get_top_gainers_losers

A read tool on the REI Crypto MCP server.

SERVERREI Crypto MCP Server SOURCE0xreisearch/crypto-mcp-beta

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade B, identity unverified Pull the record →

This record as markdown: /tools/0xreisearch-crypto-mcp-beta/get-top-gainers-losers.md

WHAT IT DOES

What get_top_gainers_losers does on REI Crypto MCP Server

AI agents call get_top_gainers_losers to retrieve information from REI Crypto MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_top_gainers_losers is rated Low

This tool retrieves cryptocurrency market data (gainers/losers rankings) without modifying, executing, or deleting anything. It is a read operation that queries external data sources. Confidence is 0.85 (not higher) because the description is empty, but the name and server context strongly indicate read-only data retrieval.

From the tool's definition Tool name 'get_top_gainers_losers' indicates data retrieval of cryptocurrency price/performance metrics. Context shows the server aggregates data from DefiLlama Pro, CoinGecko Pro, and Arkham Intelligence—data providers that specialize in read-only analytics.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_top_gainers_losers safely

PolicyLayer is an MCP gateway: it sits between your AI agents and REI Crypto MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_top_gainers_losers, this is the rule to start with:

get_top_gainers_losers Allowed

get_top_gainers_losers is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_top_gainers_losers": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect REI Crypto MCP Server, apply this rule, and every get_top_gainers_losers call is checked against it from then on.

FAQ

Questions about get_top_gainers_losers

What does the get_top_gainers_losers tool do? +

get_top_gainers_losers is a read tool on the REI Crypto MCP Server MCP server. It is categorised as a Read tool in the REI Crypto MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_top_gainers_losers? +

Register the REI Crypto MCP Server MCP server in PolicyLayer and add a rule for get_top_gainers_losers: 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 REI Crypto MCP Server. Nothing to install.

What risk level is get_top_gainers_losers? +

get_top_gainers_losers is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_top_gainers_losers? +

Yes. Add a rate_limit block to the get_top_gainers_losers 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.

How do I block get_top_gainers_losers completely? +

Set action: deny in the PolicyLayer policy for get_top_gainers_losers. 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.

What MCP server provides get_top_gainers_losers? +

get_top_gainers_losers is provided by the REI Crypto MCP Server MCP server (0xreisearch/crypto-mcp-beta). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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