Xero Server

Model Context Protocol (MCP) server for the Xero Accounting API. Enables Claude and other MCP-compatible clients to manage Xero contacts, invoices, payments, accounts, and reports.

Features

• Contacts, invoices, payments, chart of accounts, and financial reports over stdio, HTTP, or Cloudflare Workers transports
• Interactive invoice card (MCP Apps, SEP-1865): xero_invoices_get renders as a rich, read-only card in MCP Apps hosts — neutral by default, brandable via window.__BRAND__ injection or MCP_BRAND_* env vars
• Gateway mode for per-request, multi-tenant credentials

One-Click Deployment

Deploy to DO

Deploy to Cloudflare Workers

Note on registry auth: This server depends only on public npm packages, so the Cloudflare and DigitalOcean cloud builders install its dependencies anonymously — no token is required for one-click deploy. (If a future release adds a private @wyre-technology/* dependency, you would supply a GitHub PAT with read:packages as a build variable — NODE_AUTH_TOKEN for Cloudflare Workers, a build-time GITHUB_TOKEN secret for DigitalOcean.)

Installing the published package: The released package is published to the GitHub Packages npm registry, which requires authentication on every install (even for public packages). To install it, authenticate npm to npm.pkg.github.com with a GitHub PAT that has read:packages:

export NODE_AUTH_TOKEN=$(gh auth token)
npm install @wyre-technology/xero-mcp

Quick Start

Prerequisites

• Node.js >= 20
• Xero OAuth2 app credentials (requires a Xero developer account)

Install and Build

npm install
npm run build

Run (stdio mode)

XERO_ACCESS_TOKEN=your-access-token XERO_TENANT_ID=your-tenant-id npm start

Run (HTTP mode)

MCP_TRANSPORT=http XERO_ACCESS_TOKEN=your-access-token XERO_TENANT_ID=your-tenant-id npm start

The server listens on http://0.0.0.0:8080/mcp by default.

Docker

docker build -t xero-mcp .
docker run -p 8080:8080 \
  -e MCP_TRANSPORT=http \
  -e XERO_ACCESS_TOKEN=your-access-token \
  -e XERO_TENANT_ID=your-tenant-id \
  xero-mcp

Environment Variables

Variable	Required	Default	Description
XERO_ACCESS_TOKEN	Yes (env mode)	—	Xero OAuth2 access token
XERO_TENANT_ID	Yes (env mode)	—	Xero tenant ID (organisation)
MCP_TRANSPORT	No	stdio	Transport type: stdio or http
MCP_HTTP_PORT	No	8080	HTTP server port
MCP_HTTP_HOST	No	0.0.0.0	HTTP server bind address
AUTH_MODE	No	env	Auth mode: env or gateway

Gateway Mode

When AUTH_MODE=gateway, credentials are passed per-request via HTTP headers instead of environment variables:

• X-Xero-Access-Token — OAuth2 access token
• X-Xero-Tenant-Id — Xero tenant ID

This allows a gateway/proxy to manage multi-tenant credentials.

Interactive Invoice Card (MCP Apps)

xero_invoices_get renders as an interactive card in MCP Apps hosts (Claude Desktop/web) showing status, contact, dates, amounts, and line items; plain-JSON behavior is unchanged in other hosts. The card is read-only — invoices are financial records, so no write actions are exposed from it. It is neutral by default and brandable via window.__BRAND__ injection or MCP_BRAND_* env vars (MCP_BRAND_NAME, MCP_BRAND_LOGO_URL, MCP_BRAND_PRIMARY_COLOR, MCP_BRAND_ACCENT_COLOR, MCP_BRAND_BG, MCP_BRAND_TEXT) — no rebuild needed.

Available Tools

Tools are organized into domains. Use xero_navigate to select a domain, then use the domain-specific tools.

Navigation

• xero_navigate — Select a domain (contacts, invoices, payments, accounts, reports)
• xero_back — Return to domain selection

Contacts

• xero_contacts_list — List contacts with pagination and optional filtering
• xero_contacts_get — Get detailed contact information by ID
• xero_contacts_create — Create a new contact (customer or supplier)
• xero_contacts_search — Search contacts by name

Invoices

• xero_invoices_list — List invoices with optional status and type filters
• xero_invoices_get — Get detailed invoice information by ID
• xero_invoices_create — Create a new invoice (sales or bill)
• xero_invoices_update_status — Update invoice status (submit, authorise, void)

Payments

• xero_payments_list — List payments with optional status filter
• xero_payments_get — Get detailed payment information by ID
• xero_payments_create — Record a payment against an invoice

Accounts

• xero_accounts_list — List chart of accounts with optional type/class filter
• xero_accounts_get — Get detailed account information by ID

Reports

• xero_reports_profit_and_loss — Profit and Loss (income statement) for a date range
• xero_reports_balance_sheet — Balance Sheet as of a specific date
• xero_reports_aged_receivables — Aged Receivables by contact
• xero_reports_aged_payables — Aged Payables by contact

License

Apache-2.0