ceven

Fixer

Pulls real time and historical exchange rates into your workflows to automate currency conversion, global pricing updates, and international financial reporting.

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Why use Ceven?

  1. AI native Fixer integration

    • Describe the outcome and Ceven picks the right Fixer calls, fills the parameters, and checks the result.
    • Structured, agent friendly tool schemas so each call runs reliably instead of by guesswork.
    • Rich coverage for reading, writing, and querying your Fixer data, across all 3 of its actions.

  2. Managed auth

    • Built in OAuth with automatic token refresh and rotation.
    • One place to manage, scope, and revoke Fixer access.
    • Per user and per environment credentials instead of shared keys.

  3. Agent optimized design

    • Actions are tuned from real success and error rates so reliability climbs over time.
    • Full execution logs so you always know what ran in Fixer, when, and on whose behalf.
    • The agent pauses and asks when Fixer is unclear instead of plowing ahead.

  4. Enterprise grade security

    • Fine grained access so you control which agents and people can reach Fixer.
    • Least privilege by default, read scopes first and only the writes a workflow needs.
    • A full audit trail of every Fixer action to support review and sign off.

Supported tools

Every action Ceven's agents can run on Fixer, and when to use it.

Get latest rates
Use this when you need current forex rates to perform a live currency conversion or update a price list.
Get historical rate
Pull the exchange rate for a specific past date. Use this for auditing old transactions or closing monthly books.
List supported symbols
Retrieve all available currency symbols and names to validate user input or populate a currency dropdown.
Convert currency
Calculate the value of one currency in another using the most recent market data available via Fixer.
Check rate volatility
Compare the latest rate against a historical rate to determine if a price update is necessary.
Validate currency code
Check if a specific three letter currency code is supported by the Fixer API before starting a workflow.
Fetch base currency rates
Pull all available exchange rates relative to a specific base currency for a full market overview.
Get specific pair rate
Pull the exchange rate for a single currency pair to minimize data payload in a high volume workflow.
Audit historical trend
Pull a series of historical rates over a date range to analyze currency trends for budget forecasting.
Refresh price cache
Use this to trigger a pull of latest rates and overwrite stored values in your database or CRM.
Sync currency list
Update your internal list of supported currencies by pulling the latest symbols from Fixer.
Calculate forex gain loss
Compare the rate at transaction time versus the rate at payment time to find the currency variance.
Get Historical Rates
Tool to get historical exchange rate data for a specific date. use when you need past currency rates for all or selected currencies.
Get Latest Exchange Rates
Tool to get real time exchange rate data for all available or specified currencies. use when you need current forex rates before performing currency conversions.
Get Supported Symbols
Tool to retrieve all supported currency symbols and their full names. use when you need to display or validate available currencies before performing conversions.

15 actions · scroll to see them all

Frequently asked questions

Ceven manages your Fixer API key through an encrypted vault. When you connect your account, you provide your API key which we store at rest using industry standard encryption. The agent only retrieves this key at the exact moment it needs to make a request to the Fixer endpoints. This key is never exposed in the clear within your workflow logs or to the LLM. You can rotate your key in the Fixer dashboard at any time and simply update the connection setting in Ceven to resume service without having to rebuild your existing currency workflows.
This depends on your specific Fixer subscription plan. While the API supports 170 currencies, the free tier typically restricts the base currency to EUR. If your workflow requires using USD or GBP as the base currency for all calculations, you must have a paid Fixer plan that supports base currency changes. Ceven will automatically detect if a request fails due to base currency restrictions and will notify you in the workflow logs if you need to upgrade your Fixer plan to support your chosen base currency.
The update frequency is determined by your Fixer plan level. Basic plans may see updates every hour, while professional and enterprise plans offer updates every minute or even in real time. Ceven does not cache rates internally for long periods because we want your workflows to be as accurate as possible. Every time a workflow calls the latest rates action, Ceven hits the Fixer API directly to ensure you are getting the most current data available under your specific plan limits.
Yes, as long as the date exists within the Fixer historical database. You can pull rates for any specific date in the past to reconcile old invoices or analyze historical trends. The agent simply passes the date in the required YYYY MM DD format to the Fixer API. If you are attempting to pull data from a date before Fixer began tracking a specific currency, the API will return an error which Ceven will catch and report as a missing data point for that specific date.
When Fixer returns a rate limit error, Ceven implements an exponential backoff strategy. The agent will pause the workflow and retry the request after a short delay. If the limit is still exceeded after several attempts, the workflow will enter a failed state and send you a notification. To avoid this, we recommend scheduling high volume pricing updates during off peak hours or upgrading your Fixer plan to increase your monthly request quota for better reliability in production environments.
Yes. By using the supported symbols action, Ceven pulls the full list of valid ISO currency codes from Fixer. You can build a workflow that checks a user provided currency code against this list before attempting a conversion. This prevents workflow failures and API errors caused by typos or unsupported currency requests. The agent can also map the short symbol to the full currency name to provide a better user experience in your customer facing applications or internal reports.
Fixer provides high quality data from various commercial sources, but it is intended for informational and operational use. While many companies use it for internal reporting and pricing, you should consult with your accounting department or a certified public accountant to ensure that the specific data source meets the regulatory requirements for your jurisdiction. Ceven simply acts as the transport layer that moves this data from the API into your systems of record like NetSuite or QuickBooks.
Absolutely. You can build a workflow that runs on a schedule to check the latest Fixer rates. If the rate for a specific pair moves by more than a percentage you define, the agent can trigger a secondary action to update your product prices in your store or notify your finance team via Slack. This allows you to maintain a consistent profit margin without manually monitoring the forex market every day, turning a manual monitoring task into a fully automated business process.

Alternatives to Fixer

Other tools that solve a similar problem. Ceven supports these too, so you can switch or run more than one at once.

Open Exchange Rates logoOpen Exchange RatesXE logoXEOANDA logoOANDA

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