# API integration

{% content-ref url="api-integration/integration-steps" %}
[integration-steps](https://docs.paypangea.com/crypto-payments/api-integration/integration-steps)
{% endcontent-ref %}

{% content-ref url="api-integration/authentication" %}
[authentication](https://docs.paypangea.com/crypto-payments/api-integration/authentication)
{% endcontent-ref %}

{% content-ref url="api-integration/request-payment-based-on-crypto" %}
[request-payment-based-on-crypto](https://docs.paypangea.com/crypto-payments/api-integration/request-payment-based-on-crypto)
{% endcontent-ref %}

{% content-ref url="api-integration/request-payment-based-on-fiat" %}
[request-payment-based-on-fiat](https://docs.paypangea.com/crypto-payments/api-integration/request-payment-based-on-fiat)
{% endcontent-ref %}

{% content-ref url="api-integration/collecting-payments" %}
[collecting-payments](https://docs.paypangea.com/crypto-payments/api-integration/collecting-payments)
{% endcontent-ref %}