AI agents call check_api_responses to retrieve information from Apifox MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and validates API response definitions but does not create, modify, delete, or execute external operations. It is purely informational—examining existing API schema data to assess response definition completeness. No side effects or state changes occur.
From the tool's definition Tool name 'check_api_responses' and description '检查单个 API 的响应体定义完整性' (Check the completeness of a single API's response body definition) indicate a query/inspection operation.
Documented attack patterns abuse exactly the kind of access check_api_responses gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apifox MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for check_api_responses:
{
"version": "1",
"default": "deny",
"tools": {
"check_api_responses": {}
}
}check_api_responses is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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检查单个 API 的响应体定义完整性。. It is categorised as a Read tool in the Apifox MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Apifox MCP Server MCP server in PolicyLayer and add a rule for check_api_responses: 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 Apifox MCP Server. Nothing to install.
check_api_responses 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 check_api_responses 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 check_api_responses. 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.
check_api_responses is provided by the Apifox MCP Server MCP server (iwen-conf/apifox-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Apifox MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
22 Apifox MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.