Get global cryptocurrency market statistics (total market cap, volume, BTC dominance, etc.)
AI agents call market_get_global to retrieve information from Sperax Ecosystem Crypto & DeFI MCP Server 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 operation that queries public market statistics. It has no capability to modify state, execute code, delete data, or move funds. The blast radius if misused is minimal since an AI agent retrieving market statistics cannot cause harm through this tool alone. Classification as Read is appropriate.
From the tool's definition Tool description states 'Get global cryptocurrency market statistics (total market cap, volume, BTC dominance, etc.)' - purely retrieves and queries aggregate market data with no side effects, no modifications, no code execution, and no financial transactions.
Documented attack patterns abuse exactly the kind of access market_get_global gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sperax Ecosystem Crypto & DeFI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for market_get_global:
{
"version": "1",
"default": "deny",
"tools": {
"market_get_global": {}
}
} market_get_global is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get global cryptocurrency market statistics (total market cap, volume, BTC dominance, etc.). It is categorised as a Read tool in the Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for market_get_global: 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 Sperax Ecosystem Crypto & DeFI MCP Server. Nothing to install.
market_get_global 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 market_get_global 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 market_get_global. 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.
market_get_global is provided by the Sperax Ecosystem Crypto & DeFI MCP Server MCP server (sperax/sperax-crypto-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Sperax Ecosystem Crypto & DeFI MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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1318 Sperax Ecosystem Crypto & DeFI MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.