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Full read-write Claude connector for Proprietary ERP

Let Claude read across modules and update records inside your Proprietary ERP

Stop switching screens and re-keying between Claude and your ERP. Claude pulls live records across inventory, orders, and finance, updates them in place, and waits for your approval before anything is created or sent.

Proprietary ERP is a custom-built or heavily customized enterprise resource planning system that runs a company's core operations: inventory, orders, production, and finance. People want Claude to read across its modules and take action inside them, like updating records and moving work forward.

What is a Proprietary ERP MCP server?

A Proprietary ERP MCP server is a small hosted service that exposes Proprietary ERP'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 Proprietary ERP's current connector do today?

Today, a proprietary ERP usually has no Claude connector at all, since the system is custom and often on-premise or behind a firewall. Even where data can be exported, Claude cannot read live records or write back. The result is manual lookups and re-keying instead of acting where the system of record already lives.

What does full read-write Proprietary ERP access unlock?

Full read-write access lets Claude pull live records across modules and act inside them: update an order, adjust an inventory count, create a purchase order, or change a record's status. The cross-module lookups and data entry that used to mean switching screens and re-keying happen where the work already lives.

  • Update the status or fields on an existing order or work order
  • Adjust an inventory count or stock-location record
  • Create a purchase order or requisition from a draft you approve
  • Look up a record across modules and propose the next action
  • Append a note or update fields on a customer or vendor record
  • Flag records that fall outside a threshold for your review

Can Claude update records in my Proprietary ERP?

Yes. With a purpose-built read-write connector, Claude can update the status or fields on an existing order or work order, adjust an inventory count, and append notes to a customer or vendor record. Updates run through scoped write tools, so Claude only touches the records you intend it to reach.

Can Claude create a purchase order in my Proprietary ERP?

Claude can create a purchase order or requisition from a draft you approve, rather than firing one off on its own. It prepares the record from your inputs and waits for your confirmation, so the creating action stays gated and nothing enters the system of record until you sign off.

Can Claude look up a record across modules in my Proprietary ERP?

Yes. Claude can look up a record across modules, inventory, orders, production, and finance, then propose the next action or flag records that fall outside a threshold for your review. The connector uses a limited service account, so Claude never reads anything that account cannot already reach inside the ERP.

How a Proprietary ERP connector works

We build a small MCP server that connects to your ERP through scoped API or database access, using a service account with the narrowest permissions the work needs. Read tools and write tools are separated, and destructive or outbound actions are gated behind your confirmation. Claude never gets more access than the account allows, and for on-premise systems we use firewall rules and IP allowlisting so the connection stays inside your network boundary.

Frequently asked questions

Can Claude write back to a custom on-premise ERP?
Yes, with a purpose-built connector. We expose scoped write tools that update records through your ERP's API or a controlled database connection. For on-premise systems behind a firewall, we use IP allowlisting and a service account with limited permissions, so the connection stays inside your network and only touches the records you intend.
How do you connect Claude to a proprietary ERP with no public connector?
Because the system is custom, there is no off-the-shelf connector, so we build one. A small MCP server talks to your ERP 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 ERP records?
Write actions are scoped and reversible by design. Read and write tools are separate, and changes that delete data or send anything outbound require your confirmation before they run. The connector uses a limited service account, so Claude can never reach records or actions that account cannot already reach inside the ERP.

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