Fixer + Xero
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.
Why integrate Fixer and Xero?
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.
Automate & integrate Fixer & Xero
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.
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.
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.
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.
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.
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.
Use case
FX Variance Alerts for Significant Rate Movements
tray.ai monitors Fixer for significant movements in exchange rates relevant to your Xero currencies and triggers alerts to your finance team via email or Slack when rates shift beyond a defined threshold. Teams can then proactively review open foreign currency invoices, revalue balances, or adjust payment timing to manage FX exposure.
Get started with Fixer & Xero integration today
Fixer & Xero Challenges
What challenges are there when working with Fixer & Xero and how will using Tray.ai help?
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 Can Help:
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 Can Help:
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 Can Help:
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.
Challenge
Ensuring Audit Traceability of Applied Exchange Rates
Auditors and finance controllers often require evidence that the exchange rates applied to transactions were sourced from a reliable, external market data provider on the date in question. Without an automated system, that trail is hard to produce and relies on staff remembering where they sourced a rate months earlier.
How Tray.ai Can Help:
tray.ai logs every workflow run with full input and output data, providing a timestamped record of each Fixer API response and the corresponding Xero transaction it was applied to. Finance teams can export these logs to show precisely which rate was used, when it was fetched, and where it was applied.
Challenge
Synchronizing Rate Updates Across Xero and Downstream Reporting Tools
Xero is rarely used in isolation — finance teams often export data to spreadsheet-based reports, BI tools, or ERP systems that also need to reflect consistent exchange rates. Updating Xero alone without passing that rate data to connected tools creates reporting discrepancies across the finance stack.
How Tray.ai Can Help:
Because tray.ai sits at the center of your integration ecosystem, a single workflow can simultaneously push Fixer rate data to Xero and branch out to update connected reporting tools, spreadsheets, or databases in the same automated run — keeping your entire finance data stack in sync from a single source of truth.
Start using our pre-built Fixer & Xero templates today
Start from scratch or use one of our pre-built Fixer & Xero templates to quickly solve your most common use cases.
Fixer & Xero Templates
Find pre-built Fixer & Xero solutions for common use cases
Template
Daily FX Rate Sync: Fixer to Xero Currencies
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.
Steps:
- Trigger fires on a daily schedule at a configured time each morning
- Call Fixer API to retrieve latest rates for all currencies configured in Xero
- Loop through each currency and update the exchange rate in Xero via the Currencies endpoint
Connectors Used: Fixer, Xero
Template
New Xero Invoice Created — Apply Live Fixer Rate
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.
Steps:
- Trigger fires when a new invoice is created in Xero
- Extract the currency code from the new invoice record
- Call Fixer to get the current rate for that currency pair and patch the Xero invoice with the returned rate
Connectors Used: Fixer, Xero
Template
Backdated Bill Entry — Fetch Historical Fixer Rate and Apply to 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.
Steps:
- Trigger fires when a new bill is created in Xero with a date prior to today
- Extract bill date and currency code, then call Fixer historical endpoint for that date and pair
- Update the Xero bill record with the historically sourced exchange rate
Connectors Used: Fixer, Xero
Template
Monthly FX Rate Snapshot — Archive Fixer Rates Referenced in 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.
Steps:
- Trigger fires on the last business day of each calendar month
- Retrieve all active currencies from Xero and fetch end-of-month rates for each from Fixer
- Compile the rate snapshot into a report and deliver it via email or save to a connected storage service
Connectors Used: Fixer, Xero
Template
FX Rate Threshold Alert — Fixer Monitoring with Xero Currency Context
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.
Steps:
- Scheduled trigger polls Fixer every few hours for rates on all Xero-active currencies
- Compare fetched rates against the previous poll's values and evaluate against threshold rules
- If threshold is breached, send an alert notification with currency pair details and rate movement summary
Connectors Used: Fixer, Xero
Template
Multi-Entity Xero FX Rate Push from Fixer
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.
Steps:
- Trigger fires on a scheduled basis or when an intercompany transaction event is detected
- Fetch required currency pair rates from Fixer for all relevant entity base currencies
- Loop through each Xero organization connection and apply the appropriate rate to each entity's currency settings
Connectors Used: Fixer, Xero