deposit-preauth

Grant or revoke preauthorization for an account to deliver payments to your account

SERVERXrpl mcp SOURCEromthpt/mcp-xrpl

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/romthpt-mcp-xrpl/deposit-preauth.md

WHAT IT DOES

What deposit-preauth does on Xrpl mcp

AI agents use deposit-preauth to create or update resources in Xrpl mcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Xrpl mcp environment.

RISK

Why deposit-preauth is rated Medium

This tool modifies authorization settings on the XRP Ledger — granting or revoking preauthorization for payments. It creates or changes ledger state in a reversible way (a revoke can undo a grant and vice versa), so it falls under Write. It does not itself move funds, execute code, or irreversibly destroy data.

From the tool's definition Grant or revoke preauthorization for an account to deliver payments to your account

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs deposit-preauth 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 deposit-preauth, this is the rule to start with:

deposit-preauth Rate-limited

deposit-preauth stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "deposit-preauth": {
      "limits": [
        {
          "counter": "deposit-preauth_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Xrpl mcp, apply this rule, and every deposit-preauth call is checked against it from then on.

FAQ

Questions about deposit-preauth

What does the deposit-preauth tool do? +

Grant or revoke preauthorization for an account to deliver payments to your account. It is categorised as a Write tool in the Xrpl mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on deposit-preauth? +

Register the Xrpl MCP server in PolicyLayer and add a rule for deposit-preauth: 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.

What risk level is deposit-preauth? +

deposit-preauth is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit deposit-preauth? +

Yes. Add a rate_limit block to the deposit-preauth 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.

How do I block deposit-preauth completely? +

Set action: deny in the PolicyLayer policy for deposit-preauth. 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.

What MCP server provides deposit-preauth? +

deposit-preauth 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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