# Monarch API Calls

{% content-ref url="monarch-api-calls/creating-an-invoice" %}
[creating-an-invoice](https://wldocs.monarchpay.com/monarch-api-calls/creating-an-invoice)
{% endcontent-ref %}

{% content-ref url="monarch-api-calls/generating-payment-data" %}
[generating-payment-data](https://wldocs.monarchpay.com/monarch-api-calls/generating-payment-data)
{% endcontent-ref %}

{% content-ref url="monarch-api-calls/check-allowance" %}
[check-allowance](https://wldocs.monarchpay.com/monarch-api-calls/check-allowance)
{% endcontent-ref %}

{% content-ref url="monarch-api-calls/generate-approve-transaction" %}
[generate-approve-transaction](https://wldocs.monarchpay.com/monarch-api-calls/generate-approve-transaction)
{% endcontent-ref %}