get_lastfm_now_playing

THE RISK

Low Risk

Why get_lastfm_now_playing needs a policy

This tool queries real-time data about the user's current music playback from Last.fm. It is purely informational—no data is created, modified, deleted, or executed. The blast radius of misuse is minimal since it only exposes publicly-queryable listening information (or information the user has already chosen to share via Last.fm). Categorized as Read due to its data retrieval nature.

From the tool's definition Tool retrieves current music listening status via Last.fm API. Description explicitly uses 'check' and 'listening to', which are query/retrieval operations with no modifications or side effects.

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

POLICY

How to control get_lastfm_now_playing

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

policy.json

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

get_lastfm_now_playing 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 Me — 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 Me tools

Read ask_about_me Ask any question about this person and get an answer based on their complete profile. Read get_bluesky_posts Get recent posts from ${this.config.handle} Read get_devto_latest Get the most recent articles by ${this.config.username} Read get_github_repos List public repositories for ${this.config.username} Read get_gitlab_projects List projects for ${this.config.username} with optional filters Read get_hn_karma Get current karma and submission count for ${this.config.username} Read get_lastfm_top Get top artists or tracks for ${this.config.username} Read get_mastodon_posts Get recent toots from ${this.config.handle}

All 17 Mcp Me tools →

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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 get_lastfm_now_playing

What does the get_lastfm_now_playing tool do? +

Check what ${this.config.username} is listening to right now. It is categorised as a Read tool in the Mcp Me MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_lastfm_now_playing? +

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

What risk level is get_lastfm_now_playing? +

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

Can I rate-limit get_lastfm_now_playing? +

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

Set action: deny in the PolicyLayer policy for get_lastfm_now_playing. 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 get_lastfm_now_playing? +

get_lastfm_now_playing is provided by the Mcp Me MCP server (paladini/mcp-me). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Me tool call.

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

CHECK YOUR STACK →