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

# Create new Contact through a (Double Opt-In) Flow.

You can now create a new contact and trigger DOI flow to add it to your lists by just calling one endpoint. Simply pass your contact `attributes`, the `list_ids` where the contact has agreed to be present and a valid DOI `templateId` .

* You can determine if your `templateId` is DOI compliant when retrieving it via [Get SMTP Template ](https://developers.sendinblue.com/reference#getsmtptemplate-1)

Note: Also all [API Clients](https://developers.sendinblue.com/docs/api-clients) have been updated with this new endpoint.