search_news_by_coin

A read tool on the OpenNews MCP server.

SERVEROpenNews MCP SOURCE6551team/opennews-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/6551team-opennews-mcp/search-news-by-coin.md

WHAT IT DOES

What search_news_by_coin does on OpenNews MCP

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

RISK

Why search_news_by_coin is rated Low

This tool queries cryptocurrency news data filtered by coin without modifying, deleting, or executing external operations. It is a retrieval function consistent with the server's stated purpose of news aggregation.

From the tool's definition Tool name indicates a search/retrieval function ('search_news_by_coin'). Server description confirms the tool suite provides 'search news by coin' capability as part of news aggregation and retrieval.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs search_news_by_coin safely

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

search_news_by_coin Allowed

search_news_by_coin 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": {
    "search_news_by_coin": {}
  }
}

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

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

FAQ

Questions about search_news_by_coin

What does the search_news_by_coin tool do? +

search_news_by_coin is a read tool on the OpenNews MCP server. It is categorised as a Read tool in the OpenNews MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on search_news_by_coin? +

Register the OpenNews MCP server in PolicyLayer and add a rule for search_news_by_coin: 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 OpenNews MCP. Nothing to install.

What risk level is search_news_by_coin? +

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

Can I rate-limit search_news_by_coin? +

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

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

search_news_by_coin is provided by the OpenNews MCP server (6551team/opennews-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on OpenNews, and thousands of servers like it.

This server

All 19 OpenNews tools →

Across the catalogue

search_torrents on M-Team MCP Server →aiva_search_customers on AIVA MCP Server →search_channel on YouTube MCP Server →hybrid_search on Azure AI Agent Service + Azure AI Search MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →