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OpenAPI Specification

openapi: 3.2.0
info:
  title: KurrentDB HTTP Admin Gossip API
  version: v26.1
  summary: AtomPub-over-HTTP interface to KurrentDB streams, subscriptions, projections, users and node administration.
  description: KurrentDB (formerly EventStoreDB) exposes a native AtomPub-over-HTTP interface alongside its primary gRPC protocol. This OpenAPI description is an API Evangelist transcription of the provider's published HTTP API Reference at https://docs.kurrent.io/server/v26.1/http-api/api.html — Kurrent does not publish an OpenAPI document of its own. Paths, methods, custom headers, media types and status codes are taken from that reference; nothing has been invented. The base URL is the address of your own KurrentDB node or Kurrent Cloud cluster (the same URL you use for the admin UI), which listens on port 2113 by default.
  contact:
    name: Kurrent
    url: https://www.kurrent.io/
  license:
    name: Kurrent License
    url: https://www.kurrent.io/terms-of-use
  x-apievangelist-provenance:
    generated: '2026-07-19'
    method: generated
    source: https://docs.kurrent.io/server/v26.1/http-api/api.html
    note: Faithful transcription of the provider's published HTTP API reference table. Operation summaries mirror the reference; request/response schemas are intentionally left open where the provider does not publish them.
servers:
- url: https://{host}:{port}
  description: Your KurrentDB node or Kurrent Cloud cluster
  variables:
    host:
      default: localhost
      description: Hostname of the KurrentDB node (the same host you use for the admin UI)
    port:
      default: '2113'
      description: KurrentDB HTTP port
security:
- basicAuth: []
tags:
- name: Gossip
  description: Cluster gossip
paths:
  /gossip:
    get:
      tags:
      - Gossip
      operationId: getGossip
      summary: Get the gossip details of the cluster
      responses:
        '200':
          $ref: '#/components/responses/JsonOk'
        '404':
          $ref: '#/components/responses/NotFound'
    post:
      tags:
      - Gossip
      operationId: updateGossip
      summary: Update the gossip details of the cluster
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
      responses:
        '200':
          $ref: '#/components/responses/JsonOk'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  responses:
    JsonOk:
      description: OK
      content:
        application/json:
          schema:
            type: object
    NotFound:
      description: Not Found — the stream, event, projection, subscription or user does not exist
      content:
        text/plain:
          schema:
            type: string
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: KurrentDB supports HTTP Basic authentication for the HTTP API, with access control lists (ACLs) applied per stream. See https://docs.kurrent.io/server/v26.1/http-api/security.html
externalDocs:
  description: KurrentDB HTTP API documentation
  url: https://docs.kurrent.io/server/v26.1/http-api/introduction.html