for JIRA cloud REST API access

you can create API token from your personal Atlassian account page:

• https://id.atlassian.com/manage-profile/security/api-tokens
• you can still use the BASIC auth method (no need for the 3LO OAuth 2.0 methods)

there are 2 types of API tokens:

• Option 1. API token (without limits)
• Option 2. API tokes with scopes (limit the API access - more secure, you can prevent write access)

BUT Based on the options you need to use different URLs to access your JIRA REST API:

• Option 1: use https://mysite.atlassian.net/rest/api/3/search/jql
• Option 2: YOU MUST USE: https://api.atlassian.com/ex/jira/{cloudId}/rest/api/3/search/jql
  • the cloud ID is special identifier of your cloud see documentation:
  • e.g.: https://api.atlassian.com/ex/jira/123..../rest/api/3/search/jql?jql=project+%3D+XXX

Documentation is not very intuitive

• JIRA cloud Basic auth for REST APIs:

  • https://developer.atlassian.com/cloud/jira/platform/basic-auth-for-rest-apis/

• Manage API tokens for your Atlassian account:

  • https://support.atlassian.com/atlassian-account/docs/manage-api-tokens-for-your-atlassian-account/

• Explanation of API token scopes limits (ignore the info about Oauth2.0 and Forge apps):

  • https://developer.atlassian.com/cloud/jira/platform/scopes-for-oauth-2-3LO-and-forge-apps/