# Cosend

> WhatsApp coexistence infrastructure: keep the WhatsApp Business app on your phone and add an API, a shared inbox and automations to the same number.

## Developers

- [Documentation](https://cosend.app/docs): Quickstart first, then every endpoint.
- [How do I give Claude or ChatGPT access to my WhatsApp Business inbox?](https://cosend.app/docs/guides/claude-chatgpt-whatsapp-inbox-mcp): Add Cosend's MCP server to Claude, ChatGPT or Claude Code so an agent can read your inbox and reply in a chat.
- [MCP server](https://cosend.app/mcp): Let your agent read and reply in the inbox.
- [Webhooks](https://cosend.app/webhooks): Message events on your own server.
- [n8n node](https://cosend.app/n8n): Run a workflow when a message arrives.
- [Business API](https://cosend.app/business-api): Meta's Cloud API, one hostname away.