Connectors / Integration
Automate Multi-Currency Accounting with Fixer and Xero
Sync real-time exchange rates from Fixer directly into Xero to stop manual currency conversions and keep your books accurate across every market.
Fixer + Xero integration
Businesses operating across borders need accurate, up-to-date exchange rates to produce trustworthy financial records. Fixer delivers real-time and historical foreign exchange data for over 170 currencies, while Xero powers accounting workflows for small and mid-sized businesses worldwide. Together, they cut out the error-prone process of manually looking up and entering exchange rates into your accounting system.
When your business invoices clients, pays suppliers, or reconciles transactions in multiple currencies, the exchange rate you apply directly impacts your reported revenue, expenses, and profit margins. Manually copying rates from a browser tab into Xero is slow, inconsistent, and exposes your books to costly human error. By integrating Fixer with Xero through tray.ai, you can automatically pull the latest or historically accurate exchange rates at the exact moment invoices are created, bills are recorded, or bank transactions are imported. This keeps you compliant with accounting standards, cuts reconciliation time at month-end, and gives finance teams confidence that every foreign currency figure in Xero reflects the real market rate — not a stale number someone typed in on Monday morning.
Automate & integrate Fixer + Xero
Automating Fixer and Xero business processes or integrating data is made easy with Tray.ai.
Use case
Automatic Exchange Rate Updates for Multi-Currency Invoices
Each time a new invoice is created in Xero for a foreign currency customer, tray.ai triggers a call to Fixer to fetch the current exchange rate and applies it to the invoice before it's sent. Every invoice reflects the precise conversion rate at the time of issuance, protecting your revenue reporting and giving customers a transparent, accurate document.
- Eliminate manual rate lookups that slow down your invoicing process
- Every foreign currency invoice uses the correct rate at the moment of creation
- Fewer disputes with customers caused by inconsistent or outdated exchange rates
Use case
Daily Base Currency Rate Sync into Xero
Schedule a daily workflow in tray.ai that pulls the latest exchange rates for all currencies your business operates in from Fixer and updates the corresponding currency settings in Xero. Finance teams start each working day with rates that reflect overnight market movements, keeping your chart of accounts aligned with current conditions.
- Start every business day with fresh, accurate rates in Xero without manual intervention
- Consistent currency settings across all active Xero currency accounts
- Less month-end reconciliation work by keeping rates continuously current
Use case
Historical Rate Application for Backdated Transactions
When bills, expenses, or journal entries are entered into Xero for past dates, tray.ai queries Fixer's historical exchange rate API to retrieve the rate that was in effect on that specific date and applies it to the transaction. This matters for accurate accrual accounting, audit readiness, and compliance with financial reporting standards that require period-accurate rates.
- Apply period-accurate exchange rates to any backdated transaction automatically
- Support audit readiness with verifiable, historically sourced rate data
- Comply with IFRS and GAAP requirements for foreign currency transaction reporting
Use case
Real-Time Currency Conversion for Supplier Bill Processing
When a supplier bill arrives in a foreign currency and is recorded in Xero, tray.ai automatically fetches the current Fixer rate for that currency pair and logs the base currency equivalent on the bill. Accounts payable teams don't need to manually convert amounts, and the payment liability in your home currency is immediately visible and accurate.
- Faster accounts payable processing without manual currency conversion steps
- Accurate liability tracking in your home currency as soon as bills are recorded
- Better cash flow forecasting with up-to-date converted bill amounts
Use case
Month-End FX Rate Snapshot and Reporting
At the close of each accounting period, tray.ai pulls a full snapshot of exchange rates from Fixer for every currency your business uses and stores or pushes that data alongside your Xero reports. Finance leaders get a documented audit trail of the rates used during the period, which makes board reporting and external audits a lot less painful.
- A documented record of all FX rates applied during each accounting period
- Simpler external audits with a clear, timestamped rate history
- Accurate period-over-period financial comparisons across currencies
Use case
Multi-Entity Currency Consolidation Across Xero Organizations
For businesses with multiple Xero organizations operating in different base currencies, tray.ai orchestrates Fixer rate pulls for each entity and pushes the appropriate intercompany exchange rates into each Xero account. Consolidation gets simpler, and intercompany transactions stay recorded at consistent, market-sourced rates across the group.
