# ebay_find_campaign_by_ad_reference Find campaign by ad reference through the eBay Marketing API. Agent View of the PolicyLayer registry record for `ebay_find_campaign_by_ad_reference`. HTML page: https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-find-campaign-by-ad-reference ## Facts - Tool: `ebay_find_campaign_by_ad_reference` - Server: Ebay (`yosefhayim/ebay-mcp`) — https://policylayer.com/tools/yosefhayim-ebay-mcp.md - Homepage: https://github.com/YosefHayim/ebay-mcp - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Allowed ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "ebay_find_campaign_by_ad_reference", "arguments": {} } } ``` ## Why ebay_find_campaign_by_ad_reference is rated Low The tool retrieves campaign information based on an ad reference identifier. It queries existing data without creating, modifying, deleting, or executing any operations. The action is read-only, making it a Read category tool with low severity since it only accesses marketing campaign metadata. From the tool's own definition: "Tool name contains 'find' and description states 'Find campaign by ad reference through the eBay Marketing API' - this is a query/retrieval operation with no side effects." ## Use case AI agents call ebay_find_campaign_by_ad_reference to retrieve information from Ebay without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Ebay: ```json { "version": "1", "default": "deny", "tools": { "ebay_find_campaign_by_ad_reference": {} } } ``` ## Other tools on Ebay (301) - `ebay_bulk_cancel_packages` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-bulk-cancel-packages.md - `ebay_bulk_delete_ads_by_inventory_reference` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-bulk-delete-ads-by-inventory-reference.md - `ebay_bulk_delete_ads_by_listing_id` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-bulk-delete-ads-by-listing-id.md - `ebay_bulk_delete_packages` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-bulk-delete-packages.md - `ebay_cancel_bundle` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-cancel-bundle.md - `ebay_cancel_package` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-cancel-package.md - `ebay_clear_tokens` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-clear-tokens.md - `ebay_delete_ad` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-ad.md - `ebay_delete_ads_by_inventory_reference` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-ads-by-inventory-reference.md - `ebay_delete_campaign` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-campaign.md - `ebay_delete_email_campaign` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-email-campaign.md - `ebay_delete_fulfillment_policy` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-fulfillment-policy.md - `ebay_delete_inventory_item` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-inventory-item.md - `ebay_delete_inventory_item_group` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-inventory-item-group.md - `ebay_delete_inventory_location` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-inventory-location.md - `ebay_delete_item_price_markdown_promotion` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-item-price-markdown-promotion.md - `ebay_delete_item_promotion` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-item-promotion.md - `ebay_delete_notification_destination` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-notification-destination.md - `ebay_delete_notification_subscription` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-notification-subscription.md - `ebay_delete_notification_subscription_filter` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-notification-subscription-filter.md - `ebay_delete_offer` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-offer.md - `ebay_delete_package` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-package.md - `ebay_delete_payment_policy` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-payment-policy.md - `ebay_delete_product_compatibility` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-product-compatibility.md - `ebay_delete_report_task` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-report-task.md - `ebay_delete_return_policy` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-return-policy.md - `ebay_delete_sales_tax` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-sales-tax.md - `ebay_delete_sku_location_mapping` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-delete-sku-location-mapping.md - `ebay_end_listing` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-end-listing.md - `ebay_withdraw_offer` — Destructive — https://policylayer.com/tools/yosefhayim-ebay-mcp/ebay-withdraw-offer.md - …and 271 more: https://policylayer.com/tools/yosefhayim-ebay-mcp.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=yosefhayim-ebay-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/yosefhayim-ebay-mcp