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Xero API

REST + OAuth2 API for Xero accounting — access invoices, contacts, bank transactions, payroll, and financial statements across the popular cloud accounting platform.

Visit Xero APIVerified · March 8, 2026

✓ Our Verdict

Viable option — review the tradeoffs

Use Case

You need to automate invoicing, bank reconciliations, and financial reporting for clients using Xero without manual data entry.

SolutionProgrammatically create/update invoices from e-commerce/CRM, match bank transactions to invoices, pull P&L reports, and manage contacts/payroll via 100+ REST endpoints.

SetupRegister OAuth2 app in Xero Developer Portal, implement tenant-aware auth with scopes like 'accounting.invoices', use official Python/JS SDKs for endpoints.

Reliable for bulk ops (50 records/request, pagination for large sets), real-time sync possible but watch rate limits; robust for core accounting but multi-tenant quirks require careful handling.

Integration depth

Use Case

You want to enrich SaaS analytics/AI products with customer financial data like transactions, payments, and statements.

SolutionSync invoices, payments, expenses, and reports into your data pipeline or LLM for analytics dashboards, AI copilot queries, or custom reporting.

SetupOAuth2 with 'offline_access' for refresh tokens, map Xero objects (Invoice, BankTransaction) to your schema, use if-modified-since for deltas.

Accurate data pulls with where clauses for filtering; expect pagination headaches on high-volume orgs, solid for near-real-time but not instant.

Data quality

Limitation — major

Multi-Tenant Complexity

Every API call requires tenant ID from /Connections endpoint; single-tenant apps waste cycles, multi-tenant needs connection management.

Caution

OAuth2 Tenant Gotcha

Missing tenant_id in requests returns 401s; always call /Connections after token exchange. Rate limits (5 req/sec per tenant) throttle bulk jobs—implement exponential backoff.

Prerequisite

Xero Developer Account + Scopes

Need approved Xero app with precise scopes ('accounting.invoices', 'accounting.transactions'); public app review takes 2-4 weeks for production keys.

OAuth2 libraryHTTP client

Trust Breakdown

75

Trust scoreSolid

AGENT

Autonomous workflow delegation

TRUST

Transparency & verification

INTEROP

Protocol compatibility breadth

SECURITY

Security controls & audit trail

DOCS

Documentation completeness

How these scores are calculated →

What It Actually Does

In Plain English

Xero API lets apps connect to Xero's cloud accounting software to read and manage invoices, contacts, bank transactions, payroll, and financial reports.[5][6]

REST + OAuth2 API for Xero accounting — access invoices, contacts, bank transactions, payroll, and financial statements across the popular cloud accounting platform.

Fit Assessment

Best for

✓accounting-integration
✓data-retrieval
✓financial-records
✓api-integration

75

Xero API

Solid · 75/100

Visit Xero API

Score Breakdown

AGENT

Autonomous workflow delegation

TRUST

Transparency & verification

INTEROP

Protocol compatibility breadth

SECURITY

Security controls & audit trail

DOCS

Documentation completeness

Protocol Support

MCP✓

A2A—

A2H—

REST API✓

Agent-callable✓

Capabilities

Transaction capable✓

ACP support—

Audit trace—

Governance

permission-scoping
oauth2-auth
vulnerability-management
annual-security-assessment
encryption-in-transit
encryption-at-rest

Pricing

Freemium

Free for development and internal use; paid pricing model for app partners (details not specified in documentation)

Workflow Fit

accounting-integrationdata-retrievalfinancial-recordsapi-integration

Related Concepts

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