Search the web for information. Returns instant answers and organic results. Free tier: 50 calls.
AI agents call search_web to retrieve information from Search Proxy MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries publicly available web search results without modifying, deleting, or executing any data. It is a read-only operation with minimal security risk—worst case, an agent makes unnecessary queries within quota limits or returns irrelevant search results.
From the tool's definition Tool is named 'search_web' and described as 'Search the web for information. Returns instant answers and organic results.' The server description states it 'Enables AI agents to search the web, find news, and read page content' with no mention of…
Attacks that exploit this kind of access
Search the web for information. Returns instant answers and organic results. Free tier: 50 calls. It is categorised as a Read tool in the Search Proxy MCP MCP Server, which means it retrieves data without modifying state.
Register the Search Proxy MCP server in PolicyLayer and add a rule for search_web: 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 Search Proxy MCP. Nothing to install.
search_web is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the search_web 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.
Set action: deny in the PolicyLayer policy for search_web. 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.
search_web is provided by the Search Proxy MCP server (rumblingb/search-proxy-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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