Xero

Xero

Access the Xero API with managed OAuth authentication. Manage contacts, invoices, payments, bank transactions, and run financial reports.

Quick Start

# List contacts
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/xero/api.xro/2.0/Contacts')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Base URL

https://api.maton.ai/xero/{native-api-path}

Maton proxies requests to api.xero.com and automatically injects your OAuth token and Xero-Tenant-Id header.

Authentication

All requests require the Maton API key in the Authorization header:

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

1. Sign in or create an account at maton.ai
2. Go to maton.ai/settings
3. Copy your API key

Connection Management

Manage your Xero OAuth connections at https://api.maton.ai.

List Connections

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections?app=xero&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Connection

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'xero'}).encode()
req = urllib.request.Request('https://api.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Get Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "connection": {
    "connection_id": "{connection_id}",
    "status": "ACTIVE",
    "creation_time": "2025-12-08T07:20:53.488460Z",
    "last_updated_time": "2026-01-31T20:03:32.593153Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "xero",
    "metadata": {}
  }
}

Open the returned url in a browser to complete OAuth authorization.

Delete Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Specifying Connection

If you have multiple Xero connections, specify which one to use with the Maton-Connection header:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/xero/api.xro/2.0/Contacts')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Maton-Connection', '{connection_id}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If you have multiple connections, always include this header to ensure requests go to the intended account.

Security & Permissions

• Access is scoped to contacts, invoices, payments, accounts, and run financial reports within the connected Xero account.
• All write operations require explicit user approval. Before executing any create, update, or delete call, confirm the target resource and intended effect with the user.

API Reference

Contacts

List Contacts

GET /xero/api.xro/2.0/Contacts

Get Contact

GET /xero/api.xro/2.0/Contacts/{contactId}

Create Contact

POST /xero/api.xro/2.0/Contacts
Content-Type: application/json

{
  "Contacts": [{
    "Name": "John Doe",
    "EmailAddress": "john@example.com",
    "Phones": [{"PhoneType": "DEFAULT", "PhoneNumber": "555-1234"}]
  }]
}

Invoices

List Invoices

GET /xero/api.xro/2.0/Invoices

Create Invoice

POST /xero/api.xro/2.0/Invoices
Content-Type: application/json

{
  "Invoices": [{
    "Type": "ACCREC",
    "Contact": {"ContactID": "xxx"},
    "LineItems": [{
      "Description": "Service",
      "Quantity": 1,
      "UnitAmount": 100.00,
      "AccountCode": "200"
    }]
  }]
}

Accounts

List Accounts

GET /xero/api.xro/2.0/Accounts

Payments

List Payments

GET /xero/api.xro/2.0/Payments

Bank Transactions

List Bank Transactions

GET /xero/api.xro/2.0/BankTransactions

Reports

Profit and Loss

GET /xero/api.xro/2.0/Reports/ProfitAndLoss?fromDate=2024-01-01&toDate=2024-12-31

Balance Sheet

GET /xero/api.xro/2.0/Reports/BalanceSheet?date=2024-12-31

Trial Balance

GET /xero/api.xro/2.0/Reports/TrialBalance?date=2024-12-31

Organisation

GET /xero/api.xro/2.0/Organisation

Invoice Types

• ACCREC - Accounts Receivable (sales invoice)
• ACCPAY - Accounts Payable (bill)

Code Examples

JavaScript

const response = await fetch(
  'https://api.maton.ai/xero/api.xro/2.0/Contacts',
  {
    headers: {
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    }
  }
);

Python

import os
import requests

response = requests.get(
    'https://api.maton.ai/xero/api.xro/2.0/Contacts',
    headers={'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'}
)

Notes

• Xero-Tenant-Id header is automatically injected
• Dates are in YYYY-MM-DD format
• Multiple records can be created in a single request using arrays
• Use where query parameter for filtering
• IMPORTANT: When using curl commands, use curl -g when URLs contain brackets (fields[], sort[], records[]) to disable glob parsing
• IMPORTANT: When piping curl output to jq or other commands, environment variables like $MATON_API_KEY may not expand correctly in some shell environments. You may get "Invalid API key" errors when piping.

Error Handling

Troubleshooting: API Key Issues

1. Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

2. Verify the API key is valid by listing connections:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Troubleshooting: Invalid App Name

1. Ensure your URL path starts with xero. For example:

• Correct: https://api.maton.ai/xero/api.xro/2.0/Contacts
• Incorrect: https://api.maton.ai/api.xro/2.0/Contacts

Resources

• Xero API Overview
• Contacts
• Invoices
• Accounts
• Payments
• Reports
• Maton Community
• Maton Support