Get cryptocurrency news filtered by type (handpicked, trending, latest, bullish, bearish)
AI agents call market_get_news_by_type 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 purely informational tool that queries and returns news data without side effects. It does not create, modify, delete data, execute commands, or involve financial transactions. The filtering parameters are news categories, not operations that would affect blockchain state or user assets. Classification as Read is appropriate for this informational retrieval function.
From the tool's definition Tool retrieves cryptocurrency news filtered by type (handpicked, trending, latest, bullish, bearish). The description uses 'Get' which indicates data retrieval. There is no mention of modifying, deleting, executing code, or moving funds.
Documented attack patterns abuse exactly the kind of access market_get_news_by_type 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_news_by_type:
{
"version": "1",
"default": "deny",
"tools": {
"market_get_news_by_type": {}
}
} market_get_news_by_type is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get cryptocurrency news filtered by type (handpicked, trending, latest, bullish, bearish). 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_news_by_type: 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_news_by_type 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_news_by_type 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_news_by_type. 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_news_by_type 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.
Free to start. No card required.
1318 Sperax Ecosystem Crypto & DeFI MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.