Apache Iceberg · Authentication Profile

Apache Iceberg Authentication

Authentication

Apache Iceberg secures its APIs with http and oauth2 across 2 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the clientCredentials flow(s).

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Methods: http, oauth2 Schemes: 2 OAuth flows: clientCredentials API key in:

Security Schemes

OAuth2 oauth2
· flows: clientCredentials
BearerAuth http
scheme: bearer

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/apache-iceberg-rest-catalog-open-api.yaml
summary:
  types:
  - http
  - oauth2
  oauth2_flows:
  - clientCredentials
schemes:
- name: OAuth2
  type: oauth2
  flows:
  - flow: clientCredentials
    tokenUrl: /v1/oauth/tokens
    scopes: 1
  description: |-
    This scheme is used for OAuth2 authorization.

    For unauthorized requests, services should return an appropriate 401 or 403 response. Implementations must not return altered success (200) responses when a request is unauthenticated or unauthorized.
    If a separate authorization server is used, substitute the tokenUrl with the full token path of the external authorization server, and use the resulting
  sources:
  - openapi/apache-iceberg-rest-catalog-open-api.yaml
- name: BearerAuth
  type: http
  scheme: bearer
  sources:
  - openapi/apache-iceberg-rest-catalog-open-api.yaml