Fetch x402-protected resources with automatic payment. Makes HTTP request, detects 402 Payment Required, pays using Cloaked Agent, retries with payment proof, returns content. Test server available at https://api.cloakedagent.com/api/x402-test/paid-content (0.001 SOL).
Part of the Cloaked Agent server.
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AI agents call cloak_x402_fetch to retrieve information from Cloaked Agent without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though cloak_x402_fetch only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"cloak_x402_fetch": {}
}
}See the full Cloaked Agent policy for all 14 tools.
These attack patterns abuse exactly the kind of access cloak_x402_fetch gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Fetch x402-protected resources with automatic payment. Makes HTTP request, detects 402 Payment Required, pays using Cloaked Agent, retries with payment proof, returns content. Test server available at https://api.cloakedagent.com/api/x402-test/paid-content (0.001 SOL).. It is categorised as a Read tool in the Cloaked Agent MCP Server, which means it retrieves data without modifying state.
Register the Cloaked Agent MCP server in PolicyLayer and add a rule for cloak_x402_fetch: 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 Cloaked Agent. Nothing to install.
cloak_x402_fetch 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 cloak_x402_fetch 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 cloak_x402_fetch. 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.
cloak_x402_fetch is provided by the Cloaked Agent MCP server (@cloakedagent/sdk). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 Cloaked Agent tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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