> ## Documentation Index > Fetch the complete documentation index at: https://www.adspirer.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create Demand Gen Campaign > 🔄 LONG-RUNNING TOOL: Creates a Demand Gen campaign across ALL Google channels — YouTube, Discover, Gmail, Display, and Maps. Emits MCP progress updates during creation (typically 10-20 seconds). ⚠️ CRITICAL WARNING ⚠️ - Call this tool ONLY ONCE per campaign - Creates REAL campaigns that cost REAL money - Do NOT retry automatically if errors occur - Report errors to user instead of retrying 🌐 **Demand Gen Campaign Channels (ALL enabled by default):** ✅ YouTube In-Feed (search results & related videos) ✅ YouTube In-Stream (before/during/after videos) ✅ YouTube Shorts (Shorts feed) ✅ Gmail (Promotions & Social tabs) ✅ Discover (Google Discover feed) ✅ Display (Google Display Network) ❌ Maps (opt-in, disabled by default) ## OpenAPI ````yaml /api-reference/openapi.json post /api/v1/tools/create_demandgen_campaign/execute openapi: 3.1.0 info: contact: email: support@adspirer.com name: Adspirer Support description: >- REST endpoints for every Adspirer tool. Same surface as the MCP server, over plain HTTP for consumers that can't speak SSE (n8n, Zapier, Make, curl, any language's HTTP client). ## Envelope Every request wraps tool-specific input in an `arguments` object: ```json { "arguments": { } } ``` Every response wraps the result in either a success envelope (`success: true`, `data: {...}`) or an error envelope (`success: false`, `error: "..."`, `is_error: true`). ## Authentication Pass your API key as `Authorization: Bearer sk_live_...` on every request. Generate keys at https://adspirer.ai/keys. ## Quota & billing Every successful billable call decrements your monthly tool-call allowance. The current counter is attached to every 200 response under `data.quota`: ```json "quota": { "used": 42, "limit": 150, "tier": "plus", "period_end": "2026-05-01" } ``` When the limit is hit, the API returns HTTP 402 with a full `quota` block including `upgrade_url`. Read-only diagnostic tools (`get_usage_status`, `list_connected_accounts`, `get_connections_status`) are exempt and never consume quota. ## Idempotency Write operations accept an `Idempotency-Key: ` header. A repeated call with the same key returns the cached result rather than executing twice. **Strongly recommended for n8n, Zapier, and any retry-prone client** — it prevents duplicate campaigns when networks misbehave. Generate a fresh UUID per logical operation (not per retry). ## Multi-account users Customers with multiple connected accounts on the same platform (e.g. an agency with 10 Meta ad accounts) must specify which account to use via `ad_account_id`, `customer_id`, `advertiser_id`, or `account_id` depending on the platform. Omitting it returns HTTP 400 with a list of valid account IDs. See `list_connected_accounts` to discover available IDs. ## HTTP status codes - `200` — success (parse `data`) - `400` — tool-level error (surface `error` to users) - `401` — bad/missing API key - `402` — Adspirer quota exhausted - `404` — unknown tool name - `429` — upstream ad platform rate-limited us (Meta/Google/etc.) — retry with backoff - `500` — server error, report to support ## Streaming This endpoint is plain request-response JSON. There is **no SSE, no chunked streaming**. Safe to use from n8n Cloud's HTTP Request node, Zapier Webhooks, Make HTTP module, curl, and every mainstream HTTP library. title: Adspirer REST API version: 1.0.0 servers: - description: Production url: https://api.adspirer.ai security: [] tags: - description: Audit tools name: audit - description: General (Account Management) tools name: general - description: Google Ads tools name: google-ads - description: LinkedIn Ads tools name: linkedin-ads - description: Meta Ads tools name: meta-ads - description: Monitoring & Reporting tools name: monitoring - description: TikTok Ads tools name: tiktok-ads paths: /api/v1/tools/create_demandgen_campaign/execute: post: tags: - google-ads summary: Create Demand Gen Campaign description: > 🔄 LONG-RUNNING TOOL: Creates a Demand Gen campaign across ALL Google channels — YouTube, Discover, Gmail, Display, and Maps. Emits MCP progress updates during creation (typically 10-20 seconds). ⚠️ CRITICAL WARNING ⚠️ - Call this tool ONLY ONCE per campaign - Creates REAL campaigns that cost REAL money - Do NOT retry automatically if errors occur - Report errors to user instead of retrying 🌐 **Demand Gen Campaign Channels (ALL enabled by default):** ✅ YouTube In-Feed (search results & related videos) ✅ YouTube In-Stream (before/during/after videos) ✅ YouTube Shorts (Shorts feed) ✅ Gmail (Promotions & Social tabs) ✅ Discover (Google Discover feed) ✅ Display (Google Display Network) ❌ Maps (opt-in, disabled by default) operationId: execute_create_demandgen_campaign parameters: - description: >- Client-generated UUID to make writes idempotent. Strongly recommended for write tools. A repeat call with the same key returns the cached result instead of re-executing. Example: 550e8400-e29b-41d4-a716-446655440000 example: 550e8400-e29b-41d4-a716-446655440000 in: header name: Idempotency-Key required: false schema: format: uuid type: string requestBody: content: application/json: example: arguments: ad_format: multi_asset bidding_strategy: MAXIMIZE_CLICKS budget_daily: 1 business_name: string call_to_action: string campaign_name: string descriptions: - string final_url: https://example.com headlines: - string long_headlines: - string target_languages: - string target_locations: - string schema: properties: arguments: description: >- Input schema for create_demandgen_campaign tool. Creates a Demand Gen campaign across ALL Google channels: YouTube (In-Feed, In-Stream, Shorts), Discover, Gmail, Display, and Maps. properties: ad_format: anyOf: - type: string - type: 'null' default: multi_asset description: >- Ad format: 'multi_asset' (image ads, default), 'video_responsive' (video ads). multi_asset requires marketing images. video_responsive requires YouTube video IDs. title: Ad Format asset_bundle_id: anyOf: - type: string - type: 'null' default: null description: Asset bundle ID (UUID) from validate_and_prepare_assets. title: Asset Bundle Id audience_segments: anyOf: - additionalProperties: true type: object - type: 'null' default: null description: >- Optional: Audience targeting for the campaign. CRITICAL: Only use segment IDs returned by search_audiences tool. NEVER fabricate or guess IDs -- wrong IDs target unrelated audiences and waste budget. If search_audiences returns no results, skip audience_segments entirely. Keys: 'in_market_audience_ids' (List[int] -- people actively researching), 'affinity_audience_ids' (List[int] -- people with long-term interests), 'custom_audience_ids' (List[str] -- custom audience resource names from search_audiences), 'user_list_ids' (List[str] -- remarketing/customer match resource names). Example: {'in_market_audience_ids': [80463, 80520], 'affinity_audience_ids': [92913]} title: Audience Segments bidding_strategy: anyOf: - type: string - type: 'null' default: MAXIMIZE_CLICKS description: >- Bidding strategy: MAXIMIZE_CLICKS (default), MAXIMIZE_CONVERSIONS, TARGET_CPA, MAXIMIZE_CONVERSION_VALUE, TARGET_ROAS. Your explicit choice is honored — the engine is advisory only. title: Bidding Strategy budget_daily: description: >- Daily budget in the account's native currency. IMPORTANT: Do NOT convert currencies — pass the user's amount as-is. Example: if user says '₹1000/day', pass 1000 (not a USD conversion). Google recommends minimum ~$20/day USD equivalent for Demand Gen campaigns. minimum: 1 title: Budget Daily type: number business_name: description: 'Business name, max 25 characters. Example: ''Adspirer''' maxLength: 25 title: Business Name type: string call_to_action: anyOf: - type: string - type: 'null' default: null description: >- Call-to-action label. Options: LEARN_MORE, SHOP_NOW, SIGN_UP, SUBSCRIBE, DOWNLOAD, BOOK_NOW, CONTACT_US, GET_QUOTE, APPLY_NOW title: Call To Action campaign_name: description: Campaign name (e.g., 'DemandGen Summer Promo 2026') title: Campaign Name type: string channels: anyOf: - additionalProperties: type: boolean type: object - type: 'null' default: null description: >- Optional channel controls. Keys: youtube_in_feed, youtube_in_stream, youtube_shorts, gmail, discover, display. All default to true (full reach). Example: {"gmail": false, "display": false} to exclude those channels. title: Channels customer_id: anyOf: - type: string - type: 'null' default: null description: >- Google Ads customer ID. Required for multi-account users. Get from list_connected_accounts. title: Customer Id descriptions: description: >- MUST BE JSON ARRAY: 1-5 descriptions, each EXACTLY 90 characters maximum. Example: ["Manage ads with AI - no dashboard needed."]