Low Risk

read_url

Extract and convert web page content to clean, readable markdown format. Perfect for reading articles, documentation, blog posts, or any web content. Use this when you need to analyze text content from websites, bypass paywalls, or get structured data.

How to control read_url ↓

What read_url does on Jina AI Remote MCP Server

AI agents call read_url to retrieve information from Jina AI Remote MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why read_url needs a policy

This tool retrieves and transforms web content into a readable format. It performs no data modification, deletion, code execution, or financial transactions. The mention of 'bypass paywalls' does not change the classification—it is still a read operation that queries external content. No side effects or irreversible actions occur. Confidence is high because the description clearly indicates a retrieval-only function.

From the tool's definition Tool name 'read_url' and description explicitly states it 'Extract and convert web page content to clean, readable markdown format' for 'reading articles, documentation, blog posts'. Core function is content retrieval with no modification or execution.

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

How to control read_url

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

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

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

  1. Create a free account and register Jina AI Remote MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
CAP THIS TOOL →

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Related tools and policies

Go deeper

Questions about read_url

What does the read_url tool do? +

Extract and convert web page content to clean, readable markdown format. Perfect for reading articles, documentation, blog posts, or any web content. Use this when you need to analyze text content from websites, bypass paywalls, or get structured data. It is categorised as a Read tool in the Jina AI Remote MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on read_url? +

Register the Jina AI Remote MCP Server MCP server in PolicyLayer and add a rule for read_url: 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 Jina AI Remote MCP Server. Nothing to install.

What risk level is read_url? +

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

Can I rate-limit read_url? +

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

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

read_url is provided by the Jina AI Remote MCP Server MCP server (jina-ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Jina AI Remote MCP Server tool call.

Start from Jina AI Remote MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

21 Jina AI Remote MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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