Fetch JSON from an external HTTPS API server-side. Bypasses browser CORS restrictions. Use for financial data sources like Oracle APIs, MarketCoincab, CoinGecko, CoinMarketCap, or any market data endpoint. Returns parsed JSON or raw text if non-JSON. Only HTTPS URLs allowed.
AI agents call external_api_fetch to retrieve information from ItchWPMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs read-only HTTP GET requests to external APIs and returns data. It has no side effects on the WordPress installation itself. However, it poses a medium severity risk because it bypasses CORS restrictions and can be directed to arbitrary HTTPS endpoints by an AI agent, potentially exfiltrating data or probing internal/external services (SSRF risk).
From the tool's definition Fetch JSON from an external HTTPS API server-side... Returns parsed JSON or raw text if non-JSON. Only HTTPS URLs allowed.
Attacks that exploit this kind of access
Fetch JSON from an external HTTPS API server-side. Bypasses browser CORS restrictions. Use for financial data sources like Oracle APIs, MarketCoincab, CoinGecko, CoinMarketCap, or any market data endpoint. Returns parsed JSON or raw text if non-JSON. Only HTTPS URLs allowed. It is categorised as a Read tool in the ItchWPMCP MCP Server, which means it retrieves data without modifying state.
Register the ItchWP MCP server in PolicyLayer and add a rule for external_api_fetch: 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 ItchWPMCP. Nothing to install.
external_api_fetch 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 external_api_fetch 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 external_api_fetch. 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.
external_api_fetch is provided by the ItchWP MCP server (manofsadness/itchwpmcp). 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.
Teams ship this data inside their own products. See what a licence covers →