curl_download

Download a file using curl

SERVERCurl MCP Server SOURCE247arjun/mcp-curl

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/247arjun-mcp-curl/curl-download.md

WHAT IT DOES

What curl_download does on Curl MCP Server

AI agents call curl_download to retrieve information from Curl MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why curl_download is rated Low

Even though curl_download only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs curl_download safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Curl MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For curl_download, this is the rule to start with:

curl_download Allowed

curl_download is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Curl MCP Server, apply this rule, and every curl_download call is checked against it from then on.

FAQ

Questions about curl_download

What does the curl_download tool do? +

Download a file using curl. It is categorised as a Read tool in the Curl MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on curl_download? +

Register the Curl MCP Server MCP server in PolicyLayer and add a rule for curl_download: 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 Curl MCP Server. Nothing to install.

What risk level is curl_download? +

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

Can I rate-limit curl_download? +

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

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

curl_download is provided by the Curl MCP Server MCP server (247arjun/mcp-curl). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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