DeFi protocol Total Value Locked from DeFiLlama. Returns top 10 or a specific protocol.
AI agents call defi_tvl to retrieve information from AgentPay x402 — Economic-intelligence layer for AI Agents without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward read operation querying public blockchain/DeFi data. No side effects, no state changes, no code execution, no financial transactions. The data returned (TVL metrics) is informational and immutable. Risk is minimal even if misused by an agent — worst case is wasted API credits on redundant queries.
From the tool's definition Tool returns DeFi protocol Total Value Locked (TVL) data from DeFiLlama. Described as 'Returns top 10 or a specific protocol' — a data retrieval operation with no modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
DeFi protocol Total Value Locked from DeFiLlama. Returns top 10 or a specific protocol. It is categorised as a Read tool in the AgentPay x402 — Economic-intelligence layer for AI Agents MCP Server, which means it retrieves data without modifying state.
Register the AgentPay x402 — Economic-intelligence layer for AI Agents MCP server in PolicyLayer and add a rule for defi_tvl: 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 AgentPay x402 — Economic-intelligence layer for AI Agents. Nothing to install.
defi_tvl 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 defi_tvl 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 defi_tvl. 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.
defi_tvl is provided by the AgentPay x402 — Economic-intelligence layer for AI Agents MCP server (romudille-bit/agentpay). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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