START HERE. Returns a high-level map of the Toss Securities Open API: title, version, base server
AI agents call get_api_overview to retrieve information from Tossinvest Openapi without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves API metadata without side effects. It does not create, modify, delete, or execute any operations. It is informational only, making it a Read category tool with low severity since exposing API metadata poses minimal risk compared to tools that modify or execute operations.
From the tool's definition Tool returns a high-level map of the API including title, version, and base server. The verb 'returns' and the descriptive nature (no modification, execution, or deletion) indicate this is purely a data retrieval operation.
Attacks that exploit this kind of access
START HERE. Returns a high-level map of the Toss Securities Open API: title, version, base server. It is categorised as a Read tool in the Tossinvest Openapi MCP Server, which means it retrieves data without modifying state.
Register the Tossinvest Openapi MCP server in PolicyLayer and add a rule for get_api_overview: 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 Tossinvest Openapi. Nothing to install.
get_api_overview is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_api_overview 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 get_api_overview. 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.
get_api_overview is provided by the Tossinvest Openapi MCP server (jeongseongmok/tossinvest-openapi-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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