Elasticsearch Authentication

Authenticate to an Elasticsearch cluster using any supported authentication realm that is already configured. This skill covers all built-in realms, credential verification, and the full API key lifecycle.

For roles, users, role assignment, and role mappings, see the elasticsearch-authz skill.

For detailed API endpoints, see references/api-reference.md.

Deployment note: Not all realms are available on every deployment type. See Deployment Compatibility for self-managed vs. ECH vs. Serverless details.

Critical principles