Configure automatic top-up when balance drops below a threshold. The configuration lives ONLY in the current MCP session — it is held in memory by the MCP server process and is lost on server restart, MCP client reconnect, or server redeploy. Top-ups are signed locally with TRON_PRIVATE_KEY and s...
AI agents use enable_auto_deposit to commit financial operations through MERX - TRON Resource Exchange — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool commits financial obligations by automatically triggering deposits/top-ups when balance thresholds are reached. Even though the configuration is session-based and ephemeral, the actual financial transfers are real and irreversible. An agent misconfigured to set very low thresholds or without proper safeguards could drain funds repeatedly.
From the tool's definition Tool configures automatic top-up when balance drops below a threshold, with top-ups signed using TRON_PRIVATE_KEY and sent to deposit address. This moves money (TRON resources) automatically based on configured triggers.
Attacks that exploit this kind of access
Configure automatic top-up when balance drops below a threshold. The configuration lives ONLY in the current MCP session — it is held in memory by the MCP server process and is lost on server restart, MCP client reconnect, or server redeploy. Top-ups are signed locally with TRON_PRIVATE_KEY and sent to your Merx deposit address (memo-routed). For persistent auto-deposit you currently need to call this tool again at the start of each session. It is categorised as a Financial tool in the MERX - TRON Resource Exchange MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the MERX - TRON Resource Exchange MCP server in PolicyLayer and add a rule for enable_auto_deposit: 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 MERX - TRON Resource Exchange. Nothing to install.
enable_auto_deposit 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 enable_auto_deposit 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 enable_auto_deposit. 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.
enable_auto_deposit is provided by the MERX - TRON Resource Exchange MCP server (Hovsteder/merx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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