This is the reference documentation for the Zendesk Integrations Services (ZIS) APIs. It documents the REST APIs you can use to interact with each ZIS service for building and running an integration with ZIS.

ZIS APIs are available on Suite Growth and above and Support Professional and above. If you're interested in becoming a Zendesk developer partner, you can convert a trial account into a sponsored Zendesk account. See Getting a trial or sponsored account for development.


ZIS APIs use OAuth 2.0 for authenticating requests, unless stated otherwise. Endpoints that support Basic Authentication and API tokens are mentioned in the API reference.

For more information about authentication methods, see Security and authentication in the Ticketing API documentation.

Rate limits

The ZIS Inbound Webhooks API and ZIS Links API are rate limited to 2000 requests per minute. If the rate limit is exceeded, ZIS responds with a HTTP 429 Too Many Requests status code.

Zendesk reserves the right to adjust the rate limit for given endpoints to provide a high quality of service for all clients.

Any API requests that ZIS Actions make to Zendesk API endpoints are subject to your Zendesk plan's rate limits. See Usage limits.