열린재정 OpenAPI 전체 카탈로그(157개)를 카테고리별로 안내합니다. category 없이 호출하면 카테고리 요약을 반환합니다. category를 지정하면 해당 카테고리의 전체 API 목록(코드·이름·필수파라미터)을 반환합니다. 데이터를 찾을 때: fiscal_guide → fiscal_search → fiscal_query 순서로 사용하세요.
AI agents call fiscal_guide to retrieve information from Fiscal Api without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only tool that retrieves and presents structured metadata about available APIs. It has no side effects—it queries and returns informational data about fiscal APIs without creating, modifying, deleting, executing code, or committing financial transactions.
From the tool's definition Tool returns API catalogue information and metadata ('API 목록(코드·이름·필수파라미터)') when called with or without category parameter. Description explicitly states it 'guides' (안내합니다) and 'returns' (반환합니다) catalogue data without modification.
Attacks that exploit this kind of access
열린재정 OpenAPI 전체 카탈로그(157개)를 카테고리별로 안내합니다. category 없이 호출하면 카테고리 요약을 반환합니다. category를 지정하면 해당 카테고리의 전체 API 목록(코드·이름·필수파라미터)을 반환합니다. 데이터를 찾을 때: fiscal_guide → fiscal_search → fiscal_query 순서로 사용하세요. It is categorised as a Read tool in the Fiscal Api MCP Server, which means it retrieves data without modifying state.
Register the Fiscal Api MCP server in PolicyLayer and add a rule for fiscal_guide: 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 Fiscal Api. Nothing to install.
fiscal_guide 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 fiscal_guide 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 fiscal_guide. 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.
fiscal_guide is provided by the Fiscal Api MCP server (yangheeseok1/fiscal-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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