. COUNT CHARACTERS BEFORE CALLING! items: type: string maxItems: 5 minItems: 1 title: Descriptions type: array existing_images: anyOf: - additionalProperties: items: type: string type: array type: object - type: 'null' default: null description: >- Existing image asset resource names to reuse (from discover_existing_assets). Keys: marketing_images_landscape, marketing_images_square, marketing_images_portrait, logos_square. Example: {"marketing_images_landscape": ["customers/123/assets/456"]} title: Existing Images final_url: description: >- Landing page URL (must match verified domain). Example: 'https://example.com/product' title: Final Url type: string headlines: description: >- MUST BE JSON ARRAY: 1-5 headlines, each EXACTLY 40 characters maximum. Example: ["AI Ad Management", "Skip the Dashboard"]. COUNT CHARACTERS! ANY over 40 will be REJECTED! items: type: string maxItems: 5 minItems: 1 title: Headlines type: array logo_asset_id: anyOf: - type: string - type: 'null' default: null description: Logo image asset ID from discover_existing_assets. title: Logo Asset Id logo_images: anyOf: - items: additionalProperties: type: string type: object type: array - type: 'null' default: null description: >- New logo images as [{"url": "https://...", "name": "logo1"}]. title: Logo Images long_headlines: anyOf: - items: type: string maxItems: 5 type: array - type: 'null' default: null description: >- MUST BE JSON ARRAY: Optional 1-5 long headlines, max 90 characters each. Required for video_responsive format. Falls back to headlines if not provided. title: Long Headlines marketing_images: anyOf: - items: additionalProperties: type: string type: object type: array - type: 'null' default: null description: >- Landscape images (1.91:1) as [{"url": "https://...", "name": "img1"}]. At least landscape OR square images required for multi_asset. title: Marketing Images portrait_marketing_images: anyOf: - items: additionalProperties: type: string type: object type: array - type: 'null' default: null description: >- Portrait images (4:5) as [{"url": "https://...", "name": "img1"}]. Optional. title: Portrait Marketing Images square_marketing_images: anyOf: - items: additionalProperties: type: string type: object type: array - type: 'null' default: null description: >- Square images (1:1) as [{"url": "https://...", "name": "img1"}]. title: Square Marketing Images target_cpa: anyOf: - minimum: 0.01 type: number - type: 'null' default: null description: >- Target CPA in account's native currency (only for TARGET_CPA bidding). Example: 25.0 title: Target Cpa target_languages: anyOf: - items: type: string type: array - type: 'null' default: null description: >- Language targets as ISO codes (e.g., ['en', 'es']). Defaults to English. title: Target Languages target_locations: anyOf: - items: type: string type: array - type: 'null' default: null description: >- Geographic targets globally (e.g., ['India', 'United States', 'London']). Supports countries, states, cities worldwide. Defaults to United States. title: Target Locations target_roas: anyOf: - minimum: 0.01 type: number - type: 'null' default: null description: >- Target ROAS multiplier (only for TARGET_ROAS bidding). Example: 3.5 means 350% return on ad spend. title: Target Roas youtube_video_ids: anyOf: - items: type: string type: array - type: 'null' default: null description: >- YouTube video IDs (each 11 chars) for video_responsive format. 1-5 videos. Must be validated first using validate_video tool. title: Youtube Video Ids required: - campaign_name - budget_daily - final_url - business_name - headlines - descriptions type: object required: - arguments type: object description: >- All tool arguments are wrapped in an `arguments` object. The fields accepted inside `arguments` are listed below — required fields are marked with a red asterisk. required: true responses: '200': content: application/json: example: data: quota: limit: 150 period_end: '2026-05-01' tier: plus used: 42 text: (tool-specific textual output for create_demandgen_campaign) success: true tool: create_demandgen_campaign schema: $ref: '#/components/schemas/SuccessResponse' description: >- Tool executed successfully. `data.text` carries the human-readable result (markdown-friendly). `data.quota` shows your current usage against the plan limit. `data.structured` appears when the tool emits machine-parseable structured content. `data.content` appears for tools that return non-text blocks (images, resources). '400': content: application/json: example: error: >- You have 25 meta_ads accounts connected. Please specify which account to use by passing the ad_account_id parameter: - Acme Holdings (ad_account_id="act_123456789") - Acme EU (ad_account_id="act_987654321") is_error: true success: false tool: create_demandgen_campaign schema: $ref: '#/components/schemas/ErrorResponse' description: >- Tool-level error. The `error` string is safe to surface to end users. Common causes: missing required argument, multi-account user didn't specify which account, upstream platform validation failure. '401': content: application/json: example: error: >- Not authenticated. Please connect your Adspirer account first at https://adspirer.ai is_error: true success: false tool: create_demandgen_campaign schema: $ref: '#/components/schemas/ErrorResponse' description: Invalid, expired, or revoked API key. '402': content: application/json: example: error: |- 🚨 Monthly limit reached (150/150 tool calls