zest_borrow
Borrow assets from Zest Protocol (v0-4-market). Borrows assets against your supplied collateral. Ensure you have sufficient collateral to maintain a healthy LTV. You can use the asset symbol (e.g.,
This record as markdown: /tools/io-github-aibtcdev-mcp-server/zest-borrow.md
What zest_borrow does on Aibtc
AI agents use zest_borrow to commit financial operations through Aibtc, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why zest_borrow is rated Critical
This tool initiates a borrowing operation against collateral in a DeFi lending protocol, which constitutes a financial obligation. Misuse could result in under-collateralized loans, liquidation risks, or significant financial loss. It falls squarely in the Financial category as it creates real financial liabilities on-chain.
From the tool's definition Borrow assets from Zest Protocol... Borrows assets against your supplied collateral.
Attacks that exploit this kind of access
The rule that runs zest_borrow safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Aibtc, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For zest_borrow, this is the rule to start with:
Any call to zest_borrow is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Aibtc, apply this rule, and every zest_borrow call is checked against it from then on.
Questions about zest_borrow
Borrow assets from Zest Protocol (v0-4-market). Borrows assets against your supplied collateral. Ensure you have sufficient collateral to maintain a healthy LTV. You can use the asset symbol (e.g.,. It is categorised as a Financial tool in the Aibtc MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Aibtc MCP server in PolicyLayer and add a rule for zest_borrow: 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 Aibtc. Nothing to install.
zest_borrow 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 zest_borrow 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 zest_borrow. 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.
zest_borrow is provided by the Aibtc MCP server (aibtcdev/aibtc-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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