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Xero MCP Integration for Generic MCP Clients

Connect Xero to Generic MCP Clients through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 6 read 1 write Manual OAuth token auth
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Connect Xero to Generic MCP Clients

Connect any stdio-compatible MCP client to local KosmoKrator integration tools.

Register kosmo mcp:serve as the command for a local stdio MCP server. The gateway is local, scoped to this integration, and starts with --write=deny so MCP clients can inspect read-capable tools without receiving write access by default.

Xero MCP Config for Generic MCP Clients

Start with read-only write policy and expand only for trusted projects.

{
  "mcpServers": {
    "kosmokrator-xero": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=xero",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=xero --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Xero instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Xero Tools Visible to MCP clients

MCP clients sees stable MCP tool names generated from the Xero integration catalog.

MCP toolSource functionTypeDescription
integration__xero__xero_create_invoice xero.xero_create_invoice Write Create a new invoice in Xero. Requires a contact_id and at least one line item with description and unit_amount. Returns the created invoice with its ID and number.
integration__xero__xero_get_contact xero.xero_get_contact Read Retrieve a Xero contact by its ID. Returns the contact's ID, name, email, phone, addresses, and status.
integration__xero__xero_get_current_user xero.xero_get_current_user Read Retrieve the currently authenticated Xero user. Returns the user's ID, name, and email. Useful for identifying which Xero organisation or token is in use.
integration__xero__xero_get_invoice xero.xero_get_invoice Read Retrieve a Xero invoice by its ID. Returns the full invoice including line items, contact details, and totals.
integration__xero__xero_list_accounts xero.xero_list_accounts Read List Xero chart of accounts. Returns account codes, names, types, tax types, and statuses.
integration__xero__xero_list_contacts xero.xero_list_contacts Read List Xero contacts with pagination. Returns contact IDs, names, emails, and types. Use page for pagination (1-indexed).
integration__xero__xero_list_invoices xero.xero_list_invoices Read List Xero invoices with pagination and filtering. Returns invoice IDs, numbers, amounts, status, and dates. Use page and pageSize for pagination.

Related Xero Pages

Xero CLIUse direct JSON commands instead of MCP discovery. Xero MCPFull gateway reference and MCP tool names. KosmoKrator for MCP clientsClient-level gateway setup.