Transfer between futures and spot.
AI agents use transferAsset to commit financial operations through Aster Finance MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool directly moves cryptocurrency assets between futures and spot accounts, which constitutes a financial transaction that commits or redirects financial obligations and value. Misuse by an AI agent could result in unintended asset transfers, account imbalance, or loss of user funds. This is the highest-severity category (Financial) as it involves movement of money/cryptocurrency.
From the tool's definition Tool name is 'transferAsset' with description 'Transfer between futures and spot.' In the context of a cryptocurrency trading API (Aster Finance), transfers move funds between account types.
Attacks that exploit this kind of access
Transfer between futures and spot. It is categorised as a Financial tool in the Aster Finance MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Aster Finance MCP Server MCP server in PolicyLayer and add a rule for transferAsset: 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 Aster Finance MCP Server. Nothing to install.
transferAsset 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 transferAsset 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 transferAsset. 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.
transferAsset is provided by the Aster Finance MCP Server MCP server (questflowai/aster-mcp-server). 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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