> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developer.jelliu.co/api-reference/contacts/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developer.jelliu.co/_mcp/server.

# Contacts

> Build on Jelliu's AI voice and omnichannel agents — REST API, webhooks and MCP.


## API Docs

- Contacts [List a campaign's contacts](https://developer.jelliu.co/api-reference/contacts/get-campaigns-by-campaign-id-contacts.md)
- Contacts [Add a contact](https://developer.jelliu.co/api-reference/contacts/post-campaigns-by-campaign-id-contacts.md)
- Contacts [Add contacts in bulk](https://developer.jelliu.co/api-reference/contacts/post-campaigns-by-campaign-id-contacts-bulk.md)
- Contacts [Preview a CSV import](https://developer.jelliu.co/api-reference/contacts/post-campaigns-by-campaign-id-contacts-upload-preview.md)
- Contacts [Import a previewed CSV](https://developer.jelliu.co/api-reference/contacts/post-campaigns-by-campaign-id-contacts-upload-confirm.md)
- Contacts [Download the CSV template](https://developer.jelliu.co/api-reference/contacts/get-campaigns-by-campaign-id-contacts-upload-template.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://developer.jelliu.co/openapi.json)
- [OpenAPI YAML](https://developer.jelliu.co/openapi.yaml)