List all Facebook ad accounts you have access to. Returns account IDs, names, and status.
Part of the Facebook_ads server.
Free to start. No card required.
AI agents call fb_list_ad_accounts to retrieve information from Facebook_ads without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though fb_list_ad_accounts only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"fb_list_ad_accounts": {}
}
}See the full Facebook_ads policy for all 25 tools.
These attack patterns abuse exactly the kind of access fb_list_ad_accounts gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
List all Facebook ad accounts you have access to. Returns account IDs, names, and status.. It is categorised as a Read tool in the Facebook_ads MCP Server, which means it retrieves data without modifying state.
Register the Facebook_ads MCP server in PolicyLayer and add a rule for fb_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 Facebook_ads. Nothing to install.
fb_list_ad_accounts is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the fb_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.
Set action: deny in the PolicyLayer policy for fb_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.
fb_list_ad_accounts is provided by the Facebook_ads MCP server (https://gateway.pipeworx.io/facebook_ads/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 25 Facebook_ads tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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