# Hubzone

> Hubzone is a CRM with marketing, meetings and service tools. Its REST API reads and writes contacts, companies, deals, tickets, products and orders with scoped API keys, logs phone calls, takes custom events, and has an MCP server for AI assistants.

Base URL: https://hubzone.app/api. Authentication: `Authorization: Bearer hzk_...` (a key made under Settings > Developers).

## Docs

- [Getting started](https://developers.hubzone.app/md/getting-started): Three steps to your first request.
- [Authentication](https://developers.hubzone.app/md/authentication): Keys, permissions (scopes) and how to keep a key safe.
- [Rate limits](https://developers.hubzone.app/md/rate-limits): How many calls a key may make, and how to read where you stand.
- [Errors](https://developers.hubzone.app/md/errors): Standard HTTP status codes and a JSON body that says what went wrong.
- [Custom events](https://developers.hubzone.app/md/events): Send things that happen in your own app (a sign-up, a purchase, a login) and see them in Hubzone.
- [MCP server and AI](https://developers.hubzone.app/md/mcp): Connect Claude and other assistants to your records, and feed this documentation to an AI.
- [API reference](https://developers.hubzone.app/md/api-reference): every endpoint with parameters, bodies, responses and examples
- [Changelog](https://developers.hubzone.app/md/changelog)

## Optional

- [All documentation in one file](https://developers.hubzone.app/llms-full.txt)
- [OpenAPI 3.1 description](https://developers.hubzone.app/openapi.json)
- [MCP server](https://hubzone.app/api/mcp): Model Context Protocol endpoint, POST with a Bearer key