# set_openai_ads_daily_spend_limit Create or change the ACCOUNT-WIDE DAILY SPENDING LIMIT on ChatGPT Ads: the most all campaigns together may spend each day, renewing at midnight in the account timezone, until it is removed or reaches its optional end date. OpenAI offers it only on ad accounts with postpaid INVOICE billing and it needs billing-management permission; a card-billed account is refused whatever key is used. amount is per day in the account currency and is required even when only the end date changes (0 stops account spend). A NEW limit starts tomorrow or later: list_openai_ads_spend_windows names the earliest start date. On an existing limit leave startDate out, because its start cannot change. An account can hold SEVERAL non-overlapping daily rules (list_openai_ads_spend_windows returns each with a windowId): pass windowId to change one, or newRule:true (with startDate) to add another; with more than one rule OpenAI requires the windowId. endDate is exclusive; noEndDate:true clears it. A daily limit and a date-range window cannot overlap. Lowering it can stop delivery and raising it lets campaigns spend up to their own budgets, so show the user the current and new values first: without confirm:true AND expectedRevision (the revision list_openai_ads_spend_windows returns) nothing changes and the reply states what would. The result is read back from ChatGPT Ads. Agent View of the PolicyLayer registry record for `set_openai_ads_daily_spend_limit`. HTML page: https://policylayer.com/tools/hermoso/set-openai-ads-daily-spend-limit ## Facts - Tool: `set_openai_ads_daily_spend_limit` - Server: Hermoso (`https://app.hermoso.ai/mcp`) — https://policylayer.com/tools/hermoso.md - Homepage: git+https://github.com/hermoso-ai/hermoso.git - Risk category: Write (Medium risk) - Registry record: grade D, identity unverified - Server auth posture: gated - Server CORS policy: * - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "set_openai_ads_daily_spend_limit", "arguments": {} } } ``` ## Why set_openai_ads_daily_spend_limit is rated Medium An AI agent can call set_openai_ads_daily_spend_limit faster than any human can review: one bad instruction and it creates or modifies resources in Hermoso by the hundred, each call as confident as the last. ## Use case AI agents use set_openai_ads_daily_spend_limit to create or update resources in Hermoso, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hermoso environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Hermoso: ```json { "version": "1", "default": "deny", "tools": { "set_openai_ads_daily_spend_limit": { "limits": [ { "counter": "set_openai_ads_daily_spend_limit_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Hermoso (895) - `answer_google_business_question` — Destructive — https://policylayer.com/tools/hermoso/answer-google-business-question.md - `apple_ads_change_history` — Destructive — https://policylayer.com/tools/hermoso/apple-ads-change-history.md - `associate_linkedin_conversion_campaigns` — Destructive — https://policylayer.com/tools/hermoso/associate-linkedin-conversion-campaigns.md - `cancel_openai_ads_audience_operation` — Destructive — https://policylayer.com/tools/hermoso/cancel-openai-ads-audience-operation.md - `cancel_scheduled` — Destructive — https://policylayer.com/tools/hermoso/cancel-scheduled.md - `cancel_stripe_subscription` — Destructive — https://policylayer.com/tools/hermoso/cancel-stripe-subscription.md - `clear_sheet_range` — Destructive — https://policylayer.com/tools/hermoso/clear-sheet-range.md - `create_analytics_custom_dimension` — Destructive — https://policylayer.com/tools/hermoso/create-analytics-custom-dimension.md - `create_openai_ads_campaign` — Destructive — https://policylayer.com/tools/hermoso/create-openai-ads-campaign.md - `delete_analytics_key_event` — Destructive — https://policylayer.com/tools/hermoso/delete-analytics-key-event.md - `delete_apple_ads_object` — Destructive — https://policylayer.com/tools/hermoso/delete-apple-ads-object.md - `delete_bluesky_post` — Destructive — https://policylayer.com/tools/hermoso/delete-bluesky-post.md - `delete_brand` — Destructive — https://policylayer.com/tools/hermoso/delete-brand.md - `delete_creator` — Destructive — https://policylayer.com/tools/hermoso/delete-creator.md - `delete_dm_automation` — Destructive — https://policylayer.com/tools/hermoso/delete-dm-automation.md - `delete_drive_file` — Destructive — https://policylayer.com/tools/hermoso/delete-drive-file.md - `delete_google_ads_object` — Destructive — https://policylayer.com/tools/hermoso/delete-google-ads-object.md - `delete_google_business_post` — Destructive — https://policylayer.com/tools/hermoso/delete-google-business-post.md - `delete_instagram_dm_automation` — Destructive — https://policylayer.com/tools/hermoso/delete-instagram-dm-automation.md - `delete_linkedin_ads_object` — Destructive — https://policylayer.com/tools/hermoso/delete-linkedin-ads-object.md - `delete_linkedin_comment` — Destructive — https://policylayer.com/tools/hermoso/delete-linkedin-comment.md - `delete_linkedin_lead_subscription` — Destructive — https://policylayer.com/tools/hermoso/delete-linkedin-lead-subscription.md - `delete_merchant_data_source` — Destructive — https://policylayer.com/tools/hermoso/delete-merchant-data-source.md - `delete_merchant_product` — Destructive — https://policylayer.com/tools/hermoso/delete-merchant-product.md - `delete_messenger_marketing_campaign` — Destructive — https://policylayer.com/tools/hermoso/delete-messenger-marketing-campaign.md - `delete_meta_audience` — Destructive — https://policylayer.com/tools/hermoso/delete-meta-audience.md - `delete_meta_catalog` — Destructive — https://policylayer.com/tools/hermoso/delete-meta-catalog.md - `delete_meta_object` — Destructive — https://policylayer.com/tools/hermoso/delete-meta-object.md - `delete_microsoft_ads_object` — Destructive — https://policylayer.com/tools/hermoso/delete-microsoft-ads-object.md - `delete_microsoft_merchant_product` — Destructive — https://policylayer.com/tools/hermoso/delete-microsoft-merchant-product.md - …and 865 more: https://policylayer.com/tools/hermoso.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=hermoso · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/hermoso