# create_webhook A write tool on the Mailchimp MCP MCP server. Agent View of the PolicyLayer registry record for `create_webhook`. HTML page: https://policylayer.com/tools/damientilman-mailchimp-mcp-server/create-webhook ## Facts - Tool: `create_webhook` - Server: Mailchimp MCP (`damientilman/mailchimp-mcp-server`) — https://policylayer.com/tools/damientilman-mailchimp-mcp-server.md - Homepage: https://github.com/damientilman/mailchimp-mcp-server - Risk category: Write (Medium risk) - Registry record: grade F, identity unverified - 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": "create_webhook", "arguments": {} } } ``` ## Why create_webhook is rated Medium Webhooks are reversible configuration objects that can be created and deleted. Creating a webhook is a write operation that modifies account settings and can establish integrations, but it is not destructive (no permanent deletion) nor financial (no money movement). The empty description lowers confidence slightly, but the tool name and server context clearly indicate a Write action. From the tool's own definition: "Tool is named 'create_webhook' and is on a Mailchimp MCP server alongside other data-manipulation tools like 'create_campaign', 'create_audience', and 'add_member'. Creating a webhook is a configuration change that modifies Mailchimp's integration settings." ## Use case AI agents use create_webhook to create or update resources in Mailchimp MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mailchimp MCP environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Mailchimp MCP: ```json { "version": "1", "default": "deny", "tools": { "create_webhook": { "limits": [ { "counter": "create_webhook_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Mailchimp MCP (226) - `cancel_send` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/cancel-send.md - `delete_audience` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-audience.md - `delete_batch_webhook` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-batch-webhook.md - `delete_campaign` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-campaign.md - `delete_campaign_feedback` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-campaign-feedback.md - `delete_campaign_folder` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-campaign-folder.md - `delete_connected_site` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-connected-site.md - `delete_file` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-file.md - `delete_interest` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-interest.md - `delete_interest_category` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-interest-category.md - `delete_landing_page` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-landing-page.md - `delete_member` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-member.md - `delete_member_note` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-member-note.md - `delete_member_permanent` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-member-permanent.md - `delete_merge_field` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-merge-field.md - `delete_promo_code` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-promo-code.md - `delete_promo_rule` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-promo-rule.md - `delete_segment` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-segment.md - `delete_store` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-store.md - `delete_store_cart` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-store-cart.md - `delete_store_customer` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-store-customer.md - `delete_store_order` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-store-order.md - `delete_store_order_line` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-store-order-line.md - `delete_store_product` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-store-product.md - `delete_store_product_image` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-store-product-image.md - `delete_store_product_variant` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-store-product-variant.md - `delete_template` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-template.md - `delete_template_folder` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-template-folder.md - `delete_verified_domain` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-verified-domain.md - `delete_webhook` — Destructive — https://policylayer.com/tools/damientilman-mailchimp-mcp-server/delete-webhook.md - …and 196 more: https://policylayer.com/tools/damientilman-mailchimp-mcp-server.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=damientilman-mailchimp-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/damientilman-mailchimp-mcp-server