build_swap
AI agents use build_swap to commit financial operations through Aerodrome Swap MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
The tool name 'build_swap' on a server explicitly designed for token swaps strongly implies it constructs a financial transaction to exchange tokens. Even though the description is empty, the server context (Aerodrome Swap, token swaps, financial operations) and the tool name indicate this is a Financial category action.
From the tool's definition Tool name 'build_swap' on a server described as enabling 'token swaps'; sibling tools include 'get_quote' and swap-related operations suggesting this builds a financial swap transaction.
Attacks that exploit this kind of access
build_swap. It is categorised as a Financial tool in the Aerodrome Swap MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Aerodrome Swap MCP Server MCP server in PolicyLayer and add a rule for build_swap: 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 Aerodrome Swap MCP Server. Nothing to install.
build_swap 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 build_swap 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 build_swap. 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.
build_swap is provided by the Aerodrome Swap MCP Server MCP server (protagolabs/aerodrome-swap-mcp). 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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