x402DiscoverResources

THE RISK

Low Risk

Why x402DiscoverResources needs a policy

This tool performs discovery and search operations against an API catalog. It retrieves metadata about available services but does not create, modify, delete, or execute any services. The word 'Discover' and 'Search' are characteristic of Read operations. No side effects or irreversible changes are indicated. Confidence is high because the description clearly indicates data retrieval only.

From the tool's definition Tool description states 'Discover available x402-enabled paid services and APIs' and 'Search by keyword or category' — these are query/search operations that retrieve information without modifying or executing anything.

Documented attack patterns abuse exactly the kind of access x402DiscoverResources gives an agent:

POLICY

How to control x402DiscoverResources

PolicyLayer is an MCP gateway — it sits between your AI agents and Agentek Eth, and nothing reaches the server without passing your rules. This is the rule we recommend for x402DiscoverResources:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "x402DiscoverResources": {}
  }
}

x402DiscoverResources is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Agentek Eth — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about x402DiscoverResources

What does the x402DiscoverResources tool do? +

Discover available x402-enabled paid services and APIs using the Bazaar discovery API. Search by keyword or category. It is categorised as a Read tool in the Agentek Eth MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on x402DiscoverResources? +

Register the Agentek Eth MCP server in PolicyLayer and add a rule for x402DiscoverResources: 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 Agentek Eth. Nothing to install.

What risk level is x402DiscoverResources? +

x402DiscoverResources is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit x402DiscoverResources? +

Yes. Add a rate_limit block to the x402DiscoverResources 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 x402DiscoverResources completely? +

Set action: deny in the PolicyLayer policy for x402DiscoverResources. 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 x402DiscoverResources? +

x402DiscoverResources is provided by the Agentek Eth MCP server (nanidao/agentek). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Agentek Eth tool call.

Start from Agentek Eth, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →