openai_ads_geo_search
Look up ChatGPT Ads location ids by name — countries, regions and DMAs — so a campaign can be geo-targeted. GEO AND CUSTOM AUDIENCES ARE THE ONLY LIST-BASED TARGETING THIS PLATFORM HAS: there are no interests, no lookalikes, no age or gender. Everything else is semantic, through an ad group’s con...
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What openai_ads_geo_search does on Hermoso
AI agents call openai_ads_geo_search to retrieve information from Hermoso without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why openai_ads_geo_search is rated Low
Even though openai_ads_geo_search only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs openai_ads_geo_search safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Hermoso, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For openai_ads_geo_search, this is the rule to start with:
openai_ads_geo_search is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Hermoso, apply this rule, and every openai_ads_geo_search call is checked against it from then on.
Questions about openai_ads_geo_search
Look up ChatGPT Ads location ids by name — countries, regions and DMAs — so a campaign can be geo-targeted. GEO AND CUSTOM AUDIENCES ARE THE ONLY LIST-BASED TARGETING THIS PLATFORM HAS: there are no interests, no lookalikes, no age or gender. Everything else is semantic, through an ad group’s context hints. Custom audiences are targeted with customAudienceIds / excludedCustomAudienceIds (see list_openai_ads_audiences). Pass the returned ids as locationIds when creating or updating a campaign; a campaign with no location targeting runs everywhere available. OpenAI opens new markets without notice (Indonesia, Malaysia, the Philippines, Singapore, Thailand, Vietnam and Taiwan went live 2026-09-30), so search a market rather than assuming from memory that ChatGPT Ads does not serve it. Read-only, free. It is categorised as a Read tool in the Hermoso MCP Server, which means it retrieves data without modifying state.
Register the Hermoso MCP server in PolicyLayer and add a rule for openai_ads_geo_search: 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 Hermoso. Nothing to install.
openai_ads_geo_search 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 openai_ads_geo_search 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 openai_ads_geo_search. 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.
openai_ads_geo_search is provided by the Hermoso MCP server (https://app.hermoso.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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