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💱

Open Exchange Rates

Finance

Real-time and historical forex exchange rates

Access reliable, accurate foreign exchange rates for 170+ currencies. Used by thousands of apps for currency conversion.

Details

Auth Type
API Key (app_id param)
Rate Limit
1000 req/month (free)
Pricing
Free (1000 req/month); from $12/month
Full Docs
Step 1: Save your provider key

This is NOT your Callio key. Enter the API key from the provider's dashboard (e.g. OpenAI/SendGrid).

API Key (app_id param)

1. Go to https://openexchangerates.org/signup 2. Get your app_id 3. Include it as a query parameter

Get API Credentials

Getting Started

1

Try It Instantly

Click "Try It" above to test the API in the playground

2

Add to Your Agent

Click "Add to Agent" to get your API key and integrate

Common Use Cases

Currency conversion
Pricing localisation
Financial reporting
Historical rate lookup
Multi-currency apps

💻 Code Examples

Get started quickly with these code examples in your favorite language

curl -X GET \
  'https://www.callio.dev/api/proxy/open-exchange-rates/endpoint' \
  -H 'Authorization: Bearer YOUR_CALLIO_KEY' \
  -H 'Content-Type: application/json'

💡 Tip: Replace YOUR_CALLIO_KEY with your actual Callio API key from the dashboard.

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