> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://developers.hellosign.com/docs/sdks/open-api/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.hellosign.com/_mcp/server. # OpenAPI > Technical documentation for the Dropbox Sign API. ## Docs - [Interacting with Files](https://developers.hellosign.com/docs/sdks/open-api/interacting-with-files.md): This page explains how to interact with files using the Dropbox Sign API. Click here to learn about uploading and downloading files using our new SDKs. - [Form Fields per Document](https://developers.hellosign.com/docs/sdks/open-api/form-fields-per-document.md): Use form fields per document to place fields programmatically using the Dropbox Sign API. Click here to learn about the data structure used to place fields.