meta_list_ad_accounts

ServerMeta MCP Server
CategoryRead

WHAT IT DOES

What meta_list_ad_accounts does on Meta MCP Server

AI agents call meta_list_ad_accounts to retrieve information from Meta MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why meta_list_ad_accounts needs a policy

This tool performs a read-only query operation that retrieves and returns account metadata without creating, modifying, deleting, or executing any actions. The blast radius is limited to information disclosure of account identifiers and basic account attributes already accessible to the authenticated user. No side effects or irreversible changes occur.

From the tool's definition Tool name contains 'list' and description states 'Lists all Meta ad accounts accessible to the authenticated user' with return values of account metadata (IDs, names, currency, status, spend info).

Documented attack patterns abuse exactly the kind of access meta_list_ad_accounts gives an agent:

POLICY

How to control meta_list_ad_accounts

PolicyLayer is an MCP gateway — it sits between your AI agents and Meta MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for meta_list_ad_accounts:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "meta_list_ad_accounts": {}
  }
}

meta_list_ad_accounts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Meta MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

More Meta MCP Server tools

Financial meta_create_adset Creates a new ad set within a campaign. Args: - ad_account_id (string): Ad account ID ( Financial meta_create_campaign Creates a new campaign in a Meta ad account. Args: - ad_account_id (string): Ad account Destructive meta_delete_ad Deletes an ad permanently. Args: - ad_id (string): Ad ID to delete Destructive meta_delete_ad_rule Deletes an automated ad rule. Args: - rule_id (string): Ad rule ID Destructive meta_delete_adset Deletes an ad set permanently. Args: - adset_id (string): Ad set ID to delete Destructive meta_delete_campaign Deletes (archives) a campaign. This cannot be undone. Args: - campaign_id (string): Cam Destructive meta_delete_comment Deletes a comment on a Facebook Page post. Permanent action. Args: - comment_id (string Destructive meta_delete_custom_audience Deletes a custom audience permanently. This cannot be undone. Args: - audience_id (stri

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about meta_list_ad_accounts

What does the meta_list_ad_accounts tool do? +

Lists all Meta ad accounts accessible to the authenticated user. Returns ad account IDs (prefixed with act_), names, currency, status, and spend info. Call this first to get ad account IDs needed for campaign and insights tools. It is categorised as a Read tool in the Meta MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on meta_list_ad_accounts? +

Register the Meta MCP Server MCP server in PolicyLayer and add a rule for meta_list_ad_accounts: 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 MCP Server. Nothing to install.

What risk level is meta_list_ad_accounts? +

meta_list_ad_accounts is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit meta_list_ad_accounts? +

Yes. Add a rate_limit block to the meta_list_ad_accounts 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 meta_list_ad_accounts completely? +

Set action: deny in the PolicyLayer policy for meta_list_ad_accounts. 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 meta_list_ad_accounts? +

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

Enforce policy on every Meta MCP Server tool call.

Start from Meta MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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