zernio_delete_api_key
Revoke and permanently delete an API key.
This record as markdown: /tools/eyalm321-zernio-mcp/zernio-delete-api-key.md
What zernio_delete_api_key does on Zernio
AI agents call zernio_delete_api_key to permanently remove resources in Zernio, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why zernio_delete_api_key is rated Critical
Deleting an API key is a destructive operation that cannot be undone. This action removes authentication credentials and access permissions permanently, potentially breaking integrations and access for legitimate users or applications. While not directly harmful like deleting user data, the irreversible nature and security implications (loss of access control) justify the Destructive category over Execute.
From the tool's definition Tool name is 'zernio_delete_api_key' and description states 'Revoke and permanently delete an API key.' The use of 'permanently delete' indicates an irreversible destructive action.
Attacks that exploit this kind of access
The rule that runs zernio_delete_api_key safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Zernio, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For zernio_delete_api_key, this is the rule to start with:
zernio_delete_api_key is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Zernio, apply this rule, and every zernio_delete_api_key call is checked against it from then on.
Questions about zernio_delete_api_key
Revoke and permanently delete an API key. It is categorised as a Destructive tool in the Zernio MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Zernio MCP server in PolicyLayer and add a rule for zernio_delete_api_key: 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 Zernio. Nothing to install.
zernio_delete_api_key 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 zernio_delete_api_key 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 zernio_delete_api_key. 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.
zernio_delete_api_key is provided by the Zernio MCP server (eyalm321/zernio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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