> ## Documentation Index
> Fetch the complete documentation index at: https://docs.adcontextprotocol.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Property authorization check

> Quick check if a property identifier is authorized for an agent. Optimized for real-time ad request validation.



## OpenAPI

````yaml https://raw.githubusercontent.com/adcontextprotocol/adcp/v3.0.26/static/openapi/registry.yaml get /api/registry/validate/property-authorization
openapi: 3.1.0
info:
  title: AgenticAdvertising.org Registry API
  description: >-
    REST API for the AgenticAdvertising.org registry. Resolve brands,

    discover properties, look up agents, and validate authorization in the

    AdCP ecosystem.


    Most endpoints are public and require no authentication. Endpoints marked

    with a lock icon accept either an organization API key or a user JWT

    obtained via the OAuth 2.1 flow — see
    [Authentication](https://agenticadvertising.org/docs/registry/index#authentication).


    **Base URL:** `https://agenticadvertising.org`
  version: 1.0.0
  contact:
    name: AgenticAdvertising.org
    url: https://agenticadvertising.org
servers:
  - url: https://agenticadvertising.org
    description: Production
security: []
tags:
  - name: Brand Resolution
    description: Resolve advertiser domains to canonical brand identities.
  - name: Property Resolution
    description: >-
      Resolve publisher domains to their property configurations and authorized
      agents.
  - name: Agent Discovery
    description: >-
      Browse the federated agent network, search agent inventory profiles,
      publisher index, and registry statistics.
  - name: Change Feed
    description: Poll cursor-based registry change events for local sync.
  - name: Lookups & Authorization
    description: >-
      Look up agents by domain or property, and validate ad-serving
      authorization.
  - name: Validation Tools
    description: >-
      Validate publisher adagents.json files and generate compliant
      configurations.
  - name: Search
    description: Cross-entity search across brands, publishers, agents, and properties.
  - name: Agent Probing
    description: >-
      Connect to live agents and inspect their capabilities, formats, and
      inventory.
  - name: Brand Discovery
    description: Discover and crawl brand.json files across domains.
  - name: Agent Compliance
    description: Agent compliance status, storyboard test results, and compliance history.
  - name: Policy Registry
    description: >-
      Browse, resolve, and contribute governance policies for campaign
      compliance.
paths:
  /api/registry/validate/property-authorization:
    get:
      tags:
        - Lookups & Authorization
      summary: Property authorization check
      description: >-
        Quick check if a property identifier is authorized for an agent.
        Optimized for real-time ad request validation.
      operationId: validatePropertyAuthorization
      parameters:
        - schema:
            type: string
          required: true
          name: agent_url
          in: query
        - schema:
            type: string
          required: true
          name: identifier_type
          in: query
        - schema:
            type: string
          required: true
          name: identifier_value
          in: query
      responses:
        '200':
          description: Authorization result
          content:
            application/json:
              schema:
                type: object
                properties:
                  agent_url:
                    type: string
                  identifier_type:
                    type: string
                  identifier_value:
                    type: string
                  authorized:
                    type: boolean
                  checked_at:
                    type: string
                required:
                  - agent_url
                  - identifier_type
                  - identifier_value
                  - authorized
                  - checked_at
                additionalProperties: {}

````