get_available_price_feeds

WHAT IT DOES

What get_available_price_feeds does on Sperax Ecosystem Crypto & DeFI MCP Server

AI agents call get_available_price_feeds 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.

THE RISK

Low Risk

Why get_available_price_feeds needs a policy

This tool retrieves and lists information about available price feeds from Chainlink. It is a read-only operation with no side effects, no data modification, no code execution, and no financial transaction. The blast radius of misuse is minimal—an agent could only access publicly available price feed information. This is classified as Read with low severity.

From the tool's definition The tool 'get_available_price_feeds' with description 'List available Chainlink price feeds on a network' performs a data retrieval operation. The use of 'List' indicates querying available feeds without modifying state or executing external operations.

Documented attack patterns abuse exactly the kind of access get_available_price_feeds gives an agent:

POLICY

How to control get_available_price_feeds

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 get_available_price_feeds:

policy.json

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

get_available_price_feeds is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Sperax Ecosystem Crypto & DeFI MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about get_available_price_feeds

What does the get_available_price_feeds tool do? +

List available Chainlink price feeds on a network. 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.

How do I enforce a policy on get_available_price_feeds? +

Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for get_available_price_feeds: 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.

What risk level is get_available_price_feeds? +

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

Can I rate-limit get_available_price_feeds? +

Yes. Add a rate_limit block to the get_available_price_feeds 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_available_price_feeds completely? +

Set action: deny in the PolicyLayer policy for get_available_price_feeds. 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_available_price_feeds? +

get_available_price_feeds 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.

Enforce policy on every Sperax Ecosystem Crypto & DeFI MCP Server tool call.

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.