키움 REST API 접근토큰을 폐기합니다 (au10002).
AI agents call revoke_access_token to permanently remove resources in Kiwoom API MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Revoking an access token is a destructive, irreversible action. Once revoked, the token is permanently invalidated, potentially disrupting ongoing API access. While it does not delete financial data or execute trades, it irreversibly destroys a credential/session artifact.
From the tool's definition '접근토큰을 폐기합니다' translates to 'revokes/destroys the access token' — token revocation is irreversible; the token cannot be restored once invalidated
Attacks that exploit this kind of access
키움 REST API 접근토큰을 폐기합니다 (au10002). It is categorised as a Destructive tool in the Kiwoom API MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Kiwoom API MCP Server MCP server in PolicyLayer and add a rule for revoke_access_token: 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 Kiwoom API MCP Server. Nothing to install.
revoke_access_token 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 revoke_access_token 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 revoke_access_token. 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.
revoke_access_token is provided by the Kiwoom API MCP Server MCP server (kerydos/kiwoom_api_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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