Get current TRX price from CoinGecko. No auth required.
AI agents call get_trx_price to retrieve information from MERX - TRON Resource Exchange without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves publicly available cryptocurrency price information without modifying any state, executing code, or triggering financial transactions. It is a simple read/query operation with minimal blast radius if misused by an AI agent—at worst, an agent might make suboptimal decisions based on stale or incorrect price data, but the tool itself cannot cause financial loss or data destruction.
From the tool's definition Tool description states 'Get current TRX price from CoinGecko' — a data retrieval operation with 'No auth required'. The name and description indicate querying public market data without side effects.
Attacks that exploit this kind of access
Get current TRX price from CoinGecko. No auth required. It is categorised as a Read tool in the MERX - TRON Resource Exchange MCP Server, which means it retrieves data without modifying state.
Register the MERX - TRON Resource Exchange MCP server in PolicyLayer and add a rule for get_trx_price: 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.
get_trx_price is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_trx_price 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 get_trx_price. 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.
get_trx_price 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.
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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