x402_discover_payment_requirements
Probe an x402-protected HTTP endpoint and return its payment requirements (the
This record as markdown: /tools/goplausible-algorand-mcp/x402-discover-payment-requirements.md
What x402_discover_payment_requirements does on Algorand MCP
AI agents call x402_discover_payment_requirements to retrieve information from Algorand MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why x402_discover_payment_requirements is rated Low
The tool discovers and returns payment requirement information from an HTTP endpoint. This is fundamentally a READ operation: it retrieves data (payment requirements metadata) with no side effects, no state changes, and no financial commitment.
From the tool's definition Tool name and description indicate it 'Probe an x402-protected HTTP endpoint and return its payment requirements' — a retrieval operation that queries metadata about payment terms without executing payments, modifying data, or triggering financial…
Attacks that exploit this kind of access
The rule that runs x402_discover_payment_requirements safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Algorand MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For x402_discover_payment_requirements, this is the rule to start with:
x402_discover_payment_requirements 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 Algorand MCP, apply this rule, and every x402_discover_payment_requirements call is checked against it from then on.
Questions about x402_discover_payment_requirements
Probe an x402-protected HTTP endpoint and return its payment requirements (the. It is categorised as a Read tool in the Algorand MCP MCP Server, which means it retrieves data without modifying state.
Register the Algorand MCP server in PolicyLayer and add a rule for x402_discover_payment_requirements: 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 Algorand MCP. Nothing to install.
x402_discover_payment_requirements 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_discover_payment_requirements 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_discover_payment_requirements. 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_discover_payment_requirements is provided by the Algorand MCP server (goplausible/algorand-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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