hl_transfer_usdc
Transfer USDC between Spot and Perp accounts on Hyperliquid
This record as markdown: /tools/minhoyoo-iotrust-waiaas/hl-transfer-usdc.md
What hl_transfer_usdc does on Waiaas
AI agents use hl_transfer_usdc to commit financial operations through Waiaas, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why hl_transfer_usdc is rated Critical
This tool moves USDC, a USD-denominated stablecoin with real monetary value, between different account types (Spot and Perp) on Hyperliquid. Even though the transfer is between accounts on the same platform rather than to external addresses, it represents a commitment of financial assets and can expose the agent to market risk (e.g., transferring to a Perp account for leveraged trading).
From the tool's definition Tool name 'hl_transfer_usdc' and description 'Transfer USDC between Spot and Perp accounts' directly indicates movement of a stablecoin (USDC) across accounts. USDC is a real financial asset with monetary value.
Attacks that exploit this kind of access
The rule that runs hl_transfer_usdc 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 hl_transfer_usdc, this is the rule to start with:
Any call to hl_transfer_usdc is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Waiaas, apply this rule, and every hl_transfer_usdc call is checked against it from then on.
Questions about hl_transfer_usdc
Transfer USDC between Spot and Perp accounts on Hyperliquid. It is categorised as a Financial tool in the Waiaas MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Waiaas MCP server in PolicyLayer and add a rule for hl_transfer_usdc: 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.
hl_transfer_usdc 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 hl_transfer_usdc 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 hl_transfer_usdc. 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.
hl_transfer_usdc 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.
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