Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.
AI agents call unsubscribe to permanently remove resources in Mcp Currents — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
id | string | Yes | Subscription id (uuid) returned by subscribe. |
Parameters from the server's own tool schema.
An AI agent that decides to call unsubscribe doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Mcp Currents is gone — there is no undo for destructive operations.
Attacks that exploit this kind of access
Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts. It is categorised as a Destructive tool in the Mcp Currents MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
unsubscribe accepts 1 parameter: id. Required: id. The full parameter table on this page comes from the server's own tool schema.
Register the Mcp Currents MCP server in PolicyLayer and add a rule for unsubscribe: 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 Mcp Currents. Nothing to install.
unsubscribe 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 unsubscribe 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 unsubscribe. 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.
unsubscribe is provided by the Mcp Currents MCP server (https://gateway.pipeworx.io/currents/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.
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