get_yield_perps

GET /yields/perps

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-yield-perps.md

WHAT IT DOES

What get_yield_perps does on REI Crypto MCP Server

AI agents call get_yield_perps 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_yield_perps is rated Low

This tool queries cryptocurrency yield and perpetual swap data from DefiLlama Pro. It performs data retrieval with no side effects, reversible modifications, or destructive actions. The GET HTTP method and passive retrieval purpose classify it as Read. Low severity because misuse would only expose market data already publicly available through crypto APIs.

From the tool's definition Tool name 'get_yield_perps' with GET method and description 'GET /yields/perps' indicates a read-only API endpoint that retrieves yield/perpetual data. No mutative operations, no code execution, no financial transactions.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_yield_perps 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_yield_perps, this is the rule to start with:

get_yield_perps Allowed

get_yield_perps 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_yield_perps": {}
  }
}

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_yield_perps call is checked against it from then on.

FAQ

Questions about get_yield_perps

What does the get_yield_perps tool do? +

GET /yields/perps. 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_yield_perps? +

Register the REI Crypto MCP Server MCP server in PolicyLayer and add a rule for get_yield_perps: 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_yield_perps? +

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

Can I rate-limit get_yield_perps? +

Yes. Add a rate_limit block to the get_yield_perps 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_yield_perps completely? +

Set action: deny in the PolicyLayer policy for get_yield_perps. 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_yield_perps? +

get_yield_perps 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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