- Standardized exchange rates across all Xero entities for accurate group consolidation
- Less manual work managing FX settings across multiple Xero accounts
- Better intercompany reconciliation accuracy with consistent market-rate sourcing
Challenges Tray.ai solves
Common obstacles when integrating Fixer and Xero — and how Tray.ai handles them.
Challenge
Keeping Exchange Rates Consistent Across High Invoice Volumes
When your business generates dozens or hundreds of foreign currency invoices each day, manually ensuring each one uses the correct exchange rate at the time of creation becomes practically impossible. Rates drift throughout the day, and a rate entered at 9am may be significantly different by 3pm, creating inconsistencies across your Xero records.
How Tray.ai helps
tray.ai's event-driven triggers fire the moment a new invoice is created in Xero, immediately calling Fixer for a fresh rate and applying it in real time. Every invoice is stamped with a rate sourced at the exact moment it's generated, regardless of volume or time of day.
Challenge
Managing Fixer API Rate Limits During Bulk Operations
When syncing rates for a large number of currency pairs or processing many Xero transactions at once, workflows can quickly exhaust the Fixer API's rate limits on lower-tier subscription plans, causing failed lookups and incomplete data in Xero.
How Tray.ai helps
tray.ai has built-in rate limiting controls and retry logic, so you can throttle API calls to Fixer appropriately, batch requests where possible, and automatically retry failed calls with backoff — keeping your Xero records complete even when API limits are a constraint.
Challenge
Handling Currency Pairs Not Supported by Your Fixer Plan
Fixer's base currency flexibility depends on the subscription tier. Lower plans may lock the base currency to EUR, requiring additional conversion math to calculate rates against your Xero base currency — a step that's easy to get wrong when done manually.
How Tray.ai helps
tray.ai workflows can include transformation logic that handles cross-rate calculations automatically, converting Fixer's returned rates into the correct base currency equivalent before applying them to Xero — so even teams on entry-level Fixer plans get accurate, properly converted rates in their books.
Daily FX Rate Sync: Fixer to Xero Currencies
Fixer 
Xero A scheduled daily workflow that fetches the latest exchange rates for a configured list of currencies from Fixer and automatically updates the corresponding currency rates in your Xero organization, so your accounting data starts each day with accurate market rates.
New Xero Invoice Created — Apply Live Fixer Rate
Fixer Xero An event-driven workflow that listens for new invoice creation events in Xero, immediately calls Fixer for the current rate of the invoice currency against your base currency, and updates the invoice with the precise exchange rate before it's finalized or sent to the customer.
Backdated Bill Entry — Fetch Historical Fixer Rate and Apply to Xero
Fixer Xero When a bill is entered in Xero with a past date, this workflow automatically calls Fixer's historical rates endpoint for the bill date and currency, then updates the Xero bill with the historically accurate exchange rate. No manual research needed.
Monthly FX Rate Snapshot — Archive Fixer Rates Referenced in Xero
Fixer Xero A month-end workflow that collects all exchange rates from Fixer for every active currency in Xero, compiles them into a structured report, and saves the snapshot to a connected data store or sends it to stakeholders via email — creating a permanent, auditable record of all rates applied during the period.
FX Rate Threshold Alert — Fixer Monitoring with Xero Currency Context
Fixer Xero A monitoring workflow that polls Fixer at regular intervals for exchange rates tied to your Xero currencies and sends an automated alert to the finance team when any rate moves beyond a user-defined threshold, so you can manage FX risk without watching rates manually.
Multi-Entity Xero FX Rate Push from Fixer
Fixer Xero Built for multi-entity businesses, this workflow retrieves the relevant exchange rates from Fixer and distributes them across multiple Xero organizations, so all entities record intercompany transactions and foreign currency balances at consistent, centrally sourced market rates.
How Tray.ai makes this work
Fixer + Xero runs on the full Tray.ai platform
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