fetch_rss_feed

THE RISK

Low Risk

Why fetch_rss_feed needs a policy

This tool retrieves and parses publicly available RSS feed data. It performs no modifications, deletions, code execution, or financial operations. The operation is read-only with no adverse side effects from misuse, making it low severity despite the potential for information gathering.

From the tool's definition Tool description states it 'Fetches and parses an RSS feed, returning structured data' — a retrieval operation with no side effects. The verb 'fetches' and outcome 'returning' indicate data query/retrieval only.

Documented attack patterns abuse exactly the kind of access fetch_rss_feed gives an agent:

POLICY

How to control fetch_rss_feed

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Rss, and nothing reaches the server without passing your rules. This is the rule we recommend for fetch_rss_feed:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "fetch_rss_feed": {}
  }
}

fetch_rss_feed is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp Rss — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Mcp Rss tools

Read extract_feed_content Extract and format feed content for different use cases Read fetch_multiple_feeds Batch fetch multiple RSS feeds with success/error status for each Read get_feed_headlines Gets a list of headlines from a feed, including title, summary, and URL. Read monitor_feed_updates Check for new items in a feed since a specific time or last check Read search_feed_items Search for content across one or more RSS feeds

All 6 Mcp Rss tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about fetch_rss_feed

What does the fetch_rss_feed tool do? +

Fetches and parses an RSS feed, returning structured data with feed info and items. It is categorised as a Read tool in the Mcp Rss MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on fetch_rss_feed? +

Register the Mcp Rss MCP server in PolicyLayer and add a rule for fetch_rss_feed: 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 Mcp Rss. Nothing to install.

What risk level is fetch_rss_feed? +

fetch_rss_feed is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit fetch_rss_feed? +

Yes. Add a rate_limit block to the fetch_rss_feed 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.

How do I block fetch_rss_feed completely? +

Set action: deny in the PolicyLayer policy for fetch_rss_feed. 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.

What MCP server provides fetch_rss_feed? +

fetch_rss_feed is provided by the Mcp Rss MCP server (missionsquad/mcp-rss). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Rss tool call.

Start from Mcp Rss, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →