connector architecture
- Authentication and least-privilege access controls
- Server or connector implementation
- Validation, error handling, evaluation, and logs
- Deployment documentation and an operations plan
Controls designed with the build
- Read-only access where action access is unnecessary
- Explicitly approved tools and operations
- Input validation, timeouts, and bounded results
- Human approval for sensitive actions
- Action and error logs for review
Common questions
Direct answers before discovery
What is an MCP server?
An MCP server presents approved tools or data through the Model Context Protocol so compatible assistants can discover and invoke them through structured schemas.
Does MCP replace the target system's API?
No. The MCP server still relies on an API, database, file, or internal function underneath. It adds a standard assistant-facing interface and a place to enforce tool-level controls.
Can an MCP connector be read-only?
Yes. Read-only access is often the appropriate starting point. Search, draft, update, delete, and financial operations should be separated so each can receive different permissions and approval rules.
Feasibility first
A connector is feasible only when the target system offers a workable access method and the required permissions can be granted safely. Discovery confirms authentication, API limits, hosting, and who may invoke each tool.