AI agents call list_derivatives_exchanges to retrieve information from Coin without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'list_' prefix strongly indicates a retrieval operation that queries available derivatives exchanges. As a market-data server, this is consistent with Read category tools (e.g., compare_prices, get_coin_details, dex_search) that provide information for answering market questions. No side effects or data modifications are implied.
From the tool's definition Tool named 'list_derivatives_exchanges' with empty description. Based on naming convention and context as a cryptocurrency market-data MCP server, this tool appears to retrieve/list exchange information without modifying data.
Attacks that exploit this kind of access
list_derivatives_exchanges. It is categorised as a Read tool in the Coin MCP Server, which means it retrieves data without modifying state.
Register the Coin MCP server in PolicyLayer and add a rule for list_derivatives_exchanges: 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 Coin. Nothing to install.
list_derivatives_exchanges 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 list_derivatives_exchanges 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 list_derivatives_exchanges. 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.
list_derivatives_exchanges is provided by the Coin MCP server (sweetcornna/coin-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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