list_creative_formats

Discover creative formats supported by a sales agent. Returns formats used by active products with references to authoritative creative agents.

For complete API documentation with request parameters, response structure, and testable examples, see the list_creative_formats Task Reference.

Sales Agent Behavior

Sales agents implement list_creative_formats differently from creative agents:

Sales agents (like https://test-agent.adcontextprotocol.org):

• Return only formats used by active products
• Reference creative agents for authoritative format specifications
• Filter results based on what’s actually purchasable

Creative agents (like https://creative.adcontextprotocol.org):

• Return authoritative format definitions they own
• Provide full specifications for building and validating creatives

Response Structure

Sales agent responses include:

{
  "formats": [
    {
      "format_id": {
        "agent_url": "https://creative.adcontextprotocol.org",
        "id": "display_300x250"
      },
      "name": "Display 300x250",
      "type": "display"
    }
  ],
  "creative_agents": [{
    "agent_url": "https://creative.adcontextprotocol.org",
    "agent_name": "AdCP Reference Creative Agent",
    "capabilities": ["validation", "assembly", "preview"]
  }]
}

Key differences from creative agents:

• Formats may reference external creative agents via format_id.agent_url
• creative_agents array provides entry points for full format specs
• Format list is filtered to purchasable inventory

Typical Workflow

1. Call sales agent’s list_creative_formats to see available formats
2. For full specs, query the creative agent at format_id.agent_url
3. Use format specs to build and validate creatives

Related Documentation

• list_creative_formats (Creative Agent) - Full API documentation with examples
• Creative Formats - Understanding format specifications
• Implementing Standard Format Support - For sales agents