MCP servers · accounting
Xero MCP server
Cloud accounting — invoices, contacts, payments, bank reconciliation, reports. Hosted by 0n3: 9 endpoints your AI can call with your own Xero account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.
9 endpoints4 categoriesauth: oauthhosted
What your AI can do with 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 /OrganisationInstall in three steps
- Create a free account at 0n3.app and connect Xero: paste a key or sign in through a door. It lands in your vault, encrypted.
- Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
- Ask your AI: whoami. It answers with your connected services. Then ask it to list invoices in Xero.
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"
Connect Xero to
Claude Code + XeroMCP server + skillClaude (desktop & claude.ai) + XeroconnectorChatGPT + Xeroconnector · GPT actionCodex CLI + XeroMCP serverGemini CLI + XeroMCP serverCursor + XeroMCP serverVS Code (Copilot) + XeroMCP serverWindsurf + XeroMCP server
More accounting MCP servers
Questions
What can an AI do with the Xero MCP server?
9 things: invoices, contacts, payments, more. Every call runs with your own Xero connection and lands on a receipt.
Do I need to run anything on my computer?
No. 0n3 is hosted. Connect Xero once, install 0n3 into your AI with one line, done.
Where does my Xero key go?
Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.