Jira REST API v3

The primary interface for programmatically managing Jira Cloud entities like issues, workflows, and user permissions via JSON and OAuth 2.0.

Jira REST API v3 provides a robust toolkit for developers to automate workflows and sync data across the Atlassian ecosystem. It utilizes standard HTTP methods (GET, POST, PUT, DELETE) and requires API tokens or OAuth 2.0 for secure authentication. This version enforces strict ADF (Atlassian Document Format) for rich text fields, replacing the older Wiki markup to ensure consistent rendering across platforms. Whether you are bulk-updating 500 issues or fetching specific metadata from the /rest/api/3/issue/{issueIdOrKey} endpoint, the API delivers precise control over the Jira Cloud environment.

https://developer.atlassian.com/cloud/jira/platform/rest/v3/intro/