openapi: 3.2.0
info:
  title: Whisper Consistency API
  summary: Identity and safe egress for AI agents, and the security graph behind it.
  description: Every endpoint described here was exercised live before this document was written.
  version: 1.1.0
  contact:
    name: Whisper Security
    url: https://whisper.online
  license:
    name: Proprietary
    url: https://whisper.online/terms
servers:
- url: https://whisper.online
  description: The main site, verification, and the ledger
tags:
- name: Consistency
paths:
  /consistency:
    get:
      summary: Consistency proof between two checkpoints
      operationId: ledgerConsistency
      security: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
      description: 'Keyless. Proves the ledger is append-only: an earlier tree is a prefix of a later one.'
      tags:
      - Consistency
components:
  securitySchemes:
    whisperApiKey:
      type: apiKey
      in: header
      name: X-API-Key
      description: A whisper_live_... key. Obtainable from an email address alone, with no human step; see /.well-known/agent-onboarding.json.
externalDocs:
  description: The full catalog, written for agents
  url: https://whisper.online/llms-full.txt