AI agents call x402_info to retrieve information from AgentPay without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns informational metadata about supported payment networks, tokens, and funding mechanisms. It has no side effects, does not execute code, modify data, delete data, or move money. It is purely a lookup/informational tool, placing it firmly in the Read category with low severity.
From the tool's definition Tool name 'x402_info' and description 'Get information about x402 crypto payment support — which networks, tokens, and funding options are available' indicates retrieval of configuration/informational data only.
Attacks that exploit this kind of access
Get information about x402 crypto payment support — which networks, tokens, and funding options are available for autonomous wallet funding. It is categorised as a Read tool in the AgentPay MCP Server, which means it retrieves data without modifying state.
Register the AgentPay MCP server in PolicyLayer and add a rule for x402_info: 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 AgentPay. Nothing to install.
x402_info 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 x402_info 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 x402_info. 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.
x402_info is provided by the AgentPay MCP server (joepangallo/mcp-server-agentpay). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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