Get webhook URLs for a workflow
AI agents call get_workflow_webhooks to retrieve information from n8n MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves webhook configuration data associated with a workflow. The 'get' verb and retrieval nature of the operation confirm this is a Read action. The blast radius is minimal as it only exposes webhook URLs without executing them or modifying any state.
From the tool's definition Tool name 'get_workflow_webhooks' and description 'Get webhook URLs for a workflow' indicate a retrieval operation with no modification of data.
Attacks that exploit this kind of access
Get webhook URLs for a workflow. It is categorised as a Read tool in the n8n MCP Server MCP Server, which means it retrieves data without modifying state.
Register the n8n MCP Server MCP server in PolicyLayer and add a rule for get_workflow_webhooks: 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 n8n MCP Server. Nothing to install.
get_workflow_webhooks 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 get_workflow_webhooks 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 get_workflow_webhooks. 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.
get_workflow_webhooks is provided by the n8n MCP Server MCP server (nikolausm/n8n-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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