Low Risk

feed

Fetch RSS/Atom feed as JSON.

Risk signalsHandles credentials or secrets (api_key)

Part of the Rss2json server.

feed is read-only, but an agent in a loop can still rack up calls and cost. PolicyLayer caps every call before it runs. Live in minutes.

SECURE RSS2JSON →

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AI agents call feed to retrieve information from Rss2json without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though feed only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "feed": {}
  }
}

See the full Rss2json policy for all 21 tools.

Get this rule live on your own Rss2json server in minutes. PolicyLayer enforces it on every call, before it runs.

ENFORCE ON MY RSS2JSON →

View all 21 tools →

These attack patterns abuse exactly the kind of access feed gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so feed only ever does what you allow.

SECURE RSS2JSON →

Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.

What does the feed tool do? +

Fetch RSS/Atom feed as JSON.. It is categorised as a Read tool in the Rss2json MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on feed? +

Register the Rss2json MCP server in PolicyLayer and add a rule for 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 Rss2json. Nothing to install.

What risk level is feed? +

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

Can I rate-limit feed? +

Yes. Add a rate_limit block to the 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 feed completely? +

Set action: deny in the PolicyLayer policy for 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 feed? +

feed is provided by the Rss2json MCP server (https://gateway.pipeworx.io/rss2json/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Rss2json tool call.

Deterministic rules across all 21 Rss2json tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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