create_ad_creative · Meta Marketing API MCP Server MCP

WHAT IT DOES

What create_ad_creative does on Meta Marketing API MCP Server

AI agents use create_ad_creative to create or update resources in Meta Marketing API MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Meta Marketing API MCP Server environment.

WHY IT NEEDS A POLICY

Why create_ad_creative needs a policy

This tool creates new advertising assets (ad creatives) which modifies the advertiser's account state. It is classified as Write rather than Execute because it creates marketing data objects rather than executing arbitrary code or operations. It is not Destructive because creative creation is reversible.

From the tool's definition Tool description states it 'Create[s] a new ad creative' with support for image uploads and CTA customization. The action is reversible (creatives can be deleted or modified) but involves committing marketing assets to the Meta ecosystem.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_ad_creative Rate-limited

create_ad_creative stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_ad_creative": {
      "limits": [
        {
          "counter": "create_ad_creative_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Meta Marketing API MCP Server, so you can run agents against it safely.

FAQ

Questions about create_ad_creative

What does the create_ad_creative tool do? +

Create a new ad creative with v23.0 support for both external image URLs and uploaded image hashes. Supports enhanced CTA types and proper object_story_spec structure for Meta API compliance. It is categorised as a Write tool in the Meta Marketing API MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_ad_creative? +

Register the Meta Marketing API MCP Server MCP server in PolicyLayer and add a rule for create_ad_creative: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Meta Marketing API MCP Server. Nothing to install.

What risk level is create_ad_creative? +

create_ad_creative is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_ad_creative? +

Yes. Add a rate_limit block to the create_ad_creative rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block create_ad_creative completely? +

Set action: deny in the PolicyLayer policy for create_ad_creative. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides create_ad_creative? +

create_ad_creative is provided by the Meta Marketing API MCP Server MCP server (pythonando/meta-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.