This record as markdown: /tools/romthpt-mcp-xrpl/amm-bid.md
What amm-bid does on Xrpl mcp
AI agents use amm-bid to commit financial operations through Xrpl mcp, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why amm-bid is rated Critical
Placing a bid on an AMM involves committing financial resources (XRP or tokens) to acquire auction slot rights on the AMM. This is a financial transaction on the XRP Ledger that moves or commits digital assets, making it a Financial category action. Misuse could result in unintended financial commitments or asset loss.
From the tool's definition Place a bid on an Automated Market Maker
Attacks that exploit this kind of access
The rule that runs amm-bid safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Xrpl mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For amm-bid, this is the rule to start with:
Any call to amm-bid is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Xrpl mcp, apply this rule, and every amm-bid call is checked against it from then on.
Questions about amm-bid
Place a bid on an Automated Market Maker. It is categorised as a Financial tool in the Xrpl mcp MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Xrpl MCP server in PolicyLayer and add a rule for amm-bid: 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 Xrpl mcp. Nothing to install.
amm-bid 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 amm-bid 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 amm-bid. 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.
amm-bid is provided by the Xrpl MCP server (romthpt/mcp-xrpl). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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