Returns all static metadata for one or more decentralised exchanges.
AI agents call dexInfo to retrieve information from CoinMarketCap MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward data retrieval function that queries exchange metadata without side effects. It fits the Read category definition: 'retrieves or queries data; no side effects.' The tool cannot modify data, execute operations, delete information, or move funds. Severity is low because misuse would only expose publicly available blockchain and exchange information, with minimal blast radius.
From the tool's definition Tool returns 'static metadata for one or more decentralised exchanges' with no indication of modification, deletion, execution, or financial transaction capabilities.
Documented attack patterns abuse exactly the kind of access dexInfo gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and CoinMarketCap MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for dexInfo:
{
"version": "1",
"default": "deny",
"tools": {
"dexInfo": {}
}
}dexInfo is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Returns all static metadata for one or more decentralised exchanges. It is categorised as a Read tool in the CoinMarketCap MCP MCP Server, which means it retrieves data without modifying state.
Register the CoinMarketCap MCP server in PolicyLayer and add a rule for dexInfo: 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 CoinMarketCap MCP. Nothing to install.
dexInfo 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 dexInfo 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 dexInfo. 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.
dexInfo is provided by the CoinMarketCap MCP server (shinzo-labs/coinmarketcap-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 51 CoinMarketCap MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
51 CoinMarketCap MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.