> ## Documentation Index
> Fetch the complete documentation index at: https://docs.commercepay.asia/llms.txt
> Use this file to discover all available pages before exploring further.

# Request Headers

> Required headers for every CommercePay API request.

Every API request must include the following headers.

<ParamField header="Content-Type" type="string" required>
  Always `application/json`.
</ParamField>

<ParamField header="Authorization" type="string" required>
  Bearer token from authentication. Example: `Bearer {access_token}`
</ParamField>

<ParamField header="Abp-TenantId" type="string" required>
  Your Merchant/Tenant ID.
</ParamField>

<ParamField header="cap-signature" type="string" required>
  Signature verifying the request body.
</ParamField>