Fixer.io

developer tools 5 tools available

Fixer.io is a simple and lightweight API for current and historical foreign exchange rates and currency conversion.

About this integration

Connect Fixer.io to Definable to triage issues, review pull requests, monitor builds. Personas call Fixer.io's 5 tools directly from chat or scheduled flows. Wire it into a triage, review, or release-management persona — every action runs scoped, reviewable, and logged.

Connect Fixer.io to Definable and it becomes a set of typed tools your agents plan with — triggered by events, run on schedules, or invoked mid-conversation. Every write is checked by the verifier before it lands.

Auth OAuth2 · 2 clicks

Tools 5 exposed

Plans All, incl. Free

Data Never trained on

Fixer.io · in workflows

What teams actually run.

Three patterns teams run with Fixer.io on day one. Each one is a plain-English prompt — no canvas, no glue code — and you can remix them into anything.

Triage incoming issues

│ Webhook fires on every new issue

│ Persona summarises and labels it

└ Assigns the right engineer

Auto-review PRs

│ Pull the diff

│ Run a code-review persona

└ Post structured feedback as PR comment

Failing-build alerts

│ CI sends a failure event

│ Agent inspects logs and stack trace

└ Drops a debug summary in Slack

5 tools available

The Fixer.io toolbox.

Every Fixer.io capability your agents can call, each with a typed schema the planner reads. The router picks the right tool per step; the verifier checks the result.

Convert Currency

Tool to convert an amount from one currency to another. Use when you need current or historical exchange rates. Specify `date` for historical rates.

Get Currency Fluctuations

Tool to fetch exchange rate fluctuations between two dates. Use when you need day-to-day currency rate changes.

Get Historical Rates

Fetch historical exchange rates for a specific date. Returns end-of-day (EOD) exchange rates for any date back to January 1, 1999. Use this when you need past currency conversion rates or historical financial data.

Get Supported Symbols

Tool to retrieve the list of all available currency symbols and their corresponding names. Use when you need to fetch and display supported currency codes.

Get Time Series

Retrieves daily foreign exchange rates for a date range. Returns a time series of exchange rates for each day between start_date and end_date (inclusive, max 365 days). The rates show how much of each currency equals one unit of the base currency.

See it run

One prompt, start to finish.

A real prompt, the Fixer.io tools it calls, and what comes back. This is the whole interface — describe the outcome, agents handle the rest.

❯

Run a real Fixer.io task end-to-end — plan it, execute across the API, and hand back a verified result.

fixer_io.convert_currency Tool to convert an amount from one currency to another. Use when you need current or histo

fixer_io.get_currency_fluctuations Tool to fetch exchange rate fluctuations between two dates. Use when you need day-to-day c

fixer_io.get_historical_rates Fetch historical exchange rates for a specific date. Returns end-of-day (EOD) exchange rat · verified

done

Done. Fixer.io responded across 3 calls, the verifier signed off, and the result is logged with every payload.

FAQ · Fixer.io

Questions, answered.

What teams ask before connecting Fixer.io.

01 What can I automate with Fixer.io on Definable?

Anything Fixer.io exposes through its API. Common developer tools workflows on Definable include triage issues, review pull requests, monitor builds. Personas can call any of the 5 Fixer.io tools directly, then chain the result into another integration without you writing code.

02 How does Fixer.io authentication work?

Fixer.io uses API_KEY on Definable. You connect once from the integrations page, scoped to the permissions you choose, and from then on any persona that has the integration enabled can act on your behalf. Tokens are encrypted at rest and rotated automatically.

03 Is the Fixer.io integration included in my Definable plan?

Yes — every Definable plan, including Starter, includes access to all 5 Fixer.io tools. You only need a separate Fixer.io subscription if Fixer.io itself charges per seat or per API call.

04 Is using Fixer.io through Definable secure?

Every call from a persona to Fixer.io is logged with the user, persona, prompt, and response. Tokens never leave Definable's secrets vault, scopes are configurable per persona, and you can revoke access at any time from the integration page.

05 How do I get started with Fixer.io on Definable?

Sign up for Definable, open the integrations page, find Fixer.io, and connect via OAuth or API key. You can immediately attach Fixer.io to any persona and start running workflows. The free Starter plan includes 5,000 credits/month.

06 What Fixer.io actions does Definable expose?

Definable exposes all 5 Fixer.io actions as callable tools — including `Convert Currency`, `Get Currency Fluctuations`, `Get Historical Rates`, plus 2 more. Each tool gets a typed parameter schema so personas know exactly how to call it.