# llms.txt ## Table of contents - [Authentication with API key](https://docs.kycaid.com/api/authentication-wtih-api-key.md) - [Getting your API key](https://docs.kycaid.com/api/getting-your-api-key.md) - [Try Kycaid API with Postman](https://docs.kycaid.com/api/try-kycaid-api-with-postman.md) - [Transaction screening completed](https://docs.kycaid.com/callbacks/transaction-screening-completed.md) - [Decline reasons](https://docs.kycaid.com/decline-reasons.md) - [API integration](https://docs.kycaid.com/guides/api-integration.md) - [Working with the documentation](https://docs.kycaid.com/index.html.md) - [Callback integrity verification](https://docs.kycaid.com/callbacks/callback-integrity-verification.md) - [Database screening](https://docs.kycaid.com/callbacks/database-screening.md) - [Document expired](https://docs.kycaid.com/callbacks/document-expired.md) - [Service result](https://docs.kycaid.com/callbacks/service-result.md) - [Signed documents](https://docs.kycaid.com/callbacks/signed-documents.md) - [Completed Diia authorisation](https://docs.kycaid.com/callbacks/ua-diia-auth-completed.md) - [Set up a custom domain name](https://docs.kycaid.com/guides/set-up-a-custom-domain-name.md) - [FAQ](https://docs.kycaid.com/guides/faq.md) - [Form integration](https://docs.kycaid.com/guides/form-integration.md) - [Test documents](https://docs.kycaid.com/guides/test-documents.md) - [Overview](https://docs.kycaid.com/knowledge-base.md) - [Overview](https://docs.kycaid.com/non-doc.md) - [Form URL expired](https://docs.kycaid.com/callbacks/form-url-expired.md) - [Verification completed](https://docs.kycaid.com/callbacks/verification-completed.md) - [Verification status changed](https://docs.kycaid.com/callbacks/verification-status-changed.md) - [Overview](https://docs.kycaid.com/objects.md) - [Overview](https://docs.kycaid.com/risks-check.md) - [Overview](https://docs.kycaid.com/build/knowledge-base.md)