spraay_free_agent_card
ERC-8004 agent registry lookup. Free to call. Read-only. Pass any query parameters as a JSON string via the params argument.
This record as markdown: /tools/io-github-plagtech-spraay-x402-mcp/spraay-free-agent-card.md
What spraay_free_agent_card does on Spraay X402 Mcp
AI agents call spraay_free_agent_card to retrieve information from Spraay X402 Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why spraay_free_agent_card is rated Low
This tool performs a registry lookup query without side effects. The description explicitly confirms it is 'read-only', meaning it retrieves data from an ERC-8004 agent registry without modifying, executing, or destructing anything. The 'free to call' qualifier further indicates no financial impact. Even in a crypto/DeFi context, a read-only lookup has minimal blast radius if misused by an AI agent.
From the tool's definition 'ERC-8004 agent registry lookup. Free to call. Read-only.' - explicitly stated as read-only lookup operation with no mutation or execution capabilities.
Attacks that exploit this kind of access
The rule that runs spraay_free_agent_card safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Spraay X402 Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For spraay_free_agent_card, this is the rule to start with:
spraay_free_agent_card 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 Spraay X402 Mcp, apply this rule, and every spraay_free_agent_card call is checked against it from then on.
Questions about spraay_free_agent_card
ERC-8004 agent registry lookup. Free to call. Read-only. Pass any query parameters as a JSON string via the params argument. It is categorised as a Read tool in the Spraay X402 Mcp MCP Server, which means it retrieves data without modifying state.
Register the Spraay X402 MCP server in PolicyLayer and add a rule for spraay_free_agent_card: 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 Spraay X402 Mcp. Nothing to install.
spraay_free_agent_card 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 spraay_free_agent_card 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 spraay_free_agent_card. 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.
spraay_free_agent_card is provided by the Spraay X402 MCP server (spraay-x402-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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