AI agents use eth_swap_eth_to_usdt to commit financial operations through PortalMCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool performs a live financial transaction on the Ethereum blockchain, exchanging ETH for USDT via Uniswap V3. It commits real financial assets and executes the swap immediately. Misuse by an AI agent could result in unauthorized token swaps, financial loss, and irreversible on-chain transactions. Financial category applies as the highest severity since it directly moves monetary value.
From the tool's definition Swap ETH to USDT using Uniswap V3 and execute the transaction
Attacks that exploit this kind of access
Swap ETH to USDT using Uniswap V3 and execute the transaction. It is categorised as a Financial tool in the PortalMCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Portal MCP server in PolicyLayer and add a rule for eth_swap_eth_to_usdt: 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 PortalMCP. Nothing to install.
eth_swap_eth_to_usdt is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the eth_swap_eth_to_usdt 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 eth_swap_eth_to_usdt. 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.
eth_swap_eth_to_usdt is provided by the Portal MCP server (portalfnd/portalmcp). 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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