CUSTOM MCP SERVER DEVELOPMENT
Your systems,
readable by AI.
MCP is how AI assistants like Claude and ChatGPT talk to other software. Popular apps ship their own servers. Your internal tools, older systems and custom databases do not. We build custom MCP servers for them, with the permissions and audit trail a business needs.
- Audit free
- First workflow free
- Live in a week
Which jobs for Harbor Foods are overdue, and draft an update to their ops lead.
- get_client("Harbor Foods")
- list_jobs(status="overdue")
- get_contact(role="ops lead")
- create_draft_email(…) → waiting for approval
3 jobs overdue, longest by 6 days. Draft ready for your approval in Gmail.
WHAT YOU ALREADY USE
Claude
ChatGPT
Cursor
n8n
Postgres
MySQL
Slack
01 / WHY CUSTOM
Public servers cover
public apps.
The tools that hold your real advantage, your internal database, your job system, the older tool everyone depends on, will never get an official MCP server.
No server exists
Internal and niche software is invisible to AI assistants until someone builds the bridge.
Too much access
Generic servers often expose everything. Businesses need read, write and approve rules per tool.
No audit trail
If you cannot see what the AI did in your systems, you cannot let it do anything important.
EXAMPLE ENGAGEMENT
A 50-person logistics company
Everyone used Claude daily, but the job system that ran the business was a 12-year-old internal tool. Answers about live jobs still meant opening five screens or asking ops.
- A custom MCP server on the job database: read tools first
- Per-user permissions copied from the existing system
- Write actions (draft emails, status updates) behind approval, all logged
A composite example with details changed. We do not name clients without their permission.
02 / HOW WE BUILD
Small, safe,
then wider.
We start read-only on one system, prove it is useful, then add actions behind approvals.
We sit with the foundersFREE
One working session on how the business actually runs: the systems, the workflows, the people in each step, and the one lever that matters most this quarter.
We audit your stack and your knowledgeFREE
Which tools you run, where data is retyped between them, where know-how lives only in people’s heads, and which work is worth automating at all.
We build one workflow, free, inside a weekFREE
Not a demo. A real automation on your real tools, so you see the output and the time saved before you pay us anything.
We size the next builds on ROI
Hours saved, capacity gained, revenue unlocked. Each next build is priced against that number and agreed in writing before we start.
We stay on as your AI team
We monitor, fix, extend and train. Workflows change as your strategy changes, so we do not hand over one automation and disappear.
03 / WHAT WE DELIVER
Production MCP,
not a demo.
Hosted where you choose, documented, monitored and maintained.
Tool design
The right actions for your workflows, named so models use them correctly.
Permissions per user
The AI acts with the access of the person using it, never more.
Approval gates
Write actions wait for a human yes where it matters.
Audit logging
Every call recorded for review and compliance.
Legacy adapters
Servers on top of databases, files and older software without APIs.
Agent workflows
n8n and custom agents that use the server to run real processes.
04 / THE ROI LENS
Ask your systems
in plain English.
The return comes from people getting answers and actions from internal systems without opening five screens or asking a colleague.
Run your own numbers| Example | Today | With the system |
|---|---|---|
| Lookups across internal systems / day | 40 manual | Asked in chat |
| Time per lookup | 6 min | 20 sec |
| Systems AI can reach | Public apps only | All of them |
| Visibility of AI actions | None | Full log |
Illustrative, not a client result. Your audit replaces these numbers with your own.
05 / WHAT WE WON’T BUILD
Saying no is
part of the job.
Most automation fails because someone automated the wrong thing. These are the builds we turn down.
- Servers with unrestricted write access
- Exposing data across permission boundaries
- Running without logs
- Building what an official server already does
- Shipping without a rollback plan
START HERE
Connect your
hidden systems.
Book the free audit. We pick the internal system your team asks about most and build its first MCP server free.
- A free audit of your systems, workflows and team
- One workflow built free, live inside a week
- A plan sized on ROI, priced before we build anything else
You talk to the people who build it, not an account manager.info@chronexa.io
Rather write it down first?
What is an MCP server?
MCP (Model Context Protocol) is an open standard that lets AI assistants call tools in other software. An MCP server exposes a system’s data and actions, such as look up a client or create a draft invoice, in a way Claude, ChatGPT and other agents can use safely.
Why build a custom MCP server?
Because internal, niche and legacy systems will not get official servers, and because a business needs control over what AI may read, change and approve. A custom server gives you exactly the tools and limits you need.
Is it secure?
We design for least access: per-user permissions, approval gates on actions, full logging, and hosting inside infrastructure you control.
How much does it cost?
There is no single price, because no two companies run the same way. The audit is free and the first workflow is free. After that, every build is priced against the return it produces, agreed in writing before work starts. Most clients start with one high-return workflow and add more once it pays for itself.
How fast do you ship?
The first working automation goes live inside a week, including the infrastructure it runs on. Larger systems are shipped in weekly increments, so you see progress every week rather than at the end.