on Plus tier). Upgrade to Pro at https://adspirer.ai to keep building. is_error: true quota: limit: 150 period_end: '2026-05-01' tier: plus upgrade_url: https://adspirer.ai used: 150 success: false tool: create_demandgen_campaign schema: $ref: '#/components/schemas/QuotaErrorResponse' description: >- Quota exhausted for the current billing period. The response includes a `quota` block with the current used/limit/tier values and an `upgrade_url` to move up a tier. '404': content: application/json: example: error: 'Tool not found: create_demandgen_campaign' is_error: true success: false tool: create_demandgen_campaign schema: $ref: '#/components/schemas/ErrorResponse' description: Unknown tool_name. Check /openapi.json for the full catalog. '429': content: application/json: example: error: >- Upstream platform rate limit hit (Meta Business Use Case throttle at 95%). Retry after 60 seconds. is_error: true success: false tool: create_demandgen_campaign schema: $ref: '#/components/schemas/ErrorResponse' description: >- Rate-limited by the upstream ad platform (Meta, Google, LinkedIn, TikTok). Retry with exponential backoff. Not the same as Adspirer's own quota — that returns 402. '500': content: application/json: example: error: 'Internal error: RuntimeError' is_error: true success: false tool: create_demandgen_campaign schema: $ref: '#/components/schemas/ErrorResponse' description: >- Unexpected server error. Report to support@adspirer.com with request_id. security: - ApiKeyAuth: [] components: schemas: SuccessResponse: description: >- Returned on HTTP 200. `data.text` is the primary human-readable output. `data.quota` is always present for billable calls. `data.structured` is set only when the tool emits machine-parseable structured content. `data.content` is set only when the tool emits non-text content blocks. properties: data: properties: content: description: Non-text content blocks (images, resources). items: $ref: '#/components/schemas/ContentBlock' type: array quota: $ref: '#/components/schemas/QuotaBlock' structured: additionalProperties: true description: >- Machine-parseable structured content when the tool provides it (e.g. account selection prompts, widget payloads). type: object text: description: >- Human-readable output. Markdown-friendly for tools that emit formatted lists, tables, or recommendations. type: string required: - text type: object success: const: true type: boolean tool: description: Echoed tool_name from the request URL. type: string required: - success - data - tool type: object ErrorResponse: description: >- Returned on HTTP 4xx / 5xx (except 402 which uses `QuotaErrorResponse`). `error` is always a human-readable string safe to surface to end users. properties: error: description: Human-readable error message. type: string is_error: const: true type: boolean structured_content: additionalProperties: true description: >- Present when the underlying tool attached structured metadata to the error (e.g. account-selection lists). type: object success: const: false type: boolean tool: type: string required: - success - error - tool type: object QuotaErrorResponse: description: >- Returned on HTTP 402 when the monthly quota is exhausted. Identical to `ErrorResponse` but with an additional `quota` block. properties: error: type: string is_error: const: true type: boolean quota: $ref: '#/components/schemas/QuotaBlock' success: const: false type: boolean tool: type: string required: - success - error - tool - quota type: object ContentBlock: additionalProperties: true description: >- A non-text content block. Rare today; tools that attach images, resources, or widget payloads populate `data.content` with blocks of this shape. properties: type: example: image type: string required: - type type: object QuotaBlock: description: >- Current quota state for the API key owner. Attached to every successful billable response under `data.quota`, and to 402 errors under `quota` (plus `upgrade_url`). properties: limit: description: Tool call allowance for the current tier. example: 150 type: integer period_end: description: When the monthly counter resets (ISO date). example: '2026-05-01' format: date type: string tier: description: Subscription tier of the account that owns the API key. enum: - free - plus - pro - max example: plus type: string upgrade_url: description: Upgrade link (present only on 402 quota errors). format: uri type: string used: description: Tool calls consumed this billing period. example: 42 type: integer required: - used - limit - tier - period_end type: object securitySchemes: ApiKeyAuth: bearerFormat: API Key (sk_live_...) description: >- API key from https://adspirer.ai/keys. Prefix `sk_live_`. Treat as a secret — never commit. scheme: bearer type: http ````