> For the complete documentation index, see [llms.txt](https://developers.docstudio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.docstudio.com/guides.md).

# Guides

- [Templates and reusable IDs](https://developers.docstudio.com/guides/templates-and-reusable-ids.md): This document explains how to find, reuse, and validate template and API identifiers in DocStudio integrations.
- [Template Structure API](https://developers.docstudio.com/guides/template-structure-api.md): This document contains the template object structure, including the template information block and the XML stored in the data field.
- [XML payloads](https://developers.docstudio.com/guides/xml-payloads.md): This document explains how to build, escape, and validate XML payloads for DocStudio API requests.
- [Envelope Structure](https://developers.docstudio.com/guides/envelope-structure.md): This document contains the envelope XML structure, including the fields you can include in the request body.
- [Envelope fields](https://developers.docstudio.com/guides/envelope-fields.md): This document explains how to configure template fields and send valid field values in DocStudio envelopes.
- [Files and external documents](https://developers.docstudio.com/guides/files-and-external-documents.md): This document explains how to upload files and use them in DocStudio envelopes.
- [Envelope metadata](https://developers.docstudio.com/guides/envelope-metadata.md): This document explains how to add, manage, display, and use envelope metadata.
- [Envelope callbacks](https://developers.docstudio.com/guides/envelope-callbacks.md): This document contains the endpoint reference for creating and managing envelope callbacks.
- [List responses](https://developers.docstudio.com/guides/list-responses.md): This document explains how to paginate, filter, sort, and search list responses in DocStudio API.
- [API versioning](https://developers.docstudio.com/guides/api-versioning.md): This document explains how to use DocStudio API versions safely and maintain compatible integrations.
- [Import Dictionary CSV](https://developers.docstudio.com/guides/import-dictionary-csv.md): This document explains how to import a dictionary CSV file, including the upload step and the import confirmation request.
- [Simple File Send widget](https://developers.docstudio.com/guides/simple-file-send-widget.md): This document explains how to use and embed the Simple File Send Widget.