Search the web (Google results). Costs $0.01 per call, paid automatically in USDC via x402.
AI agents call web_search to retrieve information from X402 Agents without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves search results from the web without modifying, executing code, deleting data, or moving money. Although there is a financial component (cost per call), the tool itself does not commit financial transactions or move funds—it only performs a read query. The read capability is primary and most severe.
From the tool's definition Tool name 'web_search' and description 'Search the web (Google results)' indicate a retrieval operation with no data modification or execution capability. The cost structure ($0.01 per call) reflects a read operation against an external service.
Attacks that exploit this kind of access
Search the web (Google results). Costs $0.01 per call, paid automatically in USDC via x402. It is categorised as a Read tool in the X402 Agents MCP Server, which means it retrieves data without modifying state.
Register the X402 Agents MCP server in PolicyLayer and add a rule for web_search: 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 X402 Agents. Nothing to install.
web_search 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 web_search 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 web_search. 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.
web_search is provided by the X402 Agents MCP server (enrichgateagent-png/x402-agents). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
web_search is one line of X402 Agents's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →