MCP servers · Xero · MCP server
Connect Gemini CLI to Xero
One line gives Gemini CLI your Xero account as tools: 9 endpoints, invoices, contacts, payments, called with your own connection. No key in the prompt, a receipt for every call, revoke Gemini CLI's access alone any time.
Three steps
- Create a free 0n3 account and connect Xero. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Gemini CLI. Google's terminal agent. One command at user scope.
- Ask Gemini CLI: whoami. Then: "List invoices in Xero".
Install (user scope)
gemini mcp add --scope user --transport http 0n3 https://0n3.app/mcp -H "Authorization: Bearer <your 0n token>"
The line above carries a placeholder; 0n3.app/install mints a real key named for Gemini CLI and fills it in.
What Gemini CLI can then do in Xero
Invoices · Manage invoices3
List invoices
GET /InvoicesCreate an invoice
POST /InvoicesGet an invoice
GET /Invoices/{InvoiceID}Contacts · Manage accounting contacts2
List contacts
GET /ContactsCreate a contact
POST /ContactsPayments · Record payments2
List payments
GET /PaymentsCreate a payment
PUT /PaymentsMore · Everything else this app exposes.2
List accounts
GET /AccountsGet an organisation
GET /OrganisationXero in other AI clients
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