> For the complete documentation index, see [llms.txt](https://documents.blocksurvey.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documents.blocksurvey.io/audience/contact-list-metadata.md).
# Contact List Metadata
Before creating a contact in BlockSurvey, you must locate the **Team ID**, **List ID**, **List Public Key**, and **List Private Key**. These identifiers are essential for managing contacts via BlockSurvey’s APIs.
Steps to locate the metadata:
1. Log in to **BlockSurvey** and navigate to your **Teamspace**.
2. Go to the **Audience** menu.
3. Click **Create Audience List**, enter a name, and click **Create**.
4. Once the list is created, click **Create Contact** to manually add contacts.
5. Click on **Dev Console** to open a popup displaying the metadata needed to manage your contacts via the API.
Metadata Information:
* **Team ID** – A Unique identifier for your team.
* **List ID** – Identifier for the selected contact list.
* **List Public Key** – Used for encrypting data when adding contacts.
* **List Private Key** – Used for decrypting data when required.
Once you have these details, you can proceed with the API integration to manage your contacts efficiently.
