This record as markdown: /tools/minhoyoo-iotrust-waiaas/x402-fetch.md
What x402_fetch does on Waiaas
AI agents call x402_fetch to retrieve information from Waiaas without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why x402_fetch is rated Low
The 'fetch' verb indicates data retrieval without side effects. Despite the empty description lowering confidence, the naming convention and context of an x402 payment system (which manages payment conditions rather than executing payments directly) suggests this tool retrieves or queries payment metadata or status. However, without explicit documentation, confidence is moderate.
From the tool's definition Tool name 'x402_fetch' with 'fetch' suffix suggests a retrieval operation typical of Read category. X402 refers to the HTTP 402 Payment Required standard mentioned in the server description.
Attacks that exploit this kind of access
The rule that runs x402_fetch safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Waiaas, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For x402_fetch, this is the rule to start with:
x402_fetch is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Waiaas, apply this rule, and every x402_fetch call is checked against it from then on.
Questions about x402_fetch
x402_fetch is a read tool on the Waiaas MCP server. It is categorised as a Read tool in the Waiaas MCP Server, which means it retrieves data without modifying state.
Register the Waiaas MCP server in PolicyLayer and add a rule for 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 Waiaas. Nothing to install.
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 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 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.
x402_fetch is provided by the Waiaas MCP server (minhoyoo-iotrust/waiaas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Waiaas, and thousands of servers like it.
This server
Across the catalogue