Full read-write Claude connector for On-prem application

Let Claude read and write live records in your on-prem application, inside your firewall

Stop running remote-desktop sessions and re-keying data into a system that has no cloud connector. Claude reads live records, updates fields, and creates entries in plain language, all inside your network boundary, with destructive actions waiting for your approval.

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An on-prem application is a business system a company hosts on its own servers, behind the firewall, rather than in a vendor cloud. People want Claude to read its live records and act inside it: update entries, change statuses, and run the operational tasks a team handles by hand.

What is an On-prem application MCP server?

A On-prem application MCP server is a small hosted service that exposes On-prem application's data and actions to Claude over the Model Context Protocol, so Claude can proprietary and internal systems inside your own account. We build it as a custom connector with separate read and write tools, and destructive actions stay gated behind your approval.

What can On-prem application's current connector do today?

Today, an on-prem application usually has no Claude connector at all, because it sits inside your network with no public endpoint to reach. Even where data can be exported, Claude cannot see live records or write back, and firewall and access constraints keep cloud tools out. The result is manual lookups instead of acting where the system lives.

What does full read-write On-prem application access unlock?

Full read-write on-prem application access lets Claude pull a live record, update a field, change a status, and create an entry once you approve, all inside your network boundary. The lookups and routine data entry that meant remote-desktop sessions and re-keying now happen in plain language where the records already live.

Look up a live record and summarize its current state
Update fields or change the status on an existing entry
Create a new record from a draft you approve
Append a note or log an action against a record
Reconcile or correct values flagged during a review
Flag entries that fall outside a threshold for your attention

Can Claude update records in an on-prem application?

Yes. With a purpose-built connector, Claude can look up a live record, update fields, and change a status on an existing entry through the application's API or a scoped database account. The update flows freely once you point it at the record, and the connector only ever has the permissions of the account you provision.

Can Claude create new entries in our on-prem system?

Claude can create a new record from a draft you approve, then append a note or log an action against it. Read tools and write tools stay separated, so creating an entry is deliberate. Actions that change, remove, or send data run behind a confirmation step before anything is committed inside your system.

Can Claude reach an on-prem app behind our firewall?

Yes. A small MCP server runs inside your network and connects to the application through whatever access it supports: a documented API, an integration endpoint, or a least-privilege database account. The connection is locked to an allowlisted IP, so Claude stays inside your firewall and never gets broader access than the account you grant.

How an On-prem application connector works

We build a small MCP server that runs inside your network and connects to the application through whatever access it supports: a documented API, an integration endpoint, or a scoped, least-privilege database account, never broader than the role you grant. Read tools and write tools are separated, and destructive or outbound actions are gated behind your confirmation. Because the system is firewalled, the connection is locked to an allowlisted IP so it stays inside your network boundary.

Frequently asked questions

Can Claude write to an on-prem application behind our firewall?

Yes, with a purpose-built connector. A small MCP server runs inside your network and exposes scoped write tools that update records through the application's API or a controlled database account. The connection is locked to an allowlisted IP so it stays behind your firewall, and changes that modify or remove data run behind a confirmation step.

How do you connect Claude to an on-prem app with no public connector?

Because the system is self-hosted, there is no off-the-shelf connector, so we build one. The MCP server runs inside your network and talks to the application through whatever access it supports: a documented API, an integration endpoint, or a scoped database connection. Read and write tools are separated, and the connector inherits only the permissions of the account it uses.

Is it safe to give Claude write access to an on-prem system?

It can be, when scoped correctly. The connector uses a least-privilege service or database account, and connections are restricted to an allowlisted IP so access stays inside your firewall. Read and write tools are separated, and actions that change, delete, or send data require your confirmation. Claude never gets broader access than the account you provision for it.

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