> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developers.hellosign.com/docs/guides/signature-types/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.hellosign.com/_mcp/server.

# Signature Types

> Technical documentation for the Dropbox Sign API.

## Docs

- [NOM 151 Overview](https://developers.hellosign.com/docs/guides/signature-types/nom-151-overview.md): Overview of NOM 151 signature type.
- [Implementation](https://developers.hellosign.com/docs/guides/signature-types/implementation.md): Steps to sign with NOM 151 signature type.