Delete a credential. Requires write_mode.
AI agents call delete_credential to permanently remove resources in N8n — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deleting a credential permanently removes authentication/authorization data that cannot be recovered. This is irreversible data destruction. While credentials themselves are not financial assets, their deletion can break workflow authentication and cause cascading operational damage.
From the tool's definition Tool name is 'delete_credential' with description stating 'Delete a credential.' The verb 'delete' is explicit and irreversible.
Attacks that exploit this kind of access
Delete a credential. Requires write_mode. It is categorised as a Destructive tool in the N8n MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the N8n MCP server in PolicyLayer and add a rule for delete_credential: 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. Nothing to install.
delete_credential is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_credential 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 delete_credential. 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.
delete_credential is provided by the N8n MCP server (siddharth0903/n8n-mcp). 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.
Teams ship this data inside their own products. See what a licence covers →