# Kustomer REST API reference

> Every Kustomer REST API, with every operation documented.

Source: https://developer.kustomer.com/api

Base URL: `https://{orgname}.api.kustomerapp.com` (or `https://api.kustomerapp.com` in the US, `https://api.prod2.kustomerapp.com` in the EU and `https://api.prod4.kustomerapp.com` in India).
Auth: `Authorization: Bearer <API key>`. Each operation's Authorization section lists the roles it requires; the key needs any one of them.

- [Core resources](https://developer.kustomer.com/api/core-resources.md): Customers, companies, conversations, messages, notes, drafts, KObjects, Klasses, search, bulk operations and more. (171 operations)
- [Core resources v2](https://developer.kustomer.com/api/core-resources-v2.md): Newer v2 endpoints for core CRM data, starting with conversation times. (1 operations)
- [Queues and routing](https://developer.kustomer.com/api/queues-and-routing.md): Queues, queue rules, routing statuses, team routing settings, work sessions, work items and live metrics. (37 operations)
- [Chat conversations](https://developer.kustomer.com/api/chat.md): Server-side chat sessions, messages and handoff with an API token (v2.1). (10 operations)
- [Knowledge base](https://developer.kustomer.com/api/knowledge-base.md): Knowledge bases, articles, categories, versions and languages, forms, themes, templates, routes and custom domains. (71 operations)
- [Workflows](https://developer.kustomer.com/api/workflows.md): Create and update workflows, manage workflow variables and inspect process errors. (10 operations)
- [Apps platform](https://developer.kustomer.com/api/apps-platform.md): Apps, cards, KViews, inbound email/form/web hooks and outbound webhooks with their transactions. (40 operations)
- [Settings and configurations](https://developer.kustomer.com/api/settings-and-configurations.md): Chat settings, notifications, search filters, shortcuts, snippets, satisfaction surveys, snoozes and user settings. (55 operations)
- [Access management](https://developer.kustomer.com/api/access-management.md): Users, teams, role groups, auth tokens (API keys) and authentication settings. (33 operations)
- [AI and automations](https://developer.kustomer.com/api/ai.md): AI automations, evaluations with test cases and runs, and conversation summaries. (19 operations)