Set your OpenDART API key for this session. Get one free at https://opendart.fss.or.kr/ — once set, all tools will use it automatically. / OpenDART API 키를 설정합니다. https://opendart.fss.or.kr/ 에서 무료 발급 후 입력하세요.
AI agents use set_api_key to create or update resources in OpenDART MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your OpenDART MCP Server environment.
The tool creates or modifies session configuration (API key storage) rather than retrieving data. While it doesn't alter persistent external data, it writes to the session context in a way that could persist across tool invocations.
From the tool's definition Tool description states 'Set your OpenDART API key for this session' — this modifies session state by storing credentials that affect subsequent tool behavior.
Attacks that exploit this kind of access
Set your OpenDART API key for this session. Get one free at https://opendart.fss.or.kr/ — once set, all tools will use it automatically. / OpenDART API 키를 설정합니다. https://opendart.fss.or.kr/ 에서 무료 발급 후 입력하세요. It is categorised as a Write tool in the OpenDART MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the OpenDART MCP Server MCP server in PolicyLayer and add a rule for set_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 OpenDART MCP Server. Nothing to install.
set_api_key is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_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 set_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.
set_api_key is provided by the OpenDART MCP Server MCP server (procpalee/opendart-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
set_api_key is one line of OpenDART MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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