> For the complete documentation index, see [llms.txt](https://kreatorverse-2.gitbook.io/kollect-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kreatorverse-2.gitbook.io/kollect-documentation/resources.md).

# Resources

## Support

For **production base URLs**, **credential issuance**, **KYB**, and **operational SLAs**, contact your **Kollect integration or platform team**.

This documentation is derived from the **Kollect backend** source code. Deployed behavior should match the version your team runs; when in doubt, confirm with engineering or release notes.

## Appendix A — Outbound webhooks

| Topic                    | Detail                                                                                                                                                                                                                            |
| ------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Outbound to merchant** | After Kollect updates state, **POST** to your `webhookUrl` (scope `invoice_settlement`) with **`x-kollect-signature`** / **`x-kollect-signature-v2`**. Retried up to 4 times with backoff on failure. **You** verify and process. |

## Appendix B — Email behavior

After successful create-payment, invoice flows may trigger **email** to the payer (e.g. payment link) per the deployed email service. Exact templates and sender configuration are environment-specific.

## Appendix C — Default `interface` value

`POST /sdk/server/create-payment` defaults **`interface`** to **`kollect-server`** when omitted. Merchant webhooks are tied to this integration type in the product — explicitly overriding `interface` to `kollect-app` or `kollect-sdk` disables webhook delivery for that payment.