# Fixer AI integration on Definable

> Fixer is a currency data API providing real-time and historical exchange rates for 170 world currencies.

## What this connects

Fixer is a currency data API providing real-time and historical exchange rates for 170 world currencies.

Vendor: https://fixer.io/

## Tools available

**3** tools available. First 3:

- `FIXER_GET_HISTORICAL_RATES` — 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.
- `FIXER_GET_LATEST_RATES` — 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.
- `FIXER_GET_SUPPORTED_SYMBOLS` — 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.

## Auth

Auth schemes: `API_KEY`.

## How agents use Fixer

Inside a Definable workflow, Fixer is one of the tools the **Distributor specialist** can call. Example coordination patterns:

- **Researcher → Fixer** — the Researcher (GPT-5.5) pulls context from Fixer (records, threads, documents), synthesises findings, and briefs the rest of the team.
- **Writer → Distributor → Fixer** — the Writer (Claude Opus 4.7) drafts copy in brand voice, the Verifier passes it, then the Distributor writes the result into Fixer (create record, post message, draft email).
- **Designer / Engineer → Distributor → Fixer** — the Designer ships an asset or the Engineer ships a code change, the Distributor delivers it via Fixer (attach file, open PR comment, post status).

The Verifier checks every Fixer call. On rate limit, schema drift, or auth refresh it self-heals and retries — the workflow completes without manual intervention.

## Categories

- developer tools — https://definable.ai/apps/category/developer-tools/

## Related

- HTML page: https://definable.ai/apps/fixer/
- Same category (developer tools): https://definable.ai/apps/category/developer-tools/
- All integrations: https://definable.ai/apps/
- Workflow (multi-agent loop): https://definable.ai/workflow/
- Apps llms.txt index: https://definable.ai/llms-apps.txt